| blob | d01b9f3eb0871102b600d245a30cf663da1f6406 |
1 ;;; gnus-art.el --- article mode commands for Gnus
3 ;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4 ;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
6 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
7 ;; Keywords: news
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software: you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation, either version 3 of the License, or
14 ;; (at your option) any later version.
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
24 ;;; Commentary:
26 ;;; Code:
28 ;; For Emacs < 22.2.
37 ;; Avoid the "Recursive load suspected" error in Emacs 21.1.
61 "Article display."
66 "Treating article parts."
71 "Hiding article parts."
76 "Article highlighting."
82 "Article signatures."
87 "Article headers."
92 "Special commands on articles."
97 "Fontisizing articles."
102 "Saving articles."
107 "Worshiping the MIME wonder."
112 "Pushable buttons in the article buffer."
117 "Other article options."
166 "*All headers that start with this regexp will be hidden.
167 This variable can also be a list of regexps of headers to be ignored.
168 If `gnus-visible-headers' is non-nil, this variable will be ignored."
170 regexp
175 "^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:\\|^X-Sent:"
176 "*All headers that do not match this regexp will be hidden.
177 This variable can also be a list of regexp of headers to remain visible.
178 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
185 regexp)
187 regexp)
193 "*This variable is a list of regular expressions.
194 If it is non-nil, headers that match the regular expressions will
195 be placed first in the article buffer in the sequence specified by
196 this list."
201 "Headers that are only to be displayed if they have interesting data.
202 Possible values in this list are:
204 'empty Headers with no content.
205 'newsgroups Newsgroup identical to Gnus group.
206 'to-address To identical to To-address.
207 'to-list To identical to To-list.
208 'cc-list CC identical to To-list.
209 'followup-to Followup-to identical to Newsgroups.
210 'reply-to Reply-to identical to From.
211 'date Date less than four days old.
212 'long-to To and/or Cc longer than 1024 characters.
213 'many-to Multiple To and/or Cc."
227 "Skip over text that is not worth reading.
228 By default, if you set this t, then Gnus will display citations and
229 signatures, but will never scroll down to show you a page consisting
230 only of boring text. Boring text is controlled by
231 `gnus-article-boring-faces'."
237 "Regexp matching signature separator.
238 This can also be a list of regexps. In that case, it will be checked
239 from head to tail looking for a separator. Searches will be done from
240 the end of the buffer."
247 "Provide a limit to what is considered a signature.
248 If it is a number, no signature may not be longer (in characters) than
249 that number. If it is a floating point number, no signature may be
250 longer (in lines) than that number. If it is a function, the function
251 will be called without any parameters, and if it returns nil, there is
252 no signature in the buffer. If it is a string, it will be used as a
253 regexp. If it matches, the text in question is not a signature.
255 This can also be a list of the above values."
259 function
264 "Property list to use for hiding text."
268 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
269 ;; frames in a session.
274 'gnus-display-x-face-in-from
277 'gnus-display-x-face-in-from
278 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | \
280 "*String or function to be executed to display an X-Face header.
281 If it is a string, the command will be executed in a sub-shell
282 asynchronously. The compressed face will be piped to this command."
285 function)
291 "Regexp matching posters whose face shouldn't be shown automatically."
296 "Banner alist for stripping.
297 For example,
298 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
304 banner
305 :variable-document
306 "Alist of regexps (to match group names) and banner."
307 :variable-group gnus-article-washing
308 :parameter-type
310 :value nil
313 regexp
315 :parameter-document
316 "If non-nil, specify how to remove `banners' from articles.
318 Symbol `signature' means to remove signatures delimited by
319 `gnus-signature-separator'. Any other symbol is used to look up a
320 regular expression to match the banner in `gnus-article-banner-alist'.
321 A string is used as a regular expression to match the banner
325 "Alist of mail addresses and banners.
326 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
327 to match a mail address in the From: header, BANNER is one of a symbol
328 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
329 If ADDRESS matches author's mail address, it will remove things like
330 advertisements. For example:
333 "
340 regexp
355 2
358 value)))
366 pattern)
371 value))))
389 types))
391 ;; several times seen it triggered by normal text. --Stef
392 ;; Miles suggests that this form is sometimes used but for italics,
393 ;; so maybe we should map it to `italic'.
394 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
395 ;; 2 3 gnus-emphasis-strikethru)
398 "*Alist that says how to fontify certain phrases.
399 Each item looks like this:
403 The first element is a regular expression to be matched. The second
404 is a number that says what regular expression grouping used to find
405 the entire emphasized word. The third is a number that says what
406 regexp grouping should be displayed and highlighted. The fourth
407 is the face used for highlighting."
408 :type
415 :value-create
423 widget
424 :value
427 regexp
430 face)
438 face)))
444 value)))
448 "A regexp to describe whitespace which should not be emphasized.
450 The former avoids underlining of leading and trailing whitespace,
451 and the latter avoids underlining any whitespace at all."
457 "Face used for displaying strong emphasized text (*word*)."
461 "Face used for displaying italic emphasized text (/word/)."
465 "Face used for displaying underlined emphasized text (_word_)."
469 "Face used for displaying underlined bold emphasized text (_*word*_)."
473 "Face used for displaying underlined italic emphasized text (_/word/_)."
477 "Face used for displaying bold italic emphasized text (/*word*/)."
482 "Face used for displaying underlined bold italic emphasized text.
483 Example: (_/*word*/_)."
489 "Face used for displaying strike-through text (-word-)."
494 "Face used for displaying highlighted words."
498 "Format for display of Date headers in article bodies.
499 See `format-time-string' for the possible values.
501 The variable can also be function, which should return a complete Date
502 header. The function is called with one argument, the time, which can
503 be fed to `format-time-string'."
509 "*If non-nil, don't remove any headers before saving.
510 This will be overridden by the `:headers' property that the symbol of
511 the saver function, which is specified by `gnus-default-article-saver',
512 might have."
517 "*This variable says how much prompting is to be done when saving articles.
518 If it is nil, no prompting will be done, and the articles will be
519 saved to the default files. If this variable is `always', each and
520 every article that is saved will be preceded by a prompt, even when
521 saving large batches of articles. If this variable is neither nil not
522 `always', there the user will be prompted once for a file name for
523 each invocation of the saving commands."
530 "Headers to keep if `gnus-save-all-headers' is nil.
531 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
532 If that variable is nil, however, all headers that match this regexp
533 will be kept while the rest will be deleted before saving. This and
534 `gnus-save-all-headers' will be overridden by the `:headers' property
535 that the symbol of the saver function, which is specified by
536 `gnus-default-article-saver', might have."
540 ;; Note that "Rmail format" is mbox since Emacs 23, but Babyl before.
542 "A function to save articles in your favourite format.
543 The function will be called by way of the `gnus-summary-save-article'
544 command, and friends such as `gnus-summary-save-article-rmail'.
546 Gnus provides the following functions:
548 * gnus-summary-save-in-rmail (Rmail format)
549 * gnus-summary-save-in-mail (Unix mail format)
550 * gnus-summary-save-in-folder (MH folder)
551 * gnus-summary-save-in-file (article format)
552 * gnus-summary-save-body-in-file (article body)
553 * gnus-summary-save-in-vm (use VM's folder format)
554 * gnus-summary-write-to-file (article format -- overwrite)
555 * gnus-summary-write-body-to-file (article body -- overwrite)
556 * gnus-summary-save-in-pipe (article format)
558 The symbol of each function may have the following properties:
560 * :decode
561 The value non-nil means save decoded articles. This is meaningful
562 only with `gnus-summary-save-in-file', `gnus-summary-save-body-in-file',
563 `gnus-summary-write-to-file', `gnus-summary-write-body-to-file', and
564 `gnus-summary-save-in-pipe'.
566 * :function
567 The value specifies an alternative function which appends, not
568 overwrites, articles to a file. This implies that when saving many
569 articles at a time, `gnus-prompt-before-saving' is bound to t and all
570 articles are saved in a single file. This is meaningful only with
571 `gnus-summary-write-to-file' and `gnus-summary-write-body-to-file'.
573 * :headers
574 The value specifies the symbol of a variable of which the value
575 specifies headers to be saved. If it is omitted,
576 `gnus-save-all-headers' and `gnus-saved-headers' control what
577 headers should be saved."
595 "Coding system used to save decoded articles to a file.
597 The recommended coding systems are `utf-8', `iso-2022-7bit' and so on,
598 which can safely encode any characters in text. This is used by the
599 commands including:
601 * gnus-summary-save-article-file
602 * gnus-summary-save-article-body-file
603 * gnus-summary-write-article-file
604 * gnus-summary-write-article-body-file
606 and the functions to which you may set `gnus-default-article-saver':
608 * gnus-summary-save-in-file
609 * gnus-summary-save-body-in-file
610 * gnus-summary-write-to-file
611 * gnus-summary-write-body-to-file
613 Those commands and functions save just text displayed in the article
614 buffer to a file if the value of this variable is non-nil. Note that
615 buttonized MIME parts will be lost in a saved file in that case.
616 Otherwise, raw articles will be saved."
631 "A function generating a file name to save articles in Rmail format.
632 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
637 "A function generating a file name to save articles in Unix mail format.
638 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
643 "A function generating a file name to save articles in MH folder.
644 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
649 "A function generating a file name to save articles in article format.
650 The function is called with NEWSGROUP, HEADERS, and optional
651 LAST-FILE."
658 "*Variable used to suggest where articles are to be saved.
659 For instance, if you would like to save articles related to Gnus in
661 you could set this variable to something like:
666 This variable is an alist where the key is the match and the
667 value is a list of possible files to save in if the match is
668 non-nil.
670 If the match is a string, it is used as a regexp match on the
671 article. If the match is a symbol, that symbol will be funcalled
672 from the buffer of the article to be saved with the newsgroup as the
673 parameter. If it is a list, it will be evaled in the same buffer.
675 If this form or function returns a string, this string will be used as a
676 possible file name; and if it returns a non-nil list, that list will be
677 used as possible file names."
684 "*Regexp describing what to use as article page delimiters.
686 beginning of a line."
691 "*The format specification for the article mode line.
692 See `gnus-summary-mode-line-format' for a closer description.
694 The following additional specs are available:
696 %w The article washing status.
697 %m The number of MIME parts in the article."
702 "*A hook for Gnus article mode."
707 ;; Extracted from gnus-xmas-define in order to preserve user settings
710 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
714 "*Hook run after the creation of the article mode menu."
719 "*A hook called after an article has been prepared in the article buffer."
724 "List of headers to be removed when copying an article.
725 Each element is a regular expression."
735 "Face used for highlighting a button in the article buffer."
739 "Face used for highlighting buttons in the article buffer.
741 An article button is a piece of text that you can activate by pressing
742 `RET' or `mouse-2' above it."
747 "Face used for mouse highlighting in the article buffer.
749 Article buttons will be displayed in this face when the cursor is
750 above them."
755 "Face used for highlighting a signature in the article buffer.
756 Obsolete; use the face `gnus-signature' for customizations instead."
764 "Face used for highlighting a signature in the article buffer."
767 ;; backward-compatibility alias
780 "Face used for displaying from headers."
783 ;; backward-compatibility alias
796 "Face used for displaying subject headers."
799 ;; backward-compatibility alias
812 "Face used for displaying newsgroups headers.
813 In the default setup this face is only used for crossposted
814 articles."
817 ;; backward-compatibility alias
830 "Face used for displaying header names."
833 ;; backward-compatibility alias
848 ;; backward-compatibility alias
857 "*Controls highlighting of article headers.
859 An alist of the form (HEADER NAME CONTENT).
861 HEADER is a regular expression which should match the name of a
862 header and NAME and CONTENT are either face names or nil.
864 The name of each header field will be displayed using the face
865 specified by the first element in the list where HEADER matches
866 the header name and NAME is non-nil. Similarly, the content will
867 be displayed by the first non-nil matching CONTENT face."
882 "Alist of image types and properties applied to Face and X-Face images.
883 Here are examples:
885 ;; Specify the altitude of Face images in the From header.
886 \(setq gnus-face-properties-alist
887 '((pbm . (:face gnus-x-face :ascent 80))
888 (png . (:ascent 80))))
890 ;; Show Face images as pressed buttons.
891 \(setq gnus-face-properties-alist
892 '((pbm . (:face gnus-x-face :relief -2))
893 (png . (:relief -2))))
895 See the manual for the valid properties for various image types.
896 Currently, `pbm' is used for X-Face images and `png' is used for Face
897 images in Emacs. Only the `:face' property is effective on the `xface'
898 image type in XEmacs if it is built with the libcompface library."
905 article-decode-group-name article-decode-idna-rhs)
906 "*Hook run to decode charsets in articles."
911 "Function to display MIME articles."
944 "List of MIME types that should be ignored by Gnus."
950 "List of MIME types that should not be given buttons when rendered inline.
951 See also `gnus-buttonized-mime-types' which may override this variable.
952 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
958 "List of MIME types that should be given buttons when rendered inline.
959 If set, this variable overrides `gnus-unbuttonized-mime-types'.
960 To see e.g. security buttons you could set this to
962 this list to display radio buttons that allow you to choose one of two
963 media types those mails include. See also `mm-discouraged-alternatives'.
964 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
970 "If non-nil, all MIME parts get buttons.
971 When nil (the default value), then some MIME parts do not get buttons,
972 as described by the variables `gnus-buttonized-mime-types' and
973 `gnus-unbuttonized-mime-types'."
979 "String used to delimit header and body.
980 This variable is used by `gnus-article-treat-body-boundary' which can
981 be controlled by `gnus-treat-body-boundary'."
985 string))
989 "Defines the location of the faces database.
990 For information on obtaining this database of pretty pictures, please
991 see http://www.cs.indiana.edu/picons/ftp/index.html"
1000 "Say whether picons are installed on your machine."
1005 installed))
1008 "Function called with a MIME handle as the argument.
1009 This is meant for people who want to do something automatic based
1010 on parts -- for instance, adding Vcard info to a database."
1013 function))
1016 "An alist of MIME types to functions to display them."
1022 "Whether the X-Sent and Date headers can coexist.
1025 be added below it (otherwise)."
1031 "Function called with a MIME handle as the argument.
1032 This is meant for people who want to view first matched part.
1033 For `undisplayed-alternative' (default), the first undisplayed
1034 part or alternative part is used. For `undisplayed', the first
1035 undisplayed part is used. For a function, the first part which
1036 the function return t is used. For nil, the first part is
1037 used."
1060 "An alist of actions that run on the MIME attachment."
1066 "Advance to next MIME part when deleting or stripping parts.
1068 When 0, point will be placed on the same part as before. When
1069 positive (negative), move point forward (backwards) this many
1070 parts. When nil, redisplay article."
1076 integer))
1078 ;;;
1079 ;;; The treatment variables
1080 ;;;
1107 "Highlight the signature.
1108 Valid values are nil, t, `head', `first', `last', an integer or a
1109 predicate. See Info node `(gnus)Customizing Articles'."
1116 "Add buttons.
1117 Valid values are nil, t, `head', `first', `last', an integer or a
1118 predicate. See Info node `(gnus)Customizing Articles'."
1125 "Add buttons to the head.
1126 Valid values are nil, t, `head', `first', `last', an integer or a
1127 predicate. See Info node `(gnus)Customizing Articles'."
1134 "Emphasize text.
1135 Valid values are nil, t, `head', `first', `last', an integer or a
1136 predicate. See Info node `(gnus)Customizing Articles'."
1143 "Remove carriage returns.
1144 Valid values are nil, t, `head', `first', `last', an integer or a
1145 predicate. See Info node `(gnus)Customizing Articles'."
1152 "Remove newlines from within URLs.
1153 Valid values are nil, t, `head', `first', `last', an integer or a
1154 predicate. See Info node `(gnus)Customizing Articles'."
1161 "Remove leading whitespace in headers.
1162 Valid values are nil, t, `head', `first', `last', an integer or a
1163 predicate. See Info node `(gnus)Customizing Articles'."
1170 "Hide headers.
1171 Valid values are nil, t, `head', `first', `last', an integer or a
1172 predicate. See Info node `(gnus)Customizing Articles'."
1178 "Hide boring headers.
1179 Valid values are nil, t, `head', `first', `last', an integer or a
1180 predicate. See Info node `(gnus)Customizing Articles'."
1186 "Hide the signature.
1187 Valid values are nil, t, `head', `first', `last', an integer or a
1188 predicate. See Info node `(gnus)Customizing Articles'."
1194 "Fill the article.
1195 Valid values are nil, t, `head', `first', `last', an integer or a
1196 predicate. See Info node `(gnus)Customizing Articles'."
1202 "Hide cited text.
1203 Valid values are nil, t, `head', `first', `last', an integer or a
1204 predicate. See Info node `(gnus)Customizing Articles'."
1210 "Hide cited text.
1211 Valid values are nil, t, `head', `first', `last', an integer or a
1212 predicate. See Info node `(gnus)Customizing Articles'."
1218 "Strip list identifiers from `gnus-list-identifiers`.
1219 Valid values are nil, t, `head', `first', `last', an integer or a
1220 predicate. See Info node `(gnus)Customizing Articles'."
1230 "Strip PEM signatures.
1231 Valid values are nil, t, `head', `first', `last', an integer or a
1232 predicate. See Info node `(gnus)Customizing Articles'."
1238 "Strip banners from articles.
1239 The banner to be stripped is specified in the `banner' group parameter.
1240 Valid values are nil, t, `head', `first', `last', an integer or a
1241 predicate. See Info node `(gnus)Customizing Articles'."
1247 "Highlight the headers.
1248 Valid values are nil, t, `head', `first', `last', an integer or a
1249 predicate. See Info node `(gnus)Customizing Articles'."
1256 "Highlight cited text.
1257 Valid values are nil, t, `head', `first', `last', an integer or a
1258 predicate. See Info node `(gnus)Customizing Articles'."
1265 "Display the Date in UT (GMT).
1266 Valid values are nil, t, `head', `first', `last', an integer or a
1267 predicate. See Info node `(gnus)Customizing Articles'."
1273 "Display the Date in the local timezone.
1274 Valid values are nil, t, `head', `first', `last', an integer or a
1275 predicate. See Info node `(gnus)Customizing Articles'."
1281 "Display the Date in a format that can be read aloud in English.
1282 Valid values are nil, t, `head', `first', `last', an integer or a
1283 predicate. See Info node `(gnus)Customizing Articles'."
1290 "Display the Date header in a way that says how much time has elapsed.
1291 Valid values are nil, t, `head', `first', `last', an integer or a
1292 predicate. See Info node `(gnus)Customizing Articles'."
1298 "Display the date in the original timezone.
1299 Valid values are nil, t, `head', `first', `last', an integer or a
1300 predicate. See Info node `(gnus)Customizing Articles'."
1306 "Display the date in the ISO8601 format.
1307 Valid values are nil, t, `head', `first', `last', an integer or a
1308 predicate. See Info node `(gnus)Customizing Articles'."
1315 "Display the date in a user-defined format.
1316 The format is defined by the `gnus-article-time-format' variable.
1317 Valid values are nil, t, `head', `first', `last', an integer or a
1318 predicate. See Info node `(gnus)Customizing Articles'."
1324 "Strip the X-No-Archive header line from the beginning of the body.
1325 Valid values are nil, t, `head', `first', `last', an integer or a
1326 predicate. See Info node `(gnus)Customizing Articles'."
1333 "Strip trailing blank lines.
1334 Valid values are nil, t, `head', `first', `last', an integer or a
1335 predicate. See Info node `(gnus)Customizing Articles'.
1337 When set to t, it also strips trailing blanks in all MIME parts.
1338 Consider to use `last' instead."
1344 "Strip leading blank lines.
1345 Valid values are nil, t, `head', `first', `last', an integer or a
1346 predicate. See Info node `(gnus)Customizing Articles'.
1348 When set to t, it also strips trailing blanks in all MIME parts."
1354 "Strip multiple blank lines.
1355 Valid values are nil, t, `head', `first', `last', an integer or a
1356 predicate. See Info node `(gnus)Customizing Articles'."
1362 "Unfold folded header lines.
1363 Valid values are nil, t, `head', `first', `last', an integer or a
1364 predicate. See Info node `(gnus)Customizing Articles'."
1371 "If non-nil, allow unfolding headers even if the header is long.
1372 If it is a regexp, only long headers matching this regexp are unfolded.
1373 If it is t, all long headers are unfolded.
1375 This variable has no effect if `gnus-treat-unfold-headers' is nil."
1383 "Fold headers.
1384 Valid values are nil, t, `head', `first', `last', an integer or a
1385 predicate. See Info node `(gnus)Customizing Articles'."
1392 "Fold the Newsgroups and Followup-To headers.
1393 Valid values are nil, t, `head', `first', `last', an integer or a
1394 predicate. See Info node `(gnus)Customizing Articles'."
1401 "Treat overstrike highlighting.
1402 Valid values are nil, t, `head', `first', `last', an integer or a
1403 predicate. See Info node `(gnus)Customizing Articles'."
1410 "Treat ANSI SGR control sequences.
1411 Valid values are nil, t, `head', `first', `last', an integer or a
1412 predicate. See Info node `(gnus)Customizing Articles'."
1428 "Display X-Face headers.
1429 Valid values are nil and `head'.
1430 See Info node `(gnus)Customizing Articles' and Info node
1431 `(gnus)X-Face' for details."
1436 :type gnus-article-treat-head-custom
1439 symbol
1441 value)
1444 ** gnus-treat-display-xface is an obsolete variable;\
1449 ** gnus-treat-display-xface is an obsolete variable;\
1453 value)))))
1460 "Display Face headers.
1461 Valid values are nil, t, `head', `first', `last', an integer or a
1462 predicate. See Info node `(gnus)Customizing Articles' and Info
1463 node `(gnus)Face' for details."
1472 "Display smileys.
1473 Valid values are nil, t, `head', `first', `last', an integer or a
1474 predicate. See Info node `(gnus)Customizing Articles' and Info
1475 node `(gnus)Smileys' for details."
1487 "Display picons in the From header.
1488 Valid values are nil, t, `head', `first', `last', an integer or a
1489 predicate. See Info node `(gnus)Customizing Articles' and Info
1490 node `(gnus)Picons' for details."
1503 "Display picons in To and Cc headers.
1504 Valid values are nil, t, `head', `first', `last', an integer or a
1505 predicate. See Info node `(gnus)Customizing Articles' and Info
1506 node `(gnus)Picons' for details."
1519 "Display picons in the Newsgroups and Followup-To headers.
1520 Valid values are nil, t, `head', `first', `last', an integer or a
1521 predicate. See Info node `(gnus)Customizing Articles' and Info
1522 node `(gnus)Picons' for details."
1533 gnus-treat-mail-picon
1534 gnus-treat-from-picon)
1535 ;; If there's much decoration, the user might prefer a boundery.
1536 'head
1537 nil)
1538 "Draw a boundary at the end of the headers.
1539 Valid values are nil and `head'.
1540 See Info node `(gnus)Customizing Articles' for details."
1547 "Capitalize sentence-starting words.
1548 Valid values are nil, t, `head', `first', `last', an integer or a
1549 predicate. See Info node `(gnus)Customizing Articles'."
1556 "Format as HTML.
1557 Valid values are nil, t, `head', `first', `last', an integer or a
1558 predicate. See Info node `(gnus)Customizing Articles'."
1565 "Fill long lines.
1566 Valid values are nil, t, `head', `first', `last', an integer or a
1567 predicate. See Info node `(gnus)Customizing Articles'."
1573 "Play sounds.
1574 Valid values are nil, t, `head', `first', `last', an integer or a
1575 predicate. See Info node `(gnus)Customizing Articles'."
1582 "Translate articles from one language to another.
1583 Valid values are nil, t, `head', `first', `last', an integer or a
1584 predicate. See Info node `(gnus)Customizing Articles'."
1591 "Verify X-PGP-Sig.
1592 To automatically treat X-PGP-Sig, set it to head.
1593 Valid values are nil, t, `head', `first', `last', an integer or a
1594 predicate. See Info node `(gnus)Customizing Articles'."
1604 ;; Set to nil if more than one protocol added to
1605 ;; gnus-article-encrypt-protocol-alist.
1607 "The protocol used for encrypt articles.
1619 "Whether IDNA decoding of headers is used when viewing messages.
1620 This requires GNU Libidn, and by default only enabled if it is found."
1626 "If non-nil, allow scrolling the article buffer even when there no more text."
1631 ;;; Internal variables
1674 gnus-article-remove-trailing-blank-lines)
1676 gnus-article-strip-leading-blank-lines)
1678 gnus-article-strip-multiple-blank-lines)
1701 ;; This causes the citation match run O(2^n).
1702 ;; (modify-syntax-entry ?- "w" table)
1705 ;; make M-. in article buffers work for `foo' strings
1708 table)
1709 "Syntax table used in article mode buffers.
1720 ;;; Macros for dealing with the article buffer.
1743 "Go to HEADER, which is a regular expression."
1747 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
1755 "Remove hidden text properties from region between B and E."
1762 "Hide text of TYPE between B and E."
1768 "Unhide text of TYPE between B and E."
1777 "Hide text of TYPE in the current buffer."
1785 "Delete text of TYPE in the current buffer."
1789 ;; Remove MIME buttons associated with multipart/alternative parts.
1797 t))
1808 "Delete all invisible text in the current buffer."
1817 "Say whether any text of type TYPE exists in the buffer."
1821 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1829 i))
1832 "Hide unwanted headers and possibly sort them as well."
1834 ;; This function might be inhibited.
1841 ignored visible beg)
1843 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1844 ;; group parameters, so we should go to the summary buffer.
1851 gnus-ignored-headers)
1854 gnus-ignored-headers
1857 gnus-visible-headers)
1861 gnus-visible-headers
1865 ;; First we narrow to just the headers.
1867 ;; Hide any "From " lines at the beginning of (mail) articles.
1872 ;; Then treat the rest of the header lines.
1873 ;; Then we use the two regular expressions
1874 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1875 ;; select which header lines is to remain visible in the
1876 ;; article buffer.
1879 ;; Mark the rank of the header.
1891 ;; We delete the unwanted headers.
1898 "Toggle hiding of headers that aren't very interesting.
1899 If given a negative prefix, always show; if given a positive prefix,
1900 always hide."
1912 ;; Hide empty headers.
1924 ;; Hide boring Newsgroups header.
1930 gnus-newsgroup-name
1942 ;; only one address in To
1944 to-address)))
1955 ;; only one address in To
1957 to-list)))
1968 ;; only one address in CC
1970 to-list)))
1985 from reply-to
1999 ;; If date in `gnus-article-buffer' is localized
2000 ;; (`gnus-treat-date-user-defined'),
2001 ;; `days-between' might fail.
2059 "Make all header lines 40 characters long."
2062 column)
2069 gnus-article-normalized-header-length)
2073 ? )))
2082 ;; Do nothing.
2083 ))
2087 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
2088 Note that this function guesses whether a character is a sm*rtq**t* or
2089 not, so it should only be used interactively.
2091 Sm*rtq**t*s are M****s***'s unilateral extension to the
2092 iso-8859-1 character map in an attempt to provide more quoting
2094 you're expecting some kind of apostrophe or quotation mark, then
2095 try this wash."
2100 "Translate all characters in the body of the article according to FROM and TO.
2101 FROM is a string of characters to translate from; to is a string of
2102 characters to translate to."
2117 "Translate all string in the body of the article according to MAP.
2128 "Translate overstrikes into bold text."
2136 ;; We do the boldification/underlining by hiding the
2137 ;; overstrikes and putting the proper text property
2138 ;; on the letters.
2154 "Translate ANSI SGR control sequences into overlays or extents."
2162 "Unfold folded message headers.
2163 Only the headers that fit into the current window width will be
2164 unfolded."
2189 "Fold message headers."
2212 "Remove all images from the article buffer."
2219 "Unfold folded message headers.
2220 Only the headers that fit into the current window width will be
2221 unfolded."
2233 "Value of `truncate-lines' in Gnus Article buffer.
2234 Valid values are nil, t, `head', `first', `last', an integer or a
2235 predicate. See Info node `(gnus)Customizing Articles'."
2238 ;; :link '(custom-manual "(gnus)Customizing Articles")
2242 "Toggle whether to fold or truncate long lines in article the buffer.
2243 If ARG is non-nil and not a number, toggle
2244 `gnus-article-truncate-lines' too. If ARG is a number, truncate
2245 long lines if and only if arg is positive."
2261 ;; In versions of Emacs 22 (CVS) before 2006-05-26,
2262 ;; `toggle-truncate-lines' needs an argument.
2266 "Place a boundary line at the end of the headers."
2283 "Fill lines that are wider than the window width."
2303 "Capitalize the first word in each sentence."
2314 "Remove trailing CRs and then translate remaining CRs into LFs."
2326 "Remove all trailing blank lines from the article."
2345 "Display any Face headers in the header."
2349 ;; When displaying parts, this function can be called several times on
2350 ;; the same article, without any intended toggle semantic (as typing `W
2351 ;; D d' would have). So face deletion must occur only when we come from
2352 ;; an interactive command, that is when the *Article* buffer is
2353 ;; read-only.
2357 face faces)
2366 ;; Check whether this face is censored.
2371 from))))
2392 "Look for an X-Face header and display it if present."
2396 ;; Delete the old process, if any.
2399 ;; See the comment in `article-display-face'.
2401 ;; We have already displayed X-Faces, so we remove them
2402 ;; instead.
2404 ;; Display X-Faces.
2406 x-faces face)
2411 ;; If type `W f', use gnus-original-article-buffer,
2412 ;; otherwise use the current buffer because displaying
2413 ;; RFC822 parts calls this function too.
2419 ;; Check whether this face is censored.
2424 from))))
2428 ;; We display the face.
2430 ;; The command is a lisp function, so we call it.
2433 ;; The command is a string, so we interpret the command
2434 ;; as a, well, command, and fork it off.
2438 "article-x-face" nil shell-file-name
2439 shell-command-switch gnus-article-x-face-command)
2440 nil)
2441 ;; Sending multiple EOFs to xv doesn't work,
2442 ;; so we only do a single external face.
2450 gnus-article-x-face-command
2454 "Decode all MIME-encoded words in the article."
2461 gnus-newsgroup-ignored-charsets)))
2465 "Decode charset-encoded text in the article.
2466 If PROMPT (the prefix), prompt for a coding system to use."
2475 gnus-newsgroup-ignored-charsets))
2476 ct cte ctl charset format)
2499 ;; The text code could have been decoded.
2510 "Remove encoded-word encoding from headers."
2517 gnus-newsgroup-ignored-charsets))
2519 end start)
2538 "Decode group names in Newsgroups, Followup-To and Xref headers."
2542 regexp)
2544 gnus-group-name-charset-group-alist)
2556 ;; XXX how to use data in article buffer?
2560 gnus-newsgroup-name method))
2567 "Decode IDNA strings in RHS in various headers in current buffer.
2568 The following headers are decoded: From:, To:, Cc:, Reply-To:,
2569 Mail-Reply-To: and Mail-Followup-To:."
2588 "Translate a quoted-printable-encoded article.
2589 If FORCE, decode the article whether it is marked as quoted-printable
2590 or not.
2591 If READ-CHARSET, ask for a coding system."
2617 "Translate a base64 article.
2618 If FORCE, decode the article whether it is marked as base64 not.
2619 If READ-CHARSET, ask for a coding system."
2651 "Translate a HZ-encoded article."
2659 "Remove the newlines that some other mailers insert into URLs."
2672 "Format an HTML article.
2673 If READ-CHARSET, ask for a coding system. If it is a number, the
2674 charset defined in `gnus-summary-show-article-charset-alist' is used."
2678 charset)
2684 gnus-summary-show-article-charset-alist))))
2715 ;; External.
2719 "Wash the current buffer with w3."
2729 ;; External.
2733 "Wash the current buffer with emacs-w3m."
2736 w3m-force-redisplay)
2738 ;; Put the mark meaning this part was rendered by emacs-w3m.
2742 w3m-minor-mode-map)
2744 w3m-link-map)
2749 next)
2756 end))
2760 end))
2769 "Wash the current buffer with w3m."
2773 ;; The default.
2784 "List of temporary files created by `gnus-article-browse-html-parts'.
2788 "What to do with temporary files from `gnus-article-browse-html-parts'.
2789 If nil, don't delete temporary files. If it is t, delete them on
2790 exit from the summary buffer. If it is the symbol `file', query
2791 on each file, if it is `ask' ask once when exiting from the
2792 summary buffer."
2800 ;; Cf. mm-postponed-undisplay-list / mm-destroy-postponed-undisplay-list.
2803 "Delete temp-files created by `gnus-article-browse-html-parts'."
2809 "Delete all %s temporary HTML file(s)? "
2815 ;; `how' is neither `nil', `ask' nor `t' (i.e. `file'):
2819 ;; Also remove file from the list when not deleted or if file doesn't
2820 ;; exist anymore.
2822 gnus-article-browse-html-temp-list)
2826 Recurse into multiparts. The optional HEADER that should be a decoded
2828 ;; Internal function used by `gnus-article-browse-html-article'.
2830 ;; Find and show the html-parts.
2832 ;; If HTML, show it:
2847 nil)))
2853 header
2856 ;; Do we need to care for 8.3 filenames?
2858 ;; Add a meta html tag to specify charset and a header.
2876 ;; We have to examine charset one by one since
2877 ;; charset specified in parts might be different.
2881 charset)
2885 charset))
2891 hcharset)))
2894 coding hcharset)))
2905 title coding))
2912 title charset))
2916 charset))))
2922 title coding))
2965 ;; FIXME: Warn if there's an <img> tag?
2968 ;; If multipart, recurse
2983 gnus-visible-headers)))
2993 showed))
2997 The message header is added to the beginning of every html part unless
2998 the prefix argument ARG is given.
3000 Warning: Spammers use links to images in HTML articles to verify
3001 whether you have read the message. As
3002 `gnus-article-browse-html-article' passes the HTML content to the
3004 use it for mails from trusted senders.
3006 If you always want to display HTML parts in the browser, set
3007 `mm-text-html-renderer' to nil."
3008 ;; Cf. `mm-w3m-safe-url-regexp'
3013 gnus-visible-headers))
3014 ;; As we insert a <hr>, there's no need for the body boundary.
3028 parts)
3031 ;; If singlepart, enforce a list.
3035 ;; Process the list
3043 "Remove list identifies from the Subject header.
3044 The `gnus-list-identifiers' variable specifies what to do."
3049 gnus-list-identifiers))
3058 nil t)
3066 "Toggle hiding of any PEM headers and signatures in the current article.
3067 If given a negative prefix, always show; if given a positive prefix,
3068 always hide."
3074 ;; Hide the horrendously ugly "header".
3077 nil t)
3081 end
3086 ;; Hide the trailer as well
3088 nil t)
3093 "Strip the banners specified by the `banner' group parameter and by
3094 `gnus-article-address-banner-alist'."
3103 ;; Note that the From header is decoded here, so it is
3104 ;; required that the *-extract-address-components function
3105 ;; supports non-ASCII text.
3113 from))))
3121 "Strip the banner specified by the argument."
3143 "Translate article using an online translation service."
3158 "Hide the signature in the current article.
3159 If given a negative prefix, always show; if given a positive prefix,
3160 always hide."
3172 "Strip offensive headers from bodies."
3181 "Remove all blank lines from the beginning of the article."
3192 "Narrow the buffer to the head of the message.
3193 Point is left at the beginning of the narrowed-to region."
3202 "Place point at the start of the body."
3205 ;; This variable is only bound when dealing with separate
3206 ;; MIME body parts.
3208 t)
3210 t)
3213 nil)))
3216 "Replace consecutive blank lines with one empty line."
3221 ;; First make all blank lines empty.
3227 ;; Then replace multiple empty lines with a single empty line.
3235 "Remove all white space from the beginning of the lines in the article."
3245 "Remove all white space from the end of the lines in the article."
3255 "Strip leading, trailing and multiple blank lines."
3262 "Strip all blank lines."
3272 "Narrow to the signature; return t if a signature is found, else nil."
3276 ;; Check whether we have some limits to what we consider
3277 ;; to be a signature.
3280 limit limited)
3292 limits nil)))
3295 t)))))
3298 "Search the current buffer for the signature separator.
3299 Put point at the beginning of the signature separator."
3308 seps))
3309 t
3311 nil)))
3314 "Return the current prefix arg as a number, or 0 if no prefix."
3320 "Return nil if hiding is necessary.
3321 Arg can be nil or a number. nil and positive means hide, negative
3322 means show, 0 means toggle."
3329 nil)
3332 t)
3337 t)
3338 nil)))))))
3341 "Say whether the current buffer contains hidden text of type TYPE."
3349 'hidden
3350 nil)))
3353 "Show all hidden text of type TYPE.
3354 Originally it is hide instead of DUMMY."
3358 'article-type type
3361 gnus-hidden-properties)))
3374 "Move point to the start of the next header.
3375 If the current header is a continuation header, this can be several
3376 lines forward."
3385 "Convert DATE date to universal time in the current article.
3386 If TYPE is `local', convert to local time; if it is `lapsed', output
3387 how much time has lapsed since DATE. For `lapsed', the value of
3393 tdate-regexp)
3399 tdate-regexp)))
3403 pos date bface eface)
3413 t))
3429 ;; Delete any old Date headers.
3448 ;; Do highlighting.
3460 "Return a DATE line of TYPE."
3466 ;; Convert to the local timezone.
3469 ;; Convert to Universal Time.
3483 ;; Get the original date from the article.
3487 date)))
3488 ;; Let the user define the format.
3492 gnus-article-time-format)
3494 gnus-article-time-format)))
3498 ;; ISO 8601.
3502 "Date: "
3507 ;; Do an X-Sent lapsed format.
3509 ;; If the date is seriously mangled, the timezone functions are
3510 ;; liable to bug out, so we ignore all errors.
3517 num prev)
3525 "X-Sent: "
3526 ;; This is a bit convoluted, but basically we go
3527 ;; through the time units for years, weeks, etc,
3528 ;; and divide things to see whether that results
3529 ;; in positive answers.
3533 ;; The (remaining) seconds are too few to
3534 ;; be divided into this time unit.
3535 ""
3536 ;; It's big enough, so we output it.
3545 ;; If dates are odd, then it might appear like the
3546 ;; article was sent in the future.
3548 " ago"
3550 ;; Display the date in proper English
3554 "Date: the "
3563 " of "
3565 " "
3567 " at "
3569 ":"
3575 "Convert the current article date to the local timezone."
3580 "Convert the current article date to something that is proper English."
3585 "Convert the current article date to what it was originally.
3586 This is only useful if you have used some other date conversion
3587 function and want to see what the date was before converting."
3592 "Convert the current article date to time lapsed since it was sent."
3597 "Function to be run from a timer to update the lapsed time line."
3615 "Start a timer to update the X-Sent header in the article buffers.
3616 The numerical prefix says how frequently (in seconds) the function
3617 is to run."
3626 "Stop the X-Sent timer."
3633 "Convert the current article date to the user-defined format.
3634 This format is defined by the `gnus-article-time-format' variable."
3639 "Convert the current article date to ISO8601."
3644 "Save the original date as a text property and evaluate FORMS."
3653 nil t))
3659 ,@forms
3664 ;; (defun article-show-all ()
3665 ;; "Show all hidden text in the article buffer."
3666 ;; (interactive)
3667 ;; (save-excursion
3668 ;; (let ((inhibit-read-only t))
3669 ;; (gnus-article-unhide-text (point-min) (point-max)))))
3672 "Remove excessive whitespace from all headers."
3683 "Emphasize text according to `gnus-emphasis-alist'."
3690 gnus-article-emphasis-alist)
3692 gnus-emphasis-alist))
3695 gnus-hidden-properties))
3696 regexp elem beg invisible visible face)
3717 "Setup newsgroup emphasis alist."
3729 highlight)
3734 gnus-emphasis-alist)))))
3739 ;;; Saving functions.
3742 "Save the currently selected article."
3745 ;; Remove headers according to `gnus-saved-headers' or the value
3746 ;; of the `:headers' property that the saver function might have.
3749 gnus-saved-headers gnus-visible-headers))
3750 ;; Ignore group parameter. See `article-hide-headers'.
3757 ;; !!! Magic! The saving functions all save
3758 ;; `gnus-save-article-buffer' (or so they think), but we
3759 ;; bind that variable to our save-buffer.
3774 function group headers variable
3775 dir-var)
3778 result)
3783 default-name)
3785 default-name)
3798 gnus-number-of-articles-to-be-saved)
3801 ;; Let the split methods have their say.
3803 ;; No split name was found.
3809 default-name))
3810 ;; A single group name is returned.
3819 default-name))
3820 ;; A single split name was found
3824 gnus-article-save-directory))
3831 dir name)))
3832 ;; A list of splits was found.
3842 gnus-article-save-directory
3844 gnus-article-save-directory)))
3846 ;; Create the directory.
3848 ;; If we have read a directory, we append the default file name.
3851 default-name)
3853 ;; Possibly translate some characters.
3860 result))
3870 "If GROUP is an nndoc group, return the name of the parent group."
3875 "Append this article to Rmail file.
3876 Optional argument FILENAME specifies file name.
3877 Directory to save to is default to `gnus-article-save-directory'."
3879 "Save %s in rmail file" filename
3880 gnus-rmail-save-name gnus-newsgroup-name
3886 ;; Note that unlike gnus-summary-save-in-mail, there is no
3887 ;; check to see if filename is Babyl. Rmail in Emacs 23 does
3888 ;; not use Babyl.
3890 filename)
3893 "Append this article to Unix mail file.
3894 Optional argument FILENAME specifies file name.
3895 Directory to save to is default to `gnus-article-save-directory'."
3897 "Save %s in Unix mail file" filename
3898 gnus-mail-save-name gnus-newsgroup-name
3909 filename)
3914 "Append this article to file.
3915 Optional argument FILENAME specifies file name.
3916 Directory to save to is default to `gnus-article-save-directory'."
3918 "Save %s in file" filename
3919 gnus-file-save-name gnus-newsgroup-name
3929 filename)
3935 "Write this article to a file, overwriting it if the file exists.
3936 Optional argument FILENAME specifies file name.
3937 The directory to save in defaults to `gnus-article-save-directory'."
3939 "Save %s in file" filename
3940 gnus-file-save-name gnus-newsgroup-name
3946 "Append this article body to a file.
3947 Optional argument FILENAME specifies file name.
3948 The directory to save in defaults to `gnus-article-save-directory'."
3950 "Save %s body in file" filename
3951 gnus-file-save-name gnus-newsgroup-name
3963 filename)
3969 "Write this article body to a file, overwriting it if the file exists.
3970 Optional argument FILENAME specifies file name.
3971 The directory to save in defaults to `gnus-article-save-directory'."
3973 "Save %s body in file" filename
3974 gnus-file-save-name gnus-newsgroup-name
3981 "Pipe this article to subprocess COMMAND.
3982 Valid values for COMMAND include:
3983 a string
3984 The executable command name and possibly arguments.
3985 nil
3986 You will be prompted for the command in the minibuffer.
3987 the symbol `default'
3988 It will be replaced with the command which the variable
3989 `gnus-summary-pipe-output-default-command' holds or the command
3990 last used for saving.
3991 Non-nil value for RAW overrides `:decode' and `:headers' properties
3992 and the raw article including all headers will be piped."
3996 save-buffer default)
4004 gnus-article-buffer
4005 gnus-original-article-buffer)
4008 ;; Remove unwanted headers.
4015 gnus-saved-headers gnus-visible-headers))
4021 gnus-last-shell-command))
4025 default
4027 default))))
4040 "Pipe this article to muttprint."
4043 "Print using command: " gnus-summary-muttprint-program
4044 nil gnus-summary-muttprint-program)))
4046 gnus-summary-pipe-output-default-command))
4050 ;;; Article file names when saving.
4053 "Capitalize NEWSGROUP name."
4059 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4060 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
4061 Otherwise, it is like ~/News/news/group/num."
4068 gnus-article-save-directory)))
4073 default
4077 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4078 If variable `gnus-use-long-file-name' is non-nil, it is
4079 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
4083 newsgroup
4086 gnus-article-save-directory)))
4091 default
4095 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4096 If variable `gnus-use-long-file-name' is non-nil, it is
4097 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
4101 newsgroup
4104 default-directory))
4105 gnus-article-save-directory)))
4108 "Generate file name from sender."
4114 gnus-article-save-directory)))
4117 "Verify X-PGP-Sig."
4118 ;; <ftp://ftp.isc.org/pub/pgpcontrol/FORMAT>
4123 items info headers)
4125 mml2015-use
4133 ;; Don't verify multiple headers.
4183 ;; Do highlighting.
4192 "Verify Cancel-Lock header."
4216 article-verify-x-pgp-sig
4217 article-verify-cancel-lock
4218 article-hide-boring-headers
4219 article-treat-overstrike
4220 article-treat-ansi-sequences
4221 article-fill-long-lines
4222 article-capitalize-sentences
4223 article-remove-cr
4224 article-remove-leading-whitespace
4225 article-display-x-face
4226 article-display-face
4227 article-de-quoted-unreadable
4228 article-de-base64-unreadable
4229 article-decode-HZ
4230 article-wash-html
4231 article-unsplit-urls
4232 article-hide-list-identifiers
4233 article-strip-banner
4234 article-babel
4235 article-hide-pem
4236 article-hide-signature
4237 article-strip-headers-in-body
4238 article-remove-trailing-blank-lines
4239 article-strip-leading-blank-lines
4240 article-strip-multiple-blank-lines
4241 article-strip-leading-space
4242 article-strip-trailing-space
4243 article-strip-blank-lines
4244 article-strip-all-blank-lines
4245 article-date-local
4246 article-date-english
4247 article-date-iso8601
4248 article-date-original
4249 article-date-ut
4250 article-decode-mime-words
4251 article-decode-charset
4252 article-decode-encoded-words
4253 article-date-user
4254 article-date-lapsed
4255 article-emphasize
4256 article-treat-dumbquotes
4257 article-normalize-headers
4258 ;;(article-show-all . gnus-article-show-all-headers)
4259 )))
4260 \f
4261 ;;;
4262 ;;; Gnus article mode
4263 ;;;
4270 " " gnus-article-goto-next-page
4272 [delete] gnus-article-goto-prev-page
4273 [backspace] gnus-article-goto-prev-page
4274 "\C-c^" gnus-article-refer-article
4275 "h" gnus-article-show-summary
4276 "s" gnus-article-show-summary
4277 "\C-c\C-m" gnus-article-mail
4278 "?" gnus-article-describe-briefly
4279 "<" beginning-of-buffer
4280 ">" end-of-buffer
4281 "\C-c\C-i" gnus-info-find-node
4282 "\C-c\C-b" gnus-bug
4283 "R" gnus-article-reply-with-original
4284 "F" gnus-article-followup-with-original
4285 "\C-hk" gnus-article-describe-key
4286 "\C-hc" gnus-article-describe-key-briefly
4287 "\C-hb" gnus-article-describe-bindings
4289 "e" gnus-article-read-summary-keys
4290 "\C-d" gnus-article-read-summary-keys
4291 "\M-*" gnus-article-read-summary-keys
4292 "\M-#" gnus-article-read-summary-keys
4293 "\M-^" gnus-article-read-summary-keys
4294 "\M-g" gnus-article-read-summary-keys)
4296 (substitute-key-definition
4297 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
4299 (gnus-define-keys (gnus-article-send-map "S" gnus-article-mode-map)
4300 "W" gnus-article-wide-reply-with-original)
4301 (if (featurep 'xemacs)
4302 (set-keymap-default-binding gnus-article-send-map
4303 'gnus-article-read-summary-send-keys)
4304 (define-key gnus-article-send-map [t] 'gnus-article-read-summary-send-keys))
4306 (defun gnus-article-make-menu-bar ()
4307 (unless (boundp 'gnus-article-commands-menu)
4308 (gnus-summary-make-menu-bar))
4309 (gnus-turn-off-edit-menu 'article)
4310 (unless (boundp 'gnus-article-article-menu)
4311 (easy-menu-define
4312 gnus-article-article-menu gnus-article-mode-map ""
4313 '("Article"
4314 ["Scroll forwards" gnus-article-goto-next-page t]
4315 ["Scroll backwards" gnus-article-goto-prev-page t]
4316 ["Show summary" gnus-article-show-summary t]
4317 ["Fetch Message-ID at point" gnus-article-refer-article t]
4318 ["Mail to address at point" gnus-article-mail t]
4319 ["Send a bug report" gnus-bug t]))
4321 (easy-menu-define
4322 gnus-article-treatment-menu gnus-article-mode-map ""
4323 ;; Fixme: this should use :active (and maybe :visible).
4324 '("Treatment"
4325 ["Hide headers" gnus-article-hide-headers t]
4326 ["Hide signature" gnus-article-hide-signature t]
4327 ["Hide citation" gnus-article-hide-citation t]
4328 ["Treat overstrike" gnus-article-treat-overstrike t]
4329 ["Treat ANSI sequences" gnus-article-treat-ansi-sequences t]
4330 ["Remove carriage return" gnus-article-remove-cr t]
4331 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
4332 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
4333 ["Remove base64" gnus-article-de-base64-unreadable t]
4334 ["Treat html" gnus-article-wash-html t]
4335 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
4336 ["Decode HZ" gnus-article-decode-HZ t]))
4338 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
4340 ;; Note "Post" menu is defined in gnus-sum.el for consistency
4342 (gnus-run-hooks 'gnus-article-menu-hook)))
4344 (defun gnus-article-mode ()
4345 "Major mode for displaying an article.
4347 All normal editing commands are switched off.
4349 The following commands are available in addition to all summary mode
4350 commands:
4359 (interactive)
4360 (kill-all-local-variables)
4361 (gnus-simplify-mode-line)
4362 (setq mode-name "Article")
4363 (setq major-mode 'gnus-article-mode)
4364 (make-local-variable 'minor-mode-alist)
4365 (use-local-map gnus-article-mode-map)
4366 (when (gnus-visual-p 'article-menu 'menu)
4367 (gnus-article-make-menu-bar)
4368 (when gnus-summary-tool-bar-map
4369 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
4370 (gnus-update-format-specifications nil 'article-mode)
4371 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
4372 (set (make-local-variable 'gnus-page-broken) nil)
4373 (make-local-variable 'gnus-button-marker-list)
4374 (make-local-variable 'gnus-article-current-summary)
4375 (make-local-variable 'gnus-article-mime-handles)
4376 (make-local-variable 'gnus-article-decoded-p)
4377 (make-local-variable 'gnus-article-mime-handle-alist)
4378 (make-local-variable 'gnus-article-wash-types)
4379 (make-local-variable 'gnus-article-image-alist)
4380 (make-local-variable 'gnus-article-charset)
4381 (make-local-variable 'gnus-article-ignored-charsets)
4382 ;; Prevent Emacs 22 from displaying non-break space with `nobreak-space'
4383 ;; face.
4384 (set (make-local-variable 'nobreak-char-display) nil)
4385 (setq cursor-in-non-selected-windows nil)
4386 (setq truncate-lines gnus-article-truncate-lines)
4387 (gnus-set-default-directory)
4388 (buffer-disable-undo)
4389 (setq buffer-read-only t
4390 show-trailing-whitespace nil)
4391 (set-syntax-table gnus-article-mode-syntax-table)
4392 (mm-enable-multibyte)
4393 (gnus-run-mode-hooks 'gnus-article-mode-hook))
4395 (defvar gnus-button-marker-list nil
4396 "Regexp matching any of the regexps from `gnus-button-alist'.
4397 Internal variable.")
4399 (defun gnus-article-setup-buffer ()
4400 "Initialize the article buffer."
4401 (let* ((name (if gnus-single-article-buffer "*Article*"
4402 (concat "*Article " gnus-newsgroup-name "*")))
4403 (original
4405 (concat " *Original Article"
4406 (substring name (match-end 0))))))
4407 (setq gnus-article-buffer name)
4408 (setq gnus-original-article-buffer original)
4409 (setq gnus-article-mime-handle-alist nil)
4410 (with-current-buffer gnus-summary-buffer
4411 ;; This might be a variable local to the summary buffer.
4412 (unless gnus-single-article-buffer
4413 (setq gnus-article-buffer name)
4414 (setq gnus-original-article-buffer original)
4415 (gnus-set-global-variables)))
4416 (gnus-article-setup-highlight-words)
4417 ;; Init original article buffer.
4418 (with-current-buffer (gnus-get-buffer-create gnus-original-article-buffer)
4419 (mm-enable-multibyte)
4420 (setq major-mode 'gnus-original-article-mode)
4421 (make-local-variable 'gnus-original-article))
4422 (if (and (get-buffer name)
4423 (with-current-buffer name
4424 (if gnus-article-edit-mode
4425 (if (y-or-n-p "Article mode edit in progress; discard? ")
4426 (progn
4427 (set-buffer-modified-p nil)
4428 (gnus-kill-buffer name)
4429 (message "")
4430 nil)
4431 (error "Action aborted"))
4432 t)))
4433 (with-current-buffer name
4434 (set (make-local-variable 'gnus-article-edit-mode) nil)
4435 (when gnus-article-mime-handles
4436 (mm-destroy-parts gnus-article-mime-handles)
4437 (setq gnus-article-mime-handles nil))
4438 ;; Set it to nil in article-buffer!
4439 (setq gnus-article-mime-handle-alist nil)
4440 (buffer-disable-undo)
4441 (setq buffer-read-only t)
4442 ;; This list just keeps growing if we don't reset it.
4443 (setq gnus-button-marker-list nil)
4444 (unless (eq major-mode 'gnus-article-mode)
4445 (gnus-article-mode))
4446 (current-buffer))
4447 (with-current-buffer (gnus-get-buffer-create name)
4448 (gnus-article-mode)
4449 (make-local-variable 'gnus-summary-buffer)
4450 (setq gnus-summary-buffer
4451 (gnus-summary-buffer-name gnus-newsgroup-name))
4452 (gnus-summary-set-local-parameters gnus-newsgroup-name)
4453 (current-buffer)))))
4455 ;; Set article window start at LINE, where LINE is the number of lines
4456 ;; from the head of the article.
4457 (defun gnus-article-set-window-start (&optional line)
4458 (let ((article-window (gnus-get-buffer-window gnus-article-buffer t)))
4459 (when article-window
4460 (set-window-start
4461 article-window
4462 (with-current-buffer gnus-article-buffer
4463 (goto-char (point-min))
4464 (if (not line)
4465 (point-min)
4466 (gnus-message 6 "Moved to bookmark")
4468 (forward-line line)
4469 (point)))))))
4471 (defun gnus-article-prepare (article &optional all-headers header)
4472 "Prepare ARTICLE in article mode buffer.
4473 ARTICLE should either be an article number or a Message-ID.
4474 If ARTICLE is an id, HEADER should be the article headers.
4475 If ALL-HEADERS is non-nil, no headers are hidden."
4476 (save-excursion
4477 ;; Make sure we start in a summary buffer.
4478 (unless (eq major-mode 'gnus-summary-mode)
4479 (set-buffer gnus-summary-buffer))
4480 (setq gnus-summary-buffer (current-buffer))
4481 (let* ((gnus-article (if header (mail-header-number header) article))
4482 (summary-buffer (current-buffer))
4483 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
4484 (group gnus-newsgroup-name)
4485 result)
4486 (save-excursion
4487 (gnus-article-setup-buffer)
4488 (set-buffer gnus-article-buffer)
4489 ;; Deactivate active regions.
4490 (when (and (boundp 'transient-mark-mode)
4491 transient-mark-mode)
4492 (setq mark-active nil))
4493 (if (not (setq result (let ((inhibit-read-only t))
4494 (gnus-request-article-this-buffer
4495 article group))))
4496 ;; There is no such article.
4497 (save-excursion
4498 (when (and (numberp article)
4499 (not (memq article gnus-newsgroup-sparse)))
4500 (setq gnus-article-current
4501 (cons gnus-newsgroup-name article))
4502 (set-buffer gnus-summary-buffer)
4503 (setq gnus-current-article article)
4504 (if (and (memq article gnus-newsgroup-undownloaded)
4505 (not (gnus-online (gnus-find-method-for-group
4506 gnus-newsgroup-name))))
4507 (progn
4508 (gnus-summary-set-agent-mark article)
4509 (message "Message marked for downloading"))
4510 (gnus-summary-mark-article article gnus-canceled-mark)
4511 (unless (memq article gnus-newsgroup-sparse)
4512 (gnus-error 1 "No such article (may have expired or been canceled)")))))
4513 (if (or (eq result 'pseudo)
4514 (eq result 'nneething))
4515 (progn
4516 (with-current-buffer summary-buffer
4517 (push article gnus-newsgroup-history)
4518 (setq gnus-last-article gnus-current-article
4519 gnus-current-article 0
4520 gnus-current-headers nil
4521 gnus-article-current nil)
4522 (if (eq result 'nneething)
4523 (gnus-configure-windows 'summary)
4524 (gnus-configure-windows 'article))
4525 (gnus-set-global-variables))
4526 (let ((gnus-article-mime-handle-alist-1
4527 gnus-article-mime-handle-alist))
4528 (gnus-set-mode-line 'article)))
4529 ;; The result from the `request' was an actual article -
4530 ;; or at least some text that is now displayed in the
4531 ;; article buffer.
4532 (when (and (numberp article)
4533 (not (eq article gnus-current-article)))
4534 ;; Seems like a new article has been selected.
4535 ;; `gnus-current-article' must be an article number.
4536 (with-current-buffer summary-buffer
4537 (push article gnus-newsgroup-history)
4538 (setq gnus-last-article gnus-current-article
4539 gnus-current-article article
4540 gnus-current-headers
4541 (gnus-summary-article-header gnus-current-article)
4542 gnus-article-current
4543 (cons gnus-newsgroup-name gnus-current-article))
4544 (unless (vectorp gnus-current-headers)
4545 (setq gnus-current-headers nil))
4546 (gnus-summary-goto-subject gnus-current-article)
4547 (when (gnus-summary-show-thread)
4548 ;; If the summary buffer really was folded, the
4549 ;; previous goto may not actually have gone to
4550 ;; the right article, but the thread root instead.
4551 ;; So we go again.
4552 (gnus-summary-goto-subject gnus-current-article))
4553 (gnus-run-hooks 'gnus-mark-article-hook)
4554 (gnus-set-mode-line 'summary)
4555 (when (gnus-visual-p 'article-highlight 'highlight)
4556 (gnus-run-hooks 'gnus-visual-mark-article-hook))
4557 ;; Set the global newsgroup variables here.
4558 (gnus-set-global-variables)
4559 (setq gnus-have-all-headers
4560 (or all-headers gnus-show-all-headers))))
4561 (save-excursion
4562 (gnus-configure-windows 'article))
4563 (when (or (numberp article)
4564 (stringp article))
4565 (gnus-article-prepare-display)
4566 ;; Do page break.
4567 (goto-char (point-min))
4568 (when gnus-break-pages
4569 (gnus-narrow-to-page)))
4570 (let ((gnus-article-mime-handle-alist-1
4571 gnus-article-mime-handle-alist))
4572 (gnus-set-mode-line 'article))
4573 (article-goto-body)
4574 (unless (bobp)
4575 (forward-line -1))
4576 (set-window-point (get-buffer-window (current-buffer)) (point))
4577 (gnus-configure-windows 'article)
4578 t))))))
4580 ;;;###autoload
4581 (defun gnus-article-prepare-display ()
4582 "Make the current buffer look like a nice article."
4583 ;; Hooks for getting information from the article.
4584 ;; This hook must be called before being narrowed.
4585 (let ((gnus-article-buffer (current-buffer))
4586 buffer-read-only
4587 (inhibit-read-only t))
4588 (unless (eq major-mode 'gnus-article-mode)
4589 (gnus-article-mode))
4590 (setq buffer-read-only nil
4591 gnus-article-wash-types nil
4592 gnus-article-image-alist nil)
4593 (gnus-run-hooks 'gnus-tmp-internal-hook)
4594 (when gnus-display-mime-function
4595 (funcall gnus-display-mime-function))
4596 (gnus-run-hooks 'gnus-article-prepare-hook)))
4598 ;;;
4599 ;;; Gnus Sticky Article Mode
4600 ;;;
4602 (define-derived-mode gnus-sticky-article-mode gnus-article-mode "StickyArticle"
4603 "Mode for sticky articles."
4604 ;; Release bindings that won't work.
4605 (substitute-key-definition 'gnus-article-read-summary-keys 'undefined
4606 gnus-sticky-article-mode-map)
4607 (substitute-key-definition 'gnus-article-refer-article 'undefined
4608 gnus-sticky-article-mode-map)
4609 (dolist (k '("e" "h" "s" "F" "R"))
4610 (define-key gnus-sticky-article-mode-map k nil))
4611 (define-key gnus-sticky-article-mode-map "k" 'gnus-kill-sticky-article-buffer)
4612 (define-key gnus-sticky-article-mode-map "q" 'bury-buffer)
4613 (define-key gnus-sticky-article-mode-map "\C-hc" 'describe-key-briefly)
4614 (define-key gnus-sticky-article-mode-map "\C-hk" 'describe-key))
4616 (defun gnus-sticky-article (arg)
4617 "Make the current article sticky.
4618 If a prefix ARG is given, ask for a name for this sticky article buffer."
4619 (interactive "P")
4620 (gnus-summary-show-thread)
4621 (gnus-summary-select-article nil nil 'pseudo)
4622 (let (new-art-buf-name)
4623 (gnus-eval-in-buffer-window gnus-article-buffer
4624 (setq new-art-buf-name
4625 (concat
4626 "*Sticky Article: "
4627 (if arg
4628 (read-from-minibuffer "Sticky article buffer name: ")
4629 (gnus-with-article-headers
4630 (gnus-article-goto-header "subject")
4631 (setq new-art-buf-name
4632 (buffer-substring-no-properties
4633 (line-beginning-position) (line-end-position)))
4634 (goto-char (point-min))
4635 (gnus-article-goto-header "from")
4636 (setq new-art-buf-name
4637 (concat
4638 new-art-buf-name ", "
4639 (buffer-substring-no-properties
4640 (line-beginning-position) (line-end-position))))
4641 (goto-char (point-min))
4642 (gnus-article-goto-header "date")
4643 (setq new-art-buf-name
4644 (concat
4645 new-art-buf-name ", "
4646 (buffer-substring-no-properties
4647 (line-beginning-position) (line-end-position))))))
4648 "*"))
4649 (if (and (gnus-buffer-live-p new-art-buf-name)
4650 (with-current-buffer new-art-buf-name
4651 (eq major-mode 'gnus-sticky-article-mode)))
4652 (switch-to-buffer new-art-buf-name)
4653 (setq new-art-buf-name (rename-buffer new-art-buf-name t)))
4654 (gnus-sticky-article-mode))
4655 (setq gnus-article-buffer new-art-buf-name))
4656 (gnus-summary-recenter)
4657 (gnus-summary-position-point))
4659 (defun gnus-kill-sticky-article-buffer (&optional buffer)
4660 "Kill the given sticky article BUFFER.
4661 If none is given, assume the current buffer and kill it if it has
4662 `gnus-sticky-article-mode'."
4663 (interactive)
4664 (unless buffer
4665 (setq buffer (current-buffer)))
4666 (with-current-buffer buffer
4667 (when (eq major-mode 'gnus-sticky-article-mode)
4668 (gnus-kill-buffer buffer))))
4670 (defun gnus-kill-sticky-article-buffers (arg)
4671 "Kill all sticky article buffers.
4672 If a prefix ARG is given, ask for confirmation."
4673 (interactive "P")
4674 (dolist (buf (gnus-buffers))
4675 (with-current-buffer buf
4676 (when (eq major-mode 'gnus-sticky-article-mode)
4677 (if (not arg)
4678 (gnus-kill-buffer buf)
4679 (when (yes-or-no-p (concat "Kill buffer " (buffer-name buf) "? "))
4680 (gnus-kill-buffer buf)))))))
4682 ;;;
4683 ;;; Gnus MIME viewing functions
4684 ;;;
4687 "Format of the MIME buttons.
4689 Valid specifiers include:
4690 %t The MIME type
4691 %T MIME type, along with additional info
4692 %n The `name' parameter
4693 %d The description, if any
4694 %l The length of the encoded part
4695 %p The part identifier number
4696 %e Dots if the part isn't displayed
4698 General format specifiers can also be used. See Info node
4699 `(gnus)Formatting Variables'.")
4701 (defvar gnus-mime-button-line-format-alist
4702 '((?t gnus-tmp-type ?s)
4703 (?T gnus-tmp-type-long ?s)
4704 (?n gnus-tmp-name ?s)
4705 (?d gnus-tmp-description ?s)
4706 (?p gnus-tmp-id ?s)
4707 (?l gnus-tmp-length ?d)
4708 (?e gnus-tmp-dots ?s)))
4710 (defvar gnus-mime-button-commands
4712 (gnus-mime-view-part "v" "View Interactively...")
4713 (gnus-mime-view-part-as-type "t" "View As Type...")
4714 (gnus-mime-view-part-as-charset "C" "View As charset...")
4715 (gnus-mime-save-part "o" "Save...")
4716 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
4717 (gnus-mime-replace-part "r" "Replace part")
4718 (gnus-mime-delete-part "d" "Delete part")
4719 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
4720 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
4721 (gnus-mime-view-part-internally "E" "View Internally") ;; Why `E'?
4722 (gnus-mime-view-part-externally "e" "View Externally")
4723 (gnus-mime-print-part "p" "Print")
4724 (gnus-mime-pipe-part "|" "Pipe To Command...")
4725 (gnus-mime-action-on-part "." "Take action on the part...")))
4727 (defun gnus-article-mime-part-status ()
4728 (if gnus-article-mime-handle-alist-1
4729 (if (eq 1 (length gnus-article-mime-handle-alist-1))
4730 " (1 part)"
4731 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
4732 ""))
4734 (defvar gnus-mime-button-map
4735 (let ((map (make-sparse-keymap)))
4736 (define-key map gnus-mouse-2 'gnus-article-push-button)
4737 (define-key map gnus-down-mouse-3 'gnus-mime-button-menu)
4738 (dolist (c gnus-mime-button-commands)
4739 (define-key map (cadr c) (car c)))
4740 map))
4742 (easy-menu-define
4743 gnus-mime-button-menu gnus-mime-button-map "MIME button menu."
4744 `("MIME Part"
4745 ,@(mapcar (lambda (c)
4746 (vector (caddr c) (car c) :active t))
4747 gnus-mime-button-commands)))
4749 (defmacro gnus-bind-safe-url-regexp (&rest body)
4750 "Bind `mm-w3m-safe-url-regexp' according to `gnus-safe-html-newsgroups'."
4751 `(let ((mm-w3m-safe-url-regexp
4752 (let ((group (if (and (eq major-mode 'gnus-article-mode)
4753 (gnus-buffer-live-p
4754 gnus-article-current-summary))
4755 (with-current-buffer gnus-article-current-summary
4756 gnus-newsgroup-name)
4757 gnus-newsgroup-name)))
4758 (if (cond ((stringp gnus-safe-html-newsgroups)
4759 (string-match gnus-safe-html-newsgroups group))
4760 ((consp gnus-safe-html-newsgroups)
4761 (member group gnus-safe-html-newsgroups)))
4762 nil
4763 mm-w3m-safe-url-regexp))))
4764 ,@body))
4766 (defun gnus-mime-button-menu (event prefix)
4767 "Construct a context-sensitive menu of MIME commands."
4769 (save-window-excursion
4770 (let ((pos (event-start event)))
4771 (select-window (posn-window pos))
4772 (goto-char (posn-point pos))
4773 (gnus-article-check-buffer)
4774 (popup-menu gnus-mime-button-menu nil prefix))))
4776 (defun gnus-mime-view-all-parts (&optional handles)
4777 "View all the MIME parts."
4778 (interactive)
4779 (with-current-buffer gnus-article-buffer
4780 (let ((handles (or handles gnus-article-mime-handles))
4781 (mail-parse-charset gnus-newsgroup-charset)
4782 (mail-parse-ignored-charsets
4783 (with-current-buffer gnus-summary-buffer
4784 gnus-newsgroup-ignored-charsets)))
4785 (when handles
4786 (mm-remove-parts handles)
4787 (goto-char (point-min))
4789 (let ((inhibit-read-only t))
4790 (delete-region (point) (point-max))
4791 (gnus-bind-safe-url-regexp (mm-display-parts handles)))))))
4793 (defun gnus-article-jump-to-part (n)
4794 "Jump to MIME part N."
4795 (interactive "P")
4796 (pop-to-buffer gnus-article-buffer)
4797 ;; FIXME: why is it necessary?
4798 (sit-for 0)
4799 (let ((parts (length gnus-article-mime-handle-alist)))
4800 (or n (setq n
4801 (string-to-number
4802 (read-string ;; Emacs 21 doesn't have `read-number'.
4803 (format "Jump to part (2..%s): " parts)))))
4804 (unless (and (integerp n) (<= n parts) (>= n 1))
4805 (setq n
4806 (progn
4807 (gnus-message 7 "Invalid part `%s', using %s instead."
4808 n parts)
4809 parts)))
4810 (gnus-message 9 "Jumping to part %s." n)
4811 (cond ((>= gnus-auto-select-part 1)
4812 (while (and (<= n parts)
4813 (not (gnus-article-goto-part n)))
4814 (setq n (1+ n))))
4815 ((< gnus-auto-select-part 0)
4816 (while (and (>= n 1)
4817 (not (gnus-article-goto-part n)))
4818 (setq n (1- n))))
4819 (t
4820 (gnus-article-goto-part n)))))
4822 (eval-when-compile
4823 (defsubst gnus-article-edit-part (handles &optional current-id)
4824 "Edit an article in order to delete a mime part.
4825 This function is exclusively used by `gnus-mime-save-part-and-strip'
4826 and `gnus-mime-delete-part', and not provided at run-time normally."
4827 (gnus-article-edit-article
4828 `(lambda ()
4829 (buffer-disable-undo)
4830 (erase-buffer)
4831 (let ((mail-parse-charset (or gnus-article-charset
4832 ',gnus-newsgroup-charset))
4833 (mail-parse-ignored-charsets
4834 (or gnus-article-ignored-charsets
4835 ',gnus-newsgroup-ignored-charsets))
4836 (mbl mml-buffer-list))
4837 (setq mml-buffer-list nil)
4838 (insert-buffer-substring gnus-original-article-buffer)
4839 (mime-to-mml ',handles)
4840 (setq gnus-article-mime-handles nil)
4841 (let ((mbl1 mml-buffer-list))
4842 (setq mml-buffer-list mbl)
4843 (set (make-local-variable 'mml-buffer-list) mbl1))
4844 (gnus-make-local-hook 'kill-buffer-hook)
4845 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
4846 `(lambda (no-highlight)
4847 (let ((mail-parse-charset (or gnus-article-charset
4848 ',gnus-newsgroup-charset))
4849 (message-options message-options)
4850 (message-options-set-recipient)
4851 (mail-parse-ignored-charsets
4852 (or gnus-article-ignored-charsets
4853 ',gnus-newsgroup-ignored-charsets)))
4854 (mml-to-mime)
4855 (mml-destroy-buffers)
4856 (remove-hook 'kill-buffer-hook
4857 'mml-destroy-buffers t)
4858 (kill-local-variable 'mml-buffer-list))
4859 (gnus-summary-edit-article-done
4860 ,(or (mail-header-references gnus-current-headers) "")
4861 ,(gnus-group-read-only-p)
4862 ,gnus-summary-buffer no-highlight))
4863 t)
4864 (gnus-article-edit-done)
4865 (gnus-configure-windows 'article)
4866 (when (and current-id (integerp gnus-auto-select-part))
4867 (gnus-article-jump-to-part (+ current-id gnus-auto-select-part)))))
4869 (defun gnus-mime-replace-part (file)
4870 "Replace MIME part under point with an external body."
4871 ;; Useful if file has already been saved to disk
4872 (interactive
4873 (list
4874 (read-file-name "Replace MIME part with file: "
4875 (or mm-default-directory default-directory)
4876 nil nil)))
4877 (gnus-mime-save-part-and-strip file))
4879 (defun gnus-mime-save-part-and-strip (&optional file)
4880 "Save the MIME part under point then replace it with an external body.
4881 If FILE is given, use it for the external part."
4882 (interactive)
4883 (gnus-article-check-buffer)
4884 (when (gnus-group-read-only-p)
4885 (error "The current group does not support deleting of parts"))
4886 (when (mm-complicated-handles gnus-article-mime-handles)
4887 (error "\
4888 The current article has a complicated MIME structure, giving up..."))
4889 (let* ((data (get-text-property (point) 'gnus-data))
4890 (id (get-text-property (point) 'gnus-part))
4891 param
4892 (handles gnus-article-mime-handles))
4893 (unless file
4894 (setq file
4895 (and data (mm-save-part data "Delete MIME part and save to: "))))
4896 (when file
4897 (with-current-buffer (mm-handle-buffer data)
4898 (erase-buffer)
4899 (insert "Content-Type: " (mm-handle-media-type data))
4900 (mml-insert-parameter-string (cdr (mm-handle-type data))
4901 '(charset))
4902 ;; Add a filename for the sake of saving the part again.
4903 (mml-insert-parameter
4904 (mail-header-encode-parameter "name" (file-name-nondirectory file)))
4909 (setcdr data
4910 (cdr (mm-make-handle nil
4911 `("message/external-body"
4912 (access-type . "LOCAL-FILE")
4913 (name . ,file)))))
4914 ;; (set-buffer gnus-summary-buffer)
4915 (gnus-article-edit-part handles id))))
4917 ;; A function like `gnus-summary-save-parts' (`X m', `<MIME> <Extract all
4918 ;; parts...>') but with stripping would be nice.
4920 (defun gnus-mime-delete-part ()
4921 "Delete the MIME part under point.
4922 Replace it with some information about the removed part."
4923 (interactive)
4924 (gnus-article-check-buffer)
4925 (when (gnus-group-read-only-p)
4926 (error "The current group does not support deleting of parts"))
4927 (when (mm-complicated-handles gnus-article-mime-handles)
4928 (error "\
4929 The current article has a complicated MIME structure, giving up..."))
4930 (when (or gnus-expert-user
4931 (gnus-yes-or-no-p "\
4932 Deleting parts may malfunction or destroy the article; continue? "))
4933 (let* ((data (get-text-property (point) 'gnus-data))
4934 (id (get-text-property (point) 'gnus-part))
4935 (handles gnus-article-mime-handles)
4936 (none "(none)")
4937 (description
4938 (let ((desc (mm-handle-description data)))
4939 (when desc
4940 (mail-decode-encoded-word-string desc))))
4941 (filename
4942 (or (mail-content-type-get (mm-handle-disposition data) 'filename)
4943 none))
4944 (type (mm-handle-media-type data)))
4945 (unless data
4946 (error "No MIME part under point"))
4947 (with-current-buffer (mm-handle-buffer data)
4948 (let ((bsize (format "%s" (buffer-size))))
4949 (erase-buffer)
4950 (insert
4951 (concat
4958 (when description
4961 (setcdr data
4962 (cdr (mm-make-handle
4963 nil `("text/plain" (charset . gnus-decoded)) nil nil
4964 (list "attachment")
4965 (format "Deleted attachment (%s bytes)" bsize))))))
4966 ;; (set-buffer gnus-summary-buffer)
4967 (gnus-article-edit-part handles id))))
4969 (defun gnus-mime-save-part ()
4970 "Save the MIME part under point."
4971 (interactive)
4972 (gnus-article-check-buffer)
4973 (let ((data (get-text-property (point) 'gnus-data)))
4974 (when data
4975 (mm-save-part data))))
4977 (defun gnus-mime-pipe-part ()
4978 "Pipe the MIME part under point to a process."
4979 (interactive)
4980 (gnus-article-check-buffer)
4981 (let ((data (get-text-property (point) 'gnus-data)))
4982 (when data
4983 (mm-pipe-part data))))
4985 (defun gnus-mime-view-part ()
4986 "Interactively choose a viewing method for the MIME part under point."
4987 (interactive)
4988 (gnus-article-check-buffer)
4989 (let ((data (get-text-property (point) 'gnus-data)))
4990 (when data
4991 (setq gnus-article-mime-handles
4992 (mm-merge-handles
4993 gnus-article-mime-handles (setq data (copy-sequence data))))
4994 (mm-interactively-view-part data))))
4996 (defun gnus-mime-view-part-as-type-internal ()
4997 (gnus-article-check-buffer)
4998 (let* ((handle (get-text-property (point) 'gnus-data))
4999 (name (or
5000 ;; Content-Type: foo/bar; name=...
5001 (mail-content-type-get (mm-handle-type handle) 'name)
5002 ;; Content-Disposition: attachment; filename=...
5003 (cdr (assq 'filename (cdr (mm-handle-disposition handle))))))
5004 (def-type (and name (mm-default-file-encoding name))))
5005 (or (and def-type (cons def-type 0))
5006 (and handle
5007 (equal (mm-handle-media-supertype handle) "text")
5008 '("text/plain" . 0))
5009 '("application/octet-stream" . 0))))
5011 (defun gnus-mime-view-part-as-type (&optional mime-type pred)
5012 "Choose a MIME media type, and view the part as such.
5013 If non-nil, PRED is a predicate to use during completion to limit the
5014 available media-types."
5015 (interactive)
5016 (unless mime-type
5017 (setq mime-type
5018 (let ((default (gnus-mime-view-part-as-type-internal)))
5019 (completing-read
5020 (format "View as MIME type (default %s): "
5021 (car default))
5022 (mapcar #'list (mailcap-mime-types))
5023 pred nil nil nil
5024 (car default)))))
5025 (gnus-article-check-buffer)
5026 (let ((handle (get-text-property (point) 'gnus-data)))
5027 (when handle
5028 (when (equal (mm-handle-media-type handle) "message/external-body")
5029 (unless (mm-handle-cache handle)
5030 (mm-extern-cache-contents handle))
5031 (setq handle (mm-handle-cache handle)))
5032 (setq handle
5033 (mm-make-handle (mm-handle-buffer handle)
5034 (cons mime-type (cdr (mm-handle-type handle)))
5035 (mm-handle-encoding handle)
5036 (mm-handle-undisplayer handle)
5037 (mm-handle-disposition handle)
5038 (mm-handle-description handle)
5039 nil
5040 (mm-handle-id handle)))
5041 (setq gnus-article-mime-handles
5042 (mm-merge-handles gnus-article-mime-handles handle))
5043 (when (mm-handle-displayed-p handle)
5044 (mm-remove-part handle))
5045 (gnus-mm-display-part handle))))
5047 (defun gnus-mime-copy-part (&optional handle arg)
5048 "Put the MIME part under point into a new buffer.
5049 If `auto-compression-mode' is enabled, compressed files like .gz and .bz2
5050 are decompressed."
5051 (interactive (list nil current-prefix-arg))
5052 (gnus-article-check-buffer)
5053 (unless handle
5054 (setq handle (get-text-property (point) 'gnus-data)))
5055 (when handle
5056 (let ((filename (or (mail-content-type-get (mm-handle-type handle)
5057 'name)
5058 (mail-content-type-get (mm-handle-disposition handle)
5059 'filename)))
5060 contents dont-decode charset coding-system)
5061 (mm-with-unibyte-buffer
5062 (mm-insert-part handle)
5063 (setq contents (or (condition-case nil
5064 (mm-decompress-buffer filename nil 'sig)
5065 (error
5066 (setq dont-decode t)
5067 nil))
5068 (buffer-string))))
5069 (setq filename (cond (filename (file-name-nondirectory filename))
5070 (dont-decode "*raw data*")
5071 (t "*decoded*")))
5072 (cond
5073 (dont-decode)
5074 ((not arg)
5075 (unless (setq charset (mail-content-type-get
5076 (mm-handle-type handle) 'charset))
5077 (unless (setq coding-system (mm-with-unibyte-buffer
5078 (insert contents)
5079 (mm-find-buffer-file-coding-system)))
5080 (setq charset gnus-newsgroup-charset))))
5081 ((numberp arg)
5082 (setq charset (or (cdr (assq arg
5083 gnus-summary-show-article-charset-alist))
5084 (mm-read-coding-system "Charset: ")))))
5085 (switch-to-buffer (generate-new-buffer filename))
5086 (if (or coding-system
5087 (and charset
5088 (setq coding-system (mm-charset-to-coding-system charset))
5089 (not (eq charset 'ascii))))
5090 (progn
5091 (mm-enable-multibyte)
5092 (insert (mm-decode-coding-string contents coding-system))
5093 (setq buffer-file-coding-system
5094 (if (boundp 'last-coding-system-used)
5095 (symbol-value 'last-coding-system-used)
5096 coding-system)))
5097 (mm-disable-multibyte)
5098 (insert contents)
5099 (setq buffer-file-coding-system mm-binary-coding-system))
5100 ;; We do it this way to make `normal-mode' set the appropriate mode.
5101 (unwind-protect
5102 (progn
5103 (setq buffer-file-name (expand-file-name filename))
5104 (normal-mode))
5105 (setq buffer-file-name nil))
5106 (goto-char (point-min)))))
5108 (defun gnus-mime-print-part (&optional handle filename)
5109 "Print the MIME part under point."
5110 (interactive (list nil (ps-print-preprint current-prefix-arg)))
5111 (gnus-article-check-buffer)
5112 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5113 (contents (and handle (mm-get-part handle)))
5114 (file (mm-make-temp-file (expand-file-name "mm." mm-tmp-directory)))
5115 (printer (mailcap-mime-info (mm-handle-media-type handle) "print")))
5116 (when contents
5117 (if printer
5118 (unwind-protect
5119 (progn
5120 (mm-save-part-to-file handle file)
5121 (call-process shell-file-name nil
5122 (generate-new-buffer " *mm*")
5123 nil
5124 shell-command-switch
5125 (mm-mailcap-command
5126 printer file (mm-handle-type handle))))
5127 (delete-file file))
5128 (with-temp-buffer
5129 (insert contents)
5130 (gnus-print-buffer))
5131 (ps-despool filename)))))
5133 (defun gnus-mime-inline-part (&optional handle arg)
5134 "Insert the MIME part under point into the current buffer.
5135 Compressed files like .gz and .bz2 are decompressed."
5136 (interactive (list nil current-prefix-arg))
5137 (gnus-article-check-buffer)
5138 (unless handle
5139 (setq handle (get-text-property (point) 'gnus-data)))
5140 (when handle
5141 (let ((b (point))
5142 (inhibit-read-only t)
5143 contents charset coding-system)
5144 (if (and (not arg) (mm-handle-undisplayer handle))
5145 (mm-remove-part handle)
5146 (mm-with-unibyte-buffer
5147 (mm-insert-part handle)
5148 (setq contents
5149 (or (mm-decompress-buffer
5150 (or (mail-content-type-get (mm-handle-type handle)
5151 'name)
5152 (mail-content-type-get (mm-handle-disposition handle)
5153 'filename))
5154 nil t)
5155 (buffer-string))))
5156 (cond
5157 ((not arg)
5158 (unless (setq charset (mail-content-type-get
5159 (mm-handle-type handle) 'charset))
5160 (unless (setq coding-system
5161 (mm-with-unibyte-buffer
5162 (insert contents)
5163 (mm-find-buffer-file-coding-system)))
5164 (setq charset gnus-newsgroup-charset))))
5165 ((numberp arg)
5166 (if (mm-handle-undisplayer handle)
5167 (mm-remove-part handle))
5168 (setq charset
5169 (or (cdr (assq arg
5170 gnus-summary-show-article-charset-alist))
5171 (mm-read-coding-system "Charset: "))))
5172 (t
5173 (if (mm-handle-undisplayer handle)
5174 (mm-remove-part handle))))
5175 (forward-line 2)
5176 (mm-insert-inline
5177 handle
5178 (if (or coding-system
5179 (and charset
5180 (setq coding-system
5181 (mm-charset-to-coding-system charset))
5182 (not (eq coding-system 'ascii))))
5183 (mm-decode-coding-string contents coding-system)
5184 (mm-string-to-multibyte contents)))
5185 (goto-char b)))))
5187 (defun gnus-mime-set-charset-parameters (handle charset)
5188 "Set CHARSET to parameters in HANDLE.
5189 CHARSET may either be a string or a symbol."
5190 (unless (stringp charset)
5191 (setq charset (symbol-name charset)))
5192 (if (stringp (car handle))
5193 (dolist (h (cdr handle))
5194 (gnus-mime-set-charset-parameters h charset))
5195 (let* ((type (mm-handle-type (if (equal (mm-handle-media-type handle)
5196 "message/external-body")
5197 (progn
5198 (unless (mm-handle-cache handle)
5199 (mm-extern-cache-contents handle))
5200 (mm-handle-cache handle))
5201 handle)))
5202 (param (assq 'charset (cdr type))))
5203 (if param
5204 (setcdr param charset)
5205 (setcdr type (cons (cons 'charset charset) (cdr type)))))))
5207 (defun gnus-mime-view-part-as-charset (&optional handle arg)
5208 "Insert the MIME part under point into the current buffer using the
5209 specified charset."
5210 (interactive (list nil current-prefix-arg))
5211 (gnus-article-check-buffer)
5212 (let ((handle (or handle (get-text-property (point) 'gnus-data)))
5213 (fun (get-text-property (point) 'gnus-callback))
5214 (gnus-newsgroup-ignored-charsets 'gnus-all)
5215 charset form preferred parts)
5216 (when handle
5217 (when (prog1
5218 (and fun
5219 (setq charset
5220 (or (cdr (assq
5221 arg
5222 gnus-summary-show-article-charset-alist))
5223 (mm-read-coding-system "Charset: "))))
5224 (if (mm-handle-undisplayer handle)
5225 (mm-remove-part handle)))
5226 (gnus-mime-set-charset-parameters handle charset)
5227 (when (and (consp (setq form (cdr-safe fun)))
5228 (setq form (ignore-errors
5229 (assq 'gnus-mime-display-alternative form)))
5230 (setq preferred (caddr form))
5231 (progn
5232 (when (eq (car preferred) 'quote)
5233 (setq preferred (cadr preferred)))
5234 (not (equal preferred
5235 (get-text-property (point) 'gnus-data))))
5236 (setq parts (get-text-property (point) 'gnus-part))
5237 (setq parts (cdr (assq parts
5238 gnus-article-mime-handle-alist)))
5239 (equal (mm-handle-media-type parts) "multipart/alternative")
5240 (setq parts (reverse (cdr parts))))
5241 (setcar (cddr form)
5242 (list 'quote (or (cadr (member preferred parts))
5243 (car parts)))))
5244 (funcall fun handle)))))
5246 (defun gnus-mime-view-part-externally (&optional handle)
5247 "View the MIME part under point with an external viewer."
5248 (interactive)
5249 (gnus-article-check-buffer)
5250 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5251 (mm-user-display-methods nil)
5252 (mm-inlined-types nil)
5253 (mail-parse-charset gnus-newsgroup-charset)
5254 (mail-parse-ignored-charsets
5255 (with-current-buffer gnus-summary-buffer
5256 gnus-newsgroup-ignored-charsets))
5257 (type (mm-handle-media-type handle))
5258 (method (mailcap-mime-info type))
5259 (mm-enable-external t))
5260 (if (not (stringp method))
5261 (gnus-mime-view-part-as-type
5262 nil (lambda (types) (stringp (mailcap-mime-info (car types)))))
5263 (when handle
5264 (if (mm-handle-undisplayer handle)
5265 (mm-remove-part handle)
5266 (mm-display-part handle))))))
5268 (defun gnus-mime-view-part-internally (&optional handle)
5269 "View the MIME part under point with an internal viewer.
5270 If no internal viewer is available, use an external viewer."
5271 (interactive)
5272 (gnus-article-check-buffer)
5273 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5274 (mm-inlined-types '(".*"))
5275 (mm-inline-large-images t)
5276 (mail-parse-charset gnus-newsgroup-charset)
5277 (mail-parse-ignored-charsets
5278 (with-current-buffer gnus-summary-buffer
5279 gnus-newsgroup-ignored-charsets))
5280 (inhibit-read-only t))
5281 (if (not (mm-inlinable-p handle))
5282 (gnus-mime-view-part-as-type
5283 nil (lambda (types) (mm-inlinable-p handle (car types))))
5284 (when handle
5285 (if (mm-handle-undisplayer handle)
5286 (mm-remove-part handle)
5287 (gnus-bind-safe-url-regexp (mm-display-part handle)))))))
5289 (defun gnus-mime-action-on-part (&optional action)
5290 "Do something with the MIME attachment at \(point\)."
5291 (interactive
5292 (list (completing-read "Action: " gnus-mime-action-alist nil t)))
5293 (gnus-article-check-buffer)
5294 (let ((action-pair (assoc action gnus-mime-action-alist)))
5295 (if action-pair
5296 (funcall (cdr action-pair)))))
5298 (defun gnus-article-part-wrapper (n function &optional no-handle interactive)
5299 "Call FUNCTION on MIME part N.
5300 Unless NO-HANDLE, call FUNCTION with N-th MIME handle as it's only argument.
5301 If INTERACTIVE, call FUNCTION interactivly."
5302 (let (window frame)
5303 ;; Check whether the article is displayed.
5304 (unless (and (gnus-buffer-live-p gnus-article-buffer)
5305 (setq window (get-buffer-window gnus-article-buffer t))
5306 (frame-visible-p (setq frame (window-frame window))))
5307 (error "No article is displayed"))
5308 (with-current-buffer gnus-article-buffer
5309 ;; Check whether the article displays the right contents.
5310 (unless (with-current-buffer gnus-summary-buffer
5311 (eq gnus-current-article (gnus-summary-article-number)))
5312 (error "You should select the right article first"))
5313 (if n
5314 (setq n (prefix-numeric-value n))
5315 (let ((pt (point)))
5316 (setq n (or (get-text-property pt 'gnus-part)
5317 (and (not (bobp))
5318 (get-text-property (1- pt) 'gnus-part))
5319 (get-text-property (prog2
5320 (forward-line 1)
5321 (point)
5322 (goto-char pt))
5323 'gnus-part)
5324 (get-text-property
5325 (or (and (setq pt (previous-single-property-change
5326 pt 'gnus-part))
5327 (1- pt))
5328 (next-single-property-change (point) 'gnus-part)
5329 (point))
5330 'gnus-part)
5331 1))))
5332 ;; Check whether the specified part exists.
5333 (when (> n (length gnus-article-mime-handle-alist))
5334 (error "No such part")))
5335 (unless
5336 (progn
5337 ;; To select the window is needed so that the cursor
5338 ;; might be visible on the MIME button.
5339 (select-window (prog1
5340 window
5341 (setq window (selected-window))
5342 ;; Article may be displayed in the other frame.
5343 (gnus-select-frame-set-input-focus
5344 (prog1
5345 frame
5346 (setq frame (selected-frame))))))
5347 (when (gnus-article-goto-part n)
5348 ;; We point the cursor and the arrow at the MIME button
5349 ;; when the `function' prompt the user for something.
5350 (let ((cursor-in-non-selected-windows t)
5351 (overlay-arrow-string "=>")
5352 (overlay-arrow-position (point-marker)))
5353 (unwind-protect
5354 (cond
5355 ((and no-handle interactive)
5356 (call-interactively function))
5357 (no-handle
5358 (funcall function))
5359 (interactive
5360 (call-interactively
5361 function
5362 (cdr (assq n gnus-article-mime-handle-alist))))
5363 (t
5364 (funcall function
5365 (cdr (assq n gnus-article-mime-handle-alist)))))
5366 (set-marker overlay-arrow-position nil)
5367 (unless gnus-auto-select-part
5368 (gnus-select-frame-set-input-focus frame)
5369 (select-window window))))
5370 t))
5371 (if gnus-inhibit-mime-unbuttonizing
5372 ;; This is the default though the program shouldn't reach here.
5373 (error "No such part")
5374 ;; The part which doesn't have the MIME button is selected.
5375 ;; So, we display all the buttons and redo it.
5376 (let ((gnus-inhibit-mime-unbuttonizing t))
5377 (gnus-summary-show-article)
5378 (gnus-article-part-wrapper n function no-handle))))))
5380 (defun gnus-article-pipe-part (n)
5381 "Pipe MIME part N, which is the numerical prefix."
5382 (interactive "P")
5383 (gnus-article-part-wrapper n 'mm-pipe-part))
5385 (defun gnus-article-save-part (n)
5386 "Save MIME part N, which is the numerical prefix."
5387 (interactive "P")
5388 (gnus-article-part-wrapper n 'mm-save-part))
5390 (defun gnus-article-interactively-view-part (n)
5391 "View MIME part N interactively, which is the numerical prefix."
5392 (interactive "P")
5393 (gnus-article-part-wrapper n 'mm-interactively-view-part))
5395 (defun gnus-article-copy-part (n)
5396 "Copy MIME part N, which is the numerical prefix."
5397 (interactive "P")
5398 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
5400 (defun gnus-article-view-part-as-charset (n)
5401 "View MIME part N using a specified charset.
5402 N is the numerical prefix."
5403 (interactive "P")
5404 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
5406 (defun gnus-article-view-part-externally (n)
5407 "View MIME part N externally, which is the numerical prefix."
5408 (interactive "P")
5409 (gnus-article-part-wrapper n 'gnus-mime-view-part-externally))
5411 (defun gnus-article-inline-part (n)
5412 "Inline MIME part N, which is the numerical prefix."
5413 (interactive "P")
5414 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
5416 (defun gnus-article-save-part-and-strip (n)
5417 "Save MIME part N and replace it with an external body.
5418 N is the numerical prefix."
5419 (interactive "P")
5420 (gnus-article-part-wrapper n 'gnus-mime-save-part-and-strip t))
5422 (defun gnus-article-replace-part (n)
5423 "Replace MIME part N with an external body.
5424 N is the numerical prefix."
5425 (interactive "P")
5426 (gnus-article-part-wrapper n 'gnus-mime-replace-part t t))
5428 (defun gnus-article-delete-part (n)
5429 "Delete MIME part N and add some information about the removed part.
5430 N is the numerical prefix."
5431 (interactive "P")
5432 (gnus-article-part-wrapper n 'gnus-mime-delete-part t))
5434 (defun gnus-article-view-part-as-type (n)
5435 "Choose a MIME media type, and view part N as such.
5436 N is the numerical prefix."
5437 (interactive "P")
5438 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-type t))
5440 (defun gnus-article-mime-match-handle-first (condition)
5441 (if condition
5442 (let (n)
5443 (dolist (ihandle gnus-article-mime-handle-alist)
5444 (if (and (cond
5445 ((functionp condition)
5446 (funcall condition (cdr ihandle)))
5447 ((eq condition 'undisplayed)
5448 (not (or (mm-handle-undisplayer (cdr ihandle))
5449 (equal (mm-handle-media-type (cdr ihandle))
5450 "multipart/alternative"))))
5451 ((eq condition 'undisplayed-alternative)
5452 (not (mm-handle-undisplayer (cdr ihandle))))
5453 (t t))
5454 (gnus-article-goto-part (car ihandle))
5455 (or (not n) (< (car ihandle) n)))
5456 (setq n (car ihandle))))
5457 (or n 1))
5458 1))
5460 (defun gnus-article-view-part (&optional n)
5461 "View MIME part N, which is the numerical prefix."
5462 (interactive "P")
5463 (with-current-buffer gnus-article-buffer
5464 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
5465 gnus-article-mime-match-handle-function)))
5466 (when (> n (length gnus-article-mime-handle-alist))
5467 (error "No such part"))
5468 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
5469 (when (gnus-article-goto-part n)
5470 (if (equal (car handle) "multipart/alternative")
5471 (gnus-article-press-button)
5472 (when (eq (gnus-mm-display-part handle) 'internal)
5473 (gnus-set-window-start)))))))
5475 (defsubst gnus-article-mime-total-parts ()
5476 (if (bufferp (car gnus-article-mime-handles))
5477 1 ;; single part
5478 (1- (length gnus-article-mime-handles))))
5480 (defun gnus-mm-display-part (handle)
5481 "Display HANDLE and fix MIME button."
5482 (let ((id (get-text-property (point) 'gnus-part))
5483 (point (point))
5484 (inhibit-read-only t))
5485 (forward-line 1)
5486 (prog1
5487 (let ((window (selected-window))
5488 (mail-parse-charset gnus-newsgroup-charset)
5489 (mail-parse-ignored-charsets
5490 (if (gnus-buffer-live-p gnus-summary-buffer)
5491 (with-current-buffer gnus-summary-buffer
5492 gnus-newsgroup-ignored-charsets)
5493 nil)))
5494 (save-excursion
5495 (unwind-protect
5496 (let ((win (gnus-get-buffer-window (current-buffer) t))
5497 (beg (point)))
5498 (when win
5499 (select-window win))
5500 (goto-char point)
5501 (forward-line)
5502 (if (mm-handle-displayed-p handle)
5503 ;; This will remove the part.
5504 (mm-display-part handle)
5505 (save-restriction
5506 (narrow-to-region (point)
5507 (if (eobp) (point) (1+ (point))))
5508 (gnus-bind-safe-url-regexp (mm-display-part handle))
5509 ;; We narrow to the part itself and
5510 ;; then call the treatment functions.
5511 (goto-char (point-min))
5512 (forward-line 1)
5513 (narrow-to-region (point) (point-max))
5514 (gnus-treat-article
5515 nil id
5516 (gnus-article-mime-total-parts)
5517 (mm-handle-media-type handle)))))
5518 (if (window-live-p window)
5519 (select-window window)))))
5520 (goto-char point)
5521 (gnus-delete-line)
5522 (gnus-insert-mime-button
5523 handle id (list (mm-handle-displayed-p handle)))
5524 (goto-char point))))
5526 (defun gnus-article-goto-part (n)
5527 "Go to MIME part N."
5528 (gnus-goto-char (text-property-any (point-min) (point-max) 'gnus-part n)))
5530 (defun gnus-insert-mime-button (handle gnus-tmp-id &optional displayed)
5531 (let ((gnus-tmp-name
5532 (or (mail-content-type-get (mm-handle-type handle) 'name)
5533 (mail-content-type-get (mm-handle-disposition handle) 'filename)
5534 (mail-content-type-get (mm-handle-type handle) 'url)
5535 ""))
5536 (gnus-tmp-type (mm-handle-media-type handle))
5537 (gnus-tmp-description (or (mm-handle-description handle) ""))
5538 (gnus-tmp-dots
5539 (if (if displayed (car displayed)
5540 (mm-handle-displayed-p handle))
5541 "" "..."))
5542 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
5543 (buffer-size)))
5544 gnus-tmp-type-long b e)
5545 (when (string-match ".*/" gnus-tmp-name)
5546 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
5547 (setq gnus-tmp-type-long (concat gnus-tmp-type
5548 (and (not (equal gnus-tmp-name ""))
5549 (concat "; " gnus-tmp-name))))
5550 (unless (equal gnus-tmp-description "")
5551 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
5552 (unless (bolp)
5554 (setq b (point))
5555 (gnus-eval-format
5556 gnus-mime-button-line-format gnus-mime-button-line-format-alist
5557 `(keymap ,gnus-mime-button-map
5558 gnus-callback gnus-mm-display-part
5559 gnus-part ,gnus-tmp-id
5560 article-type annotation
5561 gnus-data ,handle))
5562 (setq e (if (bolp)
5563 ;; Exclude a newline.
5564 (1- (point))
5565 (point)))
5566 (when gnus-article-button-face
5567 (gnus-overlay-put (gnus-make-overlay b e nil t)
5568 'face gnus-article-button-face))
5569 (widget-convert-button
5570 'link b e
5571 :mime-handle handle
5572 :action 'gnus-widget-press-button
5573 :button-keymap gnus-mime-button-map
5574 :help-echo
5575 (lambda (widget/window &optional overlay pos)
5576 ;; Needed to properly clear the message due to a bug in
5577 ;; wid-edit (XEmacs only).
5578 (if (boundp 'help-echo-owns-message)
5579 (setq help-echo-owns-message t))
5580 (format
5581 "%S: %s the MIME part; %S: more options"
5582 (aref gnus-mouse-2 0)
5583 ;; XEmacs will get a single widget arg; Emacs 21 will get
5584 ;; window, overlay, position.
5585 (if (mm-handle-displayed-p
5586 (if overlay
5587 (with-current-buffer (gnus-overlay-buffer overlay)
5588 (widget-get (widget-at (gnus-overlay-start overlay))
5589 :mime-handle))
5590 (widget-get widget/window :mime-handle)))
5591 "hide" "show")
5592 (aref gnus-down-mouse-3 0))))))
5594 (defun gnus-widget-press-button (elems el)
5595 (goto-char (widget-get elems :from))
5596 (gnus-article-press-button))
5598 (defvar gnus-displaying-mime nil)
5600 (defun gnus-display-mime (&optional ihandles)
5601 "Display the MIME parts."
5602 (save-excursion
5603 (save-selected-window
5604 (let ((window (get-buffer-window gnus-article-buffer))
5605 (point (point)))
5606 (when window
5607 (select-window window)
5608 ;; We have to do this since selecting the window
5609 ;; may change the point. So we set the window point.
5610 (set-window-point window point)))
5611 (let ((handles ihandles)
5612 (inhibit-read-only t)
5613 handle)
5614 (cond (handles)
5615 ((setq handles (mm-dissect-buffer nil gnus-article-loose-mime))
5616 (when gnus-article-emulate-mime
5617 (mm-uu-dissect-text-parts handles)))
5618 (gnus-article-emulate-mime
5619 (setq handles (mm-uu-dissect))))
5620 (when (and (not ihandles)
5621 (not gnus-displaying-mime))
5622 ;; Top-level call; we clean up.
5623 (when gnus-article-mime-handles
5624 (mm-destroy-parts gnus-article-mime-handles)
5625 (setq gnus-article-mime-handle-alist nil));; A trick.
5626 (setq gnus-article-mime-handles handles)
5627 ;; We allow users to glean info from the handles.
5628 (when gnus-article-mime-part-function
5629 (gnus-mime-part-function handles)))
5630 (if (and handles
5631 (or (not (stringp (car handles)))
5632 (cdr handles)))
5633 (progn
5634 (when (and (not ihandles)
5635 (not gnus-displaying-mime))
5636 ;; Clean up for mime parts.
5637 (article-goto-body)
5638 (delete-region (point) (point-max)))
5639 (let ((gnus-displaying-mime t))
5640 (gnus-mime-display-part handles)))
5641 (save-restriction
5642 (article-goto-body)
5643 (narrow-to-region (point) (point-max))
5644 (gnus-treat-article nil 1 1)
5645 (widen)))
5646 (unless ihandles
5647 ;; Highlight the headers.
5648 (save-excursion
5649 (save-restriction
5650 (article-goto-body)
5651 (narrow-to-region (point-min) (point))
5652 (gnus-article-save-original-date
5653 (gnus-treat-article 'head)))))))
5654 ;; Cope with broken MIME messages.
5655 (goto-char (point-max))
5656 (unless (bolp)
5659 (defcustom gnus-mime-display-multipart-as-mixed nil
5662 If t, it overrides nil values of
5663 `gnus-mime-display-multipart-alternative-as-mixed' and
5664 `gnus-mime-display-multipart-related-as-mixed'."
5665 :group 'gnus-article-mime
5666 :type 'boolean)
5668 (defcustom gnus-mime-display-multipart-alternative-as-mixed nil
5670 :version "22.1"
5671 :group 'gnus-article-mime
5672 :type 'boolean)
5674 (defcustom gnus-mime-display-multipart-related-as-mixed nil
5678 `mm-discouraged-alternatives'\) images or other material inside a
5680 :version "22.1"
5681 :group 'gnus-article-mime
5682 :type 'boolean)
5684 (defun gnus-mime-display-part (handle)
5685 (cond
5686 ;; Maybe a broken MIME message.
5687 ((null handle))
5688 ;; Single part.
5689 ((not (stringp (car handle)))
5690 (gnus-mime-display-single handle))
5691 ;; User-defined multipart
5692 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
5693 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
5694 handle))
5695 ;; multipart/alternative
5696 ((and (equal (car handle) "multipart/alternative")
5697 (not (or gnus-mime-display-multipart-as-mixed
5698 gnus-mime-display-multipart-alternative-as-mixed)))
5699 (let ((id (1+ (length gnus-article-mime-handle-alist))))
5700 (push (cons id handle) gnus-article-mime-handle-alist)
5701 (gnus-mime-display-alternative (cdr handle) nil nil id)))
5702 ;; multipart/related
5703 ((and (equal (car handle) "multipart/related")
5704 (not (or gnus-mime-display-multipart-as-mixed
5705 gnus-mime-display-multipart-related-as-mixed)))
5706 ;;;!!!We should find the start part, but we just default
5707 ;;;!!!to the first part.
5708 ;;(gnus-mime-display-part (cadr handle))
5709 ;;;!!! Most multipart/related is an HTML message plus images.
5710 ;;;!!! Unfortunately we are unable to let W3 display those
5711 ;;;!!! included images, so we just display it as a mixed multipart.
5712 ;;(gnus-mime-display-mixed (cdr handle))
5713 ;;;!!! No, w3 can display everything just fine.
5714 (gnus-mime-display-part (cadr handle)))
5715 ((equal (car handle) "multipart/signed")
5716 (gnus-add-wash-type 'signed)
5717 (gnus-mime-display-security handle))
5718 ((equal (car handle) "multipart/encrypted")
5719 (gnus-add-wash-type 'encrypted)
5720 (gnus-mime-display-security handle))
5721 ;; Other multiparts are handled like multipart/mixed.
5722 (t
5723 (gnus-mime-display-mixed (cdr handle)))))
5725 (defun gnus-mime-part-function (handles)
5726 (if (stringp (car handles))
5727 (mapcar 'gnus-mime-part-function (cdr handles))
5728 (funcall gnus-article-mime-part-function handles)))
5730 (defun gnus-mime-display-mixed (handles)
5731 (mapcar 'gnus-mime-display-part handles))
5733 (defun gnus-mime-display-single (handle)
5734 (let ((type (mm-handle-media-type handle))
5735 (ignored gnus-ignored-mime-types)
5736 (not-attachment t)
5737 (move nil)
5738 display text)
5739 (catch 'ignored
5740 (progn
5741 (while ignored
5742 (when (string-match (pop ignored) type)
5743 (throw 'ignored nil)))
5744 (if (and (setq not-attachment
5745 (and (not (mm-inline-override-p handle))
5746 (or (not (mm-handle-disposition handle))
5747 (equal (car (mm-handle-disposition handle))
5748 "inline")
5749 (mm-attachment-override-p handle))))
5750 (mm-automatic-display-p handle)
5751 (or (and
5752 (mm-inlinable-p handle)
5753 (mm-inlined-p handle))
5754 (mm-automatic-external-display-p type)))
5755 (setq display t)
5756 (when (equal (mm-handle-media-supertype handle) "text")
5757 (setq text t)))
5758 (let ((id (1+ (length gnus-article-mime-handle-alist)))
5759 beg)
5760 (push (cons id handle) gnus-article-mime-handle-alist)
5761 (when (and display
5762 (equal (mm-handle-media-supertype handle) "message"))
5763 (insert-char
5765 (cond ((not (bolp)) 2)
5767 (t 1))))
5768 (when (or (not display)
5769 (not (gnus-unbuttonized-mime-type-p type)))
5770 (gnus-insert-mime-button
5771 handle id (list (or display (and not-attachment text))))
5772 (gnus-article-insert-newline)
5773 ;; Remember modify the number of forward lines.
5774 (setq move t))
5775 (setq beg (point))
5776 (cond
5777 (display
5778 (when move
5779 (forward-line -1)
5780 (setq beg (point)))
5781 (let ((mail-parse-charset gnus-newsgroup-charset)
5782 (mail-parse-ignored-charsets
5783 (save-excursion (condition-case ()
5784 (set-buffer gnus-summary-buffer)
5785 (error))
5786 gnus-newsgroup-ignored-charsets)))
5787 (gnus-bind-safe-url-regexp (mm-display-part handle t)))
5788 (goto-char (point-max)))
5789 ((and text not-attachment)
5790 (when move
5791 (forward-line -1)
5792 (setq beg (point)))
5793 (gnus-article-insert-newline)
5794 (mm-insert-inline
5795 handle
5796 (let ((charset (or (mail-content-type-get (mm-handle-type handle)
5797 'charset)
5798 (and (equal type "text/calendar") 'utf-8))))
5799 (cond ((not charset)
5800 (mm-string-as-multibyte (mm-get-part handle)))
5801 ((eq charset 'gnus-decoded)
5802 (with-current-buffer (mm-handle-buffer handle)
5803 (buffer-string)))
5804 (t
5805 (mm-decode-string (mm-get-part handle) charset)))))
5806 (goto-char (point-max))))
5807 ;; Do highlighting.
5808 (save-excursion
5809 (save-restriction
5810 (narrow-to-region beg (point))
5811 (if (eq handle gnus-article-mime-handles)
5812 ;; The format=flowed case.
5813 (gnus-treat-article nil 1 1 (mm-handle-media-type handle))
5814 ;; Don't count signature parts that are never displayed.
5815 ;; The part number should be re-calculated supposing this
5816 ;; might be a message/rfc822 part.
5817 (let (handles)
5818 (dolist (part gnus-article-mime-handles)
5819 (unless (or (stringp part)
5820 (equal (car (mm-handle-type part))
5821 "application/pgp-signature"))
5822 (push part handles)))
5823 (gnus-treat-article
5824 nil (length (memq handle handles)) (length handles)
5825 (mm-handle-media-type handle)))))))))))
5827 (defun gnus-unbuttonized-mime-type-p (type)
5828 "Say whether TYPE is to be unbuttonized."
5829 (unless gnus-inhibit-mime-unbuttonizing
5830 (when (catch 'found
5831 (let ((types gnus-unbuttonized-mime-types))
5832 (while types
5833 (when (string-match (pop types) type)
5834 (throw 'found t)))))
5835 (not (catch 'found
5836 (let ((types gnus-buttonized-mime-types))
5837 (while types
5838 (when (string-match (pop types) type)
5839 (throw 'found t)))))))))
5841 (defun gnus-article-insert-newline ()
5842 "Insert a newline, but mark it as undeletable."
5843 (gnus-put-text-property
5846 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
5847 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
5848 (ihandles handles)
5849 (point (point))
5850 handle (inhibit-read-only t) from props begend not-pref)
5851 (save-window-excursion
5852 (save-restriction
5853 (when ibegend
5854 (narrow-to-region (car ibegend)
5855 (or (cdr ibegend)
5856 (progn
5857 (goto-char (car ibegend))
5858 (forward-line 2)
5859 (point))))
5860 (delete-region (point-min) (point-max))
5861 (mm-remove-parts handles))
5862 (setq begend (list (point-marker)))
5863 ;; Do the toggle.
5864 (unless (setq not-pref (cadr (member preferred ihandles)))
5865 (setq not-pref (car ihandles)))
5866 (when (or ibegend
5867 (not preferred)
5868 (not (gnus-unbuttonized-mime-type-p
5869 "multipart/alternative")))
5870 (gnus-add-text-properties
5871 (setq from (point))
5872 (progn
5873 (insert (format "%d. " id))
5874 (point))
5875 `(gnus-callback
5876 (lambda (handles)
5877 (unless ,(not ibegend)
5878 (setq gnus-article-mime-handle-alist
5879 ',gnus-article-mime-handle-alist))
5880 (gnus-mime-display-alternative
5881 ',ihandles ',not-pref ',begend ,id))
5882 keymap ,gnus-mime-button-map
5883 ,gnus-mouse-face-prop ,gnus-article-mouse-face
5884 face ,gnus-article-button-face
5885 gnus-part ,id
5886 article-type multipart))
5887 (widget-convert-button 'link from (point)
5888 :action 'gnus-widget-press-button
5889 :button-keymap gnus-widget-button-keymap)
5890 ;; Do the handles
5891 (while (setq handle (pop handles))
5892 (gnus-add-text-properties
5893 (setq from (point))
5894 (progn
5895 (insert (format "(%c) %-18s"
5896 (if (equal handle preferred) ?* ? )
5897 (mm-handle-media-type handle)))
5898 (point))
5899 `(gnus-callback
5900 (lambda (handles)
5901 (unless ,(not ibegend)
5902 (setq gnus-article-mime-handle-alist
5903 ',gnus-article-mime-handle-alist))
5904 (gnus-mime-display-alternative
5905 ',ihandles ',handle ',begend ,id))
5906 keymap ,gnus-mime-button-map
5907 ,gnus-mouse-face-prop ,gnus-article-mouse-face
5908 face ,gnus-article-button-face
5909 gnus-part ,id
5910 gnus-data ,handle))
5911 (widget-convert-button 'link from (point)
5912 :action 'gnus-widget-press-button
5913 :button-keymap gnus-widget-button-keymap)
5914 (insert " "))
5916 (when preferred
5917 (if (stringp (car preferred))
5918 (gnus-display-mime preferred)
5919 (let ((mail-parse-charset gnus-newsgroup-charset)
5920 (mail-parse-ignored-charsets
5921 (with-current-buffer gnus-summary-buffer
5922 gnus-newsgroup-ignored-charsets)))
5923 (gnus-bind-safe-url-regexp (mm-display-part preferred))
5924 ;; Do highlighting.
5925 (save-excursion
5926 (save-restriction
5927 (narrow-to-region (car begend) (point-max))
5928 (gnus-treat-article
5929 nil (length gnus-article-mime-handle-alist)
5930 (gnus-article-mime-total-parts)
5931 (mm-handle-media-type handle))))))
5932 (goto-char (point-max))
5933 (setcdr begend (point-marker)))))
5934 (when ibegend
5935 (goto-char point))))
5937 (defconst gnus-article-wash-status-strings
5938 (let ((alist '((cite "c" "Possible hidden citation text"
5939 " " "All citation text visible")
5940 (headers "h" "Hidden headers"
5941 " " "All headers visible.")
5942 (pgp "p" "Encrypted or signed message status hidden"
5943 " " "No hidden encryption nor digital signature status")
5944 (signature "s" "Signature has been hidden"
5945 " " "Signature is visible")
5946 (overstrike "o" "Overstrike (^H) characters applied"
5947 " " "No overstrike characters applied")
5948 (emphasis "e" "/*_Emphasis_*/ characters applied"
5949 " " "No /*_emphasis_*/ characters applied")))
5950 result)
5951 (dolist (entry alist result)
5952 (let ((key (nth 0 entry))
5953 (on (copy-sequence (nth 1 entry)))
5954 (on-help (nth 2 entry))
5955 (off (copy-sequence (nth 3 entry)))
5956 (off-help (nth 4 entry)))
5957 (put-text-property 0 1 'help-echo on-help on)
5958 (put-text-property 0 1 'help-echo off-help off)
5959 (push (list key on off) result))))
5960 "Alist of strings describing wash status in the mode line.
5961 Each entry has the form (KEY ON OF), where the KEY is a symbol
5962 representing the particular washing function, ON is the string to use
5963 in the article mode line when the washing function is active, and OFF
5964 is the string to use when it is inactive.")
5966 (defun gnus-article-wash-status-entry (key value)
5967 (let ((entry (assoc key gnus-article-wash-status-strings)))
5968 (if value (nth 1 entry) (nth 2 entry))))
5970 (defun gnus-article-wash-status ()
5971 "Return a string which display status of article washing."
5972 (with-current-buffer gnus-article-buffer
5973 (let ((cite (memq 'cite gnus-article-wash-types))
5974 (headers (memq 'headers gnus-article-wash-types))
5975 (boring (memq 'boring-headers gnus-article-wash-types))
5976 (pgp (memq 'pgp gnus-article-wash-types))
5977 (pem (memq 'pem gnus-article-wash-types))
5978 (signed (memq 'signed gnus-article-wash-types))
5979 (encrypted (memq 'encrypted gnus-article-wash-types))
5980 (signature (memq 'signature gnus-article-wash-types))
5981 (overstrike (memq 'overstrike gnus-article-wash-types))
5982 (emphasis (memq 'emphasis gnus-article-wash-types)))
5983 (concat
5984 (gnus-article-wash-status-entry 'cite cite)
5985 (gnus-article-wash-status-entry 'headers (or headers boring))
5986 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
5987 (gnus-article-wash-status-entry 'signature signature)
5988 (gnus-article-wash-status-entry 'overstrike overstrike)
5989 (gnus-article-wash-status-entry 'emphasis emphasis)))))
5991 (defun gnus-add-wash-type (type)
5992 "Add a washing of TYPE to the current status."
5993 (add-to-list 'gnus-article-wash-types type))
5995 (defun gnus-delete-wash-type (type)
5996 "Add a washing of TYPE to the current status."
5997 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
5999 (defun gnus-add-image (category image)
6000 "Add IMAGE of CATEGORY to the list of displayed images."
6001 (let ((entry (assq category gnus-article-image-alist)))
6002 (unless entry
6003 (setq entry (list category))
6004 (push entry gnus-article-image-alist))
6005 (nconc entry (list image))))
6007 (defun gnus-delete-images (category)
6008 "Delete all images in CATEGORY."
6009 (let ((entry (assq category gnus-article-image-alist)))
6010 (dolist (image (cdr entry))
6011 (gnus-remove-image image category))
6012 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
6013 (gnus-delete-wash-type category)))
6015 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
6017 (defun gnus-article-maybe-hide-headers ()
6018 "Hide unwanted headers if `gnus-have-all-headers' is nil.
6019 Provided for backwards compatibility."
6020 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
6021 (not (with-current-buffer gnus-summary-buffer
6022 gnus-have-all-headers)))
6023 (not gnus-inhibit-hiding))
6024 (gnus-article-hide-headers)))
6026 ;;; Article savers.
6028 (defun gnus-output-to-file (file-name)
6029 "Append the current article to a file named FILE-NAME.
6030 If `gnus-article-save-coding-system' is non-nil, it is used to encode
6031 text and used as the value of the coding cookie which is added to the
6032 top of a file. Otherwise, this function saves a raw article without
6033 the coding cookie."
6034 (let* ((artbuf (current-buffer))
6035 (file-name-coding-system nnmail-pathname-coding-system)
6036 (coding gnus-article-save-coding-system)
6037 (coding-system-for-read (if coding
6038 nil ;; Rely on the coding cookie.
6039 mm-text-coding-system))
6040 (coding-system-for-write (or coding
6041 mm-text-coding-system-for-write
6042 mm-text-coding-system))
6043 (exists (file-exists-p file-name)))
6044 (with-temp-buffer
6045 (when exists
6046 (insert-file-contents file-name)
6047 (goto-char (point-min))
6048 ;; Remove the existing coding cookie.
6050 (delete-region (match-beginning 0) (match-end 0))))
6051 (goto-char (point-max))
6052 (insert-buffer-substring artbuf)
6053 ;; Append newline at end of the buffer as separator, and then
6054 ;; save it to file.
6055 (goto-char (point-max))
6057 (when coding
6058 ;; If the coding system is not suitable to encode the text,
6059 ;; ask a user for a proper one.
6060 (when (fboundp 'select-safe-coding-system)
6061 (setq coding (coding-system-base
6062 (save-window-excursion
6063 (select-safe-coding-system (point-min) (point-max)
6064 coding))))
6065 (setq coding-system-for-write
6066 (or (cdr (assq coding '((mule-utf-8 . utf-8))))
6067 coding)))
6068 (goto-char (point-min))
6069 ;; Add the coding cookie.
6071 coding-system-for-write)))
6072 (if exists
6073 (progn
6074 (write-region (point-min) (point-max) file-name nil 'no-message)
6075 (message "Appended to %s" file-name))
6076 (write-region (point-min) (point-max) file-name))))
6077 t)
6079 (defun gnus-narrow-to-page (&optional arg)
6080 "Narrow the article buffer to a page.
6081 If given a numerical ARG, move forward ARG pages."
6082 (interactive "P")
6083 (setq arg (if arg (prefix-numeric-value arg) 0))
6084 (with-current-buffer gnus-article-buffer
6085 (widen)
6086 ;; Remove any old next/prev buttons.
6087 (when (gnus-visual-p 'page-marker)
6088 (let ((inhibit-read-only t))
6089 (gnus-remove-text-with-property 'gnus-prev)
6090 (gnus-remove-text-with-property 'gnus-next)))
6091 (let (st nd pt)
6092 (when (save-excursion
6093 (cond ((< arg 0)
6094 (if (re-search-backward page-delimiter nil 'move (abs arg))
6095 (prog1
6096 (setq nd (match-beginning 0)
6097 pt nd)
6098 (when (re-search-backward page-delimiter nil t)
6099 (setq st (match-end 0))))
6100 (when (re-search-forward page-delimiter nil t)
6101 (setq nd (match-beginning 0)
6102 pt (point-min)))))
6103 ((> arg 0)
6104 (if (re-search-forward page-delimiter nil 'move arg)
6105 (prog1
6106 (setq st (match-end 0)
6107 pt st)
6108 (when (re-search-forward page-delimiter nil t)
6109 (setq nd (match-beginning 0))))
6110 (when (re-search-backward page-delimiter nil t)
6111 (setq st (match-end 0)
6112 pt (point-max)))))
6113 (t
6114 (when (re-search-backward page-delimiter nil t)
6115 (goto-char (setq st (match-end 0))))
6116 (when (re-search-forward page-delimiter nil t)
6117 (setq nd (match-beginning 0)))
6118 (or st nd))))
6119 (setq gnus-page-broken t)
6120 (when pt (goto-char pt))
6121 (narrow-to-region (or st (point-min)) (or nd (point-max)))
6122 (when (gnus-visual-p 'page-marker)
6123 (save-excursion
6124 (when nd
6125 (goto-char nd)
6126 (gnus-insert-next-page-button))
6127 (when st
6128 (goto-char st)
6129 (gnus-insert-prev-page-button))))))))
6131 ;; Article mode commands
6133 (defun gnus-article-goto-next-page ()
6134 "Show the next page of the article."
6135 (interactive)
6136 (when (gnus-article-next-page)
6137 (goto-char (point-min))
6138 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
6141 (defun gnus-article-goto-prev-page ()
6142 "Show the previous page of the article."
6143 (interactive)
6144 (if (save-restriction (widen) (bobp)) ;; Real beginning-of-buffer?
6145 (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
6146 (gnus-article-prev-page nil)))
6148 ;; This is cleaner but currently breaks `gnus-pick-mode':
6149 ;;
6150 ;; (defun gnus-article-goto-next-page ()
6151 ;; "Show the next page of the article."
6152 ;; (interactive)
6153 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6154 ;; (gnus-summary-next-page)))
6155 ;;
6156 ;; (defun gnus-article-goto-prev-page ()
6157 ;; "Show the next page of the article."
6158 ;; (interactive)
6159 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6160 ;; (gnus-summary-prev-page)))
6162 (defun gnus-article-next-page (&optional lines)
6163 "Show the next page of the current article.
6164 If end of article, return non-nil. Otherwise return nil.
6165 Argument LINES specifies lines to be scrolled up."
6166 (interactive "p")
6167 (move-to-window-line (if (featurep 'xemacs) -1 (- -1 scroll-margin)))
6168 (if (and (not (and gnus-article-over-scroll
6169 (> (count-lines (window-start) (point-max))
6170 (if (featurep 'xemacs)
6171 (or lines (1- (window-height)))
6172 (+ (or lines (1- (window-height))) scroll-margin)))))
6173 (save-excursion
6174 (end-of-line)
6175 (and (pos-visible-in-window-p) ;Not continuation line.
6176 (>= (1+ (point)) (point-max))))) ;Allow for trailing newline.
6177 ;; Nothing in this page.
6178 (if (or (not gnus-page-broken)
6179 (save-excursion
6180 (save-restriction
6181 (widen)
6182 (forward-line)
6183 (eobp)))) ;Real end-of-buffer?
6184 (progn
6185 (when gnus-article-over-scroll
6186 (gnus-article-next-page-1 lines))
6187 t) ;Nothing more.
6188 (gnus-narrow-to-page 1) ;Go to next page.
6189 nil)
6190 ;; More in this page.
6191 (gnus-article-next-page-1 lines)
6192 nil))
6194 (defmacro gnus-article-beginning-of-window ()
6195 "Move point to the beginning of the window.
6196 In Emacs, the point is placed at the line number which `scroll-margin'
6197 specifies."
6198 (if (featurep 'xemacs)
6199 '(move-to-window-line 0)
6200 '(move-to-window-line
6201 (min (max 0 scroll-margin)
6202 (max 1 (- (window-height)
6203 (if mode-line-format 1 0)
6204 (if header-line-format 1 0)
6205 2))))))
6207 (defun gnus-article-next-page-1 (lines)
6208 (unless (featurep 'xemacs)
6209 ;; Protect against the bug that Emacs 21.x hangs up when scrolling up for
6210 ;; too many number of lines if `scroll-margin' is set as two or greater.
6211 (when (and (numberp lines)
6212 (> lines 0)
6213 (> scroll-margin 0))
6214 (setq lines (min lines
6215 (max 0 (- (count-lines (window-start) (point-max))
6216 scroll-margin))))))
6217 (condition-case ()
6218 (let ((scroll-in-place nil))
6219 (scroll-up lines))
6220 (end-of-buffer
6221 ;; Long lines may cause an end-of-buffer error.
6222 (goto-char (point-max))))
6223 (gnus-article-beginning-of-window))
6225 (defun gnus-article-prev-page (&optional lines)
6226 "Show previous page of current article.
6227 Argument LINES specifies lines to be scrolled down."
6228 (interactive "p")
6229 (move-to-window-line 0)
6230 (if (and gnus-page-broken
6231 (bobp)
6232 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
6233 (progn
6234 (gnus-narrow-to-page -1) ;Go to previous page.
6235 (goto-char (point-max))
6236 (recenter (if gnus-article-over-scroll
6237 (if lines
6238 (max (if (featurep 'xemacs)
6239 lines
6240 (+ lines scroll-margin))
6241 3)
6242 (- (window-height) 2))
6243 -1)))
6244 (prog1
6245 (condition-case ()
6246 (let ((scroll-in-place nil))
6247 (scroll-down lines))
6248 (beginning-of-buffer
6249 (goto-char (point-min))))
6250 (gnus-article-beginning-of-window))))
6252 (defun gnus-article-only-boring-p ()
6253 "Decide whether there is only boring text remaining in the article.
6255 not have a face in `gnus-article-boring-faces'."
6256 (when (and gnus-article-skip-boring
6257 (boundp 'gnus-article-boring-faces)
6258 (symbol-value 'gnus-article-boring-faces))
6259 (save-excursion
6260 (let ((inhibit-point-motion-hooks t))
6261 (catch 'only-boring
6263 (forward-char -1)
6264 (when (not (gnus-intersection
6265 (gnus-faces-at (point))
6266 (symbol-value 'gnus-article-boring-faces)))
6267 (throw 'only-boring nil)))
6268 (throw 'only-boring t))))))
6270 (defun gnus-article-refer-article ()
6271 "Read article specified by message-id around point."
6272 (interactive)
6273 (save-excursion
6277 (let ((msg-id (concat "<" (match-string 0) ">")))
6278 (set-buffer gnus-summary-buffer)
6279 (gnus-summary-refer-article msg-id))
6280 (error "No references around point"))))
6282 (defun gnus-article-show-summary ()
6283 "Reconfigure windows to show summary buffer."
6284 (interactive)
6285 (if (not (gnus-buffer-live-p gnus-summary-buffer))
6286 (error "There is no summary buffer for this article buffer")
6287 (gnus-article-set-globals)
6288 (gnus-configure-windows 'article)
6289 (gnus-summary-goto-subject gnus-current-article)
6290 (gnus-summary-position-point)))
6292 (defun gnus-article-describe-briefly ()
6293 "Describe article mode commands briefly."
6294 (interactive)
6295 (gnus-message 6 (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")))
6297 (defun gnus-article-check-buffer ()
6298 "Beep if not in an article buffer."
6299 (unless (equal major-mode 'gnus-article-mode)
6300 (error "Command invoked outside of a Gnus article buffer")))
6302 (defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
6303 "Read a summary buffer key sequence and execute it from the article buffer."
6304 (interactive "P")
6305 (gnus-article-check-buffer)
6306 (let ((nosaves
6307 '("q" "Q" "c" "r" "\C-c\C-f" "m" "a" "f"
6308 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
6309 "=" "^" "\M-^" "|"))
6310 (nosave-but-article
6312 "An" "Ap" [?A (meta return)] [?A delete]))
6313 (nosave-in-article
6314 '("AS" "\C-d"))
6315 (up-to-top
6316 '("n" "Gn" "p" "Gp"))
6317 keys new-sum-point)
6318 (with-current-buffer gnus-article-current-summary
6319 (let (gnus-pick-mode)
6320 (setq unread-command-events (nconc unread-command-events
6321 (list (or key last-command-event)))
6322 keys (if (featurep 'xemacs)
6323 (events-to-keys (read-key-sequence nil t))
6324 (read-key-sequence nil t)))))
6326 (message "")
6328 (cond
6329 ((eq (aref keys (1- (length keys))) ?\C-h)
6330 (gnus-article-describe-bindings (substring keys 0 -1)))
6331 ((or (member keys nosaves)
6332 (member keys nosave-but-article)
6333 (member keys nosave-in-article))
6334 (let (func)
6335 (save-window-excursion
6336 (pop-to-buffer gnus-article-current-summary)
6337 ;; We disable the pick minor mode commands.
6338 (let (gnus-pick-mode)
6339 (setq func (key-binding keys t))))
6340 (if (or (not func)
6341 (numberp func))
6342 (ding)
6343 (unless (member keys nosave-in-article)
6344 (set-buffer gnus-article-current-summary))
6345 (call-interactively func)
6346 (setq new-sum-point (point)))
6347 (when (member keys nosave-but-article)
6348 (pop-to-buffer gnus-article-buffer))))
6349 (t
6350 ;; These commands should restore window configuration.
6351 (let ((obuf (current-buffer))
6352 (owin (current-window-configuration))
6353 win func in-buffer selected new-sum-start new-sum-hscroll err)
6354 (cond (not-restore-window
6355 (pop-to-buffer gnus-article-current-summary)
6356 (setq win (selected-window)))
6357 ((setq win (get-buffer-window gnus-article-current-summary))
6358 (select-window win))
6359 (t
6360 (let ((summary-buffer gnus-article-current-summary))
6361 (gnus-configure-windows 'article)
6362 (unless (setq win (get-buffer-window summary-buffer 'visible))
6363 (let ((gnus-buffer-configuration
6364 '((article ((vertical 1.0
6365 (summary 0.25 point)
6366 (article 1.0)))))))
6367 (gnus-configure-windows 'article))
6368 (setq win (get-buffer-window summary-buffer 'visible)))
6369 (gnus-select-frame-set-input-focus (window-frame win))
6370 (select-window win))))
6371 (setq in-buffer (current-buffer))
6372 ;; We disable the pick minor mode commands.
6373 (if (and (setq func (let (gnus-pick-mode)
6374 (key-binding keys t)))
6375 (functionp func)
6376 (condition-case code
6377 (progn
6378 (call-interactively func)
6379 t)
6380 (error
6381 (setq err code)
6382 nil)))
6383 (progn
6384 (when (eq win (selected-window))
6385 (setq new-sum-point (point)
6386 new-sum-start (window-start win)
6387 new-sum-hscroll (window-hscroll win)))
6388 (when (or (eq in-buffer (current-buffer))
6389 (when (eq obuf (current-buffer))
6390 (set-buffer in-buffer)
6391 t))
6392 (setq selected (gnus-summary-select-article))
6393 (set-buffer obuf)
6394 (unless not-restore-window
6395 (set-window-configuration owin))
6396 (when (and (eq selected 'old)
6397 new-sum-point)
6398 (set-window-start (get-buffer-window (current-buffer))
6399 1)
6400 (set-window-point (get-buffer-window (current-buffer))
6401 (if (article-goto-body)
6402 (1- (point))
6403 (point))))
6404 (when (and (not not-restore-window)
6405 new-sum-point
6406 (window-live-p win)
6407 (with-current-buffer (window-buffer win)
6408 (eq major-mode 'gnus-summary-mode)))
6409 (set-window-point win new-sum-point)
6410 (set-window-start win new-sum-start)
6411 (set-window-hscroll win new-sum-hscroll))))
6412 (set-window-configuration owin)
6413 (if err
6414 (signal (car err) (cdr err))
6415 (ding))))))))
6417 (defun gnus-article-read-summary-send-keys ()
6418 (interactive)
6419 (let ((unread-command-events (list (gnus-character-to-event ?S))))
6420 (gnus-article-read-summary-keys)))
6422 (defun gnus-article-describe-key (key)
6423 "Display documentation of the function invoked by KEY.
6424 KEY is a string or a vector."
6425 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6426 (read-key-sequence "Describe key: "))))
6427 (gnus-article-check-buffer)
6428 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6429 gnus-article-read-summary-send-keys))
6430 (with-current-buffer gnus-article-current-summary
6431 (setq unread-command-events
6432 (if (featurep 'xemacs)
6433 (append key nil)
6434 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6435 (list 'meta (- x 128))
6436 x))
6437 key)))
6438 (let ((cursor-in-echo-area t)
6439 gnus-pick-mode)
6440 (describe-key (read-key-sequence nil t))))
6441 (describe-key key)))
6443 (defun gnus-article-describe-key-briefly (key &optional insert)
6444 "Display documentation of the function invoked by KEY.
6445 KEY is a string or a vector."
6446 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6447 (read-key-sequence "Describe key: "))
6448 current-prefix-arg))
6449 (gnus-article-check-buffer)
6450 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6451 gnus-article-read-summary-send-keys))
6452 (with-current-buffer gnus-article-current-summary
6453 (setq unread-command-events
6454 (if (featurep 'xemacs)
6455 (append key nil)
6456 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6457 (list 'meta (- x 128))
6458 x))
6459 key)))
6460 (let ((cursor-in-echo-area t)
6461 gnus-pick-mode)
6462 (describe-key-briefly (read-key-sequence nil t) insert)))
6463 (describe-key-briefly key insert)))
6465 ;;`gnus-agent-mode' in gnus-agent.el will define it.
6466 (defvar gnus-agent-summary-mode)
6467 (defvar gnus-draft-mode)
6468 ;; Calling help-buffer will autoload help-mode.
6469 (defvar help-xref-stack-item)
6471 (defun gnus-article-describe-bindings (&optional prefix)
6472 "Show a list of all defined keys, and their definitions.
6473 The optional argument PREFIX, if non-nil, should be a key sequence;
6474 then we display only bindings that start with that prefix."
6475 (interactive)
6476 (gnus-article-check-buffer)
6477 (let ((keymap (copy-keymap gnus-article-mode-map))
6478 (map (copy-keymap gnus-article-send-map))
6479 (sumkeys (where-is-internal 'gnus-article-read-summary-keys))
6480 parent agent draft)
6481 (define-key keymap "S" map)
6482 (define-key map [t] nil)
6483 (with-current-buffer gnus-article-current-summary
6484 (set-keymap-parent
6485 keymap
6486 (if (setq parent (keymap-parent gnus-article-mode-map))
6487 (prog1
6488 (setq parent (copy-keymap parent))
6489 (set-keymap-parent parent (current-local-map)))
6490 (current-local-map)))
6491 (set-keymap-parent map (key-binding "S"))
6492 (let (key def gnus-pick-mode)
6493 (while sumkeys
6494 (setq key (pop sumkeys))
6495 (cond ((and (vectorp key) (= (length key) 1)
6496 (consp (setq def (aref key 0)))
6497 (numberp (car def)) (numberp (cdr def)))
6498 (when (< (max (car def) (cdr def)) 128)
6499 (setq sumkeys
6500 (append (mapcar
6501 #'vector
6502 (nreverse (gnus-uncompress-range def)))
6503 sumkeys))))
6504 ((setq def (key-binding key))
6505 (unless (eq def 'undefined)
6506 (define-key keymap key def))))))
6507 (when (boundp 'gnus-agent-summary-mode)
6508 (setq agent gnus-agent-summary-mode))
6509 (when (boundp 'gnus-draft-mode)
6510 (setq draft gnus-draft-mode)))
6511 (with-temp-buffer
6512 (use-local-map keymap)
6513 (set (make-local-variable 'gnus-agent-summary-mode) agent)
6514 (set (make-local-variable 'gnus-draft-mode) draft)
6515 (describe-bindings prefix))
6516 (let ((item `((lambda (prefix)
6517 (with-current-buffer ,(current-buffer)
6518 (gnus-article-describe-bindings prefix)))
6519 ,prefix)))
6520 (with-current-buffer (if (fboundp 'help-buffer)
6521 (let (help-xref-following) (help-buffer))
6522 "*Help*") ;; Emacs 21
6523 (setq help-xref-stack-item item)))))
6525 (defun gnus-article-reply-with-original (&optional wide)
6526 "Start composing a reply mail to the current message.
6527 The text in the region will be yanked. If the region isn't active,
6528 the entire article will be yanked."
6529 (interactive)
6530 (let ((article (cdr gnus-article-current))
6531 contents)
6532 (if (not (gnus-region-active-p))
6533 (with-current-buffer gnus-summary-buffer
6534 (gnus-summary-reply (list (list article)) wide))
6535 (setq contents (buffer-substring (point) (mark t)))
6536 ;; Deactivate active regions.
6537 (when (and (boundp 'transient-mark-mode)
6538 transient-mark-mode)
6539 (setq mark-active nil))
6540 (with-current-buffer gnus-summary-buffer
6541 (gnus-summary-reply
6542 (list (list article contents)) wide)))))
6544 (defun gnus-article-wide-reply-with-original ()
6545 "Start composing a wide reply mail to the current message.
6546 The text in the region will be yanked. If the region isn't active,
6547 the entire article will be yanked."
6548 (interactive)
6549 (gnus-article-reply-with-original t))
6551 (defun gnus-article-followup-with-original ()
6552 "Compose a followup to the current article.
6553 The text in the region will be yanked. If the region isn't active,
6554 the entire article will be yanked."
6555 (interactive)
6556 (let ((article (cdr gnus-article-current))
6557 contents)
6558 (if (not (gnus-region-active-p))
6559 (with-current-buffer gnus-summary-buffer
6560 (gnus-summary-followup (list (list article))))
6561 (setq contents (buffer-substring (point) (mark t)))
6562 ;; Deactivate active regions.
6563 (when (and (boundp 'transient-mark-mode)
6564 transient-mark-mode)
6565 (setq mark-active nil))
6566 (with-current-buffer gnus-summary-buffer
6567 (gnus-summary-followup
6568 (list (list article contents)))))))
6570 (defun gnus-article-hide (&optional arg force)
6571 "Hide all the gruft in the current article.
6572 This means that signatures, cited text and (some) headers will be
6573 hidden.
6574 If given a prefix, show the hidden text instead."
6575 (interactive (append (gnus-article-hidden-arg) (list 'force)))
6576 (gnus-article-hide-headers arg)
6577 (gnus-article-hide-list-identifiers arg)
6578 (gnus-article-hide-citation-maybe arg force)
6579 (gnus-article-hide-signature arg))
6581 (defun gnus-article-maybe-highlight ()
6582 "Do some article highlighting if article highlighting is requested."
6583 (when (gnus-visual-p 'article-highlight 'highlight)
6584 (gnus-article-highlight-some)))
6586 (defun gnus-check-group-server ()
6587 ;; Make sure the connection to the server is alive.
6588 (unless (gnus-server-opened
6589 (gnus-find-method-for-group gnus-newsgroup-name))
6590 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
6591 (gnus-request-group gnus-newsgroup-name t)))
6593 (eval-when-compile
6594 (autoload 'nneething-get-file-name "nneething"))
6596 (defun gnus-request-article-this-buffer (article group)
6597 "Get an article and insert it into this buffer."
6598 (let (do-update-line sparse-header)
6599 (prog1
6600 (save-excursion
6601 (erase-buffer)
6602 (gnus-kill-all-overlays)
6603 (setq group (or group gnus-newsgroup-name))
6605 ;; Using `gnus-request-article' directly will insert the article into
6606 ;; `nntp-server-buffer' - so we'll save some time by not having to
6607 ;; copy it from the server buffer into the article buffer.
6609 ;; We only request an article by message-id when we do not have the
6610 ;; headers for it, so we'll have to get those.
6611 (when (stringp article)
6612 (gnus-read-header article))
6614 ;; If the article number is negative, that means that this article
6615 ;; doesn't belong in this newsgroup (possibly), so we find its
6616 ;; message-id and request it by id instead of number.
6617 (when (and (numberp article)
6618 gnus-summary-buffer
6619 (get-buffer gnus-summary-buffer)
6620 (gnus-buffer-exists-p gnus-summary-buffer))
6621 (with-current-buffer gnus-summary-buffer
6622 (let ((header (gnus-summary-article-header article)))
6623 (when (< article 0)
6624 (cond
6625 ((memq article gnus-newsgroup-sparse)
6626 ;; This is a sparse gap article.
6627 (setq do-update-line article)
6628 (setq article (mail-header-id header))
6629 (setq sparse-header (gnus-read-header article))
6630 (setq gnus-newsgroup-sparse
6631 (delq article gnus-newsgroup-sparse)))
6632 ((vectorp header)
6633 ;; It's a real article.
6634 (setq article (mail-header-id header)))
6635 (t
6636 ;; It is an extracted pseudo-article.
6637 (setq article 'pseudo)
6638 (gnus-request-pseudo-article header))))
6640 (let ((method (gnus-find-method-for-group
6641 gnus-newsgroup-name)))
6642 (when (and (eq (car method) 'nneething)
6643 (vectorp header))
6644 (let ((dir (nneething-get-file-name
6645 (mail-header-id header))))
6646 (when (and (stringp dir)
6647 (file-directory-p dir))
6648 (setq article 'nneething)
6649 (gnus-group-enter-directory dir))))))))
6651 (cond
6652 ;; Refuse to select canceled articles.
6653 ((and (numberp article)
6654 gnus-summary-buffer
6655 (get-buffer gnus-summary-buffer)
6656 (gnus-buffer-exists-p gnus-summary-buffer)
6657 (eq (cdr (with-current-buffer gnus-summary-buffer
6658 (assq article gnus-newsgroup-reads)))
6659 gnus-canceled-mark))
6660 nil)
6661 ;; We first check `gnus-original-article-buffer'.
6662 ((and (get-buffer gnus-original-article-buffer)
6663 (numberp article)
6664 (with-current-buffer gnus-original-article-buffer
6665 (and (equal (car gnus-original-article) group)
6666 (eq (cdr gnus-original-article) article))))
6667 ;; `insert-buffer-substring' would incorrectly use the
6668 ;; equivalent of string-make-multibyte which amount to decoding
6669 ;; with locale-coding-system, causing failure of
6670 ;; subsequent decoding.
6671 (insert (mm-string-to-multibyte
6672 (with-current-buffer gnus-original-article-buffer
6673 (buffer-substring (point-min) (point-max)))))
6674 'article)
6675 ;; Check the backlog.
6676 ((and gnus-keep-backlog
6677 (gnus-backlog-request-article group article (current-buffer)))
6678 'article)
6679 ;; Check asynchronous pre-fetch.
6680 ((gnus-async-request-fetched-article group article (current-buffer))
6681 (gnus-async-prefetch-next group article gnus-summary-buffer)
6682 (when (and (numberp article) gnus-keep-backlog)
6683 (gnus-backlog-enter-article group article (current-buffer)))
6684 'article)
6685 ;; Check the cache.
6686 ((and gnus-use-cache
6687 (numberp article)
6688 (gnus-cache-request-article article group))
6689 'article)
6690 ;; Check the agent cache.
6691 ((gnus-agent-request-article article group)
6692 'article)
6693 ;; Get the article and put into the article buffer.
6694 ((or (stringp article)
6695 (numberp article))
6696 (let ((gnus-override-method gnus-override-method)
6697 (methods (and (stringp article)
6698 gnus-refer-article-method))
6699 (backend (car (gnus-find-method-for-group
6700 gnus-newsgroup-name)))
6701 result
6702 (inhibit-read-only t))
6703 (if (or (not (listp methods))
6704 (and (symbolp (car methods))
6705 (assq (car methods) nnoo-definition-alist)))
6706 (setq methods (list methods)))
6707 (when (and (null gnus-override-method)
6708 methods)
6709 (setq gnus-override-method (pop methods)))
6710 (while (not result)
6711 (when (eq gnus-override-method 'current)
6712 (setq gnus-override-method
6713 (with-current-buffer gnus-summary-buffer
6714 gnus-current-select-method)))
6715 (erase-buffer)
6716 (gnus-kill-all-overlays)
6717 (let ((gnus-newsgroup-name group))
6718 (gnus-check-group-server))
6719 (cond
6720 ((gnus-request-article article group (current-buffer))
6721 (when (numberp article)
6722 (gnus-async-prefetch-next group article
6723 gnus-summary-buffer)
6724 (when gnus-keep-backlog
6725 (gnus-backlog-enter-article
6726 group article (current-buffer))))
6727 (setq result 'article))
6728 (methods
6729 (setq gnus-override-method (pop methods)))
6730 ((not (string-match "^400 "
6731 (nnheader-get-report backend)))
6732 ;; If we get 400 server disconnect, reconnect and
6733 ;; retry; otherwise, assume the article has expired.
6734 (setq result 'done))))
6735 (and (eq result 'article) 'article)))
6736 ;; It was a pseudo.
6737 (t article)))
6739 ;; Associate this article with the current summary buffer.
6740 (setq gnus-article-current-summary gnus-summary-buffer)
6742 ;; Take the article from the original article buffer
6743 ;; and place it in the buffer it's supposed to be in.
6744 (when (and (get-buffer gnus-article-buffer)
6745 (equal (buffer-name (current-buffer))
6746 (buffer-name (get-buffer gnus-article-buffer))))
6747 (save-excursion
6748 (if (get-buffer gnus-original-article-buffer)
6749 (set-buffer gnus-original-article-buffer)
6750 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
6751 (buffer-disable-undo)
6752 (setq major-mode 'gnus-original-article-mode)
6753 (setq buffer-read-only t))
6754 (let ((inhibit-read-only t))
6755 (erase-buffer)
6756 (insert-buffer-substring gnus-article-buffer))
6757 (setq gnus-original-article (cons group article)))
6759 ;; Decode charsets.
6760 (run-hooks 'gnus-article-decode-hook)
6761 ;; Mark article as decoded or not.
6762 (setq gnus-article-decoded-p gnus-article-decode-hook))
6764 ;; Update sparse articles.
6765 (when (and do-update-line
6766 (or (numberp article)
6767 (stringp article)))
6768 (let ((buf (current-buffer)))
6769 (set-buffer gnus-summary-buffer)
6770 (gnus-summary-update-article do-update-line sparse-header)
6771 (gnus-summary-goto-subject do-update-line nil t)
6772 (set-window-point (gnus-get-buffer-window (current-buffer) t)
6773 (point))
6774 (set-buffer buf))))))
6776 ;;;
6777 ;;; Article editing
6778 ;;;
6780 (defcustom gnus-article-edit-mode-hook nil
6781 "Hook run in article edit mode buffers."
6782 :group 'gnus-article-various
6783 :type 'hook)
6785 (defvar gnus-article-edit-done-function nil)
6787 (defvar gnus-article-edit-mode-map nil)
6789 ;; Should we be using derived.el for this?
6790 (unless gnus-article-edit-mode-map
6791 (setq gnus-article-edit-mode-map (make-keymap))
6792 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
6794 (gnus-define-keys gnus-article-edit-mode-map
6795 "\C-c?" describe-mode
6796 "\C-c\C-c" gnus-article-edit-done
6797 "\C-c\C-k" gnus-article-edit-exit
6798 "\C-c\C-f\C-t" message-goto-to
6799 "\C-c\C-f\C-o" message-goto-from
6800 "\C-c\C-f\C-b" message-goto-bcc
6801 ;;"\C-c\C-f\C-w" message-goto-fcc
6802 "\C-c\C-f\C-c" message-goto-cc
6803 "\C-c\C-f\C-s" message-goto-subject
6804 "\C-c\C-f\C-r" message-goto-reply-to
6805 "\C-c\C-f\C-n" message-goto-newsgroups
6806 "\C-c\C-f\C-d" message-goto-distribution
6807 "\C-c\C-f\C-f" message-goto-followup-to
6808 "\C-c\C-f\C-m" message-goto-mail-followup-to
6809 "\C-c\C-f\C-k" message-goto-keywords
6810 "\C-c\C-f\C-u" message-goto-summary
6811 "\C-c\C-f\C-i" message-insert-or-toggle-importance
6812 "\C-c\C-f\C-a" message-generate-unsubscribed-mail-followup-to
6813 "\C-c\C-b" message-goto-body
6814 "\C-c\C-i" message-goto-signature
6816 "\C-c\C-t" message-insert-to
6817 "\C-c\C-n" message-insert-newsgroups
6818 "\C-c\C-o" message-sort-headers
6819 "\C-c\C-e" message-elide-region
6820 "\C-c\C-v" message-delete-not-region
6821 "\C-c\C-z" message-kill-to-signature
6823 "\C-c\C-a" mml-attach-file
6824 "\C-a" message-beginning-of-line
6826 "\M-;" comment-region)
6828 (gnus-define-keys (gnus-article-edit-wash-map
6829 "\C-c\C-w" gnus-article-edit-mode-map)
6830 "f" gnus-article-edit-full-stops))
6832 (easy-menu-define
6833 gnus-article-edit-mode-field-menu gnus-article-edit-mode-map ""
6834 '("Field"
6835 ["Fetch To" message-insert-to t]
6836 ["Fetch Newsgroups" message-insert-newsgroups t]
6837 "----"
6838 ["To" message-goto-to t]
6839 ["From" message-goto-from t]
6840 ["Subject" message-goto-subject t]
6841 ["Cc" message-goto-cc t]
6842 ["Reply-To" message-goto-reply-to t]
6843 ["Summary" message-goto-summary t]
6844 ["Keywords" message-goto-keywords t]
6845 ["Newsgroups" message-goto-newsgroups t]
6846 ["Followup-To" message-goto-followup-to t]
6847 ["Mail-Followup-To" message-goto-mail-followup-to t]
6848 ["Distribution" message-goto-distribution t]
6849 ["Body" message-goto-body t]
6850 ["Signature" message-goto-signature t]))
6852 (define-derived-mode gnus-article-edit-mode message-mode "Article Edit"
6853 "Major mode for editing articles.
6854 This is an extended text-mode.
6857 (make-local-variable 'gnus-article-edit-done-function)
6858 (make-local-variable 'gnus-prev-winconf)
6859 (set (make-local-variable 'font-lock-defaults)
6860 '(message-font-lock-keywords t))
6861 (set (make-local-variable 'mail-header-separator) "")
6862 (set (make-local-variable 'gnus-article-edit-mode) t)
6863 (easy-menu-add message-mode-field-menu message-mode-map)
6864 (mml-mode)
6865 (setq buffer-read-only nil)
6866 (buffer-enable-undo)
6867 (widen))
6869 (defun gnus-article-edit (&optional force)
6870 "Edit the current article.
6871 This will have permanent effect only in mail groups.
6872 If FORCE is non-nil, allow editing of articles even in read-only
6873 groups."
6874 (interactive "P")
6875 (when (and (not force)
6876 (gnus-group-read-only-p))
6877 (error "The current newsgroup does not support article editing"))
6878 (gnus-article-date-original)
6879 (gnus-article-edit-article
6880 'ignore
6881 `(lambda (no-highlight)
6882 'ignore
6883 (gnus-summary-edit-article-done
6884 ,(or (mail-header-references gnus-current-headers) "")
6885 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
6887 (defun gnus-article-edit-article (start-func exit-func &optional quiet)
6888 "Start editing the contents of the current article buffer."
6889 (let ((winconf (current-window-configuration)))
6890 (set-buffer gnus-article-buffer)
6891 (let ((message-auto-save-directory
6892 ;; Don't associate the article buffer with a draft file.
6893 nil))
6894 (gnus-article-edit-mode))
6895 (funcall start-func)
6896 (set-buffer-modified-p nil)
6897 (gnus-configure-windows 'edit-article)
6898 (setq gnus-article-edit-done-function exit-func)
6899 (setq gnus-prev-winconf winconf)
6900 (unless quiet
6901 (gnus-message 6 "C-c C-c to end edits"))))
6903 (defun gnus-article-edit-done (&optional arg)
6904 "Update the article edits and exit."
6905 (interactive "P")
6906 (let ((func gnus-article-edit-done-function)
6907 (buf (current-buffer))
6908 (start (window-start))
6909 (p (point))
6910 (winconf gnus-prev-winconf))
6911 (widen) ;; Widen it in case that users narrowed the buffer.
6912 (funcall func arg)
6913 (set-buffer buf)
6914 ;; The cache and backlog have to be flushed somewhat.
6915 (when gnus-keep-backlog
6916 (gnus-backlog-remove-article
6917 (car gnus-article-current) (cdr gnus-article-current)))
6918 ;; Flush original article as well.
6919 (when (get-buffer gnus-original-article-buffer)
6920 (with-current-buffer gnus-original-article-buffer
6921 (setq gnus-original-article nil)))
6922 (when gnus-use-cache
6923 (gnus-cache-update-article
6924 (car gnus-article-current) (cdr gnus-article-current)))
6925 ;; We remove all text props from the article buffer.
6926 (kill-all-local-variables)
6927 (set-text-properties (point-min) (point-max) nil)
6928 (gnus-article-mode)
6929 (set-window-configuration winconf)
6930 (set-buffer buf)
6931 (set-window-start (get-buffer-window buf) start)
6932 (set-window-point (get-buffer-window buf) (point)))
6933 (gnus-summary-show-article))
6935 (defun gnus-article-edit-exit ()
6936 "Exit the article editing without updating."
6937 (interactive)
6938 (when (or (not (buffer-modified-p))
6939 (yes-or-no-p "Article modified; kill anyway? "))
6940 (let ((curbuf (current-buffer))
6941 (p (point))
6942 (window-start (window-start)))
6943 (erase-buffer)
6944 (if (gnus-buffer-live-p gnus-original-article-buffer)
6945 (insert-buffer-substring gnus-original-article-buffer))
6946 (let ((winconf gnus-prev-winconf))
6947 (kill-all-local-variables)
6948 (gnus-article-mode)
6949 (set-window-configuration winconf)
6950 ;; Tippy-toe some to make sure that point remains where it was.
6951 (save-current-buffer
6952 (set-buffer curbuf)
6953 (set-window-start (get-buffer-window (current-buffer)) window-start)
6954 (goto-char p))))
6955 (gnus-summary-show-article)))
6957 (defun gnus-article-edit-full-stops ()
6958 "Interactively repair spacing at end of sentences."
6959 (interactive)
6960 (save-excursion
6961 (goto-char (point-min))
6962 (search-forward-regexp "^$" nil t)
6963 (let ((case-fold-search nil))
6966 ;;;
6967 ;;; Article highlights
6968 ;;;
6970 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
6972 ;;; Internal Variables:
6974 (defcustom gnus-button-url-regexp
6975 (concat
6979 (if (string-match "[[:digit:]]" "1") ;; Support POSIX?
6981 (punct "!?:;.,"))
6982 (concat
6984 ;; Match paired parentheses, e.g. in Wikipedia URLs:
6985 ;; http://thread.gmane.org/47B4E3B2.3050402@gmail.com
6986 "[" chars punct "]+" "(" "[" chars punct "]+" "[" chars "]*)" "[" chars "]*"
6988 "[" chars punct "]+" "[" chars "]"
6990 (concat ;; XEmacs 21.4 doesn't support POSIX.
6994 "Regular expression that matches URLs."
6995 :group 'gnus-article-buttons
6996 :type 'regexp)
6998 (defcustom gnus-button-valid-fqdn-regexp
6999 message-valid-fqdn-regexp
7000 "Regular expression that matches a valid FQDN."
7001 :version "22.1"
7002 :group 'gnus-article-buttons
7003 :type 'regexp)
7005 ;; Regexp suggested by Felix Wiemann in <87oeuomcz9.fsf@news2.ososo.de>
7006 (defcustom gnus-button-valid-localpart-regexp
7008 "Regular expression that matches a localpart of mail addresses or MIDs."
7009 :version "22.1"
7010 :group 'gnus-article-buttons
7011 :type 'regexp)
7013 (defcustom gnus-button-man-handler 'manual-entry
7014 "Function to use for displaying man pages.
7015 The function must take at least one argument with a string naming the
7016 man page."
7017 :version "22.1"
7018 :type '(choice (function-item :tag "Man" manual-entry)
7019 (function-item :tag "Woman" woman)
7020 (function :tag "Other"))
7021 :group 'gnus-article-buttons)
7023 (defcustom gnus-ctan-url "http://tug.ctan.org/tex-archive/"
7024 "Top directory of a CTAN \(Comprehensive TeX Archive Network\) archive.
7025 If the default site is too slow, try to find a CTAN mirror, see
7026 <URL:http://tug.ctan.org/tex-archive/CTAN.sites?action=/index.html>. See also
7027 the variable `gnus-button-handle-ctan'."
7028 :version "22.1"
7029 :group 'gnus-article-buttons
7030 :link '(custom-manual "(gnus)Group Parameters")
7031 :type '(choice (const "http://www.tex.ac.uk/tex-archive/")
7032 (const "http://tug.ctan.org/tex-archive/")
7033 (const "http://www.dante.de/CTAN/")
7034 (string :tag "Other")))
7036 (defcustom gnus-button-ctan-handler 'browse-url
7037 "Function to use for displaying CTAN links.
7038 The function must take one argument, the string naming the URL."
7039 :version "22.1"
7040 :type '(choice (function-item :tag "Browse Url" browse-url)
7041 (function :tag "Other"))
7042 :group 'gnus-article-buttons)
7045 "Bogus strings removed from CTAN URLs."
7046 :version "22.1"
7047 :group 'gnus-article-buttons
7049 (regexp :tag "Other")))
7051 (defcustom gnus-button-ctan-directory-regexp
7052 (regexp-opt
7053 (list "archive-tools" "biblio" "bibliography" "digests" "documentation"
7054 "dviware" "fonts" "graphics" "help" "indexing" "info" "language"
7055 "languages" "macros" "nonfree" "obsolete" "support" "systems"
7056 "tds" "tools" "usergrps" "web") t)
7057 "Regular expression for ctan directories.
7058 It should match all directories in the top level of `gnus-ctan-url'."
7059 :version "22.1"
7060 :group 'gnus-article-buttons
7061 :type 'regexp)
7063 (defcustom gnus-button-mid-or-mail-regexp
7065 gnus-button-valid-fqdn-regexp
7067 "Regular expression that matches a message ID or a mail address."
7068 :version "22.1"
7069 :group 'gnus-article-buttons
7070 :type 'regexp)
7072 (defcustom gnus-button-prefer-mid-or-mail 'gnus-button-mid-or-mail-heuristic
7074 Strings like this can be either a message ID or a mail address. If it is one
7075 of the symbols `mid' or `mail', Gnus will always assume that the string is a
7076 message ID or a mail address, respectively. If this variable is set to the
7077 symbol `ask', always query the user what do do. If it is a function, this
7078 function will be called with the string as its only argument. The function
7079 must return `mid', `mail', `invalid' or `ask'."
7080 :version "22.1"
7081 :group 'gnus-article-buttons
7082 :type '(choice (function-item :tag "Heuristic function"
7083 gnus-button-mid-or-mail-heuristic)
7084 (const ask)
7085 (const mid)
7086 (const mail)))
7088 (defcustom gnus-button-mid-or-mail-heuristic-alist
7090 (-10.0 . "#")
7093 (-5.0 . "@[Nn][Ee][Ww][Ss]") ;; /\@news/i
7094 (-5.0 . "@.*[Dd][Ii][Aa][Ll][Uu][Pp]") ;; /\@.*dialup/i;
7095 (-1.0 . "^[^a-z]+@")
7096 ;;
7098 (-5.0 . "[a-z].*[A-Z].*[a-z].*[A-Z].*@") ;; "([a-z].*[A-Z].*){2,}\@"
7099 (-3.0 . "[A-Z][A-Z][a-z][a-z].*@")
7101 ;;
7102 (-2.0 . "^[0-9]")
7103 (-1.0 . "^[0-9][0-9]")
7104 ;;
7105 ;; -3.0 /^[0-9][0-9a-fA-F]{2,2}/;
7106 (-3.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7107 ;; -5.0 /^[0-9][0-9a-fA-F]{3,3}/;
7108 (-5.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7109 ;;
7110 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][^0-9].*@") ;; "[0-9]{5,}.*\@"
7111 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][^0-9].*@")
7112 ;; "[0-9]{8,}.*\@"
7113 (-3.0
7114 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].*@")
7115 ;; "[0-9]{12,}.*\@"
7116 ;; compensation for TDMA dated mail addresses:
7117 (25.0 . "-dated-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]+.*@")
7118 ;;
7120 (-20.0 . "^slrn")
7121 (-20.0 . "^Pine")
7123 (-20.0 . "_-_") ;; Subject change in thread
7124 ;;
7128 ;;
7129 ;; (5.0 . "") ;; $local_part_len <= 7
7130 (10.0 . "^[^0-9]+@")
7131 (3.0 . "^[^0-9]+[0-9][0-9]?[0-9]?@")
7132 ;; ^[^0-9]+[0-9]{1,3}\@ digits only at end of local part
7133 (3.0 . "\@stud")
7134 ;;
7135 (2.0 . "[a-z][a-z][._-][A-Z][a-z].*@")
7136 ;;
7137 (0.5 . "^[A-Z][a-z]")
7138 (0.5 . "^[A-Z][a-z][a-z]")
7139 (1.5 . "^[A-Z][a-z][A-Z][a-z][^a-z]") ;; ^[A-Z][a-z]{3,3}
7140 (2.0 . "^[A-Z][a-z][A-Z][a-z][a-z][^a-z]")) ;; ^[A-Z][a-z]{4,4}
7141 "An alist of \(RATE . REGEXP\) pairs for `gnus-button-mid-or-mail-heuristic'.
7143 A negative RATE indicates a message IDs, whereas a positive indicates a mail
7144 address. The REGEXP is processed with `case-fold-search' set to nil."
7145 :version "22.1"
7146 :group 'gnus-article-buttons
7147 :type '(repeat (cons (number :tag "Rate")
7148 (regexp :tag "Regexp"))))
7150 (defun gnus-button-mid-or-mail-heuristic (mid-or-mail)
7151 "Guess whether MID-OR-MAIL is a message ID or a mail address.
7152 Returns `mid' if MID-OR-MAIL is a message IDs, `mail' if it's a mail
7153 address, `ask' if unsure and `invalid' if the string is invalid."
7154 (let ((case-fold-search nil)
7155 (list gnus-button-mid-or-mail-heuristic-alist)
7156 (result 0) rate regexp lpartlen elem)
7157 (setq lpartlen
7159 (gnus-message 8 "`%s', length of local part=`%s'." mid-or-mail lpartlen)
7160 ;; Certain special cases...
7161 (when (string-match
7162 (concat
7166 mid-or-mail)
7167 (gnus-message 8 "`%s' is a known mail address." mid-or-mail)
7168 (setq result 'mail))
7170 (gnus-message 8 "`%s' is invalid." mid-or-mail)
7171 (setq result 'invalid))
7172 ;; Nothing more to do, if result is not a number here...
7173 (when (numberp result)
7174 (while list
7175 (setq elem (car list)
7176 rate (car elem)
7177 regexp (cdr elem)
7178 list (cdr list))
7179 (when (string-match regexp mid-or-mail)
7180 (setq result (+ result rate))
7181 (gnus-message
7182 9 "`%s' matched `%s', rate `%s', result `%s'."
7183 mid-or-mail regexp rate result)))
7184 (when (<= lpartlen 7)
7185 (setq result (+ result 5.0))
7186 (gnus-message 9 "`%s' matched (<= lpartlen 7), result `%s'."
7187 mid-or-mail result))
7188 (when (>= lpartlen 12)
7189 (gnus-message 9 "`%s' matched (>= lpartlen 12)" mid-or-mail)
7190 (cond
7191 ((string-match "[0-9][^0-9]+[0-9].*@" mid-or-mail)
7192 ;; Long local part should contain realname if e-mail address,
7193 ;; too many digits: message-id.
7194 ;; $score -= 5.0 + 0.1 * $local_part_len;
7195 (setq rate (* -1.0 (+ 5.0 (* 0.1 lpartlen))))
7196 (setq result (+ result rate))
7197 (gnus-message
7198 9 "Many digits in `%s', rate `%s', result `%s'."
7199 mid-or-mail rate result))
7200 ((string-match "[^aeiouy][^aeiouy][^aeiouy][^aeiouy]+.*\@"
7201 mid-or-mail)
7202 ;; Too few vowels [^aeiouy]{4,}.*\@
7203 (setq result (+ result -5.0))
7204 (gnus-message
7205 9 "Few vowels in `%s', rate `%s', result `%s'."
7206 mid-or-mail -5.0 result))
7207 (t
7208 (setq result (+ result 5.0))
7209 (gnus-message
7210 9 "`%s', rate `%s', result `%s'." mid-or-mail 5.0 result)))))
7211 (gnus-message 8 "`%s': Final rate is `%s'." mid-or-mail result)
7212 ;; Maybe we should make this a customizable alist: (condition . 'result)
7213 (cond
7214 ((symbolp result) result)
7215 ;; Now convert number into proper results:
7216 ((< result -10.0) 'mid)
7217 ((> result 10.0) 'mail)
7218 (t 'ask))))
7220 (defun gnus-button-handle-mid-or-mail (mid-or-mail)
7221 (let* ((pref gnus-button-prefer-mid-or-mail) guessed
7222 (url-mid (concat "news" ":" mid-or-mail))
7223 (url-mailto (concat "mailto" ":" mid-or-mail)))
7224 (gnus-message 9 "mid-or-mail=%s" mid-or-mail)
7225 (when (fboundp pref)
7226 (setq guessed
7227 ;; get rid of surrounding angles...
7228 (funcall pref
7230 (if (or (eq 'mid guessed) (eq 'mail guessed))
7231 (setq pref guessed)
7232 (setq pref 'ask)))
7233 (if (eq pref 'ask)
7234 (save-window-excursion
7235 (if (y-or-n-p (concat "Is <" mid-or-mail "> a mail address? "))
7236 (setq pref 'mail)
7237 (setq pref 'mid))))
7238 (cond ((eq pref 'mid)
7239 (gnus-message 8 "calling `gnus-button-handle-news' %s" url-mid)
7240 (gnus-button-handle-news url-mid))
7241 ((eq pref 'mail)
7242 (gnus-message 8 "calling `gnus-url-mailto' %s" url-mailto)
7243 (gnus-url-mailto url-mailto))
7244 (t (gnus-message 3 "Invalid string.")))))
7246 (defun gnus-button-handle-custom (fun arg)
7247 "Call function FUN on argument ARG.
7248 Both FUN and ARG are supposed to be strings. ARG will be passed
7249 as a symbol to FUN."
7250 (funcall (intern fun)
7251 (if (string-match "^customize-apropos" fun)
7252 arg
7253 (intern arg))))
7257 ;; FIXME: Maybe we should merge some of the functions that do quite similar
7258 ;; stuff?
7260 (defun gnus-button-handle-describe-function (url)
7261 "Call `describe-function' when pushing the corresponding URL button."
7262 (describe-function
7263 (intern
7264 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7266 (defun gnus-button-handle-describe-variable (url)
7267 "Call `describe-variable' when pushing the corresponding URL button."
7268 (describe-variable
7269 (intern
7270 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7272 (defun gnus-button-handle-symbol (url)
7273 "Display help on variable or function.
7274 Calls `describe-variable' or `describe-function'."
7275 (let ((sym (intern url)))
7276 (cond
7277 ((fboundp sym) (describe-function sym))
7278 ((boundp sym) (describe-variable sym))
7279 (t (gnus-message 3 "`%s' is not a known function of variable." url)))))
7281 (defun gnus-button-handle-describe-key (url)
7282 "Call `describe-key' when pushing the corresponding URL button."
7283 (let* ((key-string
7284 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))
7285 (keys (ignore-errors (eval `(kbd ,key-string)))))
7286 (if keys
7287 (describe-key keys)
7288 (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
7290 (defun gnus-button-handle-apropos (url)
7291 "Call `apropos' when pushing the corresponding URL button."
7292 (apropos (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7294 (defun gnus-button-handle-apropos-command (url)
7295 "Call `apropos' when pushing the corresponding URL button."
7296 (apropos-command
7297 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7299 (defun gnus-button-handle-apropos-variable (url)
7300 "Call `apropos' when pushing the corresponding URL button."
7301 (funcall
7302 (if (fboundp 'apropos-variable) 'apropos-variable 'apropos)
7303 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7305 (defun gnus-button-handle-apropos-documentation (url)
7306 "Call `apropos' when pushing the corresponding URL button."
7307 (funcall
7308 (if (fboundp 'apropos-documentation) 'apropos-documentation 'apropos)
7309 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7311 (defun gnus-button-handle-library (url)
7312 "Call `locate-library' when pushing the corresponding URL button."
7313 (gnus-message 9 "url=`%s'" url)
7314 (let* ((lib (locate-library url))
7315 (file (gnus-replace-in-string (or lib "") "\.elc" ".el")))
7316 (if (not lib)
7317 (gnus-message 1 "Cannot locale library `%s'." url)
7318 (find-file-read-only file))))
7320 (defun gnus-button-handle-ctan (url)
7321 "Call `browse-url' when pushing a CTAN URL button."
7322 (funcall
7323 gnus-button-ctan-handler
7324 (concat
7325 gnus-ctan-url
7326 (gnus-replace-in-string url gnus-button-handle-ctan-bogus-regexp ""))))
7328 (defcustom gnus-button-tex-level 5
7329 "*Integer that says how many TeX-related buttons Gnus will show.
7330 The higher the number, the more buttons will appear and the more false
7331 positives are possible. Note that you can set this variable local to
7332 specific groups. Setting it higher in TeX groups is probably a good idea.
7333 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
7334 how to set variables in specific groups."
7335 :version "22.1"
7336 :group 'gnus-article-buttons
7337 :link '(custom-manual "(gnus)Group Parameters")
7338 :type 'integer)
7340 (defcustom gnus-button-man-level 5
7341 "*Integer that says how many man-related buttons Gnus will show.
7342 The higher the number, the more buttons will appear and the more false
7343 positives are possible. Note that you can set this variable local to
7344 specific groups. Setting it higher in Unix groups is probably a good idea.
7345 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
7346 how to set variables in specific groups."
7347 :version "22.1"
7348 :group 'gnus-article-buttons
7349 :link '(custom-manual "(gnus)Group Parameters")
7350 :type 'integer)
7352 (defcustom gnus-button-emacs-level 5
7353 "*Integer that says how many emacs-related buttons Gnus will show.
7354 The higher the number, the more buttons will appear and the more false
7355 positives are possible. Note that you can set this variable local to
7356 specific groups. Setting it higher in Emacs or Gnus related groups is
7357 probably a good idea. See Info node `(gnus)Group Parameters' and the variable
7358 `gnus-parameters' on how to set variables in specific groups."
7359 :version "22.1"
7360 :group 'gnus-article-buttons
7361 :link '(custom-manual "(gnus)Group Parameters")
7362 :type 'integer)
7364 (defcustom gnus-button-message-level 5
7365 "*Integer that says how many buttons for news or mail messages will appear.
7366 The higher the number, the more buttons will appear and the more false
7367 positives are possible."
7368 ;; mail addresses, MIDs, URLs for news, ...
7369 :version "22.1"
7370 :group 'gnus-article-buttons
7371 :type 'integer)
7373 (defcustom gnus-button-browse-level 5
7374 "*Integer that says how many buttons for browsing will appear.
7375 The higher the number, the more buttons will appear and the more false
7376 positives are possible."
7377 ;; stuff handled by `browse-url' or `gnus-button-embedded-url'
7378 :version "22.1"
7379 :group 'gnus-article-buttons
7380 :type 'integer)
7382 (defcustom gnus-button-alist
7384 0 (>= gnus-button-message-level 0) gnus-button-handle-news 3)
7387 0 t gnus-button-handle-news 2)
7389 1 (>= gnus-button-message-level 0) gnus-button-fetch-group 5)
7391 0 (>= gnus-button-message-level 0) gnus-button-fetch-group 3)
7392 ;; RFC 2392 (Don't allow `/' in domain part --> CID)
7394 0 (>= gnus-button-message-level 0) gnus-button-message-id 2)
7396 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7398 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7400 0 (>= gnus-button-message-level 0) gnus-url-mailto 2)
7401 ;; RFC 2368 (The mailto URL scheme)
7403 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7405 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7406 ;; CTAN
7408 gnus-button-ctan-directory-regexp
7410 0 (>= gnus-button-tex-level 1) gnus-button-handle-ctan 1)
7412 gnus-button-ctan-directory-regexp
7414 1 (>= gnus-button-tex-level 6) gnus-button-handle-ctan 1)
7415 ((concat
7417 gnus-button-ctan-directory-regexp
7419 1 (>= gnus-button-tex-level 8) gnus-button-handle-ctan 1)
7420 ;; Info Konqueror style <info:/foo/bar baz>.
7421 ;; Must come before " Gnus home-grown style".
7423 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7424 ;; Info, Gnus home-grown style (deprecated) <info://foo/bar+baz>
7426 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7427 ;; Info GNOME style <info:foo#bar_baz>
7429 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-gnome 1)
7430 ;; Info KDE style <info:(foo)bar baz>
7432 1 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-kde 2)
7434 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 2)
7435 ("\\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,]*\\)\\)?"
7436 ;; Info links like `C-h i d m Gnus RET' or `C-h i d m Gnus RET i partial RET'
7437 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-keystrokes 0)
7438 ;; This is custom
7440 (>= gnus-button-emacs-level 1) gnus-button-handle-custom 1 2)
7441 ;; Emacs help commands
7443 ;; regexp doesn't match arguments containing ` '.
7444 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos 1)
7446 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-command 1)
7448 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-variable 1)
7450 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-documentation 1)
7451 ;; The following entries may lead to many false positives so don't enable
7452 ;; them by default (use a high button level).
7454 ;; Exclude [.?] for URLs in gmane.emacs.cvs
7455 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7457 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7459 0 (>= gnus-button-emacs-level 8) gnus-button-handle-symbol 1)
7461 0 (>= gnus-button-emacs-level 9) gnus-button-handle-symbol 1)
7463 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-variable 1)
7465 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-function 1)
7467 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
7469 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
7471 ;; Unlike the other regexps we really have to require quoting
7472 ;; here to determine where it ends.
7473 1 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
7474 ;; This is how URLs _should_ be embedded in text (RFC 1738, RFC 2396)...
7476 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7477 ;; RFC 2396 (2.4.3., delims) ...
7479 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7480 ;; Raw URLs.
7481 (gnus-button-url-regexp
7482 0 (>= gnus-button-browse-level 0) browse-url 0)
7483 ;; man pages
7485 0 (and (>= gnus-button-man-level 1) (< gnus-button-man-level 3))
7486 gnus-button-handle-man 1)
7487 ;; more man pages: resolv.conf(5), iso_8859-1(7), xterm(1x)
7489 0 (and (>= gnus-button-man-level 3) (< gnus-button-man-level 5))
7490 gnus-button-handle-man 1)
7491 ;; even more: Apache::PerlRun(3pm), PDL::IO::FastRaw(3pm),
7492 ;; SoWWWAnchor(3iv), XSelectInput(3X11), X(1), X(7)
7494 0 (>= gnus-button-man-level 5) gnus-button-handle-man 1)
7495 ;; Recognizing patches to .el files. This is somewhat obscure,
7496 ;; but considering the percentage of Gnus users who hack Emacs
7497 ;; Lisp files...
7499 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7501 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7502 ;; MID or mail: To avoid too many false positives we don't try to catch
7503 ;; all kind of allowed MIDs or mail addresses. Domain part must contain
7504 ;; at least one dot. TLD must contain two or three chars or be a know TLD
7505 ;; (info|name|...). Put this entry near the _end_ of `gnus-button-alist'
7506 ;; so that non-ambiguous entries (see above) match first.
7507 (gnus-button-mid-or-mail-regexp
7508 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1))
7509 "*Alist of regexps matching buttons in article bodies.
7511 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
7512 REGEXP: is the string (case insensitive) matching text around the button (can
7513 also be Lisp expression evaluating to a string),
7514 BUTTON: is the number of the regexp grouping actually matching the button,
7515 FORM: is a Lisp expression which must eval to true for the button to
7516 be added,
7517 CALLBACK: is the function to call when the user push this button, and each
7518 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
7520 CALLBACK can also be a variable, in that case the value of that
7521 variable it the real callback function."
7522 :group 'gnus-article-buttons
7523 :type '(repeat (list (choice regexp variable sexp)
7524 (integer :tag "Button")
7525 (sexp :tag "Form")
7526 (function :tag "Callback")
7527 (repeat :tag "Par"
7528 :inline t
7529 (integer :tag "Regexp group")))))
7530 (put 'gnus-button-alist 'risky-local-variable t)
7532 (defcustom gnus-header-button-alist
7534 0 (>= gnus-button-message-level 0) gnus-button-message-id 0)
7536 1 (>= gnus-button-message-level 0) gnus-button-reply 1)
7538 0 (>= gnus-button-message-level 0) gnus-msg-mail 0)
7539 ("^X-[Uu][Rr][Ll]:" gnus-button-url-regexp
7540 0 (>= gnus-button-browse-level 0) browse-url 0)
7541 ("^Subject:" gnus-button-url-regexp
7542 0 (>= gnus-button-browse-level 0) browse-url 0)
7543 ("^[^:]+:" gnus-button-url-regexp
7544 0 (>= gnus-button-browse-level 0) browse-url 0)
7545 ("^OpenPGP:.*url=" gnus-button-url-regexp
7546 0 (>= gnus-button-browse-level 0) gnus-button-openpgp 0)
7548 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7550 1 (>= gnus-button-message-level 0) gnus-button-message-id 4))
7551 "*Alist of headers and regexps to match buttons in article heads.
7553 This alist is very similar to `gnus-button-alist', except that each
7554 alist has an additional HEADER element first in each entry:
7556 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
7558 HEADER is a regexp to match a header. For a fuller explanation, see
7559 `gnus-button-alist'."
7560 :group 'gnus-article-buttons
7561 :group 'gnus-article-headers
7562 :type '(repeat (list (regexp :tag "Header")
7563 (choice regexp variable)
7564 (integer :tag "Button")
7565 (sexp :tag "Form")
7566 (function :tag "Callback")
7567 (repeat :tag "Par"
7568 :inline t
7569 (integer :tag "Regexp group")))))
7570 (put 'gnus-header-button-alist 'risky-local-variable t)
7572 ;;; Commands:
7574 (defun gnus-article-push-button (event)
7575 "Check text under the mouse pointer for a callback function.
7576 If the text under the mouse pointer has a `gnus-callback' property,
7577 call it with the value of the `gnus-data' text property."
7578 (interactive "e")
7579 (set-buffer (window-buffer (posn-window (event-start event))))
7580 (let* ((pos (posn-point (event-start event)))
7581 (data (get-text-property pos 'gnus-data))
7582 (fun (get-text-property pos 'gnus-callback)))
7583 (goto-char pos)
7584 (when fun
7585 (funcall fun data))))
7587 (defun gnus-article-press-button ()
7588 "Check text at point for a callback function.
7589 If the text at point has a `gnus-callback' property,
7590 call it with the value of the `gnus-data' text property."
7591 (interactive)
7592 (let ((data (get-text-property (point) 'gnus-data))
7593 (fun (get-text-property (point) 'gnus-callback)))
7594 (when fun
7595 (funcall fun data))))
7597 (defun gnus-article-highlight (&optional force)
7598 "Highlight current article.
7599 This function calls `gnus-article-highlight-headers',
7600 `gnus-article-highlight-citation',
7601 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7602 do the highlighting. See the documentation for those functions."
7603 (interactive (list 'force))
7604 (gnus-article-highlight-headers)
7605 (gnus-article-highlight-citation force)
7606 (gnus-article-highlight-signature)
7607 (gnus-article-add-buttons force)
7608 (gnus-article-add-buttons-to-head))
7610 (defun gnus-article-highlight-some (&optional force)
7611 "Highlight current article.
7612 This function calls `gnus-article-highlight-headers',
7613 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7614 do the highlighting. See the documentation for those functions."
7615 (interactive (list 'force))
7616 (gnus-article-highlight-headers)
7617 (gnus-article-highlight-signature)
7618 (gnus-article-add-buttons))
7620 (defun gnus-article-highlight-headers ()
7621 "Highlight article headers as specified by `gnus-header-face-alist'."
7622 (interactive)
7623 (gnus-with-article-headers
7624 (let (regexp header-face field-face from hpoints fpoints)
7625 (dolist (entry gnus-header-face-alist)
7626 (goto-char (point-min))
7628 (if (string-equal "" (nth 0 entry))
7630 (nth 0 entry))
7632 header-face (nth 1 entry)
7633 field-face (nth 2 entry))
7634 (while (and (re-search-forward regexp nil t)
7635 (not (eobp)))
7636 (beginning-of-line)
7637 (setq from (point))
7638 (unless (search-forward ":" nil t)
7639 (forward-char 1))
7640 (when (and header-face
7641 (not (memq (point) hpoints)))
7642 (push (point) hpoints)
7643 (gnus-put-text-property from (point) 'face header-face))
7644 (when (and field-face
7645 (not (memq (setq from (point)) fpoints)))
7646 (push from fpoints)
7648 (forward-char -2)
7649 (goto-char (point-max)))
7650 (gnus-put-text-property from (point) 'face field-face)))))))
7652 (defun gnus-article-highlight-signature ()
7653 "Highlight the signature in an article.
7654 It does this by highlighting everything after
7655 `gnus-signature-separator' using the face `gnus-signature'."
7656 (interactive)
7657 (gnus-with-article-buffer
7658 (let ((inhibit-point-motion-hooks t))
7659 (save-restriction
7660 (when (and gnus-signature-face
7661 (gnus-article-narrow-to-signature))
7662 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max) nil t)
7663 'face gnus-signature-face)
7664 (widen)
7665 (gnus-article-search-signature)
7666 (let ((start (match-beginning 0))
7667 (end (set-marker (make-marker) (1+ (match-end 0)))))
7668 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
7669 end)))))))
7671 (defun gnus-button-in-region-p (b e prop)
7672 "Say whether PROP exists in the region."
7673 (text-property-not-all b e prop nil))
7675 (defun gnus-article-add-buttons (&optional force)
7676 "Find external references in the article and make buttons of them.
7678 specified by `gnus-button-alist'."
7679 (interactive (list 'force))
7680 (gnus-with-article-buffer
7681 (let ((inhibit-point-motion-hooks t)
7682 (case-fold-search t)
7683 (alist gnus-button-alist)
7684 beg entry regexp)
7685 ;; Remove all old markers.
7686 (let (marker entry new-list)
7687 (while (setq marker (pop gnus-button-marker-list))
7688 (if (or (< marker (point-min)) (>= marker (point-max)))
7689 (push marker new-list)
7690 (goto-char marker)
7691 (when (setq entry (gnus-button-entry))
7692 (put-text-property (match-beginning (nth 1 entry))
7693 (match-end (nth 1 entry))
7694 'gnus-callback nil))
7695 (set-marker marker nil)))
7696 (setq gnus-button-marker-list new-list))
7697 ;; We skip the headers.
7698 (article-goto-body)
7699 (setq beg (point))
7700 (while (setq entry (pop alist))
7701 (setq regexp (eval (car entry)))
7702 (goto-char beg)
7703 (while (re-search-forward regexp nil t)
7704 (let ((start (match-beginning (nth 1 entry)))
7705 (end (match-end (nth 1 entry)))
7706 (from (match-beginning 0)))
7707 (when (and (or (eq t (nth 2 entry))
7708 (eval (nth 2 entry)))
7709 (not (gnus-button-in-region-p
7710 start end 'gnus-callback)))
7711 ;; That optional form returned non-nil, so we add the
7712 ;; button.
7713 (setq from (set-marker (make-marker) from))
7714 (push from gnus-button-marker-list)
7715 (unless (and (eq (car entry) 'gnus-button-url-regexp)
7716 (gnus-article-extend-url-button from start end))
7717 (gnus-article-add-button start end
7718 'gnus-button-push from)))))))))
7720 (defun gnus-article-extend-url-button (beg start end)
7721 "Extend url button if url is folded into two or more lines.
7722 Return non-nil if button is extended. BEG is a marker that points to
7723 the beginning position of a text containing url. START and END are
7724 the endpoints of a url button before it is extended. The concatenated
7725 url is put as the `gnus-button-url' overlay property on the button."
7726 (let ((opoint (point))
7727 (points (list start end))
7728 url delim regexp)
7729 (prog1
7730 (when (and (progn
7731 (goto-char end)
7733 (progn
7734 (goto-char start)
7735 (string-match
7737 (buffer-substring (point-at-bol) start)))
7738 (progn
7739 (setq url (list (buffer-substring start end))
7741 (beginning-of-line)
7742 (setq regexp (concat
7743 (when (and (looking-at
7744 message-cite-prefix-regexp)
7745 (< (match-end 0) start))
7746 (regexp-quote (match-string 0)))
7747 "\
7750 (while (progn
7751 (forward-line 1)
7752 (and (looking-at regexp)
7753 (prog1
7754 (match-beginning 1)
7755 (push (or (match-string 2)
7756 (match-string 1))
7757 url)
7758 (push (setq end (or (match-end 2)
7759 (match-end 1)))
7760 points)
7761 (push (or (match-beginning 2)
7762 (match-beginning 1))
7763 points)))))
7764 (match-beginning 2)))
7765 (let (gnus-article-mouse-face widget-mouse-face)
7766 (while points
7767 (gnus-article-add-button (pop points) (pop points)
7768 'gnus-button-push beg)))
7769 (let ((overlay (gnus-make-overlay start end)))
7770 (gnus-overlay-put overlay 'evaporate t)
7771 (gnus-overlay-put overlay 'gnus-button-url
7772 (list (mapconcat 'identity (nreverse url) "")))
7773 (when gnus-article-mouse-face
7774 (gnus-overlay-put overlay 'mouse-face gnus-article-mouse-face)))
7775 t)
7776 (goto-char opoint))))
7778 ;; Add buttons to the head of an article.
7779 (defun gnus-article-add-buttons-to-head ()
7780 "Add buttons to the head of the article."
7781 (interactive)
7782 (gnus-with-article-headers
7783 (let (beg end)
7784 (dolist (entry gnus-header-button-alist)
7785 ;; Each alist entry.
7786 (goto-char (point-min))
7787 (while (re-search-forward (car entry) nil t)
7788 ;; Each header matching the entry.
7789 (setq beg (match-beginning 0))
7791 (match-beginning 0))
7792 (point-max)))
7793 (goto-char beg)
7794 (while (re-search-forward (eval (nth 1 entry)) end t)
7795 ;; Each match within a header.
7796 (let* ((entry (cdr entry))
7797 (start (match-beginning (nth 1 entry)))
7798 (end (match-end (nth 1 entry)))
7799 (form (nth 2 entry)))
7800 (goto-char (match-end 0))
7801 (when (eval form)
7802 (gnus-article-add-button
7803 start end (nth 3 entry)
7804 (buffer-substring (match-beginning (nth 4 entry))
7805 (match-end (nth 4 entry)))))))
7806 (goto-char end))))))
7808 ;;; External functions:
7810 (defun gnus-article-add-button (from to fun &optional data)
7811 "Create a button between FROM and TO with callback FUN and data DATA."
7812 (when gnus-article-button-face
7813 (gnus-overlay-put (gnus-make-overlay from to nil t)
7814 'face gnus-article-button-face))
7815 (gnus-add-text-properties
7816 from to
7817 (nconc (and gnus-article-mouse-face
7818 (list gnus-mouse-face-prop gnus-article-mouse-face))
7819 (list 'gnus-callback fun)
7820 (and data (list 'gnus-data data))))
7821 (widget-convert-button 'link from to :action 'gnus-widget-press-button
7822 :button-keymap gnus-widget-button-keymap))
7824 ;;; Internal functions:
7826 (defun gnus-article-set-globals ()
7827 (with-current-buffer gnus-summary-buffer
7828 (gnus-set-global-variables)))
7830 (defun gnus-signature-toggle (end)
7831 (gnus-with-article-buffer
7832 (let ((inhibit-point-motion-hooks t))
7833 (if (text-property-any end (point-max) 'article-type 'signature)
7834 (progn
7835 (gnus-delete-wash-type 'signature)
7836 (gnus-remove-text-properties-when
7837 'article-type 'signature end (point-max)
7838 (cons 'article-type (cons 'signature
7839 gnus-hidden-properties))))
7840 (gnus-add-wash-type 'signature)
7841 (gnus-add-text-properties-when
7842 'article-type nil end (point-max)
7843 (cons 'article-type (cons 'signature
7844 gnus-hidden-properties)))))
7845 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
7846 (gnus-set-mode-line 'article))))
7848 (defun gnus-button-entry ()
7849 ;; Return the first entry in `gnus-button-alist' matching this place.
7850 (let ((alist gnus-button-alist)
7851 (entry nil))
7852 (while alist
7853 (setq entry (pop alist))
7854 (if (looking-at (eval (car entry)))
7855 (setq alist nil)
7856 (setq entry nil)))
7857 entry))
7859 (defun gnus-button-push (marker)
7860 ;; Push button starting at MARKER.
7861 (save-excursion
7862 (goto-char marker)
7863 (let* ((entry (gnus-button-entry))
7864 (inhibit-point-motion-hooks t)
7865 (fun (nth 3 entry))
7866 (args (or (and (eq (car entry) 'gnus-button-url-regexp)
7867 (get-char-property marker 'gnus-button-url))
7868 (mapcar (lambda (group)
7869 (let ((string (match-string group)))
7870 (set-text-properties
7871 0 (length string) nil string)
7872 string))
7873 (nthcdr 4 entry)))))
7874 (cond
7875 ((fboundp fun)
7876 (apply fun args))
7877 ((and (boundp fun)
7878 (fboundp (symbol-value fun)))
7879 (apply (symbol-value fun) args))
7880 (t
7881 (gnus-message 1 "You must define `%S' to use this button"
7882 (cons fun args)))))))
7884 (defun gnus-parse-news-url (url)
7885 (let (scheme server port group message-id articles)
7886 (with-temp-buffer
7887 (insert url)
7888 (goto-char (point-min))
7890 (setq scheme (match-string 1))
7891 (goto-char (match-end 0)))
7893 (setq server (match-string 1))
7894 (setq port (if (stringp (match-string 3))
7895 (string-to-number (match-string 3))
7896 (match-string 3)))
7897 (goto-char (match-end 0)))
7899 (cond
7901 (setq message-id (match-string 1)))
7903 (setq group (match-string 1)
7904 articles (split-string (match-string 2) "-")))
7906 (setq group (match-string 1)))
7907 (t
7908 (error "Unknown news URL syntax"))))
7909 (list scheme server port group message-id articles)))
7911 (defun gnus-button-handle-news (url)
7912 "Fetch a news URL."
7913 (destructuring-bind (scheme server port group message-id articles)
7914 (gnus-parse-news-url url)
7915 (cond
7916 (message-id
7917 (with-current-buffer gnus-summary-buffer
7918 (if server
7919 (let ((gnus-refer-article-method
7920 (nconc (list (list 'nntp server))
7921 gnus-refer-article-method))
7922 (nntp-port-number (or port "nntp")))
7923 (gnus-message 7 "Fetching %s with %s"
7924 message-id gnus-refer-article-method)
7925 (gnus-summary-refer-article message-id))
7926 (gnus-summary-refer-article message-id))))
7927 (group
7928 (gnus-button-fetch-group url)))))
7930 (defun gnus-button-patch (library line)
7931 "Visit an Emacs Lisp library LIBRARY on line LINE."
7932 (interactive)
7933 (let ((file (locate-library (file-name-nondirectory library))))
7934 (unless file
7935 (error "Couldn't find library %s" library))
7936 (find-file file)
7937 (goto-char (point-min))
7938 (forward-line (1- (string-to-number line)))))
7940 (defun gnus-button-handle-man (url)
7941 "Fetch a man page."
7942 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
7943 (when (eq gnus-button-man-handler 'woman)
7945 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
7946 (funcall gnus-button-man-handler url))
7948 (defun gnus-button-handle-info-url (url)
7949 "Fetch an info URL."
7950 (setq url (mm-subst-char-in-string ?+ ?\ url))
7951 (cond
7953 (gnus-info-find-node
7954 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
7955 "Gnus")
7956 ")" (gnus-url-unhex-string (match-string 2 url)))))
7958 (setq url
7959 (gnus-replace-in-string
7961 (gnus-info-find-node url))
7962 (t (error "Can't parse %s" url))))
7964 (defun gnus-button-handle-info-url-gnome (url)
7965 "Fetch GNOME style info URL."
7966 (setq url (mm-subst-char-in-string ?_ ?\ url))
7968 (gnus-info-find-node
7969 (concat "("
7970 (gnus-url-unhex-string
7971 (match-string 1 url))
7972 ")"
7973 (or (gnus-url-unhex-string
7974 (match-string 2 url))
7975 "Top")))
7976 (error "Can't parse %s" url)))
7978 (defun gnus-button-handle-info-url-kde (url)
7979 "Fetch KDE style info URL."
7980 (gnus-info-find-node (gnus-url-unhex-string url)))
7982 ;; (info) will autoload info.el
7983 (declare-function Info-menu "info" (menu-item &optional fork))
7984 (declare-function Info-index-next "info" (num))
7986 (defun gnus-button-handle-info-keystrokes (url)
7987 "Call `info' when pushing the corresponding URL button."
7988 ;; For links like `C-h i d m gnus RET part RET , ,', `C-h i d m CC Mode RET'.
7989 (let (node indx comma)
7990 (if (string-match
7995 url)
7996 (setq node (match-string 2 url)
7997 indx (match-string 3 url))
7998 (error "Can't parse %s" url))
7999 (info)
8000 (Info-directory)
8001 (Info-menu node)
8002 (when (> (length indx) 0)
8005 indx)
8006 (setq comma (match-string 2 indx))
8007 (setq indx (match-string 1 indx))
8008 (Info-index indx)
8009 (when comma
8010 (dotimes (i (with-temp-buffer
8011 (insert comma)
8012 ;; Note: the XEmacs version of `how-many' takes
8013 ;; no optional argument.
8014 (goto-char (point-min))
8015 (how-many ",")))
8016 (Info-index-next 1)))
8017 nil)))
8019 ;; Called after pgg-snarf-keys-region, which autoloads pgg.el.
8020 (declare-function pgg-display-output-buffer "pgg" (start end status))
8022 (defun gnus-button-openpgp (url)
8023 "Retrieve and add an OpenPGP key given URL from an OpenPGP header."
8024 (with-temp-buffer
8025 (mm-url-insert-file-contents-external url)
8026 (pgg-snarf-keys-region (point-min) (point-max))
8027 (pgg-display-output-buffer nil nil nil)))
8029 (defun gnus-button-message-id (message-id)
8030 "Fetch MESSAGE-ID."
8031 (with-current-buffer gnus-summary-buffer
8032 (gnus-summary-refer-article message-id)))
8034 (defun gnus-button-fetch-group (address &rest ignore)
8035 "Fetch GROUP specified by ADDRESS."
8037 address)
8038 ;; Allow to use `gnus-button-fetch-group' in `browse-url-browser-function'
8039 ;; for nntp:// and news://
8040 (setq address (match-string 3 address)))
8041 (if (not (string-match "[:/]" address))
8042 ;; This is just a simple group url.
8043 (gnus-group-read-ephemeral-group address gnus-select-method)
8044 (if (not
8045 (string-match
8047 address))
8048 (error "Can't parse %s" address)
8049 (gnus-group-read-ephemeral-group
8050 (match-string 4 address)
8051 `(nntp ,(match-string 1 address)
8052 (nntp-address ,(match-string 1 address))
8053 (nntp-port-number ,(if (match-end 3)
8054 (match-string 3 address)
8055 "nntp")))
8056 nil nil nil
8057 (and (match-end 6) (list (string-to-number (match-string 6 address))))))))
8059 (defun gnus-url-parse-query-string (query &optional downcase)
8060 (let (retval pairs cur key val)
8061 (setq pairs (split-string query "&"))
8062 (while pairs
8063 (setq cur (car pairs)
8064 pairs (cdr pairs))
8065 (if (not (string-match "=" cur))
8066 nil ; Grace
8067 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
8068 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
8069 (if downcase
8070 (setq key (downcase key)))
8071 (setq cur (assoc key retval))
8072 (if cur
8073 (setcdr cur (cons val (cdr cur)))
8074 (setq retval (cons (list key val) retval)))))
8075 retval))
8077 (defun gnus-url-mailto (url)
8078 ;; Send mail to someone
8080 (setq url (substring url (match-beginning 1) nil)))
8081 (let (to args subject func)
8082 (setq args (gnus-url-parse-query-string
8084 (substring url 1)
8086 (concat "to=" (match-string 1 url) "&"
8087 (match-string 2 url))
8088 (concat "to=" url)))
8089 t)
8090 subject (cdr-safe (assoc "subject" args)))
8091 (gnus-msg-mail)
8092 (while args
8093 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
8094 (if (fboundp func)
8095 (funcall func)
8096 (message-position-on-field (caar args)))
8097 (insert (gnus-replace-in-string
8098 (mapconcat 'identity (reverse (cdar args)) ", ")
8100 (setq args (cdr args)))
8101 (if subject
8102 (message-goto-body)
8103 (message-goto-subject))))
8105 (defun gnus-button-embedded-url (address)
8106 "Activate ADDRESS with `browse-url'."
8107 (browse-url (gnus-strip-whitespace address)))
8109 ;;; Next/prev buttons in the article buffer.
8114 (defvar gnus-prev-page-map
8115 (let ((map (make-sparse-keymap)))
8116 (define-key map gnus-mouse-2 'gnus-button-prev-page)
8118 map))
8120 (defvar gnus-next-page-map
8121 (let ((map (make-sparse-keymap)))
8122 (unless (>= emacs-major-version 21)
8123 ;; XEmacs doesn't care.
8124 (set-keymap-parent map gnus-article-mode-map))
8125 (define-key map gnus-mouse-2 'gnus-button-next-page)
8127 map))
8129 (defun gnus-insert-prev-page-button ()
8130 (let ((b (point)) e
8131 (inhibit-read-only t))
8132 (gnus-eval-format
8133 gnus-prev-page-line-format nil
8134 `(keymap ,gnus-prev-page-map
8135 gnus-prev t
8136 gnus-callback gnus-article-button-prev-page
8137 article-type annotation))
8138 (setq e (if (bolp)
8139 ;; Exclude a newline.
8140 (1- (point))
8141 (point)))
8142 (when gnus-article-button-face
8143 (gnus-overlay-put (gnus-make-overlay b e nil t)
8144 'face gnus-article-button-face))
8145 (widget-convert-button
8146 'link b e
8147 :action 'gnus-button-prev-page
8148 :button-keymap gnus-prev-page-map)))
8150 (defun gnus-button-next-page (&optional args more-args)
8151 "Go to the next page."
8152 (interactive)
8153 (let ((win (selected-window)))
8154 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8155 (gnus-article-next-page)
8156 (select-window win)))
8158 (defun gnus-button-prev-page (&optional args more-args)
8159 "Go to the prev page."
8160 (interactive)
8161 (let ((win (selected-window)))
8162 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8163 (gnus-article-prev-page)
8164 (select-window win)))
8166 (defun gnus-insert-next-page-button ()
8167 (let ((b (point)) e
8168 (inhibit-read-only t))
8169 (gnus-eval-format gnus-next-page-line-format nil
8170 `(keymap ,gnus-next-page-map
8171 gnus-next t
8172 gnus-callback gnus-article-button-next-page
8173 article-type annotation))
8174 (setq e (if (bolp)
8175 ;; Exclude a newline.
8176 (1- (point))
8177 (point)))
8178 (when gnus-article-button-face
8179 (gnus-overlay-put (gnus-make-overlay b e nil t)
8180 'face gnus-article-button-face))
8181 (widget-convert-button
8182 'link b e
8183 :action 'gnus-button-next-page
8184 :button-keymap gnus-next-page-map)))
8186 (defun gnus-article-button-next-page (arg)
8187 "Go to the next page."
8188 (interactive "P")
8189 (let ((win (selected-window)))
8190 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8191 (gnus-article-next-page)
8192 (select-window win)))
8194 (defun gnus-article-button-prev-page (arg)
8195 "Go to the prev page."
8196 (interactive "P")
8197 (let ((win (selected-window)))
8198 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8199 (gnus-article-prev-page)
8200 (select-window win)))
8202 (defvar gnus-decode-header-methods
8203 '(mail-decode-encoded-word-region)
8204 "List of methods used to decode headers.
8206 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
8207 is FUNCTION, FUNCTION will be applied to all newsgroups. If item is a
8208 \(REGEXP . FUNCTION), FUNCTION will be only apply to the newsgroups
8209 whose names match REGEXP.
8211 For example:
8213 mail-decode-encoded-word-region
8215 ")
8217 (defvar gnus-decode-header-methods-cache nil)
8219 (defun gnus-multi-decode-header (start end)
8220 "Apply the functions from `gnus-encoded-word-methods' that match."
8221 (unless (and gnus-decode-header-methods-cache
8222 (eq gnus-newsgroup-name
8223 (car gnus-decode-header-methods-cache)))
8224 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
8225 (dolist (x gnus-decode-header-methods)
8226 (if (symbolp x)
8227 (nconc gnus-decode-header-methods-cache (list x))
8228 (if (and gnus-newsgroup-name
8229 (string-match (car x) gnus-newsgroup-name))
8230 (nconc gnus-decode-header-methods-cache
8231 (list (cdr x)))))))
8232 (let ((xlist gnus-decode-header-methods-cache))
8233 (pop xlist)
8234 (save-restriction
8235 (narrow-to-region start end)
8236 (while xlist
8237 (funcall (pop xlist) (point-min) (point-max))))))
8239 ;;;
8240 ;;; Treatment top-level handling.
8241 ;;;
8243 (defun gnus-treat-article (condition &optional part-number total-parts type)
8244 (let ((length (- (point-max) (point-min)))
8245 (alist gnus-treatment-function-alist)
8246 (article-goto-body-goes-to-point-min-p t)
8247 (treated-type
8248 (or (not type)
8249 (catch 'found
8250 (let ((list gnus-article-treat-types))
8251 (while list
8252 (when (string-match (pop list) type)
8253 (throw 'found t)))))))
8254 (highlightp (gnus-visual-p 'article-highlight 'highlight))
8255 val elem)
8256 (gnus-run-hooks 'gnus-part-display-hook)
8257 (dolist (elem alist)
8258 (setq val
8259 (save-excursion
8260 (when (gnus-buffer-live-p gnus-summary-buffer)
8261 (set-buffer gnus-summary-buffer))
8262 (symbol-value (car elem))))
8263 (when (and (or (consp val)
8264 treated-type)
8265 (gnus-treat-predicate val)
8266 (or (not (get (car elem) 'highlight))
8267 highlightp))
8268 (save-restriction
8269 (funcall (cadr elem)))))))
8271 ;; Dynamic variables.
8272 (defvar part-number)
8273 (defvar total-parts)
8274 (defvar type)
8275 (defvar condition)
8276 (defvar length)
8278 (defun gnus-treat-predicate (val)
8279 (cond
8280 ((null val)
8281 nil)
8282 (condition
8283 (eq condition val))
8284 ((and (listp val)
8285 (stringp (car val)))
8286 (apply 'gnus-or (mapcar `(lambda (s)
8287 (string-match s ,(or gnus-newsgroup-name "")))
8288 val)))
8289 ((listp val)
8290 (let ((pred (pop val)))
8291 (cond
8292 ((eq pred 'or)
8293 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
8294 ((eq pred 'and)
8295 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
8296 ((eq pred 'not)
8297 (not (gnus-treat-predicate (car val))))
8298 ((eq pred 'typep)
8299 (equal (car val) type))
8300 (t
8301 (error "%S is not a valid predicate" pred)))))
8302 ((eq val t)
8303 t)
8304 ((eq val 'head)
8305 nil)
8306 ((eq val 'first)
8307 (eq part-number 1))
8308 ((eq val 'last)
8309 (eq part-number total-parts))
8310 ((numberp val)
8311 (< length val))
8312 (t
8313 (error "%S is not a valid value" val))))
8315 (defun gnus-article-encrypt-body (protocol &optional n)
8316 "Encrypt the article body."
8317 (interactive
8318 (list
8319 (or gnus-article-encrypt-protocol
8320 (completing-read "Encrypt protocol: "
8321 gnus-article-encrypt-protocol-alist
8322 nil t))
8323 current-prefix-arg))
8324 ;; User might hit `K E' instead of `K e', so prompt once.
8325 (when (and gnus-article-encrypt-protocol
8326 gnus-novice-user)
8327 (unless (gnus-y-or-n-p "Really encrypt article(s)? ")
8328 (error "Encrypt aborted")))
8329 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
8330 (unless func
8331 (error "Can't find the encrypt protocol %s" protocol))
8332 (if (member gnus-newsgroup-name '("nndraft:delayed"
8333 "nndraft:drafts"
8334 "nndraft:queue"))
8335 (error "Can't encrypt the article in group %s"
8336 gnus-newsgroup-name))
8337 (gnus-summary-iterate n
8338 (with-current-buffer gnus-summary-buffer
8339 (let ((mail-parse-charset gnus-newsgroup-charset)
8340 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
8341 (summary-buffer gnus-summary-buffer)
8342 references point)
8343 (gnus-set-global-variables)
8344 (when (gnus-group-read-only-p)
8345 (error "The current newsgroup does not support article encrypt"))
8346 (gnus-summary-show-article t)
8347 (setq references
8348 (or (mail-header-references gnus-current-headers) ""))
8349 (set-buffer gnus-article-buffer)
8350 (let* ((inhibit-read-only t)
8351 (headers
8352 (mapcar (lambda (field)
8353 (and (save-restriction
8354 (message-narrow-to-head)
8355 (goto-char (point-min))
8356 (search-forward field nil t))
8357 (prog2
8358 (message-narrow-to-field)
8359 (buffer-string)
8360 (delete-region (point-min) (point-max))
8361 (widen))))
8362 '("Content-Type:" "Content-Transfer-Encoding:"
8363 "Content-Disposition:"))))
8364 (message-narrow-to-head)
8365 (message-remove-header "MIME-Version")
8366 (goto-char (point-max))
8367 (setq point (point))
8368 (insert (apply 'concat headers))
8369 (widen)
8370 (narrow-to-region point (point-max))
8371 (let ((message-options message-options))
8372 (message-options-set 'message-sender user-mail-address)
8373 (message-options-set 'message-recipients user-mail-address)
8374 (message-options-set 'message-sign-encrypt 'not)
8375 (funcall func))
8376 (goto-char (point-min))
8378 (widen)
8379 (gnus-summary-edit-article-done
8380 references nil summary-buffer t))
8381 (when gnus-keep-backlog
8382 (gnus-backlog-remove-article
8383 (car gnus-article-current) (cdr gnus-article-current)))
8384 (when (get-buffer gnus-original-article-buffer)
8385 (with-current-buffer gnus-original-article-buffer
8386 (setq gnus-original-article nil)))
8387 (when gnus-use-cache
8388 (gnus-cache-update-article
8389 (car gnus-article-current) (cdr gnus-article-current))))))))
8392 "The following specs can be used:
8393 %t The security MIME type
8394 %i Additional info
8395 %d Details
8396 %D Details if button is pressed")
8399 "The following specs can be used:
8400 %t The security MIME type
8401 %i Additional info
8402 %d Details
8403 %D Details if button is pressed")
8405 (defvar gnus-mime-security-button-line-format-alist
8406 '((?t gnus-tmp-type ?s)
8407 (?i gnus-tmp-info ?s)
8408 (?d gnus-tmp-details ?s)
8409 (?D gnus-tmp-pressed-details ?s)))
8411 (defvar gnus-mime-security-button-commands
8413 (undefined "v")
8414 (undefined "t")
8415 (undefined "C")
8416 (gnus-mime-security-save-part "o" "Save...")
8417 (undefined "\C-o")
8418 (undefined "r")
8419 (undefined "d")
8420 (undefined "c")
8421 (undefined "i")
8422 (undefined "E")
8423 (undefined "e")
8424 (undefined "p")
8425 (gnus-mime-security-pipe-part "|" "Pipe To Command...")
8426 (undefined ".")))
8428 (defvar gnus-mime-security-button-map
8429 (let ((map (make-sparse-keymap)))
8430 (define-key map gnus-mouse-2 'gnus-article-push-button)
8431 (define-key map gnus-down-mouse-3 'gnus-mime-security-button-menu)
8432 (dolist (c gnus-mime-security-button-commands)
8433 (define-key map (cadr c) (car c)))
8434 map))
8436 (easy-menu-define
8437 gnus-mime-security-button-menu gnus-mime-security-button-map
8438 "Security button menu."
8439 `("Security Part"
8440 ,@(delq nil
8441 (mapcar (lambda (c)
8442 (unless (eq (car c) 'undefined)
8443 (vector (caddr c) (car c) :active t)))
8444 gnus-mime-security-button-commands))))
8446 (defun gnus-mime-security-button-menu (event prefix)
8447 "Construct a context-sensitive menu of security commands."
8449 (save-window-excursion
8450 (let ((pos (event-start event)))
8451 (select-window (posn-window pos))
8452 (goto-char (posn-point pos))
8453 (gnus-article-check-buffer)
8454 (popup-menu gnus-mime-security-button-menu nil prefix))))
8456 (defvar gnus-mime-security-details-buffer nil)
8458 (defvar gnus-mime-security-button-pressed nil)
8460 (defvar gnus-mime-security-show-details-inline t
8461 "If non-nil, show details in the article buffer.")
8463 (defun gnus-mime-security-verify-or-decrypt (handle)
8464 (mm-remove-parts (cdr handle))
8465 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
8466 point (inhibit-read-only t))
8467 (if region
8468 (goto-char (car region)))
8469 (setq point (point))
8470 (with-current-buffer (mm-handle-multipart-original-buffer handle)
8471 (let* ((mm-verify-option 'known)
8472 (mm-decrypt-option 'known)
8473 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
8474 (unless (eq nparts (cdr handle))
8475 (mm-destroy-parts (cdr handle))
8476 (setcdr handle nparts))))
8477 (gnus-mime-display-security handle)
8478 (when region
8479 (delete-region (point) (cdr region))
8480 (set-marker (car region) nil)
8481 (set-marker (cdr region) nil))
8482 (goto-char point)))
8484 (defun gnus-mime-security-show-details (handle)
8485 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
8486 (if (not details)
8487 (gnus-message 5 "No details.")
8488 (if gnus-mime-security-show-details-inline
8489 (let ((gnus-mime-security-button-pressed
8490 (not (get-text-property (point) 'gnus-mime-details)))
8491 (gnus-mime-security-button-line-format
8492 (get-text-property (point) 'gnus-line-format))
8493 (inhibit-read-only t))
8494 (forward-char -1)
8495 (while (eq (get-text-property (point) 'gnus-line-format)
8496 gnus-mime-security-button-line-format)
8497 (forward-char -1))
8498 (forward-char)
8499 (save-restriction
8500 (narrow-to-region (point) (point))
8501 (gnus-insert-mime-security-button handle))
8502 (delete-region (point)
8503 (or (text-property-not-all
8504 (point) (point-max)
8505 'gnus-line-format
8506 gnus-mime-security-button-line-format)
8507 (point-max))))
8508 ;; Not inlined.
8509 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
8510 (with-current-buffer gnus-mime-security-details-buffer
8511 (erase-buffer)
8512 t)
8513 (setq gnus-mime-security-details-buffer
8514 (gnus-get-buffer-create "*MIME Security Details*")))
8515 (with-current-buffer gnus-mime-security-details-buffer
8516 (insert details)
8517 (goto-char (point-min)))
8518 (pop-to-buffer gnus-mime-security-details-buffer)))))
8520 (defun gnus-mime-security-press-button (handle)
8521 (save-excursion
8522 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8523 (gnus-mime-security-show-details handle)
8524 (gnus-mime-security-verify-or-decrypt handle))))
8526 (defun gnus-insert-mime-security-button (handle &optional displayed)
8527 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
8528 (gnus-tmp-type
8529 (concat
8530 (or (nth 2 (assoc protocol mm-verify-function-alist))
8531 (nth 2 (assoc protocol mm-decrypt-function-alist))
8532 "Unknown")
8533 (if (equal (car handle) "multipart/signed")
8534 " Signed" " Encrypted")
8535 " Part"))
8536 (gnus-tmp-info
8537 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8538 "Undecided"))
8539 (gnus-tmp-details
8540 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
8541 gnus-tmp-pressed-details
8542 b e)
8543 (setq gnus-tmp-details
8544 (if gnus-tmp-details
8546 ""))
8547 (setq gnus-tmp-pressed-details
8548 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
8549 (unless (bolp)
8551 (setq b (point))
8552 (gnus-eval-format
8553 gnus-mime-security-button-line-format
8554 gnus-mime-security-button-line-format-alist
8555 `(keymap ,gnus-mime-security-button-map
8556 gnus-callback gnus-mime-security-press-button
8557 gnus-line-format ,gnus-mime-security-button-line-format
8558 gnus-mime-details ,gnus-mime-security-button-pressed
8559 article-type annotation
8560 gnus-data ,handle))
8561 (setq e (if (bolp)
8562 ;; Exclude a newline.
8563 (1- (point))
8564 (point)))
8565 (when gnus-article-button-face
8566 (gnus-overlay-put (gnus-make-overlay b e nil t)
8567 'face gnus-article-button-face))
8568 (widget-convert-button
8569 'link b e
8570 :mime-handle handle
8571 :action 'gnus-widget-press-button
8572 :button-keymap gnus-mime-security-button-map
8573 :help-echo
8574 (lambda (widget/window &optional overlay pos)
8575 ;; Needed to properly clear the message due to a bug in
8576 ;; wid-edit (XEmacs only).
8577 (when (boundp 'help-echo-owns-message)
8578 (setq help-echo-owns-message t))
8579 (format
8580 "%S: show detail; %S: more options"
8581 (aref gnus-mouse-2 0)
8582 (aref gnus-down-mouse-3 0))))))
8584 (defun gnus-mime-display-security (handle)
8585 (save-restriction
8586 (narrow-to-region (point) (point))
8587 (unless (gnus-unbuttonized-mime-type-p (car handle))
8588 (gnus-insert-mime-security-button handle))
8589 (gnus-mime-display-part (cadr handle))
8590 (unless (bolp)
8592 (unless (gnus-unbuttonized-mime-type-p (car handle))
8593 (let ((gnus-mime-security-button-line-format
8594 gnus-mime-security-button-end-line-format))
8595 (gnus-insert-mime-security-button handle)))
8596 (mm-set-handle-multipart-parameter
8597 handle 'gnus-region
8598 (cons (set-marker (make-marker) (point-min))
8599 (set-marker (make-marker) (point-max))))
8600 (goto-char (point-max))))
8602 (defun gnus-mime-security-run-function (function)
8603 "Run FUNCTION with the security part under point."
8604 (gnus-article-check-buffer)
8605 (let ((data (get-text-property (point) 'gnus-data))
8606 buffer handle)
8607 (when (and (stringp (car-safe data))
8608 (setq buffer (mm-handle-multipart-original-buffer data))
8609 (setq handle (cadr data)))
8610 (if (bufferp (mm-handle-buffer handle))
8611 (progn
8612 (setq handle (cons buffer (copy-sequence (cdr handle))))
8613 (mm-handle-set-undisplayer handle nil))
8614 (setq handle (mm-make-handle
8615 buffer
8616 (mm-handle-multipart-ctl-parameter handle 'protocol)
8617 nil nil nil nil nil nil)))
8618 (funcall function handle))))
8620 (defun gnus-mime-security-save-part ()
8621 "Save the security part under point."
8622 (interactive)
8623 (gnus-mime-security-run-function 'mm-save-part))
8625 (defun gnus-mime-security-pipe-part ()
8626 "Pipe the security part under point to a process."
8627 (interactive)
8628 (gnus-mime-security-run-function 'mm-pipe-part))
8630 (gnus-ems-redefine)
8632 (provide 'gnus-art)
8634 (run-hooks 'gnus-art-load-hook)
8636 ;; arch-tag: 2654516f-6279-48f9-a83b-05c1fa450c33
8637 ;;; gnus-art.el ends here