| blob | 071d4674c594908ee73c0bdc635737640a89ed5f |
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 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, or (at your option)
14 ;; 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; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 ;; Boston, MA 02110-1301, USA.
26 ;;; Commentary:
28 ;;; Code:
30 ;; For Emacs < 22.2.
39 ;; Avoid the "Recursive load suspected" error in Emacs 21.1.
63 "Article display."
68 "Treating article parts."
73 "Hiding article parts."
78 "Article highlighting."
84 "Article signatures."
89 "Article headers."
94 "Special commands on articles."
99 "Fontisizing articles."
104 "Saving articles."
109 "Worshiping the MIME wonder."
114 "Pushable buttons in the article buffer."
119 "Other article options."
168 "*All headers that start with this regexp will be hidden.
169 This variable can also be a list of regexps of headers to be ignored.
170 If `gnus-visible-headers' is non-nil, this variable will be ignored."
172 regexp
177 "^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:"
178 "*All headers that do not match this regexp will be hidden.
179 This variable can also be a list of regexp of headers to remain visible.
180 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
186 regexp)
192 "*This variable is a list of regular expressions.
193 If it is non-nil, headers that match the regular expressions will
194 be placed first in the article buffer in the sequence specified by
195 this list."
200 "Headers that are only to be displayed if they have interesting data.
201 Possible values in this list are:
203 'empty Headers with no content.
204 'newsgroups Newsgroup identical to Gnus group.
205 'to-address To identical to To-address.
206 'to-list To identical to To-list.
207 'cc-list CC identical to To-list.
208 'followup-to Followup-to identical to Newsgroups.
209 'reply-to Reply-to identical to From.
210 'date Date less than four days old.
211 'long-to To and/or Cc longer than 1024 characters.
212 'many-to Multiple To and/or Cc."
226 "Skip over text that is not worth reading.
227 By default, if you set this t, then Gnus will display citations and
228 signatures, but will never scroll down to show you a page consisting
229 only of boring text. Boring text is controlled by
230 `gnus-article-boring-faces'."
236 "Regexp matching signature separator.
237 This can also be a list of regexps. In that case, it will be checked
238 from head to tail looking for a separator. Searches will be done from
239 the end of the buffer."
246 "Provide a limit to what is considered a signature.
247 If it is a number, no signature may not be longer (in characters) than
248 that number. If it is a floating point number, no signature may be
249 longer (in lines) than that number. If it is a function, the function
250 will be called without any parameters, and if it returns nil, there is
251 no signature in the buffer. If it is a string, it will be used as a
252 regexp. If it matches, the text in question is not a signature.
254 This can also be a list of the above values."
258 function
263 "Property list to use for hiding text."
267 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
268 ;; frames in a session.
273 'gnus-display-x-face-in-from
276 'gnus-display-x-face-in-from
277 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | \
279 "*String or function to be executed to display an X-Face header.
280 If it is a string, the command will be executed in a sub-shell
281 asynchronously. The compressed face will be piped to this command."
284 function)
290 "Regexp matching posters whose face shouldn't be shown automatically."
295 "Banner alist for stripping.
296 For example,
297 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
303 banner
304 :variable-document
305 "Alist of regexps (to match group names) and banner."
306 :variable-group gnus-article-washing
307 :parameter-type
309 :value nil
312 regexp
314 :parameter-document
315 "If non-nil, specify how to remove `banners' from articles.
317 Symbol `signature' means to remove signatures delimited by
318 `gnus-signature-separator'. Any other symbol is used to look up a
319 regular expression to match the banner in `gnus-article-banner-alist'.
320 A string is used as a regular expression to match the banner
324 "Alist of mail addresses and banners.
325 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
326 to match a mail address in the From: header, BANNER is one of a symbol
327 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
328 If ADDRESS matches author's mail address, it will remove things like
329 advertisements. For example:
332 "
339 regexp
354 2
357 value)))
365 pattern)
370 value))))
388 types))
390 ;; several times seen it triggered by normal text. --Stef
391 ;; Miles suggests that this form is sometimes used but for italics,
392 ;; so maybe we should map it to `italic'.
393 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
394 ;; 2 3 gnus-emphasis-strikethru)
397 "*Alist that says how to fontify certain phrases.
398 Each item looks like this:
402 The first element is a regular expression to be matched. The second
403 is a number that says what regular expression grouping used to find
404 the entire emphasized word. The third is a number that says what
405 regexp grouping should be displayed and highlighted. The fourth
406 is the face used for highlighting."
407 :type
414 :value-create
422 widget
423 :value
426 regexp
429 face)
437 face)))
443 value)))
447 "A regexp to describe whitespace which should not be emphasized.
449 The former avoids underlining of leading and trailing whitespace,
450 and the latter avoids underlining any whitespace at all."
456 "Face used for displaying strong emphasized text (*word*)."
460 "Face used for displaying italic emphasized text (/word/)."
464 "Face used for displaying underlined emphasized text (_word_)."
468 "Face used for displaying underlined bold emphasized text (_*word*_)."
472 "Face used for displaying underlined italic emphasized text (_/word/_)."
476 "Face used for displaying bold italic emphasized text (/*word*/)."
481 "Face used for displaying underlined bold italic emphasized text.
482 Example: (_/*word*/_)."
488 "Face used for displaying strike-through text (-word-)."
493 "Face used for displaying highlighted words."
497 "Format for display of Date headers in article bodies.
498 See `format-time-string' for the possible values.
500 The variable can also be function, which should return a complete Date
501 header. The function is called with one argument, the time, which can
502 be fed to `format-time-string'."
508 "*If non-nil, don't remove any headers before saving.
509 This will be overridden by the `:headers' property that the symbol of
510 the saver function, which is specified by `gnus-default-article-saver',
511 might have."
516 "*This variable says how much prompting is to be done when saving articles.
517 If it is nil, no prompting will be done, and the articles will be
518 saved to the default files. If this variable is `always', each and
519 every article that is saved will be preceded by a prompt, even when
520 saving large batches of articles. If this variable is neither nil not
521 `always', there the user will be prompted once for a file name for
522 each invocation of the saving commands."
529 "Headers to keep if `gnus-save-all-headers' is nil.
530 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
531 If that variable is nil, however, all headers that match this regexp
532 will be kept while the rest will be deleted before saving. This and
533 `gnus-save-all-headers' will be overridden by the `:headers' property
534 that the symbol of the saver function, which is specified by
535 `gnus-default-article-saver', might have."
540 "A function to save articles in your favourite format.
541 The function will be called by way of the `gnus-summary-save-article'
542 command, and friends such as `gnus-summary-save-article-rmail'.
544 Gnus provides the following functions:
546 * gnus-summary-save-in-rmail (Rmail format)
547 * gnus-summary-save-in-mail (Unix mail format)
548 * gnus-summary-save-in-folder (MH folder)
549 * gnus-summary-save-in-file (article format)
550 * gnus-summary-save-body-in-file (article body)
551 * gnus-summary-save-in-vm (use VM's folder format)
552 * gnus-summary-write-to-file (article format -- overwrite)
553 * gnus-summary-write-body-to-file (article body -- overwrite)
555 The symbol of each function may have the following properties:
557 * :decode
558 The value non-nil means save decoded articles. This is meaningful
559 only with `gnus-summary-save-in-file', `gnus-summary-save-body-in-file',
560 `gnus-summary-write-to-file', and `gnus-summary-write-body-to-file'.
562 * :function
563 The value specifies an alternative function which appends, not
564 overwrites, articles to a file. This implies that when saving many
565 articles at a time, `gnus-prompt-before-saving' is bound to t and all
566 articles are saved in a single file. This is meaningful only with
567 `gnus-summary-write-to-file' and `gnus-summary-write-body-to-file'.
569 * :headers
570 The value specifies the symbol of a variable of which the value
571 specifies headers to be saved. If it is omitted,
572 `gnus-save-all-headers' and `gnus-saved-headers' control what
573 headers should be saved."
590 "Coding system used to save decoded articles to a file.
592 The recommended coding systems are `utf-8', `iso-2022-7bit' and so on,
593 which can safely encode any characters in text. This is used by the
594 commands including:
596 * gnus-summary-save-article-file
597 * gnus-summary-save-article-body-file
598 * gnus-summary-write-article-file
599 * gnus-summary-write-article-body-file
601 and the functions to which you may set `gnus-default-article-saver':
603 * gnus-summary-save-in-file
604 * gnus-summary-save-body-in-file
605 * gnus-summary-write-to-file
606 * gnus-summary-write-body-to-file
608 Those commands and functions save just text displayed in the article
609 buffer to a file if the value of this variable is non-nil. Note that
610 buttonized MIME parts will be lost in a saved file in that case.
611 Otherwise, raw articles will be saved."
626 "A function generating a file name to save articles in Rmail format.
627 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
632 "A function generating a file name to save articles in Unix mail format.
633 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
638 "A function generating a file name to save articles in MH folder.
639 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
644 "A function generating a file name to save articles in article format.
645 The function is called with NEWSGROUP, HEADERS, and optional
646 LAST-FILE."
653 "*Variable used to suggest where articles are to be saved.
654 For instance, if you would like to save articles related to Gnus in
656 you could set this variable to something like:
661 This variable is an alist where the key is the match and the
662 value is a list of possible files to save in if the match is
663 non-nil.
665 If the match is a string, it is used as a regexp match on the
666 article. If the match is a symbol, that symbol will be funcalled
667 from the buffer of the article to be saved with the newsgroup as the
668 parameter. If it is a list, it will be evaled in the same buffer.
670 If this form or function returns a string, this string will be used as a
671 possible file name; and if it returns a non-nil list, that list will be
672 used as possible file names."
679 "*Regexp describing what to use as article page delimiters.
681 beginning of a line."
686 "*The format specification for the article mode line.
687 See `gnus-summary-mode-line-format' for a closer description.
689 The following additional specs are available:
691 %w The article washing status.
692 %m The number of MIME parts in the article."
697 "*A hook for Gnus article mode."
702 ;; Extracted from gnus-xmas-define in order to preserve user settings
705 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
709 "*Hook run after the creation of the article mode menu."
714 "*A hook called after an article has been prepared in the article buffer."
719 "List of headers to be removed when copying an article.
720 Each element is a regular expression."
730 "Face used for highlighting a button in the article buffer."
734 "Face used for highlighting buttons in the article buffer.
736 An article button is a piece of text that you can activate by pressing
737 `RET' or `mouse-2' above it."
742 "Face used for mouse highlighting in the article buffer.
744 Article buttons will be displayed in this face when the cursor is
745 above them."
750 "Face used for highlighting a signature in the article buffer.
751 Obsolete; use the face `gnus-signature' for customizations instead."
759 "Face used for highlighting a signature in the article buffer."
762 ;; backward-compatibility alias
774 "Face used for displaying from headers."
777 ;; backward-compatibility alias
789 "Face used for displaying subject headers."
792 ;; backward-compatibility alias
804 "Face used for displaying newsgroups headers.
805 In the default setup this face is only used for crossposted
806 articles."
809 ;; backward-compatibility alias
821 "Face used for displaying header names."
824 ;; backward-compatibility alias
838 ;; backward-compatibility alias
846 "*Controls highlighting of article headers.
848 An alist of the form (HEADER NAME CONTENT).
850 HEADER is a regular expression which should match the name of a
851 header and NAME and CONTENT are either face names or nil.
853 The name of each header field will be displayed using the face
854 specified by the first element in the list where HEADER matches
855 the header name and NAME is non-nil. Similarly, the content will
856 be displayed by the first non-nil matching CONTENT face."
871 "Alist of image types and properties applied to Face and X-Face images.
872 Here are examples:
874 ;; Specify the altitude of Face images in the From header.
875 \(setq gnus-face-properties-alist
876 '((pbm . (:face gnus-x-face :ascent 80))
877 (png . (:ascent 80))))
879 ;; Show Face images as pressed buttons.
880 \(setq gnus-face-properties-alist
881 '((pbm . (:face gnus-x-face :relief -2))
882 (png . (:relief -2))))
884 See the manual for the valid properties for various image types.
885 Currently, `pbm' is used for X-Face images and `png' is used for Face
886 images in Emacs. Only the `:face' property is effective on the `xface'
887 image type in XEmacs if it is built with the libcompface library."
894 article-decode-group-name article-decode-idna-rhs)
895 "*Hook run to decode charsets in articles."
900 "Function to display MIME articles."
933 "List of MIME types that should be ignored by Gnus."
939 "List of MIME types that should not be given buttons when rendered inline.
940 See also `gnus-buttonized-mime-types' which may override this variable.
941 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
947 "List of MIME types that should be given buttons when rendered inline.
948 If set, this variable overrides `gnus-unbuttonized-mime-types'.
949 To see e.g. security buttons you could set this to
951 this list to display radio buttons that allow you to choose one of two
952 media types those mails include. See also `mm-discouraged-alternatives'.
953 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
959 "If non-nil, all MIME parts get buttons.
960 When nil (the default value), then some MIME parts do not get buttons,
961 as described by the variables `gnus-buttonized-mime-types' and
962 `gnus-unbuttonized-mime-types'."
968 "String used to delimit header and body.
969 This variable is used by `gnus-article-treat-body-boundary' which can
970 be controlled by `gnus-treat-body-boundary'."
974 string))
978 "Defines the location of the faces database.
979 For information on obtaining this database of pretty pictures, please
980 see http://www.cs.indiana.edu/picons/ftp/index.html"
989 "Say whether picons are installed on your machine."
994 installed))
997 "Function called with a MIME handle as the argument.
998 This is meant for people who want to do something automatic based
999 on parts -- for instance, adding Vcard info to a database."
1002 function))
1005 "An alist of MIME types to functions to display them."
1011 "Whether the X-Sent and Date headers can coexist.
1014 be added below it (otherwise)."
1020 "Function called with a MIME handle as the argument.
1021 This is meant for people who want to view first matched part.
1022 For `undisplayed-alternative' (default), the first undisplayed
1023 part or alternative part is used. For `undisplayed', the first
1024 undisplayed part is used. For a function, the first part which
1025 the function return t is used. For nil, the first part is
1026 used."
1049 "An alist of actions that run on the MIME attachment."
1055 "Advance to next MIME part when deleting or stripping parts.
1057 When 0, point will be placed on the same part as before. When
1058 positive (negative), move point forward (backwards) this many
1059 parts. When nil, redisplay article."
1065 integer))
1067 ;;;
1068 ;;; The treatment variables
1069 ;;;
1096 "Highlight the signature.
1097 Valid values are nil, t, `head', `first', `last', an integer or a
1098 predicate. See Info node `(gnus)Customizing Articles'."
1105 "Add buttons.
1106 Valid values are nil, t, `head', `first', `last', an integer or a
1107 predicate. See Info node `(gnus)Customizing Articles'."
1114 "Add buttons to the head.
1115 Valid values are nil, t, `head', `first', `last', an integer or a
1116 predicate. See Info node `(gnus)Customizing Articles'."
1123 "Emphasize text.
1124 Valid values are nil, t, `head', `first', `last', an integer or a
1125 predicate. See Info node `(gnus)Customizing Articles'."
1132 "Remove carriage returns.
1133 Valid values are nil, t, `head', `first', `last', an integer or a
1134 predicate. See Info node `(gnus)Customizing Articles'."
1141 "Remove newlines from within URLs.
1142 Valid values are nil, t, `head', `first', `last', an integer or a
1143 predicate. See Info node `(gnus)Customizing Articles'."
1150 "Remove leading whitespace in headers.
1151 Valid values are nil, t, `head', `first', `last', an integer or a
1152 predicate. See Info node `(gnus)Customizing Articles'."
1159 "Hide headers.
1160 Valid values are nil, t, `head', `first', `last', an integer or a
1161 predicate. See Info node `(gnus)Customizing Articles'."
1167 "Hide boring headers.
1168 Valid values are nil, t, `head', `first', `last', an integer or a
1169 predicate. See Info node `(gnus)Customizing Articles'."
1175 "Hide the signature.
1176 Valid values are nil, t, `head', `first', `last', an integer or a
1177 predicate. See Info node `(gnus)Customizing Articles'."
1183 "Fill the article.
1184 Valid values are nil, t, `head', `first', `last', an integer or a
1185 predicate. See Info node `(gnus)Customizing Articles'."
1191 "Hide cited text.
1192 Valid values are nil, t, `head', `first', `last', an integer or a
1193 predicate. See Info node `(gnus)Customizing Articles'."
1199 "Hide cited text.
1200 Valid values are nil, t, `head', `first', `last', an integer or a
1201 predicate. See Info node `(gnus)Customizing Articles'."
1207 "Strip list identifiers from `gnus-list-identifiers`.
1208 Valid values are nil, t, `head', `first', `last', an integer or a
1209 predicate. See Info node `(gnus)Customizing Articles'."
1219 "Strip PEM signatures.
1220 Valid values are nil, t, `head', `first', `last', an integer or a
1221 predicate. See Info node `(gnus)Customizing Articles'."
1227 "Strip banners from articles.
1228 The banner to be stripped is specified in the `banner' group parameter.
1229 Valid values are nil, t, `head', `first', `last', an integer or a
1230 predicate. See Info node `(gnus)Customizing Articles'."
1236 "Highlight the headers.
1237 Valid values are nil, t, `head', `first', `last', an integer or a
1238 predicate. See Info node `(gnus)Customizing Articles'."
1245 "Highlight cited text.
1246 Valid values are nil, t, `head', `first', `last', an integer or a
1247 predicate. See Info node `(gnus)Customizing Articles'."
1254 "Display the Date in UT (GMT).
1255 Valid values are nil, t, `head', `first', `last', an integer or a
1256 predicate. See Info node `(gnus)Customizing Articles'."
1262 "Display the Date in the local timezone.
1263 Valid values are nil, t, `head', `first', `last', an integer or a
1264 predicate. See Info node `(gnus)Customizing Articles'."
1270 "Display the Date in a format that can be read aloud in English.
1271 Valid values are nil, t, `head', `first', `last', an integer or a
1272 predicate. See Info node `(gnus)Customizing Articles'."
1279 "Display the Date header in a way that says how much time has elapsed.
1280 Valid values are nil, t, `head', `first', `last', an integer or a
1281 predicate. See Info node `(gnus)Customizing Articles'."
1287 "Display the date in the original timezone.
1288 Valid values are nil, t, `head', `first', `last', an integer or a
1289 predicate. See Info node `(gnus)Customizing Articles'."
1295 "Display the date in the ISO8601 format.
1296 Valid values are nil, t, `head', `first', `last', an integer or a
1297 predicate. See Info node `(gnus)Customizing Articles'."
1304 "Display the date in a user-defined format.
1305 The format is defined by the `gnus-article-time-format' variable.
1306 Valid values are nil, t, `head', `first', `last', an integer or a
1307 predicate. See Info node `(gnus)Customizing Articles'."
1313 "Strip the X-No-Archive header line from the beginning of the body.
1314 Valid values are nil, t, `head', `first', `last', an integer or a
1315 predicate. See Info node `(gnus)Customizing Articles'."
1322 "Strip trailing blank lines.
1323 Valid values are nil, t, `head', `first', `last', an integer or a
1324 predicate. See Info node `(gnus)Customizing Articles'.
1326 When set to t, it also strips trailing blanks in all MIME parts.
1327 Consider to use `last' instead."
1333 "Strip leading 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."
1343 "Strip multiple blank lines.
1344 Valid values are nil, t, `head', `first', `last', an integer or a
1345 predicate. See Info node `(gnus)Customizing Articles'."
1351 "Unfold folded header lines.
1352 Valid values are nil, t, `head', `first', `last', an integer or a
1353 predicate. See Info node `(gnus)Customizing Articles'."
1360 "If non-nil, allow unfolding headers even if the header is long.
1361 If it is a regexp, only long headers matching this regexp are unfolded.
1362 If it is t, all long headers are unfolded.
1364 This variable has no effect if `gnus-treat-unfold-headers' is nil."
1372 "Fold headers.
1373 Valid values are nil, t, `head', `first', `last', an integer or a
1374 predicate. See Info node `(gnus)Customizing Articles'."
1381 "Fold the Newsgroups and Followup-To headers.
1382 Valid values are nil, t, `head', `first', `last', an integer or a
1383 predicate. See Info node `(gnus)Customizing Articles'."
1390 "Treat overstrike highlighting.
1391 Valid values are nil, t, `head', `first', `last', an integer or a
1392 predicate. See Info node `(gnus)Customizing Articles'."
1399 "Treat ANSI SGR control sequences.
1400 Valid values are nil, t, `head', `first', `last', an integer or a
1401 predicate. See Info node `(gnus)Customizing Articles'."
1417 "Display X-Face headers.
1418 Valid values are nil and `head'.
1419 See Info node `(gnus)Customizing Articles' and Info node
1420 `(gnus)X-Face' for details."
1425 :type gnus-article-treat-head-custom
1428 symbol
1430 value)
1433 ** gnus-treat-display-xface is an obsolete variable;\
1438 ** gnus-treat-display-xface is an obsolete variable;\
1442 value)))))
1449 "Display Face headers.
1450 Valid values are nil, t, `head', `first', `last', an integer or a
1451 predicate. See Info node `(gnus)Customizing Articles' and Info
1452 node `(gnus)X-Face' for details."
1461 "Display smileys.
1462 Valid values are nil, t, `head', `first', `last', an integer or a
1463 predicate. See Info node `(gnus)Customizing Articles' and Info
1464 node `(gnus)Smileys' for details."
1476 "Display picons in the From header.
1477 Valid values are nil, t, `head', `first', `last', an integer or a
1478 predicate. See Info node `(gnus)Customizing Articles' and Info
1479 node `(gnus)Picons' for details."
1492 "Display picons in To and Cc headers.
1493 Valid values are nil, t, `head', `first', `last', an integer or a
1494 predicate. See Info node `(gnus)Customizing Articles' and Info
1495 node `(gnus)Picons' for details."
1508 "Display picons in the Newsgroups and Followup-To headers.
1509 Valid values are nil, t, `head', `first', `last', an integer or a
1510 predicate. See Info node `(gnus)Customizing Articles' and Info
1511 node `(gnus)Picons' for details."
1522 gnus-treat-mail-picon
1523 gnus-treat-from-picon)
1524 ;; If there's much decoration, the user might prefer a boundery.
1525 'head
1526 nil)
1527 "Draw a boundary at the end of the headers.
1528 Valid values are nil and `head'.
1529 See Info node `(gnus)Customizing Articles' for details."
1536 "Capitalize sentence-starting words.
1537 Valid values are nil, t, `head', `first', `last', an integer or a
1538 predicate. See Info node `(gnus)Customizing Articles'."
1545 "Format as HTML.
1546 Valid values are nil, t, `head', `first', `last', an integer or a
1547 predicate. See Info node `(gnus)Customizing Articles'."
1554 "Fill long lines.
1555 Valid values are nil, t, `head', `first', `last', an integer or a
1556 predicate. See Info node `(gnus)Customizing Articles'."
1562 "Play sounds.
1563 Valid values are nil, t, `head', `first', `last', an integer or a
1564 predicate. See Info node `(gnus)Customizing Articles'."
1571 "Translate articles from one language to another.
1572 Valid values are nil, t, `head', `first', `last', an integer or a
1573 predicate. See Info node `(gnus)Customizing Articles'."
1580 "Verify X-PGP-Sig.
1581 To automatically treat X-PGP-Sig, set it to head.
1582 Valid values are nil, t, `head', `first', `last', an integer or a
1583 predicate. See Info node `(gnus)Customizing Articles'."
1593 ;; Set to nil if more than one protocol added to
1594 ;; gnus-article-encrypt-protocol-alist.
1596 "The protocol used for encrypt articles.
1608 "Whether IDNA decoding of headers is used when viewing messages.
1609 This requires GNU Libidn, and by default only enabled if it is found."
1615 "If non-nil, allow scrolling the article buffer even when there no more text."
1620 ;;; Internal variables
1663 gnus-article-remove-trailing-blank-lines)
1665 gnus-article-strip-leading-blank-lines)
1667 gnus-article-strip-multiple-blank-lines)
1690 ;; This causes the citation match run O(2^n).
1691 ;; (modify-syntax-entry ?- "w" table)
1694 ;; make M-. in article buffers work for `foo' strings
1697 table)
1698 "Syntax table used in article mode buffers.
1706 gnus-summary-mode-line-format-alist))
1714 ;;; Macros for dealing with the article buffer.
1737 "Go to HEADER, which is a regular expression."
1741 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
1749 "Remove hidden text properties from region between B and E."
1756 "Hide text of TYPE between B and E."
1762 "Unhide text of TYPE between B and E."
1771 "Hide text of TYPE in the current buffer."
1779 "Delete text of TYPE in the current buffer."
1783 ;; Remove MIME buttons associated with multipart/alternative parts.
1791 t))
1802 "Delete all invisible text in the current buffer."
1811 "Say whether any text of type TYPE exists in the buffer."
1815 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1823 i))
1826 "Hide unwanted headers and possibly sort them as well."
1828 ;; This function might be inhibited.
1835 ignored visible beg)
1837 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1838 ;; group parameters, so we should go to the summary buffer.
1845 gnus-ignored-headers)
1848 gnus-ignored-headers
1851 gnus-visible-headers)
1855 gnus-visible-headers
1859 ;; First we narrow to just the headers.
1861 ;; Hide any "From " lines at the beginning of (mail) articles.
1866 ;; Then treat the rest of the header lines.
1867 ;; Then we use the two regular expressions
1868 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1869 ;; select which header lines is to remain visible in the
1870 ;; article buffer.
1873 ;; Mark the rank of the header.
1885 ;; We delete the unwanted headers.
1892 "Toggle hiding of headers that aren't very interesting.
1893 If given a negative prefix, always show; if given a positive prefix,
1894 always hide."
1906 ;; Hide empty headers.
1918 ;; Hide boring Newsgroups header.
1924 gnus-newsgroup-name
1936 ;; only one address in To
1938 to-address)))
1949 ;; only one address in To
1951 to-list)))
1962 ;; only one address in CC
1964 to-list)))
1979 from reply-to
1993 ;; If date in `gnus-article-buffer' is localized
1994 ;; (`gnus-treat-date-user-defined'),
1995 ;; `days-between' might fail.
2053 "Make all header lines 40 characters long."
2056 column)
2063 gnus-article-normalized-header-length)
2067 ? )))
2076 ;; Do nothing.
2077 ))
2081 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
2082 Note that this function guesses whether a character is a sm*rtq**t* or
2083 not, so it should only be used interactively.
2085 Sm*rtq**t*s are M****s***'s unilateral extension to the
2086 iso-8859-1 character map in an attempt to provide more quoting
2088 you're expecting some kind of apostrophe or quotation mark, then
2089 try this wash."
2094 "Translate all characters in the body of the article according to FROM and TO.
2095 FROM is a string of characters to translate from; to is a string of
2096 characters to translate to."
2111 "Translate all string in the body of the article according to MAP.
2122 "Translate overstrikes into bold text."
2130 ;; We do the boldification/underlining by hiding the
2131 ;; overstrikes and putting the proper text property
2132 ;; on the letters.
2148 "Translate ANSI SGR control sequences into overlays or extents."
2156 "Unfold folded message headers.
2157 Only the headers that fit into the current window width will be
2158 unfolded."
2183 "Fold message headers."
2206 "Remove all images from the article buffer."
2213 "Unfold folded message headers.
2214 Only the headers that fit into the current window width will be
2215 unfolded."
2227 "Value of `truncate-lines' in Gnus Article buffer.
2228 Valid values are nil, t, `head', `first', `last', an integer or a
2229 predicate. See Info node `(gnus)Customizing Articles'."
2232 ;; :link '(custom-manual "(gnus)Customizing Articles")
2236 "Toggle whether to fold or truncate long lines in article the buffer.
2237 If ARG is non-nil and not a number, toggle
2238 `gnus-article-truncate-lines' too. If ARG is a number, truncate
2239 long lines iff arg is positive."
2255 ;; In versions of Emacs 22 (CVS) before 2006-05-26,
2256 ;; `toggle-truncate-lines' needs an argument.
2260 "Place a boundary line at the end of the headers."
2277 "Fill lines that are wider than the window width."
2297 "Capitalize the first word in each sentence."
2308 "Remove trailing CRs and then translate remaining CRs into LFs."
2320 "Remove all trailing blank lines from the article."
2339 "Display any Face headers in the header."
2343 ;; When displaying parts, this function can be called several times on
2344 ;; the same article, without any intended toggle semantic (as typing `W
2345 ;; D d' would have). So face deletion must occur only when we come from
2346 ;; an interactive command, that is when the *Article* buffer is
2347 ;; read-only.
2351 face faces)
2360 ;; Check whether this face is censored.
2365 from))))
2386 "Look for an X-Face header and display it if present."
2390 ;; Delete the old process, if any.
2393 ;; See the comment in `article-display-face'.
2395 ;; We have already displayed X-Faces, so we remove them
2396 ;; instead.
2398 ;; Display X-Faces.
2400 x-faces face)
2405 ;; If type `W f', use gnus-original-article-buffer,
2406 ;; otherwise use the current buffer because displaying
2407 ;; RFC822 parts calls this function too.
2413 ;; Check whether this face is censored.
2418 from))))
2422 ;; We display the face.
2424 ;; The command is a lisp function, so we call it.
2427 ;; The command is a string, so we interpret the command
2428 ;; as a, well, command, and fork it off.
2432 "article-x-face" nil shell-file-name
2433 shell-command-switch gnus-article-x-face-command)
2434 nil)
2435 ;; Sending multiple EOFs to xv doesn't work,
2436 ;; so we only do a single external face.
2444 gnus-article-x-face-command
2448 "Decode all MIME-encoded words in the article."
2455 gnus-newsgroup-ignored-charsets)))
2459 "Decode charset-encoded text in the article.
2460 If PROMPT (the prefix), prompt for a coding system to use."
2469 gnus-newsgroup-ignored-charsets))
2470 ct cte ctl charset format)
2493 ;; The text code could have been decoded.
2504 "Remove encoded-word encoding from headers."
2511 gnus-newsgroup-ignored-charsets))
2513 end start)
2532 "Decode group names in Newsgroups, Followup-To and Xref headers."
2536 regexp)
2538 gnus-group-name-charset-group-alist)
2550 ;; XXX how to use data in article buffer?
2554 gnus-newsgroup-name method))
2561 "Decode IDNA strings in RHS in various headers in current buffer.
2562 The following headers are decoded: From:, To:, Cc:, Reply-To:,
2563 Mail-Reply-To: and Mail-Followup-To:."
2582 "Translate a quoted-printable-encoded article.
2583 If FORCE, decode the article whether it is marked as quoted-printable
2584 or not.
2585 If READ-CHARSET, ask for a coding system."
2611 "Translate a base64 article.
2612 If FORCE, decode the article whether it is marked as base64 not.
2613 If READ-CHARSET, ask for a coding system."
2645 "Translate a HZ-encoded article."
2653 "Remove the newlines that some other mailers insert into URLs."
2666 "Format an HTML article.
2667 If READ-CHARSET, ask for a coding system. If it is a number, the
2668 charset defined in `gnus-summary-show-article-charset-alist' is used."
2672 charset)
2678 gnus-summary-show-article-charset-alist))))
2709 ;; External.
2713 "Wash the current buffer with w3."
2723 ;; External.
2727 "Wash the current buffer with emacs-w3m."
2730 w3m-force-redisplay)
2734 w3m-minor-mode-map)
2738 ;; Put the mark meaning this part was rendered by emacs-w3m.
2744 "Wash the current buffer with w3m."
2748 ;; The default.
2759 "List of temporary files created by `gnus-article-browse-html-parts'.
2763 "What to do with temporary files from `gnus-article-browse-html-parts'.
2764 If nil, don't delete temporary files. If it is t, delete them on
2765 exit from the summary buffer. If it is the symbol `file', query
2766 on each file, if it is `ask' ask once when exiting from the
2767 summary buffer."
2775 ;; Cf. mm-postponed-undisplay-list / mm-destroy-postponed-undisplay-list.
2778 "Delete temp-files created by `gnus-article-browse-html-parts'."
2784 "Delete all %s temporary HTML file(s)? "
2790 ;; `how' is neither `nil', `ask' nor `t' (i.e. `file'):
2794 ;; Also remove file from the list when not deleted or if file doesn't
2795 ;; exist anymore.
2797 gnus-article-browse-html-temp-list)
2801 Recurse into multiparts. The optional HEADER that should be a decoded
2803 ;; Internal function used by `gnus-article-browse-html-article'.
2805 ;; Find and show the html-parts.
2807 ;; If HTML, show it:
2822 nil)))
2828 header
2831 ;; Do we need to care for 8.3 filenames?
2833 ;; Add a meta html tag to specify charset and a header.
2851 ;; We have to examine charset one by one since
2852 ;; charset specified in parts might be different.
2856 charset)
2860 charset))
2866 hcharset)))
2869 coding hcharset)))
2880 title coding))
2887 title charset))
2891 charset))))
2897 title coding))
2940 ;; FIXME: Warn if there's an <img> tag?
2943 ;; If multipart, recurse
2958 gnus-visible-headers)))
2968 showed))
2970 ;; FIXME: Documentation in texi/gnus.texi missing.
2973 The message header is added to the beginning of every html part unless
2974 the prefix argument ARG is given.
2976 Warning: Spammers use links to images in HTML articles to verify
2977 whether you have read the message. As
2978 `gnus-article-browse-html-article' passes the unmodified HTML
2980 should only use it for mails from trusted senders.
2982 If you alwasy want to display HTML part in the browser, set
2983 `mm-text-html-renderer' to nil."
2984 ;; Cf. `mm-w3m-safe-url-regexp'
2989 gnus-visible-headers)))
3002 parts)
3005 ;; If singlepart, enforce a list.
3009 ;; Process the list
3017 "Remove list identifies from the Subject header.
3018 The `gnus-list-identifiers' variable specifies what to do."
3023 gnus-list-identifiers))
3032 nil t)
3040 "Toggle hiding of any PEM headers and signatures in the current article.
3041 If given a negative prefix, always show; if given a positive prefix,
3042 always hide."
3048 ;; Hide the horrendously ugly "header".
3051 nil t)
3055 end
3060 ;; Hide the trailer as well
3062 nil t)
3067 "Strip the banners specified by the `banner' group parameter and by
3068 `gnus-article-address-banner-alist'."
3077 ;; Note that the From header is decoded here, so it is
3078 ;; required that the *-extract-address-components function
3079 ;; supports non-ASCII text.
3087 from))))
3095 "Strip the banner specified by the argument."
3117 "Translate article using an online translation service."
3132 "Hide the signature in the current article.
3133 If given a negative prefix, always show; if given a positive prefix,
3134 always hide."
3146 "Strip offensive headers from bodies."
3155 "Remove all blank lines from the beginning of the article."
3166 "Narrow the buffer to the head of the message.
3167 Point is left at the beginning of the narrowed-to region."
3176 "Place point at the start of the body."
3179 ;; This variable is only bound when dealing with separate
3180 ;; MIME body parts.
3182 t)
3184 t)
3187 nil)))
3190 "Replace consecutive blank lines with one empty line."
3195 ;; First make all blank lines empty.
3201 ;; Then replace multiple empty lines with a single empty line.
3209 "Remove all white space from the beginning of the lines in the article."
3219 "Remove all white space from the end of the lines in the article."
3229 "Strip leading, trailing and multiple blank lines."
3236 "Strip all blank lines."
3246 "Narrow to the signature; return t if a signature is found, else nil."
3250 ;; Check whether we have some limits to what we consider
3251 ;; to be a signature.
3254 limit limited)
3266 limits nil)))
3269 t)))))
3272 "Search the current buffer for the signature separator.
3273 Put point at the beginning of the signature separator."
3282 seps))
3283 t
3285 nil)))
3288 "Return the current prefix arg as a number, or 0 if no prefix."
3294 "Return nil if hiding is necessary.
3295 Arg can be nil or a number. nil and positive means hide, negative
3296 means show, 0 means toggle."
3303 nil)
3306 t)
3311 t)
3312 nil)))))))
3315 "Say whether the current buffer contains hidden text of type TYPE."
3323 'hidden
3324 nil)))
3327 "Show all hidden text of type TYPE.
3328 Originally it is hide instead of DUMMY."
3332 'article-type type
3335 gnus-hidden-properties)))
3348 "Move point to the start of the next header.
3349 If the current header is a continuation header, this can be several
3350 lines forward."
3359 "Convert DATE date to universal time in the current article.
3360 If TYPE is `local', convert to local time; if it is `lapsed', output
3361 how much time has lapsed since DATE. For `lapsed', the value of
3367 tdate-regexp)
3373 tdate-regexp)))
3377 pos date bface eface)
3387 t))
3397 ;; Delete any old Date headers.
3416 ;; Do highlighting.
3428 "Return a DATE line of TYPE."
3434 ;; Convert to the local timezone.
3437 ;; Convert to Universal Time.
3451 ;; Get the original date from the article.
3455 date)))
3456 ;; Let the user define the format.
3460 gnus-article-time-format)
3462 gnus-article-time-format)))
3466 ;; ISO 8601.
3470 "Date: "
3475 ;; Do an X-Sent lapsed format.
3477 ;; If the date is seriously mangled, the timezone functions are
3478 ;; liable to bug out, so we ignore all errors.
3485 num prev)
3493 "X-Sent: "
3494 ;; This is a bit convoluted, but basically we go
3495 ;; through the time units for years, weeks, etc,
3496 ;; and divide things to see whether that results
3497 ;; in positive answers.
3501 ;; The (remaining) seconds are too few to
3502 ;; be divided into this time unit.
3503 ""
3504 ;; It's big enough, so we output it.
3513 ;; If dates are odd, then it might appear like the
3514 ;; article was sent in the future.
3516 " ago"
3518 ;; Display the date in proper English
3522 "Date: the "
3531 " of "
3533 " "
3535 " at "
3537 ":"
3543 "Convert the current article date to the local timezone."
3548 "Convert the current article date to something that is proper English."
3553 "Convert the current article date to what it was originally.
3554 This is only useful if you have used some other date conversion
3555 function and want to see what the date was before converting."
3560 "Convert the current article date to time lapsed since it was sent."
3565 "Function to be run from a timer to update the lapsed time line."
3583 "Start a timer to update the X-Sent header in the article buffers.
3584 The numerical prefix says how frequently (in seconds) the function
3585 is to run."
3594 "Stop the X-Sent timer."
3601 "Convert the current article date to the user-defined format.
3602 This format is defined by the `gnus-article-time-format' variable."
3607 "Convert the current article date to ISO8601."
3612 "Save the original date as a text property and evaluate FORMS."
3621 nil t))
3627 ,@forms
3632 ;; (defun article-show-all ()
3633 ;; "Show all hidden text in the article buffer."
3634 ;; (interactive)
3635 ;; (save-excursion
3636 ;; (let ((inhibit-read-only t))
3637 ;; (gnus-article-unhide-text (point-min) (point-max)))))
3640 "Remove excessive whitespace from all headers."
3651 "Emphasize text according to `gnus-emphasis-alist'."
3658 gnus-article-emphasis-alist)
3660 gnus-emphasis-alist))
3663 gnus-hidden-properties))
3664 regexp elem beg invisible visible face)
3685 "Setup newsgroup emphasis alist."
3697 highlight)
3702 gnus-emphasis-alist)))))
3707 ;;; Saving functions.
3710 "Save the currently selected article."
3713 ;; Remove headers according to `gnus-saved-headers' or the value
3714 ;; of the `:headers' property that the saver function might have.
3717 gnus-saved-headers gnus-visible-headers))
3724 ;; !!! Magic! The saving functions all save
3725 ;; `gnus-save-article-buffer' (or so they think), but we
3726 ;; bind that variable to our save-buffer.
3741 function group headers variable
3742 dir-var)
3745 result)
3750 default-name)
3752 default-name)
3765 gnus-number-of-articles-to-be-saved)
3768 ;; Let the split methods have their say.
3770 ;; No split name was found.
3776 default-name))
3777 ;; A single group name is returned.
3786 default-name))
3787 ;; A single split name was found
3791 gnus-article-save-directory))
3798 dir name)))
3799 ;; A list of splits was found.
3809 gnus-article-save-directory
3811 gnus-article-save-directory)))
3813 ;; Create the directory.
3815 ;; If we have read a directory, we append the default file name.
3818 default-name)
3820 ;; Possibly translate some characters.
3827 result))
3837 "If GROUP is an nndoc group, return the name of the parent group."
3842 "Append this article to Rmail file.
3843 Optional argument FILENAME specifies file name.
3844 Directory to save to is default to `gnus-article-save-directory'."
3846 "Save %s in rmail file" filename
3847 gnus-rmail-save-name gnus-newsgroup-name
3854 filename)
3857 "Append this article to Unix mail file.
3858 Optional argument FILENAME specifies file name.
3859 Directory to save to is default to `gnus-article-save-directory'."
3861 "Save %s in Unix mail file" filename
3862 gnus-mail-save-name gnus-newsgroup-name
3873 filename)
3878 "Append this article to file.
3879 Optional argument FILENAME specifies file name.
3880 Directory to save to is default to `gnus-article-save-directory'."
3882 "Save %s in file" filename
3883 gnus-file-save-name gnus-newsgroup-name
3893 filename)
3899 "Write this article to a file, overwriting it if the file exists.
3900 Optional argument FILENAME specifies file name.
3901 The directory to save in defaults to `gnus-article-save-directory'."
3903 "Save %s in file" filename
3904 gnus-file-save-name gnus-newsgroup-name
3910 "Append this article body to a file.
3911 Optional argument FILENAME specifies file name.
3912 The directory to save in defaults to `gnus-article-save-directory'."
3914 "Save %s body in file" filename
3915 gnus-file-save-name gnus-newsgroup-name
3927 filename)
3933 "Write this article body to a file, overwriting it if the file exists.
3934 Optional argument FILENAME specifies file name.
3935 The directory to save in defaults to `gnus-article-save-directory'."
3937 "Save %s body in file" filename
3938 gnus-file-save-name gnus-newsgroup-name
3943 "Pipe this article to subprocess."
3946 gnus-last-shell-command)
3947 gnus-last-shell-command)
3949 command)
3952 "Shell command on %s: "
3956 gnus-number-of-articles-to-be-saved)
3958 gnus-last-shell-command))))
3970 "Pipe this article to muttprint."
3972 "Print using command: " gnus-summary-muttprint-program
3973 nil gnus-summary-muttprint-program))
3976 ;;; Article file names when saving.
3979 "Capitalize NEWSGROUP name."
3985 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
3986 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
3987 Otherwise, it is like ~/News/news/group/num."
3994 gnus-article-save-directory)))
3999 default
4003 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4004 If variable `gnus-use-long-file-name' is non-nil, it is
4005 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
4009 newsgroup
4012 gnus-article-save-directory)))
4017 default
4021 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4022 If variable `gnus-use-long-file-name' is non-nil, it is
4023 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
4027 newsgroup
4030 default-directory))
4031 gnus-article-save-directory)))
4034 "Generate file name from sender."
4040 gnus-article-save-directory)))
4043 "Verify X-PGP-Sig."
4044 ;; <ftp://ftp.isc.org/pub/pgpcontrol/FORMAT>
4049 items info headers)
4051 mml2015-use
4059 ;; Don't verify multiple headers.
4109 ;; Do highlighting.
4118 "Verify Cancel-Lock header."
4142 article-verify-x-pgp-sig
4143 article-verify-cancel-lock
4144 article-hide-boring-headers
4145 article-treat-overstrike
4146 article-treat-ansi-sequences
4147 article-fill-long-lines
4148 article-capitalize-sentences
4149 article-remove-cr
4150 article-remove-leading-whitespace
4151 article-display-x-face
4152 article-display-face
4153 article-de-quoted-unreadable
4154 article-de-base64-unreadable
4155 article-decode-HZ
4156 article-wash-html
4157 article-unsplit-urls
4158 article-hide-list-identifiers
4159 article-strip-banner
4160 article-babel
4161 article-hide-pem
4162 article-hide-signature
4163 article-strip-headers-in-body
4164 article-remove-trailing-blank-lines
4165 article-strip-leading-blank-lines
4166 article-strip-multiple-blank-lines
4167 article-strip-leading-space
4168 article-strip-trailing-space
4169 article-strip-blank-lines
4170 article-strip-all-blank-lines
4171 article-date-local
4172 article-date-english
4173 article-date-iso8601
4174 article-date-original
4175 article-date-ut
4176 article-decode-mime-words
4177 article-decode-charset
4178 article-decode-encoded-words
4179 article-date-user
4180 article-date-lapsed
4181 article-emphasize
4182 article-treat-dumbquotes
4183 article-normalize-headers
4184 ;;(article-show-all . gnus-article-show-all-headers)
4185 )))
4186 \f
4187 ;;;
4188 ;;; Gnus article mode
4189 ;;;
4196 " " gnus-article-goto-next-page
4198 [delete] gnus-article-goto-prev-page
4199 [backspace] gnus-article-goto-prev-page
4200 "\C-c^" gnus-article-refer-article
4201 "h" gnus-article-show-summary
4202 "s" gnus-article-show-summary
4203 "\C-c\C-m" gnus-article-mail
4204 "?" gnus-article-describe-briefly
4205 "e" gnus-summary-edit-article
4206 "<" beginning-of-buffer
4207 ">" end-of-buffer
4208 "\C-c\C-i" gnus-info-find-node
4209 "\C-c\C-b" gnus-bug
4210 "R" gnus-article-reply-with-original
4211 "F" gnus-article-followup-with-original
4212 "\C-hk" gnus-article-describe-key
4213 "\C-hc" gnus-article-describe-key-briefly
4214 "\C-hb" gnus-article-describe-bindings
4216 "\C-d" gnus-article-read-summary-keys
4217 "\M-*" gnus-article-read-summary-keys
4218 "\M-#" gnus-article-read-summary-keys
4219 "\M-^" gnus-article-read-summary-keys
4220 "\M-g" gnus-article-read-summary-keys)
4222 (substitute-key-definition
4223 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
4225 (gnus-define-keys (gnus-article-send-map "S" gnus-article-mode-map)
4226 "W" gnus-article-wide-reply-with-original)
4227 (if (featurep 'xemacs)
4228 (set-keymap-default-binding gnus-article-send-map
4229 'gnus-article-read-summary-send-keys)
4230 (define-key gnus-article-send-map [t] 'gnus-article-read-summary-send-keys))
4232 (defun gnus-article-make-menu-bar ()
4233 (unless (boundp 'gnus-article-commands-menu)
4234 (gnus-summary-make-menu-bar))
4235 (gnus-turn-off-edit-menu 'article)
4236 (unless (boundp 'gnus-article-article-menu)
4237 (easy-menu-define
4238 gnus-article-article-menu gnus-article-mode-map ""
4239 '("Article"
4240 ["Scroll forwards" gnus-article-goto-next-page t]
4241 ["Scroll backwards" gnus-article-goto-prev-page t]
4242 ["Show summary" gnus-article-show-summary t]
4243 ["Fetch Message-ID at point" gnus-article-refer-article t]
4244 ["Mail to address at point" gnus-article-mail t]
4245 ["Send a bug report" gnus-bug t]))
4247 (easy-menu-define
4248 gnus-article-treatment-menu gnus-article-mode-map ""
4249 ;; Fixme: this should use :active (and maybe :visible).
4250 '("Treatment"
4251 ["Hide headers" gnus-article-hide-headers t]
4252 ["Hide signature" gnus-article-hide-signature t]
4253 ["Hide citation" gnus-article-hide-citation t]
4254 ["Treat overstrike" gnus-article-treat-overstrike t]
4255 ["Treat ANSI sequences" gnus-article-treat-ansi-sequences t]
4256 ["Remove carriage return" gnus-article-remove-cr t]
4257 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
4258 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
4259 ["Remove base64" gnus-article-de-base64-unreadable t]
4260 ["Treat html" gnus-article-wash-html t]
4261 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
4262 ["Decode HZ" gnus-article-decode-HZ t]))
4264 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
4266 ;; Note "Post" menu is defined in gnus-sum.el for consistency
4268 (gnus-run-hooks 'gnus-article-menu-hook)))
4270 (defun gnus-article-mode ()
4271 "Major mode for displaying an article.
4273 All normal editing commands are switched off.
4275 The following commands are available in addition to all summary mode
4276 commands:
4285 (interactive)
4286 (kill-all-local-variables)
4287 (gnus-simplify-mode-line)
4288 (setq mode-name "Article")
4289 (setq major-mode 'gnus-article-mode)
4290 (make-local-variable 'minor-mode-alist)
4291 (use-local-map gnus-article-mode-map)
4292 (when (gnus-visual-p 'article-menu 'menu)
4293 (gnus-article-make-menu-bar)
4294 (when gnus-summary-tool-bar-map
4295 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
4296 (gnus-update-format-specifications nil 'article-mode)
4297 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
4298 (set (make-local-variable 'gnus-page-broken) nil)
4299 (make-local-variable 'gnus-button-marker-list)
4300 (make-local-variable 'gnus-article-current-summary)
4301 (make-local-variable 'gnus-article-mime-handles)
4302 (make-local-variable 'gnus-article-decoded-p)
4303 (make-local-variable 'gnus-article-mime-handle-alist)
4304 (make-local-variable 'gnus-article-wash-types)
4305 (make-local-variable 'gnus-article-image-alist)
4306 (make-local-variable 'gnus-article-charset)
4307 (make-local-variable 'gnus-article-ignored-charsets)
4308 ;; Prevent Emacs 22 from displaying non-break space with `nobreak-space'
4309 ;; face.
4310 (set (make-local-variable 'nobreak-char-display) nil)
4311 (setq cursor-in-non-selected-windows nil)
4312 (setq truncate-lines gnus-article-truncate-lines)
4313 (gnus-set-default-directory)
4314 (buffer-disable-undo)
4315 (setq buffer-read-only t
4316 show-trailing-whitespace nil)
4317 (set-syntax-table gnus-article-mode-syntax-table)
4318 (mm-enable-multibyte)
4319 (gnus-run-mode-hooks 'gnus-article-mode-hook))
4321 (defvar gnus-button-marker-list nil
4322 "Regexp matching any of the regexps from `gnus-button-alist'.
4323 Internal variable.")
4325 (defun gnus-article-setup-buffer ()
4326 "Initialize the article buffer."
4327 (let* ((name (if gnus-single-article-buffer "*Article*"
4328 (concat "*Article " gnus-newsgroup-name "*")))
4329 (original
4331 (concat " *Original Article"
4332 (substring name (match-end 0))))))
4333 (setq gnus-article-buffer name)
4334 (setq gnus-original-article-buffer original)
4335 (setq gnus-article-mime-handle-alist nil)
4336 (with-current-buffer gnus-summary-buffer
4337 ;; This might be a variable local to the summary buffer.
4338 (unless gnus-single-article-buffer
4339 (setq gnus-article-buffer name)
4340 (setq gnus-original-article-buffer original)
4341 (gnus-set-global-variables)))
4342 (gnus-article-setup-highlight-words)
4343 ;; Init original article buffer.
4344 (with-current-buffer (gnus-get-buffer-create gnus-original-article-buffer)
4345 (mm-enable-multibyte)
4346 (setq major-mode 'gnus-original-article-mode)
4347 (make-local-variable 'gnus-original-article))
4348 (if (and (get-buffer name)
4349 (with-current-buffer name
4350 (if gnus-article-edit-mode
4351 (if (y-or-n-p "Article mode edit in progress; discard? ")
4352 (progn
4353 (set-buffer-modified-p nil)
4354 (gnus-kill-buffer name)
4355 (message "")
4356 nil)
4357 (error "Action aborted"))
4358 t)))
4359 (with-current-buffer name
4360 (set (make-local-variable 'gnus-article-edit-mode) nil)
4361 (when gnus-article-mime-handles
4362 (mm-destroy-parts gnus-article-mime-handles)
4363 (setq gnus-article-mime-handles nil))
4364 ;; Set it to nil in article-buffer!
4365 (setq gnus-article-mime-handle-alist nil)
4366 (buffer-disable-undo)
4367 (setq buffer-read-only t)
4368 ;; This list just keeps growing if we don't reset it.
4369 (setq gnus-button-marker-list nil)
4370 (unless (eq major-mode 'gnus-article-mode)
4371 (gnus-article-mode))
4372 (current-buffer))
4373 (with-current-buffer (gnus-get-buffer-create name)
4374 (gnus-article-mode)
4375 (make-local-variable 'gnus-summary-buffer)
4376 (setq gnus-summary-buffer
4377 (gnus-summary-buffer-name gnus-newsgroup-name))
4378 (gnus-summary-set-local-parameters gnus-newsgroup-name)
4379 (current-buffer)))))
4381 ;; Set article window start at LINE, where LINE is the number of lines
4382 ;; from the head of the article.
4383 (defun gnus-article-set-window-start (&optional line)
4384 (let ((article-window (gnus-get-buffer-window gnus-article-buffer t)))
4385 (when article-window
4386 (set-window-start
4387 article-window
4388 (with-current-buffer gnus-article-buffer
4389 (goto-char (point-min))
4390 (if (not line)
4391 (point-min)
4392 (gnus-message 6 "Moved to bookmark")
4394 (forward-line line)
4395 (point)))))))
4397 (defun gnus-article-prepare (article &optional all-headers header)
4398 "Prepare ARTICLE in article mode buffer.
4399 ARTICLE should either be an article number or a Message-ID.
4400 If ARTICLE is an id, HEADER should be the article headers.
4401 If ALL-HEADERS is non-nil, no headers are hidden."
4402 (save-excursion
4403 ;; Make sure we start in a summary buffer.
4404 (unless (eq major-mode 'gnus-summary-mode)
4405 (set-buffer gnus-summary-buffer))
4406 (setq gnus-summary-buffer (current-buffer))
4407 (let* ((gnus-article (if header (mail-header-number header) article))
4408 (summary-buffer (current-buffer))
4409 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
4410 (group gnus-newsgroup-name)
4411 result)
4412 (save-excursion
4413 (gnus-article-setup-buffer)
4414 (set-buffer gnus-article-buffer)
4415 ;; Deactivate active regions.
4416 (when (and (boundp 'transient-mark-mode)
4417 transient-mark-mode)
4418 (setq mark-active nil))
4419 (if (not (setq result (let ((inhibit-read-only t))
4420 (gnus-request-article-this-buffer
4421 article group))))
4422 ;; There is no such article.
4423 (save-excursion
4424 (when (and (numberp article)
4425 (not (memq article gnus-newsgroup-sparse)))
4426 (setq gnus-article-current
4427 (cons gnus-newsgroup-name article))
4428 (set-buffer gnus-summary-buffer)
4429 (setq gnus-current-article article)
4430 (if (and (memq article gnus-newsgroup-undownloaded)
4431 (not (gnus-online (gnus-find-method-for-group
4432 gnus-newsgroup-name))))
4433 (progn
4434 (gnus-summary-set-agent-mark article)
4435 (message "Message marked for downloading"))
4436 (gnus-summary-mark-article article gnus-canceled-mark)
4437 (unless (memq article gnus-newsgroup-sparse)
4438 (gnus-error 1 "No such article (may have expired or been canceled)")))))
4439 (if (or (eq result 'pseudo)
4440 (eq result 'nneething))
4441 (progn
4442 (with-current-buffer summary-buffer
4443 (push article gnus-newsgroup-history)
4444 (setq gnus-last-article gnus-current-article
4445 gnus-current-article 0
4446 gnus-current-headers nil
4447 gnus-article-current nil)
4448 (if (eq result 'nneething)
4449 (gnus-configure-windows 'summary)
4450 (gnus-configure-windows 'article))
4451 (gnus-set-global-variables))
4452 (let ((gnus-article-mime-handle-alist-1
4453 gnus-article-mime-handle-alist))
4454 (gnus-set-mode-line 'article)))
4455 ;; The result from the `request' was an actual article -
4456 ;; or at least some text that is now displayed in the
4457 ;; article buffer.
4458 (when (and (numberp article)
4459 (not (eq article gnus-current-article)))
4460 ;; Seems like a new article has been selected.
4461 ;; `gnus-current-article' must be an article number.
4462 (with-current-buffer summary-buffer
4463 (push article gnus-newsgroup-history)
4464 (setq gnus-last-article gnus-current-article
4465 gnus-current-article article
4466 gnus-current-headers
4467 (gnus-summary-article-header gnus-current-article)
4468 gnus-article-current
4469 (cons gnus-newsgroup-name gnus-current-article))
4470 (unless (vectorp gnus-current-headers)
4471 (setq gnus-current-headers nil))
4472 (gnus-summary-goto-subject gnus-current-article)
4473 (when (gnus-summary-show-thread)
4474 ;; If the summary buffer really was folded, the
4475 ;; previous goto may not actually have gone to
4476 ;; the right article, but the thread root instead.
4477 ;; So we go again.
4478 (gnus-summary-goto-subject gnus-current-article))
4479 (gnus-run-hooks 'gnus-mark-article-hook)
4480 (gnus-set-mode-line 'summary)
4481 (when (gnus-visual-p 'article-highlight 'highlight)
4482 (gnus-run-hooks 'gnus-visual-mark-article-hook))
4483 ;; Set the global newsgroup variables here.
4484 (gnus-set-global-variables)
4485 (setq gnus-have-all-headers
4486 (or all-headers gnus-show-all-headers))))
4487 (save-excursion
4488 (gnus-configure-windows 'article))
4489 (when (or (numberp article)
4490 (stringp article))
4491 (gnus-article-prepare-display)
4492 ;; Do page break.
4493 (goto-char (point-min))
4494 (when gnus-break-pages
4495 (gnus-narrow-to-page)))
4496 (let ((gnus-article-mime-handle-alist-1
4497 gnus-article-mime-handle-alist))
4498 (gnus-set-mode-line 'article))
4499 (article-goto-body)
4500 (unless (bobp)
4501 (forward-line -1))
4502 (set-window-point (get-buffer-window (current-buffer)) (point))
4503 (gnus-configure-windows 'article)
4504 t))))))
4506 ;;;###autoload
4507 (defun gnus-article-prepare-display ()
4508 "Make the current buffer look like a nice article."
4509 ;; Hooks for getting information from the article.
4510 ;; This hook must be called before being narrowed.
4511 (let ((gnus-article-buffer (current-buffer))
4512 buffer-read-only
4513 (inhibit-read-only t))
4514 (unless (eq major-mode 'gnus-article-mode)
4515 (gnus-article-mode))
4516 (setq buffer-read-only nil
4517 gnus-article-wash-types nil
4518 gnus-article-image-alist nil)
4519 (gnus-run-hooks 'gnus-tmp-internal-hook)
4520 (when gnus-display-mime-function
4521 (funcall gnus-display-mime-function))
4522 (gnus-run-hooks 'gnus-article-prepare-hook)))
4524 ;;;
4525 ;;; Gnus Sticky Article Mode
4526 ;;;
4528 (define-derived-mode gnus-sticky-article-mode gnus-article-mode "StickyArticle"
4529 "Mode for sticky articles."
4530 ;; Release bindings that won't work.
4531 (substitute-key-definition 'gnus-article-read-summary-keys 'undefined
4532 gnus-sticky-article-mode-map)
4533 (substitute-key-definition 'gnus-article-refer-article 'undefined
4534 gnus-sticky-article-mode-map)
4535 (dolist (k '("e" "h" "s" "F" "R"))
4536 (define-key gnus-sticky-article-mode-map k nil))
4537 (define-key gnus-sticky-article-mode-map "k" 'gnus-kill-sticky-article-buffer)
4538 (define-key gnus-sticky-article-mode-map "q" 'bury-buffer)
4539 (define-key gnus-sticky-article-mode-map "\C-hc" 'describe-key-briefly)
4540 (define-key gnus-sticky-article-mode-map "\C-hk" 'describe-key))
4542 (defun gnus-sticky-article (arg)
4543 "Make the current article sticky.
4544 If a prefix ARG is given, ask for a name for this sticky article buffer."
4545 (interactive "P")
4546 (gnus-summary-show-thread)
4547 (gnus-summary-select-article nil nil 'pseudo)
4548 (let (new-art-buf-name)
4549 (gnus-eval-in-buffer-window gnus-article-buffer
4550 (setq new-art-buf-name
4551 (concat
4552 "*Sticky Article: "
4553 (if arg
4554 (read-from-minibuffer "Sticky article buffer name: ")
4555 (gnus-with-article-headers
4556 (gnus-article-goto-header "subject")
4557 (setq new-art-buf-name
4558 (buffer-substring-no-properties
4559 (line-beginning-position) (line-end-position)))
4560 (goto-char (point-min))
4561 (gnus-article-goto-header "from")
4562 (setq new-art-buf-name
4563 (concat
4564 new-art-buf-name ", "
4565 (buffer-substring-no-properties
4566 (line-beginning-position) (line-end-position))))
4567 (goto-char (point-min))
4568 (gnus-article-goto-header "date")
4569 (setq new-art-buf-name
4570 (concat
4571 new-art-buf-name ", "
4572 (buffer-substring-no-properties
4573 (line-beginning-position) (line-end-position))))))
4574 "*"))
4575 (if (and (gnus-buffer-live-p new-art-buf-name)
4576 (with-current-buffer new-art-buf-name
4577 (eq major-mode 'gnus-sticky-article-mode)))
4578 (switch-to-buffer new-art-buf-name)
4579 (setq new-art-buf-name (rename-buffer new-art-buf-name t)))
4580 (gnus-sticky-article-mode))
4581 (setq gnus-article-buffer new-art-buf-name))
4582 (gnus-summary-recenter)
4583 (gnus-summary-position-point))
4585 (defun gnus-kill-sticky-article-buffer (&optional buffer)
4586 "Kill the given sticky article BUFFER.
4587 If none is given, assume the current buffer and kill it if it has
4588 `gnus-sticky-article-mode'."
4589 (interactive)
4590 (unless buffer
4591 (setq buffer (current-buffer)))
4592 (with-current-buffer buffer
4593 (when (eq major-mode 'gnus-sticky-article-mode)
4594 (gnus-kill-buffer buffer))))
4596 (defun gnus-kill-sticky-article-buffers (arg)
4597 "Kill all sticky article buffers.
4598 If a prefix ARG is given, ask for confirmation."
4599 (interactive "P")
4600 (dolist (buf (gnus-buffers))
4601 (with-current-buffer buf
4602 (when (eq major-mode 'gnus-sticky-article-mode)
4603 (if (not arg)
4604 (gnus-kill-buffer buf)
4605 (when (yes-or-no-p (concat "Kill buffer " (buffer-name buf) "? "))
4606 (gnus-kill-buffer buf)))))))
4608 ;;;
4609 ;;; Gnus MIME viewing functions
4610 ;;;
4613 "Format of the MIME buttons.
4615 Valid specifiers include:
4616 %t The MIME type
4617 %T MIME type, along with additional info
4618 %n The `name' parameter
4619 %d The description, if any
4620 %l The length of the encoded part
4621 %p The part identifier number
4622 %e Dots if the part isn't displayed
4624 General format specifiers can also be used. See Info node
4625 `(gnus)Formatting Variables'.")
4627 (defvar gnus-mime-button-line-format-alist
4628 '((?t gnus-tmp-type ?s)
4629 (?T gnus-tmp-type-long ?s)
4630 (?n gnus-tmp-name ?s)
4631 (?d gnus-tmp-description ?s)
4632 (?p gnus-tmp-id ?s)
4633 (?l gnus-tmp-length ?d)
4634 (?e gnus-tmp-dots ?s)))
4636 (defvar gnus-mime-button-commands
4638 (gnus-mime-view-part "v" "View Interactively...")
4639 (gnus-mime-view-part-as-type "t" "View As Type...")
4640 (gnus-mime-view-part-as-charset "C" "View As charset...")
4641 (gnus-mime-save-part "o" "Save...")
4642 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
4643 (gnus-mime-replace-part "r" "Replace part")
4644 (gnus-mime-delete-part "d" "Delete part")
4645 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
4646 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
4647 (gnus-mime-view-part-internally "E" "View Internally") ;; Why `E'?
4648 (gnus-mime-view-part-externally "e" "View Externally")
4649 (gnus-mime-print-part "p" "Print")
4650 (gnus-mime-pipe-part "|" "Pipe To Command...")
4651 (gnus-mime-action-on-part "." "Take action on the part...")))
4653 (defun gnus-article-mime-part-status ()
4654 (if gnus-article-mime-handle-alist-1
4655 (if (eq 1 (length gnus-article-mime-handle-alist-1))
4656 " (1 part)"
4657 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
4658 ""))
4660 (defvar gnus-mime-button-map
4661 (let ((map (make-sparse-keymap)))
4662 (define-key map gnus-mouse-2 'gnus-article-push-button)
4663 (define-key map gnus-down-mouse-3 'gnus-mime-button-menu)
4664 (dolist (c gnus-mime-button-commands)
4665 (define-key map (cadr c) (car c)))
4666 map))
4668 (easy-menu-define
4669 gnus-mime-button-menu gnus-mime-button-map "MIME button menu."
4670 `("MIME Part"
4671 ,@(mapcar (lambda (c)
4672 (vector (caddr c) (car c) :active t))
4673 gnus-mime-button-commands)))
4675 (defun gnus-mime-button-menu (event prefix)
4676 "Construct a context-sensitive menu of MIME commands."
4678 (save-window-excursion
4679 (let ((pos (event-start event)))
4680 (select-window (posn-window pos))
4681 (goto-char (posn-point pos))
4682 (gnus-article-check-buffer)
4683 (popup-menu gnus-mime-button-menu nil prefix))))
4685 (defun gnus-mime-view-all-parts (&optional handles)
4686 "View all the MIME parts."
4687 (interactive)
4688 (with-current-buffer gnus-article-buffer
4689 (let ((handles (or handles gnus-article-mime-handles))
4690 (mail-parse-charset gnus-newsgroup-charset)
4691 (mail-parse-ignored-charsets
4692 (with-current-buffer gnus-summary-buffer
4693 gnus-newsgroup-ignored-charsets)))
4694 (when handles
4695 (mm-remove-parts handles)
4696 (goto-char (point-min))
4698 (let ((inhibit-read-only t))
4699 (delete-region (point) (point-max))
4700 (mm-display-parts handles))))))
4702 (defun gnus-article-jump-to-part (n)
4703 "Jump to MIME part N."
4704 (interactive "P")
4705 (pop-to-buffer gnus-article-buffer)
4706 ;; FIXME: why is it necessary?
4707 (sit-for 0)
4708 (let ((parts (length gnus-article-mime-handle-alist)))
4709 (or n (setq n
4710 (string-to-number
4711 (read-string ;; Emacs 21 doesn't have `read-number'.
4712 (format "Jump to part (2..%s): " parts)))))
4713 (unless (and (integerp n) (<= n parts) (>= n 1))
4714 (setq n
4715 (progn
4716 (gnus-message 7 "Invalid part `%s', using %s instead."
4717 n parts)
4718 parts)))
4719 (gnus-message 9 "Jumping to part %s." n)
4720 (cond ((>= gnus-auto-select-part 1)
4721 (while (and (<= n parts)
4722 (not (gnus-article-goto-part n)))
4723 (setq n (1+ n))))
4724 ((< gnus-auto-select-part 0)
4725 (while (and (>= n 1)
4726 (not (gnus-article-goto-part n)))
4727 (setq n (1- n))))
4728 (t
4729 (gnus-article-goto-part n)))))
4731 (eval-when-compile
4732 (defsubst gnus-article-edit-part (handles &optional current-id)
4733 "Edit an article in order to delete a mime part.
4734 This function is exclusively used by `gnus-mime-save-part-and-strip'
4735 and `gnus-mime-delete-part', and not provided at run-time normally."
4736 (gnus-article-edit-article
4737 `(lambda ()
4738 (buffer-disable-undo)
4739 (erase-buffer)
4740 (let ((mail-parse-charset (or gnus-article-charset
4741 ',gnus-newsgroup-charset))
4742 (mail-parse-ignored-charsets
4743 (or gnus-article-ignored-charsets
4744 ',gnus-newsgroup-ignored-charsets))
4745 (mbl mml-buffer-list))
4746 (setq mml-buffer-list nil)
4747 (insert-buffer-substring gnus-original-article-buffer)
4748 (mime-to-mml ',handles)
4749 (setq gnus-article-mime-handles nil)
4750 (let ((mbl1 mml-buffer-list))
4751 (setq mml-buffer-list mbl)
4752 (set (make-local-variable 'mml-buffer-list) mbl1))
4753 (gnus-make-local-hook 'kill-buffer-hook)
4754 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
4755 `(lambda (no-highlight)
4756 (let ((mail-parse-charset (or gnus-article-charset
4757 ',gnus-newsgroup-charset))
4758 (message-options message-options)
4759 (message-options-set-recipient)
4760 (mail-parse-ignored-charsets
4761 (or gnus-article-ignored-charsets
4762 ',gnus-newsgroup-ignored-charsets)))
4763 (mml-to-mime)
4764 (mml-destroy-buffers)
4765 (remove-hook 'kill-buffer-hook
4766 'mml-destroy-buffers t)
4767 (kill-local-variable 'mml-buffer-list))
4768 (gnus-summary-edit-article-done
4769 ,(or (mail-header-references gnus-current-headers) "")
4770 ,(gnus-group-read-only-p)
4771 ,gnus-summary-buffer no-highlight))
4772 t)
4773 (gnus-article-edit-done)
4774 (gnus-summary-expand-window)
4775 (gnus-summary-show-article)
4776 (when (and current-id (integerp gnus-auto-select-part))
4777 (gnus-article-jump-to-part
4778 (if (text-property-any (point-min) (point-max)
4779 'gnus-part (+ current-id gnus-auto-select-part))
4780 (+ current-id gnus-auto-select-part)
4781 (with-current-buffer gnus-article-buffer
4782 (length gnus-article-mime-handle-alist)))))))
4784 (defun gnus-mime-replace-part (file)
4785 "Replace MIME part under point with an external body."
4786 ;; Useful if file has already been saved to disk
4787 (interactive
4788 (list
4789 (mm-with-multibyte
4790 (read-file-name "Replace MIME part with file: "
4791 (or mm-default-directory default-directory)
4792 nil nil))))
4793 (gnus-mime-save-part-and-strip file))
4795 (defun gnus-mime-save-part-and-strip (&optional file)
4796 "Save the MIME part under point then replace it with an external body.
4797 If FILE is given, use it for the external part."
4798 (interactive)
4799 (gnus-article-check-buffer)
4800 (when (gnus-group-read-only-p)
4801 (error "The current group does not support deleting of parts"))
4802 (when (mm-complicated-handles gnus-article-mime-handles)
4803 (error "\
4804 The current article has a complicated MIME structure, giving up..."))
4805 (let* ((data (get-text-property (point) 'gnus-data))
4806 (id (get-text-property (point) 'gnus-part))
4807 param
4808 (handles gnus-article-mime-handles))
4809 (unless file
4810 (setq file
4811 (and data (mm-save-part data "Delete MIME part and save to: "))))
4812 (when file
4813 (with-current-buffer (mm-handle-buffer data)
4814 (erase-buffer)
4815 (insert "Content-Type: " (mm-handle-media-type data))
4816 (mml-insert-parameter-string (cdr (mm-handle-type data))
4817 '(charset))
4818 ;; Add a filename for the sake of saving the part again.
4819 (mml-insert-parameter
4820 (mail-header-encode-parameter "name" (file-name-nondirectory file)))
4825 (setcdr data
4826 (cdr (mm-make-handle nil
4827 `("message/external-body"
4828 (access-type . "LOCAL-FILE")
4829 (name . ,file)))))
4830 ;; (set-buffer gnus-summary-buffer)
4831 (gnus-article-edit-part handles id))))
4833 ;; A function like `gnus-summary-save-parts' (`X m', `<MIME> <Extract all
4834 ;; parts...>') but with stripping would be nice.
4836 (defun gnus-mime-delete-part ()
4837 "Delete the MIME part under point.
4838 Replace it with some information about the removed part."
4839 (interactive)
4840 (gnus-article-check-buffer)
4841 (when (gnus-group-read-only-p)
4842 (error "The current group does not support deleting of parts"))
4843 (when (mm-complicated-handles gnus-article-mime-handles)
4844 (error "\
4845 The current article has a complicated MIME structure, giving up..."))
4846 (when (or gnus-expert-user
4847 (gnus-yes-or-no-p "\
4848 Deleting parts may malfunction or destroy the article; continue? "))
4849 (let* ((data (get-text-property (point) 'gnus-data))
4850 (id (get-text-property (point) 'gnus-part))
4851 (handles gnus-article-mime-handles)
4852 (none "(none)")
4853 (description
4854 (let ((desc (mm-handle-description data)))
4855 (when desc
4856 (mail-decode-encoded-word-string desc))))
4857 (filename
4858 (or (mail-content-type-get (mm-handle-disposition data) 'filename)
4859 none))
4860 (type (mm-handle-media-type data)))
4861 (unless data
4862 (error "No MIME part under point"))
4863 (with-current-buffer (mm-handle-buffer data)
4864 (let ((bsize (format "%s" (buffer-size))))
4865 (erase-buffer)
4866 (insert
4867 (concat
4874 (when description
4877 (setcdr data
4878 (cdr (mm-make-handle
4879 nil `("text/plain") nil nil
4880 (list "attachment")
4881 (format "Deleted attachment (%s bytes)" bsize))))))
4882 ;; (set-buffer gnus-summary-buffer)
4883 (gnus-article-edit-part handles id))))
4885 (defun gnus-mime-save-part ()
4886 "Save the MIME part under point."
4887 (interactive)
4888 (gnus-article-check-buffer)
4889 (let ((data (get-text-property (point) 'gnus-data)))
4890 (when data
4891 (mm-save-part data))))
4893 (defun gnus-mime-pipe-part ()
4894 "Pipe the MIME part under point to a process."
4895 (interactive)
4896 (gnus-article-check-buffer)
4897 (let ((data (get-text-property (point) 'gnus-data)))
4898 (when data
4899 (mm-pipe-part data))))
4901 (defun gnus-mime-view-part ()
4902 "Interactively choose a viewing method for the MIME part under point."
4903 (interactive)
4904 (gnus-article-check-buffer)
4905 (let ((data (get-text-property (point) 'gnus-data)))
4906 (when data
4907 (setq gnus-article-mime-handles
4908 (mm-merge-handles
4909 gnus-article-mime-handles (setq data (copy-sequence data))))
4910 (mm-interactively-view-part data))))
4912 (defun gnus-mime-view-part-as-type-internal ()
4913 (gnus-article-check-buffer)
4914 (let* ((handle (get-text-property (point) 'gnus-data))
4915 (name (or
4916 ;; Content-Type: foo/bar; name=...
4917 (mail-content-type-get (mm-handle-type handle) 'name)
4918 ;; Content-Disposition: attachment; filename=...
4919 (cdr (assq 'filename (cdr (mm-handle-disposition handle))))))
4920 (def-type (and name (mm-default-file-encoding name))))
4921 (or (and def-type (cons def-type 0))
4922 (and handle
4923 (equal (mm-handle-media-supertype handle) "text")
4924 '("text/plain" . 0))
4925 '("application/octet-stream" . 0))))
4927 (defun gnus-mime-view-part-as-type (&optional mime-type pred)
4928 "Choose a MIME media type, and view the part as such.
4929 If non-nil, PRED is a predicate to use during completion to limit the
4930 available media-types."
4931 (interactive)
4932 (unless mime-type
4933 (setq mime-type
4934 (let ((default (gnus-mime-view-part-as-type-internal)))
4935 (completing-read
4936 (format "View as MIME type (default %s): "
4937 (car default))
4938 (mapcar #'list (mailcap-mime-types))
4939 pred nil nil nil
4940 (car default)))))
4941 (gnus-article-check-buffer)
4942 (let ((handle (get-text-property (point) 'gnus-data)))
4943 (when handle
4944 (when (equal (mm-handle-media-type handle) "message/external-body")
4945 (unless (mm-handle-cache handle)
4946 (mm-extern-cache-contents handle))
4947 (setq handle (mm-handle-cache handle)))
4948 (setq handle
4949 (mm-make-handle (mm-handle-buffer handle)
4950 (cons mime-type (cdr (mm-handle-type handle)))
4951 (mm-handle-encoding handle)
4952 (mm-handle-undisplayer handle)
4953 (mm-handle-disposition handle)
4954 (mm-handle-description handle)
4955 nil
4956 (mm-handle-id handle)))
4957 (setq gnus-article-mime-handles
4958 (mm-merge-handles gnus-article-mime-handles handle))
4959 (when (mm-handle-displayed-p handle)
4960 (mm-remove-part handle))
4961 (gnus-mm-display-part handle))))
4963 (defun gnus-mime-copy-part (&optional handle arg)
4964 "Put the MIME part under point into a new buffer.
4965 If `auto-compression-mode' is enabled, compressed files like .gz and .bz2
4966 are decompressed."
4967 (interactive (list nil current-prefix-arg))
4968 (gnus-article-check-buffer)
4969 (unless handle
4970 (setq handle (get-text-property (point) 'gnus-data)))
4971 (when handle
4972 (let ((filename (or (mail-content-type-get (mm-handle-type handle)
4973 'name)
4974 (mail-content-type-get (mm-handle-disposition handle)
4975 'filename)))
4976 contents dont-decode charset coding-system)
4977 (mm-with-unibyte-buffer
4978 (mm-insert-part handle)
4979 (setq contents (or (condition-case nil
4980 (mm-decompress-buffer filename nil 'sig)
4981 (error
4982 (setq dont-decode t)
4983 nil))
4984 (buffer-string))))
4985 (setq filename (cond (filename (file-name-nondirectory filename))
4986 (dont-decode "*raw data*")
4987 (t "*decoded*")))
4988 (cond
4989 (dont-decode)
4990 ((not arg)
4991 (unless (setq charset (mail-content-type-get
4992 (mm-handle-type handle) 'charset))
4993 (unless (setq coding-system (mm-with-unibyte-buffer
4994 (insert contents)
4995 (mm-find-buffer-file-coding-system)))
4996 (setq charset gnus-newsgroup-charset))))
4997 ((numberp arg)
4998 (setq charset (or (cdr (assq arg
4999 gnus-summary-show-article-charset-alist))
5000 (mm-read-coding-system "Charset: ")))))
5001 (switch-to-buffer (generate-new-buffer filename))
5002 (if (or coding-system
5003 (and charset
5004 (setq coding-system (mm-charset-to-coding-system charset))
5005 (not (eq charset 'ascii))))
5006 (progn
5007 (mm-enable-multibyte)
5008 (insert (mm-decode-coding-string contents coding-system))
5009 (setq buffer-file-coding-system
5010 (if (boundp 'last-coding-system-used)
5011 (symbol-value 'last-coding-system-used)
5012 coding-system)))
5013 (mm-disable-multibyte)
5014 (insert contents)
5015 (setq buffer-file-coding-system mm-binary-coding-system))
5016 ;; We do it this way to make `normal-mode' set the appropriate mode.
5017 (unwind-protect
5018 (progn
5019 (setq buffer-file-name (expand-file-name filename))
5020 (normal-mode))
5021 (setq buffer-file-name nil))
5022 (goto-char (point-min)))))
5024 (defun gnus-mime-print-part (&optional handle filename)
5025 "Print the MIME part under point."
5026 (interactive (list nil (ps-print-preprint current-prefix-arg)))
5027 (gnus-article-check-buffer)
5028 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5029 (contents (and handle (mm-get-part handle)))
5030 (file (mm-make-temp-file (expand-file-name "mm." mm-tmp-directory)))
5031 (printer (mailcap-mime-info (mm-handle-media-type handle) "print")))
5032 (when contents
5033 (if printer
5034 (unwind-protect
5035 (progn
5036 (mm-save-part-to-file handle file)
5037 (call-process shell-file-name nil
5038 (generate-new-buffer " *mm*")
5039 nil
5040 shell-command-switch
5041 (mm-mailcap-command
5042 printer file (mm-handle-type handle))))
5043 (delete-file file))
5044 (with-temp-buffer
5045 (insert contents)
5046 (gnus-print-buffer))
5047 (ps-despool filename)))))
5049 (defun gnus-mime-inline-part (&optional handle arg)
5050 "Insert the MIME part under point into the current buffer.
5051 Compressed files like .gz and .bz2 are decompressed."
5052 (interactive (list nil current-prefix-arg))
5053 (gnus-article-check-buffer)
5054 (unless handle
5055 (setq handle (get-text-property (point) 'gnus-data)))
5056 (when handle
5057 (let ((b (point))
5058 (inhibit-read-only t)
5059 contents charset coding-system)
5060 (if (and (not arg) (mm-handle-undisplayer handle))
5061 (mm-remove-part handle)
5062 (mm-with-unibyte-buffer
5063 (mm-insert-part handle)
5064 (setq contents
5065 (or (mm-decompress-buffer
5066 (or (mail-content-type-get (mm-handle-type handle)
5067 'name)
5068 (mail-content-type-get (mm-handle-disposition handle)
5069 'filename))
5070 nil t)
5071 (buffer-string))))
5072 (cond
5073 ((not arg)
5074 (unless (setq charset (mail-content-type-get
5075 (mm-handle-type handle) 'charset))
5076 (unless (setq coding-system
5077 (mm-with-unibyte-buffer
5078 (insert contents)
5079 (mm-find-buffer-file-coding-system)))
5080 (setq charset gnus-newsgroup-charset))))
5081 ((numberp arg)
5082 (if (mm-handle-undisplayer handle)
5083 (mm-remove-part handle))
5084 (setq charset
5085 (or (cdr (assq arg
5086 gnus-summary-show-article-charset-alist))
5087 (mm-read-coding-system "Charset: "))))
5088 (t
5089 (if (mm-handle-undisplayer handle)
5090 (mm-remove-part handle))))
5091 (forward-line 2)
5092 (mm-insert-inline
5093 handle
5094 (if (or coding-system
5095 (and charset
5096 (setq coding-system
5097 (mm-charset-to-coding-system charset))
5098 (not (eq coding-system 'ascii))))
5099 (mm-decode-coding-string contents coding-system)
5100 (mm-string-to-multibyte contents)))
5101 (goto-char b)))))
5103 (defun gnus-mime-strip-charset-parameters (handle)
5104 "Strip charset parameters from HANDLE."
5105 (if (stringp (car handle))
5106 (mapc #'gnus-mime-strip-charset-parameters (cdr handle))
5107 (let* ((type (mm-handle-type (if (equal (mm-handle-media-type handle)
5108 "message/external-body")
5109 (progn
5110 (unless (mm-handle-cache handle)
5111 (mm-extern-cache-contents handle))
5112 (mm-handle-cache handle))
5113 handle)))
5114 (charset (assq 'charset (cdr type))))
5115 (when charset
5116 (delq charset type)))))
5118 (defun gnus-mime-view-part-as-charset (&optional handle arg)
5119 "Insert the MIME part under point into the current buffer using the
5120 specified charset."
5121 (interactive (list nil current-prefix-arg))
5122 (gnus-article-check-buffer)
5123 (let ((handle (or handle (get-text-property (point) 'gnus-data)))
5124 (fun (get-text-property (point) 'gnus-callback))
5125 (gnus-newsgroup-ignored-charsets 'gnus-all)
5126 gnus-newsgroup-charset form preferred parts)
5127 (when handle
5128 (when (prog1
5129 (and fun
5130 (setq gnus-newsgroup-charset
5131 (or (cdr (assq
5132 arg
5133 gnus-summary-show-article-charset-alist))
5134 (mm-read-coding-system "Charset: "))))
5135 (if (mm-handle-undisplayer handle)
5136 (mm-remove-part handle)))
5137 (gnus-mime-strip-charset-parameters handle)
5138 (when (and (consp (setq form (cdr-safe fun)))
5139 (setq form (ignore-errors
5140 (assq 'gnus-mime-display-alternative form)))
5141 (setq preferred (caddr form))
5142 (progn
5143 (when (eq (car preferred) 'quote)
5144 (setq preferred (cadr preferred)))
5145 (not (equal preferred
5146 (get-text-property (point) 'gnus-data))))
5147 (setq parts (get-text-property (point) 'gnus-part))
5148 (setq parts (cdr (assq parts
5149 gnus-article-mime-handle-alist)))
5150 (equal (mm-handle-media-type parts) "multipart/alternative")
5151 (setq parts (reverse (cdr parts))))
5152 (setcar (cddr form)
5153 (list 'quote (or (cadr (member preferred parts))
5154 (car parts)))))
5155 (funcall fun handle)))))
5157 (defun gnus-mime-view-part-externally (&optional handle)
5158 "View the MIME part under point with an external viewer."
5159 (interactive)
5160 (gnus-article-check-buffer)
5161 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5162 (mm-user-display-methods nil)
5163 (mm-inlined-types nil)
5164 (mail-parse-charset gnus-newsgroup-charset)
5165 (mail-parse-ignored-charsets
5166 (with-current-buffer gnus-summary-buffer
5167 gnus-newsgroup-ignored-charsets))
5168 (type (mm-handle-media-type handle))
5169 (method (mailcap-mime-info type))
5170 (mm-enable-external t))
5171 (if (not (stringp method))
5172 (gnus-mime-view-part-as-type
5173 nil (lambda (types) (stringp (mailcap-mime-info (car types)))))
5174 (when handle
5175 (if (mm-handle-undisplayer handle)
5176 (mm-remove-part handle)
5177 (mm-display-part handle))))))
5179 (defun gnus-mime-view-part-internally (&optional handle)
5180 "View the MIME part under point with an internal viewer.
5181 If no internal viewer is available, use an external viewer."
5182 (interactive)
5183 (gnus-article-check-buffer)
5184 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5185 (mm-inlined-types '(".*"))
5186 (mm-inline-large-images t)
5187 (mail-parse-charset gnus-newsgroup-charset)
5188 (mail-parse-ignored-charsets
5189 (with-current-buffer gnus-summary-buffer
5190 gnus-newsgroup-ignored-charsets))
5191 (inhibit-read-only t))
5192 (if (not (mm-inlinable-p handle))
5193 (gnus-mime-view-part-as-type
5194 nil (lambda (types) (mm-inlinable-p handle (car types))))
5195 (when handle
5196 (if (mm-handle-undisplayer handle)
5197 (mm-remove-part handle)
5198 (mm-display-part handle))))))
5200 (defun gnus-mime-action-on-part (&optional action)
5201 "Do something with the MIME attachment at \(point\)."
5202 (interactive
5203 (list (completing-read "Action: " gnus-mime-action-alist nil t)))
5204 (gnus-article-check-buffer)
5205 (let ((action-pair (assoc action gnus-mime-action-alist)))
5206 (if action-pair
5207 (funcall (cdr action-pair)))))
5209 (defun gnus-article-part-wrapper (n function &optional no-handle interactive)
5210 "Call FUNCTION on MIME part N.
5211 Unless NO-HANDLE, call FUNCTION with N-th MIME handle as it's only argument.
5212 If INTERACTIVE, call FUNCTION interactivly."
5213 (let (window frame)
5214 ;; Check whether the article is displayed.
5215 (unless (and (gnus-buffer-live-p gnus-article-buffer)
5216 (setq window (get-buffer-window gnus-article-buffer t))
5217 (frame-visible-p (setq frame (window-frame window))))
5218 (error "No article is displayed"))
5219 (with-current-buffer gnus-article-buffer
5220 ;; Check whether the article displays the right contents.
5221 (unless (with-current-buffer gnus-summary-buffer
5222 (eq gnus-current-article (gnus-summary-article-number)))
5223 (error "You should select the right article first"))
5224 (if n
5225 (setq n (prefix-numeric-value n))
5226 (let ((pt (point)))
5227 (setq n (or (get-text-property pt 'gnus-part)
5228 (and (not (bobp))
5229 (get-text-property (1- pt) 'gnus-part))
5230 (get-text-property (prog2
5231 (forward-line 1)
5232 (point)
5233 (goto-char pt))
5234 'gnus-part)
5235 (get-text-property
5236 (or (and (setq pt (previous-single-property-change
5237 pt 'gnus-part))
5238 (1- pt))
5239 (next-single-property-change (point) 'gnus-part)
5240 (point))
5241 'gnus-part)
5242 1))))
5243 ;; Check whether the specified part exists.
5244 (when (> n (length gnus-article-mime-handle-alist))
5245 (error "No such part")))
5246 (unless
5247 (progn
5248 ;; To select the window is needed so that the cursor
5249 ;; might be visible on the MIME button.
5250 (select-window (prog1
5251 window
5252 (setq window (selected-window))
5253 ;; Article may be displayed in the other frame.
5254 (gnus-select-frame-set-input-focus
5255 (prog1
5256 frame
5257 (setq frame (selected-frame))))))
5258 (when (gnus-article-goto-part n)
5259 ;; We point the cursor and the arrow at the MIME button
5260 ;; when the `function' prompt the user for something.
5261 (let ((cursor-in-non-selected-windows t)
5262 (overlay-arrow-string "=>")
5263 (overlay-arrow-position (point-marker)))
5264 (unwind-protect
5265 (cond
5266 ((and no-handle interactive)
5267 (call-interactively function))
5268 (no-handle
5269 (funcall function))
5270 (interactive
5271 (call-interactively
5272 function
5273 (cdr (assq n gnus-article-mime-handle-alist))))
5274 (t
5275 (funcall function
5276 (cdr (assq n gnus-article-mime-handle-alist)))))
5277 (set-marker overlay-arrow-position nil)
5278 (unless gnus-auto-select-part
5279 (gnus-select-frame-set-input-focus frame)
5280 (select-window window))))
5281 t))
5282 (if gnus-inhibit-mime-unbuttonizing
5283 ;; This is the default though the program shouldn't reach here.
5284 (error "No such part")
5285 ;; The part which doesn't have the MIME button is selected.
5286 ;; So, we display all the buttons and redo it.
5287 (let ((gnus-inhibit-mime-unbuttonizing t))
5288 (gnus-summary-show-article)
5289 (gnus-article-part-wrapper n function no-handle))))))
5291 (defun gnus-article-pipe-part (n)
5292 "Pipe MIME part N, which is the numerical prefix."
5293 (interactive "P")
5294 (gnus-article-part-wrapper n 'mm-pipe-part))
5296 (defun gnus-article-save-part (n)
5297 "Save MIME part N, which is the numerical prefix."
5298 (interactive "P")
5299 (gnus-article-part-wrapper n 'mm-save-part))
5301 (defun gnus-article-interactively-view-part (n)
5302 "View MIME part N interactively, which is the numerical prefix."
5303 (interactive "P")
5304 (gnus-article-part-wrapper n 'mm-interactively-view-part))
5306 (defun gnus-article-copy-part (n)
5307 "Copy MIME part N, which is the numerical prefix."
5308 (interactive "P")
5309 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
5311 (defun gnus-article-view-part-as-charset (n)
5312 "View MIME part N using a specified charset.
5313 N is the numerical prefix."
5314 (interactive "P")
5315 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
5317 (defun gnus-article-view-part-externally (n)
5318 "View MIME part N externally, which is the numerical prefix."
5319 (interactive "P")
5320 (gnus-article-part-wrapper n 'gnus-mime-view-part-externally))
5322 (defun gnus-article-inline-part (n)
5323 "Inline MIME part N, which is the numerical prefix."
5324 (interactive "P")
5325 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
5327 (defun gnus-article-save-part-and-strip (n)
5328 "Save MIME part N and replace it with an external body.
5329 N is the numerical prefix."
5330 (interactive "P")
5331 (gnus-article-part-wrapper n 'gnus-mime-save-part-and-strip t))
5333 (defun gnus-article-replace-part (n)
5334 "Replace MIME part N with an external body.
5335 N is the numerical prefix."
5336 (interactive "P")
5337 (gnus-article-part-wrapper n 'gnus-mime-replace-part t t))
5339 (defun gnus-article-delete-part (n)
5340 "Delete MIME part N and add some information about the removed part.
5341 N is the numerical prefix."
5342 (interactive "P")
5343 (gnus-article-part-wrapper n 'gnus-mime-delete-part t))
5345 (defun gnus-article-view-part-as-type (n)
5346 "Choose a MIME media type, and view part N as such.
5347 N is the numerical prefix."
5348 (interactive "P")
5349 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-type t))
5351 (defun gnus-article-mime-match-handle-first (condition)
5352 (if condition
5353 (let (n)
5354 (dolist (ihandle gnus-article-mime-handle-alist)
5355 (if (and (cond
5356 ((functionp condition)
5357 (funcall condition (cdr ihandle)))
5358 ((eq condition 'undisplayed)
5359 (not (or (mm-handle-undisplayer (cdr ihandle))
5360 (equal (mm-handle-media-type (cdr ihandle))
5361 "multipart/alternative"))))
5362 ((eq condition 'undisplayed-alternative)
5363 (not (mm-handle-undisplayer (cdr ihandle))))
5364 (t t))
5365 (gnus-article-goto-part (car ihandle))
5366 (or (not n) (< (car ihandle) n)))
5367 (setq n (car ihandle))))
5368 (or n 1))
5369 1))
5371 (defun gnus-article-view-part (&optional n)
5372 "View MIME part N, which is the numerical prefix."
5373 (interactive "P")
5374 (with-current-buffer gnus-article-buffer
5375 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
5376 gnus-article-mime-match-handle-function)))
5377 (when (> n (length gnus-article-mime-handle-alist))
5378 (error "No such part"))
5379 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
5380 (when (gnus-article-goto-part n)
5381 (if (equal (car handle) "multipart/alternative")
5382 (gnus-article-press-button)
5383 (when (eq (gnus-mm-display-part handle) 'internal)
5384 (gnus-set-window-start)))))))
5386 (defsubst gnus-article-mime-total-parts ()
5387 (if (bufferp (car gnus-article-mime-handles))
5388 1 ;; single part
5389 (1- (length gnus-article-mime-handles))))
5391 (defun gnus-mm-display-part (handle)
5392 "Display HANDLE and fix MIME button."
5393 (let ((id (get-text-property (point) 'gnus-part))
5394 (point (point))
5395 (inhibit-read-only t))
5396 (forward-line 1)
5397 (prog1
5398 (let ((window (selected-window))
5399 (mail-parse-charset gnus-newsgroup-charset)
5400 (mail-parse-ignored-charsets
5401 (if (gnus-buffer-live-p gnus-summary-buffer)
5402 (with-current-buffer gnus-summary-buffer
5403 gnus-newsgroup-ignored-charsets)
5404 nil)))
5405 (save-excursion
5406 (unwind-protect
5407 (let ((win (gnus-get-buffer-window (current-buffer) t))
5408 (beg (point)))
5409 (when win
5410 (select-window win))
5411 (goto-char point)
5412 (forward-line)
5413 (if (mm-handle-displayed-p handle)
5414 ;; This will remove the part.
5415 (mm-display-part handle)
5416 (save-restriction
5417 (narrow-to-region (point)
5418 (if (eobp) (point) (1+ (point))))
5419 (mm-display-part handle)
5420 ;; We narrow to the part itself and
5421 ;; then call the treatment functions.
5422 (goto-char (point-min))
5423 (forward-line 1)
5424 (narrow-to-region (point) (point-max))
5425 (gnus-treat-article
5426 nil id
5427 (gnus-article-mime-total-parts)
5428 (mm-handle-media-type handle)))))
5429 (if (window-live-p window)
5430 (select-window window)))))
5431 (goto-char point)
5432 (gnus-delete-line)
5433 (gnus-insert-mime-button
5434 handle id (list (mm-handle-displayed-p handle)))
5435 (goto-char point))))
5437 (defun gnus-article-goto-part (n)
5438 "Go to MIME part N."
5439 (gnus-goto-char (text-property-any (point-min) (point-max) 'gnus-part n)))
5441 (defun gnus-insert-mime-button (handle gnus-tmp-id &optional displayed)
5442 (let ((gnus-tmp-name
5443 (or (mail-content-type-get (mm-handle-type handle) 'name)
5444 (mail-content-type-get (mm-handle-disposition handle) 'filename)
5445 (mail-content-type-get (mm-handle-type handle) 'url)
5446 ""))
5447 (gnus-tmp-type (mm-handle-media-type handle))
5448 (gnus-tmp-description (or (mm-handle-description handle) ""))
5449 (gnus-tmp-dots
5450 (if (if displayed (car displayed)
5451 (mm-handle-displayed-p handle))
5452 "" "..."))
5453 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
5454 (buffer-size)))
5455 gnus-tmp-type-long b e)
5456 (when (string-match ".*/" gnus-tmp-name)
5457 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
5458 (setq gnus-tmp-type-long (concat gnus-tmp-type
5459 (and (not (equal gnus-tmp-name ""))
5460 (concat "; " gnus-tmp-name))))
5461 (unless (equal gnus-tmp-description "")
5462 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
5463 (unless (bolp)
5465 (setq b (point))
5466 (gnus-eval-format
5467 gnus-mime-button-line-format gnus-mime-button-line-format-alist
5468 `(keymap ,gnus-mime-button-map
5469 gnus-callback gnus-mm-display-part
5470 gnus-part ,gnus-tmp-id
5471 article-type annotation
5472 gnus-data ,handle))
5473 (setq e (if (bolp)
5474 ;; Exclude a newline.
5475 (1- (point))
5476 (point)))
5477 (when gnus-article-button-face
5478 (gnus-overlay-put (gnus-make-overlay b e nil t)
5479 'face gnus-article-button-face))
5480 (widget-convert-button
5481 'link b e
5482 :mime-handle handle
5483 :action 'gnus-widget-press-button
5484 :button-keymap gnus-mime-button-map
5485 :help-echo
5486 (lambda (widget/window &optional overlay pos)
5487 ;; Needed to properly clear the message due to a bug in
5488 ;; wid-edit (XEmacs only).
5489 (if (boundp 'help-echo-owns-message)
5490 (setq help-echo-owns-message t))
5491 (format
5492 "%S: %s the MIME part; %S: more options"
5493 (aref gnus-mouse-2 0)
5494 ;; XEmacs will get a single widget arg; Emacs 21 will get
5495 ;; window, overlay, position.
5496 (if (mm-handle-displayed-p
5497 (if overlay
5498 (with-current-buffer (gnus-overlay-buffer overlay)
5499 (widget-get (widget-at (gnus-overlay-start overlay))
5500 :mime-handle))
5501 (widget-get widget/window :mime-handle)))
5502 "hide" "show")
5503 (aref gnus-down-mouse-3 0))))))
5505 (defun gnus-widget-press-button (elems el)
5506 (goto-char (widget-get elems :from))
5507 (gnus-article-press-button))
5509 (defvar gnus-displaying-mime nil)
5511 (defun gnus-display-mime (&optional ihandles)
5512 "Display the MIME parts."
5513 (save-excursion
5514 (save-selected-window
5515 (let ((window (get-buffer-window gnus-article-buffer))
5516 (point (point)))
5517 (when window
5518 (select-window window)
5519 ;; We have to do this since selecting the window
5520 ;; may change the point. So we set the window point.
5521 (set-window-point window point)))
5522 (let ((handles ihandles)
5523 (inhibit-read-only t)
5524 handle)
5525 (cond (handles)
5526 ((setq handles (mm-dissect-buffer nil gnus-article-loose-mime))
5527 (when gnus-article-emulate-mime
5528 (mm-uu-dissect-text-parts handles)))
5529 (gnus-article-emulate-mime
5530 (setq handles (mm-uu-dissect))))
5531 (when (and (not ihandles)
5532 (not gnus-displaying-mime))
5533 ;; Top-level call; we clean up.
5534 (when gnus-article-mime-handles
5535 (mm-destroy-parts gnus-article-mime-handles)
5536 (setq gnus-article-mime-handle-alist nil));; A trick.
5537 (setq gnus-article-mime-handles handles)
5538 ;; We allow users to glean info from the handles.
5539 (when gnus-article-mime-part-function
5540 (gnus-mime-part-function handles)))
5541 (if (and handles
5542 (or (not (stringp (car handles)))
5543 (cdr handles)))
5544 (progn
5545 (when (and (not ihandles)
5546 (not gnus-displaying-mime))
5547 ;; Clean up for mime parts.
5548 (article-goto-body)
5549 (delete-region (point) (point-max)))
5550 (let ((gnus-displaying-mime t))
5551 (gnus-mime-display-part handles)))
5552 (save-restriction
5553 (article-goto-body)
5554 (narrow-to-region (point) (point-max))
5555 (gnus-treat-article nil 1 1)
5556 (widen)))
5557 (unless ihandles
5558 ;; Highlight the headers.
5559 (save-excursion
5560 (save-restriction
5561 (article-goto-body)
5562 (narrow-to-region (point-min) (point))
5563 (gnus-article-save-original-date
5564 (gnus-treat-article 'head)))))))
5565 ;; Cope with broken MIME messages.
5566 (goto-char (point-max))
5567 (unless (bolp)
5570 (defcustom gnus-mime-display-multipart-as-mixed nil
5573 If t, it overrides nil values of
5574 `gnus-mime-display-multipart-alternative-as-mixed' and
5575 `gnus-mime-display-multipart-related-as-mixed'."
5576 :group 'gnus-article-mime
5577 :type 'boolean)
5579 (defcustom gnus-mime-display-multipart-alternative-as-mixed nil
5581 :version "22.1"
5582 :group 'gnus-article-mime
5583 :type 'boolean)
5585 (defcustom gnus-mime-display-multipart-related-as-mixed nil
5589 `mm-discouraged-alternatives'\) images or other material inside a
5591 :version "22.1"
5592 :group 'gnus-article-mime
5593 :type 'boolean)
5595 (defun gnus-mime-display-part (handle)
5596 (cond
5597 ;; Maybe a broken MIME message.
5598 ((null handle))
5599 ;; Single part.
5600 ((not (stringp (car handle)))
5601 (gnus-mime-display-single handle))
5602 ;; User-defined multipart
5603 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
5604 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
5605 handle))
5606 ;; multipart/alternative
5607 ((and (equal (car handle) "multipart/alternative")
5608 (not (or gnus-mime-display-multipart-as-mixed
5609 gnus-mime-display-multipart-alternative-as-mixed)))
5610 (let ((id (1+ (length gnus-article-mime-handle-alist))))
5611 (push (cons id handle) gnus-article-mime-handle-alist)
5612 (gnus-mime-display-alternative (cdr handle) nil nil id)))
5613 ;; multipart/related
5614 ((and (equal (car handle) "multipart/related")
5615 (not (or gnus-mime-display-multipart-as-mixed
5616 gnus-mime-display-multipart-related-as-mixed)))
5617 ;;;!!!We should find the start part, but we just default
5618 ;;;!!!to the first part.
5619 ;;(gnus-mime-display-part (cadr handle))
5620 ;;;!!! Most multipart/related is an HTML message plus images.
5621 ;;;!!! Unfortunately we are unable to let W3 display those
5622 ;;;!!! included images, so we just display it as a mixed multipart.
5623 ;;(gnus-mime-display-mixed (cdr handle))
5624 ;;;!!! No, w3 can display everything just fine.
5625 (gnus-mime-display-part (cadr handle)))
5626 ((equal (car handle) "multipart/signed")
5627 (gnus-add-wash-type 'signed)
5628 (gnus-mime-display-security handle))
5629 ((equal (car handle) "multipart/encrypted")
5630 (gnus-add-wash-type 'encrypted)
5631 (gnus-mime-display-security handle))
5632 ;; Other multiparts are handled like multipart/mixed.
5633 (t
5634 (gnus-mime-display-mixed (cdr handle)))))
5636 (defun gnus-mime-part-function (handles)
5637 (if (stringp (car handles))
5638 (mapcar 'gnus-mime-part-function (cdr handles))
5639 (funcall gnus-article-mime-part-function handles)))
5641 (defun gnus-mime-display-mixed (handles)
5642 (mapcar 'gnus-mime-display-part handles))
5644 (defun gnus-mime-display-single (handle)
5645 (let ((type (mm-handle-media-type handle))
5646 (ignored gnus-ignored-mime-types)
5647 (not-attachment t)
5648 (move nil)
5649 display text)
5650 (catch 'ignored
5651 (progn
5652 (while ignored
5653 (when (string-match (pop ignored) type)
5654 (throw 'ignored nil)))
5655 (if (and (setq not-attachment
5656 (and (not (mm-inline-override-p handle))
5657 (or (not (mm-handle-disposition handle))
5658 (equal (car (mm-handle-disposition handle))
5659 "inline")
5660 (mm-attachment-override-p handle))))
5661 (mm-automatic-display-p handle)
5662 (or (and
5663 (mm-inlinable-p handle)
5664 (mm-inlined-p handle))
5665 (mm-automatic-external-display-p type)))
5666 (setq display t)
5667 (when (equal (mm-handle-media-supertype handle) "text")
5668 (setq text t)))
5669 (let ((id (1+ (length gnus-article-mime-handle-alist)))
5670 beg)
5671 (push (cons id handle) gnus-article-mime-handle-alist)
5672 (when (and display
5673 (equal (mm-handle-media-supertype handle) "message"))
5674 (insert-char
5676 (cond ((not (bolp)) 2)
5678 (t 1))))
5679 (when (or (not display)
5680 (not (gnus-unbuttonized-mime-type-p type)))
5681 (gnus-insert-mime-button
5682 handle id (list (or display (and not-attachment text))))
5683 (gnus-article-insert-newline)
5684 ;; Remember modify the number of forward lines.
5685 (setq move t))
5686 (setq beg (point))
5687 (cond
5688 (display
5689 (when move
5690 (forward-line -1)
5691 (setq beg (point)))
5692 (let ((mail-parse-charset gnus-newsgroup-charset)
5693 (mail-parse-ignored-charsets
5694 (save-excursion (condition-case ()
5695 (set-buffer gnus-summary-buffer)
5696 (error))
5697 gnus-newsgroup-ignored-charsets)))
5698 (mm-display-part handle t))
5699 (goto-char (point-max)))
5700 ((and text not-attachment)
5701 (when move
5702 (forward-line -1)
5703 (setq beg (point)))
5704 (gnus-article-insert-newline)
5705 (mm-insert-inline
5706 handle
5707 (let ((charset (or (mail-content-type-get (mm-handle-type handle)
5708 'charset)
5709 (and (equal type "text/calendar") 'utf-8))))
5710 (cond ((not charset)
5711 (mm-string-as-multibyte (mm-get-part handle)))
5712 ((eq charset 'gnus-decoded)
5713 (with-current-buffer (mm-handle-buffer handle)
5714 (buffer-string)))
5715 (t
5716 (mm-decode-string (mm-get-part handle) charset)))))
5717 (goto-char (point-max))))
5718 ;; Do highlighting.
5719 (save-excursion
5720 (save-restriction
5721 (narrow-to-region beg (point))
5722 (if (eq handle gnus-article-mime-handles)
5723 ;; The format=flowed case.
5724 (gnus-treat-article nil 1 1 (mm-handle-media-type handle))
5725 ;; Don't count signature parts that are never displayed.
5726 ;; The part number should be re-calculated supposing this
5727 ;; might be a message/rfc822 part.
5728 (let (handles)
5729 (dolist (part gnus-article-mime-handles)
5730 (unless (or (stringp part)
5731 (equal (car (mm-handle-type part))
5732 "application/pgp-signature"))
5733 (push part handles)))
5734 (gnus-treat-article
5735 nil (length (memq handle handles)) (length handles)
5736 (mm-handle-media-type handle)))))))))))
5738 (defun gnus-unbuttonized-mime-type-p (type)
5739 "Say whether TYPE is to be unbuttonized."
5740 (unless gnus-inhibit-mime-unbuttonizing
5741 (when (catch 'found
5742 (let ((types gnus-unbuttonized-mime-types))
5743 (while types
5744 (when (string-match (pop types) type)
5745 (throw 'found t)))))
5746 (not (catch 'found
5747 (let ((types gnus-buttonized-mime-types))
5748 (while types
5749 (when (string-match (pop types) type)
5750 (throw 'found t)))))))))
5752 (defun gnus-article-insert-newline ()
5753 "Insert a newline, but mark it as undeletable."
5754 (gnus-put-text-property
5757 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
5758 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
5759 (ihandles handles)
5760 (point (point))
5761 handle (inhibit-read-only t) from props begend not-pref)
5762 (save-window-excursion
5763 (save-restriction
5764 (when ibegend
5765 (narrow-to-region (car ibegend)
5766 (or (cdr ibegend)
5767 (progn
5768 (goto-char (car ibegend))
5769 (forward-line 2)
5770 (point))))
5771 (delete-region (point-min) (point-max))
5772 (mm-remove-parts handles))
5773 (setq begend (list (point-marker)))
5774 ;; Do the toggle.
5775 (unless (setq not-pref (cadr (member preferred ihandles)))
5776 (setq not-pref (car ihandles)))
5777 (when (or ibegend
5778 (not preferred)
5779 (not (gnus-unbuttonized-mime-type-p
5780 "multipart/alternative")))
5781 (gnus-add-text-properties
5782 (setq from (point))
5783 (progn
5784 (insert (format "%d. " id))
5785 (point))
5786 `(gnus-callback
5787 (lambda (handles)
5788 (unless ,(not ibegend)
5789 (setq gnus-article-mime-handle-alist
5790 ',gnus-article-mime-handle-alist))
5791 (gnus-mime-display-alternative
5792 ',ihandles ',not-pref ',begend ,id))
5793 keymap ,gnus-mime-button-map
5794 ,gnus-mouse-face-prop ,gnus-article-mouse-face
5795 face ,gnus-article-button-face
5796 gnus-part ,id
5797 article-type multipart))
5798 (widget-convert-button 'link from (point)
5799 :action 'gnus-widget-press-button
5800 :button-keymap gnus-widget-button-keymap)
5801 ;; Do the handles
5802 (while (setq handle (pop handles))
5803 (gnus-add-text-properties
5804 (setq from (point))
5805 (progn
5806 (insert (format "(%c) %-18s"
5807 (if (equal handle preferred) ?* ? )
5808 (mm-handle-media-type handle)))
5809 (point))
5810 `(gnus-callback
5811 (lambda (handles)
5812 (unless ,(not ibegend)
5813 (setq gnus-article-mime-handle-alist
5814 ',gnus-article-mime-handle-alist))
5815 (gnus-mime-display-alternative
5816 ',ihandles ',handle ',begend ,id))
5817 keymap ,gnus-mime-button-map
5818 ,gnus-mouse-face-prop ,gnus-article-mouse-face
5819 face ,gnus-article-button-face
5820 gnus-part ,id
5821 gnus-data ,handle))
5822 (widget-convert-button 'link from (point)
5823 :action 'gnus-widget-press-button
5824 :button-keymap gnus-widget-button-keymap)
5825 (insert " "))
5827 (when preferred
5828 (if (stringp (car preferred))
5829 (gnus-display-mime preferred)
5830 (let ((mail-parse-charset gnus-newsgroup-charset)
5831 (mail-parse-ignored-charsets
5832 (with-current-buffer gnus-summary-buffer
5833 gnus-newsgroup-ignored-charsets)))
5834 (mm-display-part preferred)
5835 ;; Do highlighting.
5836 (save-excursion
5837 (save-restriction
5838 (narrow-to-region (car begend) (point-max))
5839 (gnus-treat-article
5840 nil (length gnus-article-mime-handle-alist)
5841 (gnus-article-mime-total-parts)
5842 (mm-handle-media-type handle))))))
5843 (goto-char (point-max))
5844 (setcdr begend (point-marker)))))
5845 (when ibegend
5846 (goto-char point))))
5848 (defconst gnus-article-wash-status-strings
5849 (let ((alist '((cite "c" "Possible hidden citation text"
5850 " " "All citation text visible")
5851 (headers "h" "Hidden headers"
5852 " " "All headers visible.")
5853 (pgp "p" "Encrypted or signed message status hidden"
5854 " " "No hidden encryption nor digital signature status")
5855 (signature "s" "Signature has been hidden"
5856 " " "Signature is visible")
5857 (overstrike "o" "Overstrike (^H) characters applied"
5858 " " "No overstrike characters applied")
5859 (emphasis "e" "/*_Emphasis_*/ characters applied"
5860 " " "No /*_emphasis_*/ characters applied")))
5861 result)
5862 (dolist (entry alist result)
5863 (let ((key (nth 0 entry))
5864 (on (copy-sequence (nth 1 entry)))
5865 (on-help (nth 2 entry))
5866 (off (copy-sequence (nth 3 entry)))
5867 (off-help (nth 4 entry)))
5868 (put-text-property 0 1 'help-echo on-help on)
5869 (put-text-property 0 1 'help-echo off-help off)
5870 (push (list key on off) result))))
5871 "Alist of strings describing wash status in the mode line.
5872 Each entry has the form (KEY ON OF), where the KEY is a symbol
5873 representing the particular washing function, ON is the string to use
5874 in the article mode line when the washing function is active, and OFF
5875 is the string to use when it is inactive.")
5877 (defun gnus-article-wash-status-entry (key value)
5878 (let ((entry (assoc key gnus-article-wash-status-strings)))
5879 (if value (nth 1 entry) (nth 2 entry))))
5881 (defun gnus-article-wash-status ()
5882 "Return a string which display status of article washing."
5883 (with-current-buffer gnus-article-buffer
5884 (let ((cite (memq 'cite gnus-article-wash-types))
5885 (headers (memq 'headers gnus-article-wash-types))
5886 (boring (memq 'boring-headers gnus-article-wash-types))
5887 (pgp (memq 'pgp gnus-article-wash-types))
5888 (pem (memq 'pem gnus-article-wash-types))
5889 (signed (memq 'signed gnus-article-wash-types))
5890 (encrypted (memq 'encrypted gnus-article-wash-types))
5891 (signature (memq 'signature gnus-article-wash-types))
5892 (overstrike (memq 'overstrike gnus-article-wash-types))
5893 (emphasis (memq 'emphasis gnus-article-wash-types)))
5894 (concat
5895 (gnus-article-wash-status-entry 'cite cite)
5896 (gnus-article-wash-status-entry 'headers (or headers boring))
5897 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
5898 (gnus-article-wash-status-entry 'signature signature)
5899 (gnus-article-wash-status-entry 'overstrike overstrike)
5900 (gnus-article-wash-status-entry 'emphasis emphasis)))))
5902 (defun gnus-add-wash-type (type)
5903 "Add a washing of TYPE to the current status."
5904 (add-to-list 'gnus-article-wash-types type))
5906 (defun gnus-delete-wash-type (type)
5907 "Add a washing of TYPE to the current status."
5908 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
5910 (defun gnus-add-image (category image)
5911 "Add IMAGE of CATEGORY to the list of displayed images."
5912 (let ((entry (assq category gnus-article-image-alist)))
5913 (unless entry
5914 (setq entry (list category))
5915 (push entry gnus-article-image-alist))
5916 (nconc entry (list image))))
5918 (defun gnus-delete-images (category)
5919 "Delete all images in CATEGORY."
5920 (let ((entry (assq category gnus-article-image-alist)))
5921 (dolist (image (cdr entry))
5922 (gnus-remove-image image category))
5923 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
5924 (gnus-delete-wash-type category)))
5926 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
5928 (defun gnus-article-maybe-hide-headers ()
5929 "Hide unwanted headers if `gnus-have-all-headers' is nil.
5930 Provided for backwards compatibility."
5931 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
5932 (not (with-current-buffer gnus-summary-buffer
5933 gnus-have-all-headers)))
5934 (not gnus-inhibit-hiding))
5935 (gnus-article-hide-headers)))
5937 ;;; Article savers.
5939 (defun gnus-output-to-file (file-name)
5940 "Append the current article to a file named FILE-NAME.
5941 If `gnus-article-save-coding-system' is non-nil, it is used to encode
5942 text and used as the value of the coding cookie which is added to the
5943 top of a file. Otherwise, this function saves a raw article without
5944 the coding cookie."
5945 (let* ((artbuf (current-buffer))
5946 (file-name-coding-system nnmail-pathname-coding-system)
5947 (coding gnus-article-save-coding-system)
5948 (coding-system-for-read (if coding
5949 nil ;; Rely on the coding cookie.
5950 mm-text-coding-system))
5951 (coding-system-for-write (or coding
5952 mm-text-coding-system-for-write
5953 mm-text-coding-system))
5954 (exists (file-exists-p file-name)))
5955 (with-temp-buffer
5956 (when exists
5957 (insert-file-contents file-name)
5958 (goto-char (point-min))
5959 ;; Remove the existing coding cookie.
5961 (delete-region (match-beginning 0) (match-end 0))))
5962 (goto-char (point-max))
5963 (insert-buffer-substring artbuf)
5964 ;; Append newline at end of the buffer as separator, and then
5965 ;; save it to file.
5966 (goto-char (point-max))
5968 (when coding
5969 ;; If the coding system is not suitable to encode the text,
5970 ;; ask a user for a proper one.
5971 (when (fboundp 'select-safe-coding-system)
5972 (setq coding (coding-system-base
5973 (save-window-excursion
5974 (select-safe-coding-system (point-min) (point-max)
5975 coding))))
5976 (setq coding-system-for-write
5977 (or (cdr (assq coding '((mule-utf-8 . utf-8))))
5978 coding)))
5979 (goto-char (point-min))
5980 ;; Add the coding cookie.
5982 coding-system-for-write)))
5983 (if exists
5984 (progn
5985 (write-region (point-min) (point-max) file-name nil 'no-message)
5986 (message "Appended to %s" file-name))
5987 (write-region (point-min) (point-max) file-name))))
5988 t)
5990 (defun gnus-narrow-to-page (&optional arg)
5991 "Narrow the article buffer to a page.
5992 If given a numerical ARG, move forward ARG pages."
5993 (interactive "P")
5994 (setq arg (if arg (prefix-numeric-value arg) 0))
5995 (with-current-buffer gnus-article-buffer
5996 (goto-char (point-min))
5997 (widen)
5998 ;; Remove any old next/prev buttons.
5999 (when (gnus-visual-p 'page-marker)
6000 (let ((inhibit-read-only t))
6001 (gnus-remove-text-with-property 'gnus-prev)
6002 (gnus-remove-text-with-property 'gnus-next)))
6003 (if
6004 (cond ((< arg 0)
6005 (re-search-backward page-delimiter nil 'move (1+ (abs arg))))
6006 ((> arg 0)
6007 (re-search-forward page-delimiter nil 'move arg)))
6008 (goto-char (match-end 0))
6009 (save-excursion
6010 (goto-char (point-min))
6011 (setq gnus-page-broken
6012 (and (re-search-forward page-delimiter nil t) t))))
6013 (when gnus-page-broken
6014 (narrow-to-region
6015 (point)
6016 (if (re-search-forward page-delimiter nil 'move)
6017 (match-beginning 0)
6018 (point)))
6019 (when (and (gnus-visual-p 'page-marker)
6020 (> (point-min) (save-restriction (widen) (point-min))))
6021 (save-excursion
6022 (goto-char (point-min))
6023 (gnus-insert-prev-page-button)))
6024 (when (and (gnus-visual-p 'page-marker)
6025 (< (point-max) (save-restriction (widen) (point-max))))
6026 (save-excursion
6027 (goto-char (point-max))
6028 (gnus-insert-next-page-button))))))
6030 ;; Article mode commands
6032 (defun gnus-article-goto-next-page ()
6033 "Show the next page of the article."
6034 (interactive)
6035 (when (gnus-article-next-page)
6036 (goto-char (point-min))
6037 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
6040 (defun gnus-article-goto-prev-page ()
6041 "Show the previous page of the article."
6042 (interactive)
6043 (if (bobp)
6044 (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
6045 (gnus-article-prev-page nil)))
6047 ;; This is cleaner but currently breaks `gnus-pick-mode':
6048 ;;
6049 ;; (defun gnus-article-goto-next-page ()
6050 ;; "Show the next page of the article."
6051 ;; (interactive)
6052 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6053 ;; (gnus-summary-next-page)))
6054 ;;
6055 ;; (defun gnus-article-goto-prev-page ()
6056 ;; "Show the next page of the article."
6057 ;; (interactive)
6058 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6059 ;; (gnus-summary-prev-page)))
6061 (defun gnus-article-next-page (&optional lines)
6062 "Show the next page of the current article.
6063 If end of article, return non-nil. Otherwise return nil.
6064 Argument LINES specifies lines to be scrolled up."
6065 (interactive "p")
6066 (move-to-window-line -1)
6067 (if (and (not (and gnus-article-over-scroll
6068 (> (count-lines (window-start) (point-max))
6069 (+ (or lines (1- (window-height)))
6070 (or (and (boundp 'scroll-margin)
6071 (symbol-value 'scroll-margin))
6072 0)))))
6073 (save-excursion
6074 (end-of-line)
6075 (and (pos-visible-in-window-p) ;Not continuation line.
6076 (>= (1+ (point)) (point-max))))) ;Allow for trailing newline.
6077 ;; Nothing in this page.
6078 (if (or (not gnus-page-broken)
6079 (save-excursion
6080 (save-restriction
6081 (widen)
6082 (forward-line)
6083 (eobp)))) ;Real end-of-buffer?
6084 (progn
6085 (when gnus-article-over-scroll
6086 (gnus-article-next-page-1 lines))
6087 t) ;Nothing more.
6088 (gnus-narrow-to-page 1) ;Go to next page.
6089 nil)
6090 ;; More in this page.
6091 (gnus-article-next-page-1 lines)
6092 nil))
6094 (defmacro gnus-article-beginning-of-window ()
6095 "Move point to the beginning of the window.
6096 In Emacs, the point is placed at the line number which `scroll-margin'
6097 specifies."
6098 (if (featurep 'xemacs)
6099 '(move-to-window-line 0)
6100 '(move-to-window-line
6101 (min (max 0 scroll-margin)
6102 (max 1 (- (window-height)
6103 (if mode-line-format 1 0)
6104 (if header-line-format 1 0)))))))
6106 (defun gnus-article-next-page-1 (lines)
6107 (when (and (not (featurep 'xemacs))
6108 (numberp lines)
6109 (> lines 0)
6110 (numberp (symbol-value 'scroll-margin))
6111 (> (symbol-value 'scroll-margin) 0))
6112 ;; Protect against the bug that Emacs 21.x hangs up when scrolling up for
6113 ;; too many number of lines if `scroll-margin' is set as two or greater.
6114 (setq lines (min lines
6115 (max 0 (- (count-lines (window-start) (point-max))
6116 (symbol-value 'scroll-margin))))))
6117 (condition-case ()
6118 (let ((scroll-in-place nil))
6119 (scroll-up lines))
6120 (end-of-buffer
6121 ;; Long lines may cause an end-of-buffer error.
6122 (goto-char (point-max))))
6123 (gnus-article-beginning-of-window))
6125 (defun gnus-article-prev-page (&optional lines)
6126 "Show previous page of current article.
6127 Argument LINES specifies lines to be scrolled down."
6128 (interactive "p")
6129 (move-to-window-line 0)
6130 (if (and gnus-page-broken
6131 (bobp)
6132 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
6133 (progn
6134 (gnus-narrow-to-page -1) ;Go to previous page.
6135 (goto-char (point-max))
6136 (recenter (if gnus-article-over-scroll
6137 (if lines
6138 (max (+ lines (or (and (boundp 'scroll-margin)
6139 (symbol-value 'scroll-margin))
6140 0))
6141 3)
6142 (- (window-height) 2))
6143 -1)))
6144 (prog1
6145 (condition-case ()
6146 (let ((scroll-in-place nil))
6147 (scroll-down lines))
6148 (beginning-of-buffer
6149 (goto-char (point-min))))
6150 (gnus-article-beginning-of-window))))
6152 (defun gnus-article-only-boring-p ()
6153 "Decide whether there is only boring text remaining in the article.
6155 not have a face in `gnus-article-boring-faces'."
6156 (when (and gnus-article-skip-boring
6157 (boundp 'gnus-article-boring-faces)
6158 (symbol-value 'gnus-article-boring-faces))
6159 (save-excursion
6160 (let ((inhibit-point-motion-hooks t))
6161 (catch 'only-boring
6163 (forward-char -1)
6164 (when (not (gnus-intersection
6165 (gnus-faces-at (point))
6166 (symbol-value 'gnus-article-boring-faces)))
6167 (throw 'only-boring nil)))
6168 (throw 'only-boring t))))))
6170 (defun gnus-article-refer-article ()
6171 "Read article specified by message-id around point."
6172 (interactive)
6173 (save-excursion
6177 (let ((msg-id (concat "<" (match-string 0) ">")))
6178 (set-buffer gnus-summary-buffer)
6179 (gnus-summary-refer-article msg-id))
6180 (error "No references around point"))))
6182 (defun gnus-article-show-summary ()
6183 "Reconfigure windows to show summary buffer."
6184 (interactive)
6185 (if (not (gnus-buffer-live-p gnus-summary-buffer))
6186 (error "There is no summary buffer for this article buffer")
6187 (gnus-article-set-globals)
6188 (gnus-configure-windows 'article)
6189 (gnus-summary-goto-subject gnus-current-article)
6190 (gnus-summary-position-point)))
6192 (defun gnus-article-describe-briefly ()
6193 "Describe article mode commands briefly."
6194 (interactive)
6195 (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")))
6197 (defun gnus-article-summary-command ()
6198 "Execute the last keystroke in the summary buffer."
6199 (interactive)
6200 (let ((obuf (current-buffer))
6201 (owin (current-window-configuration))
6202 func)
6203 (switch-to-buffer gnus-article-current-summary 'norecord)
6204 (setq func (lookup-key (current-local-map) (this-command-keys)))
6205 (call-interactively func)
6206 (set-buffer obuf)
6207 (set-window-configuration owin)
6208 (set-window-point (get-buffer-window (current-buffer)) (point))))
6210 (defun gnus-article-summary-command-nosave ()
6211 "Execute the last keystroke in the summary buffer."
6212 (interactive)
6213 (let (func)
6214 (pop-to-buffer gnus-article-current-summary)
6215 (setq func (lookup-key (current-local-map) (this-command-keys)))
6216 (call-interactively func)))
6218 (defun gnus-article-check-buffer ()
6219 "Beep if not in an article buffer."
6220 (unless (equal major-mode 'gnus-article-mode)
6221 (error "Command invoked outside of a Gnus article buffer")))
6223 (defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
6224 "Read a summary buffer key sequence and execute it from the article buffer."
6225 (interactive "P")
6226 (gnus-article-check-buffer)
6227 (let ((nosaves
6228 '("q" "Q" "c" "r" "\C-c\C-f" "m" "a" "f"
6229 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
6230 "=" "^" "\M-^" "|"))
6231 (nosave-but-article
6233 "An" "Ap" [?A (meta return)] [?A delete]))
6234 (nosave-in-article
6235 '("AS" "\C-d"))
6236 (up-to-top
6237 '("n" "Gn" "p" "Gp"))
6238 keys new-sum-point)
6239 (with-current-buffer gnus-article-current-summary
6240 (let (gnus-pick-mode)
6241 (setq unread-command-events (nconc unread-command-events
6242 (list (or key last-command-event)))
6243 keys (if (featurep 'xemacs)
6244 (events-to-keys (read-key-sequence nil t))
6245 (read-key-sequence nil t)))))
6247 (message "")
6249 (cond
6250 ((eq (aref keys (1- (length keys))) ?\C-h)
6251 (gnus-article-describe-bindings (substring keys 0 -1)))
6252 ((or (member keys nosaves)
6253 (member keys nosave-but-article)
6254 (member keys nosave-in-article))
6255 (let (func)
6256 (save-window-excursion
6257 (pop-to-buffer gnus-article-current-summary)
6258 ;; We disable the pick minor mode commands.
6259 (let (gnus-pick-mode)
6260 (setq func (lookup-key (current-local-map) keys))))
6261 (if (or (not func)
6262 (numberp func))
6263 (ding)
6264 (unless (member keys nosave-in-article)
6265 (set-buffer gnus-article-current-summary))
6266 (call-interactively func)
6267 (setq new-sum-point (point)))
6268 (when (member keys nosave-but-article)
6269 (pop-to-buffer gnus-article-buffer))))
6270 (t
6271 ;; These commands should restore window configuration.
6272 (let ((obuf (current-buffer))
6273 (owin (current-window-configuration))
6274 win func in-buffer selected new-sum-start new-sum-hscroll err)
6275 (cond (not-restore-window
6276 (pop-to-buffer gnus-article-current-summary)
6277 (setq win (selected-window)))
6278 ((setq win (get-buffer-window gnus-article-current-summary))
6279 (select-window win))
6280 (t
6281 (let ((summary-buffer gnus-article-current-summary))
6282 (gnus-configure-windows 'article)
6283 (unless (setq win (get-buffer-window summary-buffer 'visible))
6284 (let ((gnus-buffer-configuration
6285 '(article ((vertical 1.0
6286 (summary 0.25 point)
6287 (article 1.0))))))
6288 (gnus-configure-windows 'article))
6289 (setq win (get-buffer-window summary-buffer 'visible)))
6290 (gnus-select-frame-set-input-focus (window-frame win))
6291 (select-window win))))
6292 (setq in-buffer (current-buffer))
6293 ;; We disable the pick minor mode commands.
6294 (if (and (setq func (let (gnus-pick-mode)
6295 (lookup-key (current-local-map) keys)))
6296 (functionp func)
6297 (condition-case code
6298 (progn
6299 (call-interactively func)
6300 t)
6301 (error
6302 (setq err code)
6303 nil)))
6304 (progn
6305 (when (eq win (selected-window))
6306 (setq new-sum-point (point)
6307 new-sum-start (window-start win)
6308 new-sum-hscroll (window-hscroll win)))
6309 (when (or (eq in-buffer (current-buffer))
6310 (when (eq obuf (current-buffer))
6311 (set-buffer in-buffer)
6312 t))
6313 (setq selected (gnus-summary-select-article))
6314 (set-buffer obuf)
6315 (unless not-restore-window
6316 (set-window-configuration owin))
6317 (when (and (eq selected 'old)
6318 new-sum-point)
6319 (set-window-start (get-buffer-window (current-buffer))
6320 1)
6321 (set-window-point (get-buffer-window (current-buffer))
6322 (if (article-goto-body)
6323 (1- (point))
6324 (point))))
6325 (when (and (not not-restore-window)
6326 new-sum-point
6327 (with-current-buffer (window-buffer win)
6328 (eq major-mode 'gnus-summary-mode)))
6329 (set-window-point win new-sum-point)
6330 (set-window-start win new-sum-start)
6331 (set-window-hscroll win new-sum-hscroll))))
6332 (set-window-configuration owin)
6333 (if err
6334 (signal (car err) (cdr err))
6335 (ding))))))))
6337 (defun gnus-article-read-summary-send-keys ()
6338 (interactive)
6339 (let ((unread-command-events (list (gnus-character-to-event ?S))))
6340 (gnus-article-read-summary-keys)))
6342 (defun gnus-article-describe-key (key)
6343 "Display documentation of the function invoked by KEY.
6344 KEY is a string or a vector."
6345 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6346 (read-key-sequence "Describe key: "))))
6347 (gnus-article-check-buffer)
6348 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6349 gnus-article-read-summary-send-keys))
6350 (with-current-buffer gnus-article-current-summary
6351 (setq unread-command-events
6352 (if (featurep 'xemacs)
6353 (append key nil)
6354 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6355 (list 'meta (- x 128))
6356 x))
6357 key)))
6358 (let ((cursor-in-echo-area t)
6359 gnus-pick-mode)
6360 (describe-key (read-key-sequence nil t))))
6361 (describe-key key)))
6363 (defun gnus-article-describe-key-briefly (key &optional insert)
6364 "Display documentation of the function invoked by KEY.
6365 KEY is a string or a vector."
6366 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6367 (read-key-sequence "Describe key: "))
6368 current-prefix-arg))
6369 (gnus-article-check-buffer)
6370 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6371 gnus-article-read-summary-send-keys))
6372 (with-current-buffer gnus-article-current-summary
6373 (setq unread-command-events
6374 (if (featurep 'xemacs)
6375 (append key nil)
6376 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6377 (list 'meta (- x 128))
6378 x))
6379 key)))
6380 (let ((cursor-in-echo-area t)
6381 gnus-pick-mode)
6382 (describe-key-briefly (read-key-sequence nil t) insert)))
6383 (describe-key-briefly key insert)))
6385 ;;`gnus-agent-mode' in gnus-agent.el will define it.
6386 (defvar gnus-agent-summary-mode)
6387 (defvar gnus-draft-mode)
6389 (defun gnus-article-describe-bindings (&optional prefix)
6390 "Show a list of all defined keys, and their definitions.
6391 The optional argument PREFIX, if non-nil, should be a key sequence;
6392 then we display only bindings that start with that prefix."
6393 (interactive)
6394 (gnus-article-check-buffer)
6395 (let ((keymap (copy-keymap gnus-article-mode-map))
6396 (map (copy-keymap gnus-article-send-map))
6397 (sumkeys (where-is-internal 'gnus-article-read-summary-keys))
6398 agent draft)
6399 (define-key keymap "S" map)
6400 (define-key map [t] nil)
6401 (with-current-buffer gnus-article-current-summary
6402 (set-keymap-parent map (key-binding "S"))
6403 (let (def gnus-pick-mode)
6404 (dolist (key sumkeys)
6405 (when (setq def (key-binding key))
6406 (define-key keymap key def))))
6407 (when (boundp 'gnus-agent-summary-mode)
6408 (setq agent gnus-agent-summary-mode))
6409 (when (boundp 'gnus-draft-mode)
6410 (setq draft gnus-draft-mode)))
6411 (with-temp-buffer
6412 (use-local-map keymap)
6413 (set (make-local-variable 'gnus-agent-summary-mode) agent)
6414 (set (make-local-variable 'gnus-draft-mode) draft)
6415 (describe-bindings prefix))
6416 (let ((item `((lambda (prefix)
6417 (with-current-buffer ,(current-buffer)
6418 (gnus-article-describe-bindings prefix)))
6419 ,prefix)))
6420 (with-current-buffer (if (fboundp 'help-buffer)
6421 (let (help-xref-following) (help-buffer))
6422 "*Help*") ;; Emacs 21
6423 (setq help-xref-stack-item item)))))
6425 (defun gnus-article-reply-with-original (&optional wide)
6426 "Start composing a reply mail to the current message.
6427 The text in the region will be yanked. If the region isn't active,
6428 the entire article will be yanked."
6429 (interactive)
6430 (let ((article (cdr gnus-article-current))
6431 contents)
6432 (if (not (gnus-region-active-p))
6433 (with-current-buffer gnus-summary-buffer
6434 (gnus-summary-reply (list (list article)) wide))
6435 (setq contents (buffer-substring (point) (mark t)))
6436 ;; Deactivate active regions.
6437 (when (and (boundp 'transient-mark-mode)
6438 transient-mark-mode)
6439 (setq mark-active nil))
6440 (with-current-buffer gnus-summary-buffer
6441 (gnus-summary-reply
6442 (list (list article contents)) wide)))))
6444 (defun gnus-article-wide-reply-with-original ()
6445 "Start composing a wide reply mail to the current message.
6446 The text in the region will be yanked. If the region isn't active,
6447 the entire article will be yanked."
6448 (interactive)
6449 (gnus-article-reply-with-original t))
6451 (defun gnus-article-followup-with-original ()
6452 "Compose a followup to the current article.
6453 The text in the region will be yanked. If the region isn't active,
6454 the entire article will be yanked."
6455 (interactive)
6456 (let ((article (cdr gnus-article-current))
6457 contents)
6458 (if (not (gnus-region-active-p))
6459 (with-current-buffer gnus-summary-buffer
6460 (gnus-summary-followup (list (list article))))
6461 (setq contents (buffer-substring (point) (mark t)))
6462 ;; Deactivate active regions.
6463 (when (and (boundp 'transient-mark-mode)
6464 transient-mark-mode)
6465 (setq mark-active nil))
6466 (with-current-buffer gnus-summary-buffer
6467 (gnus-summary-followup
6468 (list (list article contents)))))))
6470 (defun gnus-article-hide (&optional arg force)
6471 "Hide all the gruft in the current article.
6472 This means that signatures, cited text and (some) headers will be
6473 hidden.
6474 If given a prefix, show the hidden text instead."
6475 (interactive (append (gnus-article-hidden-arg) (list 'force)))
6476 (gnus-article-hide-headers arg)
6477 (gnus-article-hide-list-identifiers arg)
6478 (gnus-article-hide-citation-maybe arg force)
6479 (gnus-article-hide-signature arg))
6481 (defun gnus-article-maybe-highlight ()
6482 "Do some article highlighting if article highlighting is requested."
6483 (when (gnus-visual-p 'article-highlight 'highlight)
6484 (gnus-article-highlight-some)))
6486 (defun gnus-check-group-server ()
6487 ;; Make sure the connection to the server is alive.
6488 (unless (gnus-server-opened
6489 (gnus-find-method-for-group gnus-newsgroup-name))
6490 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
6491 (gnus-request-group gnus-newsgroup-name t)))
6493 (eval-when-compile
6494 (autoload 'nneething-get-file-name "nneething"))
6496 (defun gnus-request-article-this-buffer (article group)
6497 "Get an article and insert it into this buffer."
6498 (let (do-update-line sparse-header)
6499 (prog1
6500 (save-excursion
6501 (erase-buffer)
6502 (gnus-kill-all-overlays)
6503 (setq group (or group gnus-newsgroup-name))
6505 ;; Using `gnus-request-article' directly will insert the article into
6506 ;; `nntp-server-buffer' - so we'll save some time by not having to
6507 ;; copy it from the server buffer into the article buffer.
6509 ;; We only request an article by message-id when we do not have the
6510 ;; headers for it, so we'll have to get those.
6511 (when (stringp article)
6512 (gnus-read-header article))
6514 ;; If the article number is negative, that means that this article
6515 ;; doesn't belong in this newsgroup (possibly), so we find its
6516 ;; message-id and request it by id instead of number.
6517 (when (and (numberp article)
6518 gnus-summary-buffer
6519 (get-buffer gnus-summary-buffer)
6520 (gnus-buffer-exists-p gnus-summary-buffer))
6521 (with-current-buffer gnus-summary-buffer
6522 (let ((header (gnus-summary-article-header article)))
6523 (when (< article 0)
6524 (cond
6525 ((memq article gnus-newsgroup-sparse)
6526 ;; This is a sparse gap article.
6527 (setq do-update-line article)
6528 (setq article (mail-header-id header))
6529 (setq sparse-header (gnus-read-header article))
6530 (setq gnus-newsgroup-sparse
6531 (delq article gnus-newsgroup-sparse)))
6532 ((vectorp header)
6533 ;; It's a real article.
6534 (setq article (mail-header-id header)))
6535 (t
6536 ;; It is an extracted pseudo-article.
6537 (setq article 'pseudo)
6538 (gnus-request-pseudo-article header))))
6540 (let ((method (gnus-find-method-for-group
6541 gnus-newsgroup-name)))
6542 (when (and (eq (car method) 'nneething)
6543 (vectorp header))
6544 (let ((dir (nneething-get-file-name
6545 (mail-header-id header))))
6546 (when (and (stringp dir)
6547 (file-directory-p dir))
6548 (setq article 'nneething)
6549 (gnus-group-enter-directory dir))))))))
6551 (cond
6552 ;; Refuse to select canceled articles.
6553 ((and (numberp article)
6554 gnus-summary-buffer
6555 (get-buffer gnus-summary-buffer)
6556 (gnus-buffer-exists-p gnus-summary-buffer)
6557 (eq (cdr (with-current-buffer gnus-summary-buffer
6558 (assq article gnus-newsgroup-reads)))
6559 gnus-canceled-mark))
6560 nil)
6561 ;; We first check `gnus-original-article-buffer'.
6562 ((and (get-buffer gnus-original-article-buffer)
6563 (numberp article)
6564 (with-current-buffer gnus-original-article-buffer
6565 (and (equal (car gnus-original-article) group)
6566 (eq (cdr gnus-original-article) article))))
6567 (insert-buffer-substring gnus-original-article-buffer)
6568 'article)
6569 ;; Check the backlog.
6570 ((and gnus-keep-backlog
6571 (gnus-backlog-request-article group article (current-buffer)))
6572 'article)
6573 ;; Check asynchronous pre-fetch.
6574 ((gnus-async-request-fetched-article group article (current-buffer))
6575 (gnus-async-prefetch-next group article gnus-summary-buffer)
6576 (when (and (numberp article) gnus-keep-backlog)
6577 (gnus-backlog-enter-article group article (current-buffer)))
6578 'article)
6579 ;; Check the cache.
6580 ((and gnus-use-cache
6581 (numberp article)
6582 (gnus-cache-request-article article group))
6583 'article)
6584 ;; Check the agent cache.
6585 ((gnus-agent-request-article article group)
6586 'article)
6587 ;; Get the article and put into the article buffer.
6588 ((or (stringp article)
6589 (numberp article))
6590 (let ((gnus-override-method gnus-override-method)
6591 (methods (and (stringp article)
6592 gnus-refer-article-method))
6593 (backend (car (gnus-find-method-for-group
6594 gnus-newsgroup-name)))
6595 result
6596 (inhibit-read-only t))
6597 (if (or (not (listp methods))
6598 (and (symbolp (car methods))
6599 (assq (car methods) nnoo-definition-alist)))
6600 (setq methods (list methods)))
6601 (when (and (null gnus-override-method)
6602 methods)
6603 (setq gnus-override-method (pop methods)))
6604 (while (not result)
6605 (when (eq gnus-override-method 'current)
6606 (setq gnus-override-method
6607 (with-current-buffer gnus-summary-buffer
6608 gnus-current-select-method)))
6609 (erase-buffer)
6610 (gnus-kill-all-overlays)
6611 (let ((gnus-newsgroup-name group))
6612 (gnus-check-group-server))
6613 (cond
6614 ((gnus-request-article article group (current-buffer))
6615 (when (numberp article)
6616 (gnus-async-prefetch-next group article
6617 gnus-summary-buffer)
6618 (when gnus-keep-backlog
6619 (gnus-backlog-enter-article
6620 group article (current-buffer))))
6621 (setq result 'article))
6622 (methods
6623 (setq gnus-override-method (pop methods)))
6624 ((not (string-match "^400 "
6625 (nnheader-get-report backend)))
6626 ;; If we get 400 server disconnect, reconnect and
6627 ;; retry; otherwise, assume the article has expired.
6628 (setq result 'done))))
6629 (and (eq result 'article) 'article)))
6630 ;; It was a pseudo.
6631 (t article)))
6633 ;; Associate this article with the current summary buffer.
6634 (setq gnus-article-current-summary gnus-summary-buffer)
6636 ;; Take the article from the original article buffer
6637 ;; and place it in the buffer it's supposed to be in.
6638 (when (and (get-buffer gnus-article-buffer)
6639 (equal (buffer-name (current-buffer))
6640 (buffer-name (get-buffer gnus-article-buffer))))
6641 (save-excursion
6642 (if (get-buffer gnus-original-article-buffer)
6643 (set-buffer gnus-original-article-buffer)
6644 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
6645 (buffer-disable-undo)
6646 (setq major-mode 'gnus-original-article-mode)
6647 (setq buffer-read-only t))
6648 (let ((inhibit-read-only t))
6649 (erase-buffer)
6650 (insert-buffer-substring gnus-article-buffer))
6651 (setq gnus-original-article (cons group article)))
6653 ;; Decode charsets.
6654 (run-hooks 'gnus-article-decode-hook)
6655 ;; Mark article as decoded or not.
6656 (setq gnus-article-decoded-p gnus-article-decode-hook))
6658 ;; Update sparse articles.
6659 (when (and do-update-line
6660 (or (numberp article)
6661 (stringp article)))
6662 (let ((buf (current-buffer)))
6663 (set-buffer gnus-summary-buffer)
6664 (gnus-summary-update-article do-update-line sparse-header)
6665 (gnus-summary-goto-subject do-update-line nil t)
6666 (set-window-point (gnus-get-buffer-window (current-buffer) t)
6667 (point))
6668 (set-buffer buf))))))
6670 ;;;
6671 ;;; Article editing
6672 ;;;
6674 (defcustom gnus-article-edit-mode-hook nil
6675 "Hook run in article edit mode buffers."
6676 :group 'gnus-article-various
6677 :type 'hook)
6679 (defvar gnus-article-edit-done-function nil)
6681 (defvar gnus-article-edit-mode-map nil)
6683 ;; Should we be using derived.el for this?
6684 (unless gnus-article-edit-mode-map
6685 (setq gnus-article-edit-mode-map (make-keymap))
6686 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
6688 (gnus-define-keys gnus-article-edit-mode-map
6689 "\C-c?" describe-mode
6690 "\C-c\C-c" gnus-article-edit-done
6691 "\C-c\C-k" gnus-article-edit-exit
6692 "\C-c\C-f\C-t" message-goto-to
6693 "\C-c\C-f\C-o" message-goto-from
6694 "\C-c\C-f\C-b" message-goto-bcc
6695 ;;"\C-c\C-f\C-w" message-goto-fcc
6696 "\C-c\C-f\C-c" message-goto-cc
6697 "\C-c\C-f\C-s" message-goto-subject
6698 "\C-c\C-f\C-r" message-goto-reply-to
6699 "\C-c\C-f\C-n" message-goto-newsgroups
6700 "\C-c\C-f\C-d" message-goto-distribution
6701 "\C-c\C-f\C-f" message-goto-followup-to
6702 "\C-c\C-f\C-m" message-goto-mail-followup-to
6703 "\C-c\C-f\C-k" message-goto-keywords
6704 "\C-c\C-f\C-u" message-goto-summary
6705 "\C-c\C-f\C-i" message-insert-or-toggle-importance
6706 "\C-c\C-f\C-a" message-generate-unsubscribed-mail-followup-to
6707 "\C-c\C-b" message-goto-body
6708 "\C-c\C-i" message-goto-signature
6710 "\C-c\C-t" message-insert-to
6711 "\C-c\C-n" message-insert-newsgroups
6712 "\C-c\C-o" message-sort-headers
6713 "\C-c\C-e" message-elide-region
6714 "\C-c\C-v" message-delete-not-region
6715 "\C-c\C-z" message-kill-to-signature
6717 "\C-c\C-a" mml-attach-file
6718 "\C-a" message-beginning-of-line
6720 "\M-;" comment-region)
6722 (gnus-define-keys (gnus-article-edit-wash-map
6723 "\C-c\C-w" gnus-article-edit-mode-map)
6724 "f" gnus-article-edit-full-stops))
6726 (easy-menu-define
6727 gnus-article-edit-mode-field-menu gnus-article-edit-mode-map ""
6728 '("Field"
6729 ["Fetch To" message-insert-to t]
6730 ["Fetch Newsgroups" message-insert-newsgroups t]
6731 "----"
6732 ["To" message-goto-to t]
6733 ["From" message-goto-from t]
6734 ["Subject" message-goto-subject t]
6735 ["Cc" message-goto-cc t]
6736 ["Reply-To" message-goto-reply-to t]
6737 ["Summary" message-goto-summary t]
6738 ["Keywords" message-goto-keywords t]
6739 ["Newsgroups" message-goto-newsgroups t]
6740 ["Followup-To" message-goto-followup-to t]
6741 ["Mail-Followup-To" message-goto-mail-followup-to t]
6742 ["Distribution" message-goto-distribution t]
6743 ["Body" message-goto-body t]
6744 ["Signature" message-goto-signature t]))
6746 (define-derived-mode gnus-article-edit-mode message-mode "Article Edit"
6747 "Major mode for editing articles.
6748 This is an extended text-mode.
6751 (make-local-variable 'gnus-article-edit-done-function)
6752 (make-local-variable 'gnus-prev-winconf)
6753 (set (make-local-variable 'font-lock-defaults)
6754 '(message-font-lock-keywords t))
6755 (set (make-local-variable 'mail-header-separator) "")
6756 (set (make-local-variable 'gnus-article-edit-mode) t)
6757 (easy-menu-add message-mode-field-menu message-mode-map)
6758 (mml-mode)
6759 (setq buffer-read-only nil)
6760 (buffer-enable-undo)
6761 (widen))
6763 (defun gnus-article-edit (&optional force)
6764 "Edit the current article.
6765 This will have permanent effect only in mail groups.
6766 If FORCE is non-nil, allow editing of articles even in read-only
6767 groups."
6768 (interactive "P")
6769 (when (and (not force)
6770 (gnus-group-read-only-p))
6771 (error "The current newsgroup does not support article editing"))
6772 (gnus-article-date-original)
6773 (gnus-article-edit-article
6774 'ignore
6775 `(lambda (no-highlight)
6776 'ignore
6777 (gnus-summary-edit-article-done
6778 ,(or (mail-header-references gnus-current-headers) "")
6779 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
6781 (defun gnus-article-edit-article (start-func exit-func &optional quiet)
6782 "Start editing the contents of the current article buffer."
6783 (let ((winconf (current-window-configuration)))
6784 (set-buffer gnus-article-buffer)
6785 (let ((message-auto-save-directory
6786 ;; Don't associate the article buffer with a draft file.
6787 nil))
6788 (gnus-article-edit-mode))
6789 (funcall start-func)
6790 (set-buffer-modified-p nil)
6791 (gnus-configure-windows 'edit-article)
6792 (setq gnus-article-edit-done-function exit-func)
6793 (setq gnus-prev-winconf winconf)
6794 (unless quiet
6795 (gnus-message 6 "C-c C-c to end edits"))))
6797 (defun gnus-article-edit-done (&optional arg)
6798 "Update the article edits and exit."
6799 (interactive "P")
6800 (let ((func gnus-article-edit-done-function)
6801 (buf (current-buffer))
6802 (start (window-start))
6803 (p (point))
6804 (winconf gnus-prev-winconf))
6805 (widen) ;; Widen it in case that users narrowed the buffer.
6806 (funcall func arg)
6807 (set-buffer buf)
6808 ;; The cache and backlog have to be flushed somewhat.
6809 (when gnus-keep-backlog
6810 (gnus-backlog-remove-article
6811 (car gnus-article-current) (cdr gnus-article-current)))
6812 ;; Flush original article as well.
6813 (when (get-buffer gnus-original-article-buffer)
6814 (with-current-buffer gnus-original-article-buffer
6815 (setq gnus-original-article nil)))
6816 (when gnus-use-cache
6817 (gnus-cache-update-article
6818 (car gnus-article-current) (cdr gnus-article-current)))
6819 ;; We remove all text props from the article buffer.
6820 (kill-all-local-variables)
6821 (set-text-properties (point-min) (point-max) nil)
6822 (gnus-article-mode)
6823 (set-window-configuration winconf)
6824 (set-buffer buf)
6825 (set-window-start (get-buffer-window buf) start)
6826 (set-window-point (get-buffer-window buf) (point)))
6827 (gnus-summary-show-article))
6829 (defun gnus-article-edit-exit ()
6830 "Exit the article editing without updating."
6831 (interactive)
6832 (when (or (not (buffer-modified-p))
6833 (yes-or-no-p "Article modified; kill anyway? "))
6834 (let ((curbuf (current-buffer))
6835 (p (point))
6836 (window-start (window-start)))
6837 (erase-buffer)
6838 (if (gnus-buffer-live-p gnus-original-article-buffer)
6839 (insert-buffer-substring gnus-original-article-buffer))
6840 (let ((winconf gnus-prev-winconf))
6841 (kill-all-local-variables)
6842 (gnus-article-mode)
6843 (set-window-configuration winconf)
6844 ;; Tippy-toe some to make sure that point remains where it was.
6845 (save-current-buffer
6846 (set-buffer curbuf)
6847 (set-window-start (get-buffer-window (current-buffer)) window-start)
6848 (goto-char p))))
6849 (gnus-summary-show-article)))
6851 (defun gnus-article-edit-full-stops ()
6852 "Interactively repair spacing at end of sentences."
6853 (interactive)
6854 (save-excursion
6855 (goto-char (point-min))
6856 (search-forward-regexp "^$" nil t)
6857 (let ((case-fold-search nil))
6860 ;;;
6861 ;;; Article highlights
6862 ;;;
6864 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
6866 ;;; Internal Variables:
6868 (defcustom gnus-button-url-regexp
6869 (concat
6873 (if (string-match "[[:digit:]]" "1") ;; Support POSIX?
6875 (punct "!?:;.,"))
6876 (concat
6878 ;; Match paired parentheses, e.g. in Wikipedia URLs:
6879 "[" chars punct "]+" "(" "[" chars punct "]+" "[" chars "]*)" "[" chars "]"
6881 "[" chars punct "]+" "[" chars "]"
6883 (concat ;; XEmacs 21.4 doesn't support POSIX.
6887 "Regular expression that matches URLs."
6888 :group 'gnus-article-buttons
6889 :type 'regexp)
6891 (defcustom gnus-button-valid-fqdn-regexp
6892 message-valid-fqdn-regexp
6893 "Regular expression that matches a valid FQDN."
6894 :version "22.1"
6895 :group 'gnus-article-buttons
6896 :type 'regexp)
6898 ;; Regexp suggested by Felix Wiemann in <87oeuomcz9.fsf@news2.ososo.de>
6899 (defcustom gnus-button-valid-localpart-regexp
6901 "Regular expression that matches a localpart of mail addresses or MIDs."
6902 :version "22.1"
6903 :group 'gnus-article-buttons
6904 :type 'regexp)
6906 (defcustom gnus-button-man-handler 'manual-entry
6907 "Function to use for displaying man pages.
6908 The function must take at least one argument with a string naming the
6909 man page."
6910 :version "22.1"
6911 :type '(choice (function-item :tag "Man" manual-entry)
6912 (function-item :tag "Woman" woman)
6913 (function :tag "Other"))
6914 :group 'gnus-article-buttons)
6916 (defcustom gnus-ctan-url "http://tug.ctan.org/tex-archive/"
6917 "Top directory of a CTAN \(Comprehensive TeX Archive Network\) archive.
6918 If the default site is too slow, try to find a CTAN mirror, see
6919 <URL:http://tug.ctan.org/tex-archive/CTAN.sites?action=/index.html>. See also
6920 the variable `gnus-button-handle-ctan'."
6921 :version "22.1"
6922 :group 'gnus-article-buttons
6923 :link '(custom-manual "(gnus)Group Parameters")
6924 :type '(choice (const "http://www.tex.ac.uk/tex-archive/")
6925 (const "http://tug.ctan.org/tex-archive/")
6926 (const "http://www.dante.de/CTAN/")
6927 (string :tag "Other")))
6929 (defcustom gnus-button-ctan-handler 'browse-url
6930 "Function to use for displaying CTAN links.
6931 The function must take one argument, the string naming the URL."
6932 :version "22.1"
6933 :type '(choice (function-item :tag "Browse Url" browse-url)
6934 (function :tag "Other"))
6935 :group 'gnus-article-buttons)
6938 "Bogus strings removed from CTAN URLs."
6939 :version "22.1"
6940 :group 'gnus-article-buttons
6942 (regexp :tag "Other")))
6944 (defcustom gnus-button-ctan-directory-regexp
6945 (regexp-opt
6946 (list "archive-tools" "biblio" "bibliography" "digests" "documentation"
6947 "dviware" "fonts" "graphics" "help" "indexing" "info" "language"
6948 "languages" "macros" "nonfree" "obsolete" "support" "systems"
6949 "tds" "tools" "usergrps" "web") t)
6950 "Regular expression for ctan directories.
6951 It should match all directories in the top level of `gnus-ctan-url'."
6952 :version "22.1"
6953 :group 'gnus-article-buttons
6954 :type 'regexp)
6956 (defcustom gnus-button-mid-or-mail-regexp
6958 gnus-button-valid-fqdn-regexp
6960 "Regular expression that matches a message ID or a mail address."
6961 :version "22.1"
6962 :group 'gnus-article-buttons
6963 :type 'regexp)
6965 (defcustom gnus-button-prefer-mid-or-mail 'gnus-button-mid-or-mail-heuristic
6967 Strings like this can be either a message ID or a mail address. If it is one
6968 of the symbols `mid' or `mail', Gnus will always assume that the string is a
6969 message ID or a mail address, respectively. If this variable is set to the
6970 symbol `ask', always query the user what do do. If it is a function, this
6971 function will be called with the string as its only argument. The function
6972 must return `mid', `mail', `invalid' or `ask'."
6973 :version "22.1"
6974 :group 'gnus-article-buttons
6975 :type '(choice (function-item :tag "Heuristic function"
6976 gnus-button-mid-or-mail-heuristic)
6977 (const ask)
6978 (const mid)
6979 (const mail)))
6981 (defcustom gnus-button-mid-or-mail-heuristic-alist
6983 (-10.0 . "#")
6986 (-5.0 . "@[Nn][Ee][Ww][Ss]") ;; /\@news/i
6987 (-5.0 . "@.*[Dd][Ii][Aa][Ll][Uu][Pp]") ;; /\@.*dialup/i;
6988 (-1.0 . "^[^a-z]+@")
6989 ;;
6991 (-5.0 . "[a-z].*[A-Z].*[a-z].*[A-Z].*@") ;; "([a-z].*[A-Z].*){2,}\@"
6992 (-3.0 . "[A-Z][A-Z][a-z][a-z].*@")
6994 ;;
6995 (-2.0 . "^[0-9]")
6996 (-1.0 . "^[0-9][0-9]")
6997 ;;
6998 ;; -3.0 /^[0-9][0-9a-fA-F]{2,2}/;
6999 (-3.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7000 ;; -5.0 /^[0-9][0-9a-fA-F]{3,3}/;
7001 (-5.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7002 ;;
7003 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][^0-9].*@") ;; "[0-9]{5,}.*\@"
7004 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][^0-9].*@")
7005 ;; "[0-9]{8,}.*\@"
7006 (-3.0
7007 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].*@")
7008 ;; "[0-9]{12,}.*\@"
7009 ;; compensation for TDMA dated mail addresses:
7010 (25.0 . "-dated-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]+.*@")
7011 ;;
7013 (-20.0 . "^slrn")
7014 (-20.0 . "^Pine")
7016 (-20.0 . "_-_") ;; Subject change in thread
7017 ;;
7021 ;;
7022 ;; (5.0 . "") ;; $local_part_len <= 7
7023 (10.0 . "^[^0-9]+@")
7024 (3.0 . "^[^0-9]+[0-9][0-9]?[0-9]?@")
7025 ;; ^[^0-9]+[0-9]{1,3}\@ digits only at end of local part
7026 (3.0 . "\@stud")
7027 ;;
7028 (2.0 . "[a-z][a-z][._-][A-Z][a-z].*@")
7029 ;;
7030 (0.5 . "^[A-Z][a-z]")
7031 (0.5 . "^[A-Z][a-z][a-z]")
7032 (1.5 . "^[A-Z][a-z][A-Z][a-z][^a-z]") ;; ^[A-Z][a-z]{3,3}
7033 (2.0 . "^[A-Z][a-z][A-Z][a-z][a-z][^a-z]")) ;; ^[A-Z][a-z]{4,4}
7034 "An alist of \(RATE . REGEXP\) pairs for `gnus-button-mid-or-mail-heuristic'.
7036 A negative RATE indicates a message IDs, whereas a positive indicates a mail
7037 address. The REGEXP is processed with `case-fold-search' set to nil."
7038 :version "22.1"
7039 :group 'gnus-article-buttons
7040 :type '(repeat (cons (number :tag "Rate")
7041 (regexp :tag "Regexp"))))
7043 (defun gnus-button-mid-or-mail-heuristic (mid-or-mail)
7044 "Guess whether MID-OR-MAIL is a message ID or a mail address.
7045 Returns `mid' if MID-OR-MAIL is a message IDs, `mail' if it's a mail
7046 address, `ask' if unsure and `invalid' if the string is invalid."
7047 (let ((case-fold-search nil)
7048 (list gnus-button-mid-or-mail-heuristic-alist)
7049 (result 0) rate regexp lpartlen elem)
7050 (setq lpartlen
7052 (gnus-message 8 "`%s', length of local part=`%s'." mid-or-mail lpartlen)
7053 ;; Certain special cases...
7054 (when (string-match
7055 (concat
7059 mid-or-mail)
7060 (gnus-message 8 "`%s' is a known mail address." mid-or-mail)
7061 (setq result 'mail))
7063 (gnus-message 8 "`%s' is invalid." mid-or-mail)
7064 (setq result 'invalid))
7065 ;; Nothing more to do, if result is not a number here...
7066 (when (numberp result)
7067 (while list
7068 (setq elem (car list)
7069 rate (car elem)
7070 regexp (cdr elem)
7071 list (cdr list))
7072 (when (string-match regexp mid-or-mail)
7073 (setq result (+ result rate))
7074 (gnus-message
7075 9 "`%s' matched `%s', rate `%s', result `%s'."
7076 mid-or-mail regexp rate result)))
7077 (when (<= lpartlen 7)
7078 (setq result (+ result 5.0))
7079 (gnus-message 9 "`%s' matched (<= lpartlen 7), result `%s'."
7080 mid-or-mail result))
7081 (when (>= lpartlen 12)
7082 (gnus-message 9 "`%s' matched (>= lpartlen 12)" mid-or-mail)
7083 (cond
7084 ((string-match "[0-9][^0-9]+[0-9].*@" mid-or-mail)
7085 ;; Long local part should contain realname if e-mail address,
7086 ;; too many digits: message-id.
7087 ;; $score -= 5.0 + 0.1 * $local_part_len;
7088 (setq rate (* -1.0 (+ 5.0 (* 0.1 lpartlen))))
7089 (setq result (+ result rate))
7090 (gnus-message
7091 9 "Many digits in `%s', rate `%s', result `%s'."
7092 mid-or-mail rate result))
7093 ((string-match "[^aeiouy][^aeiouy][^aeiouy][^aeiouy]+.*\@"
7094 mid-or-mail)
7095 ;; Too few vowels [^aeiouy]{4,}.*\@
7096 (setq result (+ result -5.0))
7097 (gnus-message
7098 9 "Few vowels in `%s', rate `%s', result `%s'."
7099 mid-or-mail -5.0 result))
7100 (t
7101 (setq result (+ result 5.0))
7102 (gnus-message
7103 9 "`%s', rate `%s', result `%s'." mid-or-mail 5.0 result)))))
7104 (gnus-message 8 "`%s': Final rate is `%s'." mid-or-mail result)
7105 ;; Maybe we should make this a customizable alist: (condition . 'result)
7106 (cond
7107 ((symbolp result) result)
7108 ;; Now convert number into proper results:
7109 ((< result -10.0) 'mid)
7110 ((> result 10.0) 'mail)
7111 (t 'ask))))
7113 (defun gnus-button-handle-mid-or-mail (mid-or-mail)
7114 (let* ((pref gnus-button-prefer-mid-or-mail) guessed
7115 (url-mid (concat "news" ":" mid-or-mail))
7116 (url-mailto (concat "mailto" ":" mid-or-mail)))
7117 (gnus-message 9 "mid-or-mail=%s" mid-or-mail)
7118 (when (fboundp pref)
7119 (setq guessed
7120 ;; get rid of surrounding angles...
7121 (funcall pref
7123 (if (or (eq 'mid guessed) (eq 'mail guessed))
7124 (setq pref guessed)
7125 (setq pref 'ask)))
7126 (if (eq pref 'ask)
7127 (save-window-excursion
7128 (if (y-or-n-p (concat "Is <" mid-or-mail "> a mail address? "))
7129 (setq pref 'mail)
7130 (setq pref 'mid))))
7131 (cond ((eq pref 'mid)
7132 (gnus-message 8 "calling `gnus-button-handle-news' %s" url-mid)
7133 (gnus-button-handle-news url-mid))
7134 ((eq pref 'mail)
7135 (gnus-message 8 "calling `gnus-url-mailto' %s" url-mailto)
7136 (gnus-url-mailto url-mailto))
7137 (t (gnus-message 3 "Invalid string.")))))
7139 (defun gnus-button-handle-custom (fun arg)
7140 "Call function FUN on argument ARG.
7141 Both FUN and ARG are supposed to be strings. ARG will be passed
7142 as a symbol to FUN."
7143 (funcall (intern fun)
7144 (if (string-match "^customize-apropos" fun)
7145 arg
7146 (intern arg))))
7150 ;; FIXME: Maybe we should merge some of the functions that do quite similar
7151 ;; stuff?
7153 (defun gnus-button-handle-describe-function (url)
7154 "Call `describe-function' when pushing the corresponding URL button."
7155 (describe-function
7156 (intern
7157 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7159 (defun gnus-button-handle-describe-variable (url)
7160 "Call `describe-variable' when pushing the corresponding URL button."
7161 (describe-variable
7162 (intern
7163 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7165 (defun gnus-button-handle-symbol (url)
7166 "Display help on variable or function.
7167 Calls `describe-variable' or `describe-function'."
7168 (let ((sym (intern url)))
7169 (cond
7170 ((fboundp sym) (describe-function sym))
7171 ((boundp sym) (describe-variable sym))
7172 (t (gnus-message 3 "`%s' is not a known function of variable." url)))))
7174 (defun gnus-button-handle-describe-key (url)
7175 "Call `describe-key' when pushing the corresponding URL button."
7176 (let* ((key-string
7177 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))
7178 (keys (ignore-errors (eval `(kbd ,key-string)))))
7179 (if keys
7180 (describe-key keys)
7181 (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
7183 (defun gnus-button-handle-apropos (url)
7184 "Call `apropos' when pushing the corresponding URL button."
7185 (apropos (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7187 (defun gnus-button-handle-apropos-command (url)
7188 "Call `apropos' when pushing the corresponding URL button."
7189 (apropos-command
7190 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7192 (defun gnus-button-handle-apropos-variable (url)
7193 "Call `apropos' when pushing the corresponding URL button."
7194 (funcall
7195 (if (fboundp 'apropos-variable) 'apropos-variable 'apropos)
7196 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7198 (defun gnus-button-handle-apropos-documentation (url)
7199 "Call `apropos' when pushing the corresponding URL button."
7200 (funcall
7201 (if (fboundp 'apropos-documentation) 'apropos-documentation 'apropos)
7202 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7204 (defun gnus-button-handle-library (url)
7205 "Call `locate-library' when pushing the corresponding URL button."
7206 (gnus-message 9 "url=`%s'" url)
7207 (let* ((lib (locate-library url))
7208 (file (gnus-replace-in-string (or lib "") "\.elc" ".el")))
7209 (if (not lib)
7210 (gnus-message 1 "Cannot locale library `%s'." url)
7211 (find-file-read-only file))))
7213 (defun gnus-button-handle-ctan (url)
7214 "Call `browse-url' when pushing a CTAN URL button."
7215 (funcall
7216 gnus-button-ctan-handler
7217 (concat
7218 gnus-ctan-url
7219 (gnus-replace-in-string url gnus-button-handle-ctan-bogus-regexp ""))))
7221 (defcustom gnus-button-tex-level 5
7222 "*Integer that says how many TeX-related buttons Gnus will show.
7223 The higher the number, the more buttons will appear and the more false
7224 positives are possible. Note that you can set this variable local to
7225 specific groups. Setting it higher in TeX groups is probably a good idea.
7226 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
7227 how to set variables in specific groups."
7228 :version "22.1"
7229 :group 'gnus-article-buttons
7230 :link '(custom-manual "(gnus)Group Parameters")
7231 :type 'integer)
7233 (defcustom gnus-button-man-level 5
7234 "*Integer that says how many man-related buttons Gnus will show.
7235 The higher the number, the more buttons will appear and the more false
7236 positives are possible. Note that you can set this variable local to
7237 specific groups. Setting it higher in Unix groups is probably a good idea.
7238 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
7239 how to set variables in specific groups."
7240 :version "22.1"
7241 :group 'gnus-article-buttons
7242 :link '(custom-manual "(gnus)Group Parameters")
7243 :type 'integer)
7245 (defcustom gnus-button-emacs-level 5
7246 "*Integer that says how many emacs-related buttons Gnus will show.
7247 The higher the number, the more buttons will appear and the more false
7248 positives are possible. Note that you can set this variable local to
7249 specific groups. Setting it higher in Emacs or Gnus related groups is
7250 probably a good idea. See Info node `(gnus)Group Parameters' and the variable
7251 `gnus-parameters' on how to set variables in specific groups."
7252 :version "22.1"
7253 :group 'gnus-article-buttons
7254 :link '(custom-manual "(gnus)Group Parameters")
7255 :type 'integer)
7257 (defcustom gnus-button-message-level 5
7258 "*Integer that says how many buttons for news or mail messages will appear.
7259 The higher the number, the more buttons will appear and the more false
7260 positives are possible."
7261 ;; mail addresses, MIDs, URLs for news, ...
7262 :version "22.1"
7263 :group 'gnus-article-buttons
7264 :type 'integer)
7266 (defcustom gnus-button-browse-level 5
7267 "*Integer that says how many buttons for browsing will appear.
7268 The higher the number, the more buttons will appear and the more false
7269 positives are possible."
7270 ;; stuff handled by `browse-url' or `gnus-button-embedded-url'
7271 :version "22.1"
7272 :group 'gnus-article-buttons
7273 :type 'integer)
7275 (defcustom gnus-button-alist
7277 0 (>= gnus-button-message-level 0) gnus-button-handle-news 3)
7280 0 t gnus-button-handle-news 2)
7282 1 (>= gnus-button-message-level 0) gnus-button-fetch-group 5)
7284 0 (>= gnus-button-message-level 0) gnus-button-fetch-group 3)
7285 ;; RFC 2392 (Don't allow `/' in domain part --> CID)
7287 0 (>= gnus-button-message-level 0) gnus-button-message-id 2)
7289 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7291 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7293 0 (>= gnus-button-message-level 0) gnus-url-mailto 2)
7294 ;; RFC 2368 (The mailto URL scheme)
7296 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7298 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7299 ;; CTAN
7301 gnus-button-ctan-directory-regexp
7303 0 (>= gnus-button-tex-level 1) gnus-button-handle-ctan 1)
7305 gnus-button-ctan-directory-regexp
7307 1 (>= gnus-button-tex-level 6) gnus-button-handle-ctan 1)
7308 ((concat
7310 gnus-button-ctan-directory-regexp
7312 1 (>= gnus-button-tex-level 8) gnus-button-handle-ctan 1)
7313 ;; This is info (home-grown style) <info://foo/bar+baz>
7315 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7316 ;; Info GNOME style <info:foo#bar_baz>
7318 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-gnome 1)
7319 ;; Info KDE style <info:(foo)bar baz>
7321 1 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-kde 2)
7323 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 2)
7325 ;; Info links like `C-h i d m CC Mode RET'
7326 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-keystrokes 2)
7327 ;; This is custom
7329 (>= gnus-button-emacs-level 1) gnus-button-handle-custom 1 2)
7330 ;; Emacs help commands
7332 ;; regexp doesn't match arguments containing ` '.
7333 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos 1)
7335 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-command 1)
7337 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-variable 1)
7339 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-documentation 1)
7340 ;; The following entries may lead to many false positives so don't enable
7341 ;; them by default (use a high button level).
7343 ;; Exclude [.?] for URLs in gmane.emacs.cvs
7344 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7346 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7348 0 (>= gnus-button-emacs-level 8) gnus-button-handle-symbol 1)
7350 0 (>= gnus-button-emacs-level 9) gnus-button-handle-symbol 1)
7352 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-variable 1)
7354 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-function 1)
7356 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
7358 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
7360 ;; Unlike the other regexps we really have to require quoting
7361 ;; here to determine where it ends.
7362 1 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
7363 ;; This is how URLs _should_ be embedded in text (RFC 1738, RFC 2396)...
7365 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7366 ;; RFC 2396 (2.4.3., delims) ...
7368 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7369 ;; Raw URLs.
7370 (gnus-button-url-regexp
7371 0 (>= gnus-button-browse-level 0) browse-url 0)
7372 ;; man pages
7374 0 (and (>= gnus-button-man-level 1) (< gnus-button-man-level 3))
7375 gnus-button-handle-man 1)
7376 ;; more man pages: resolv.conf(5), iso_8859-1(7), xterm(1x)
7378 0 (and (>= gnus-button-man-level 3) (< gnus-button-man-level 5))
7379 gnus-button-handle-man 1)
7380 ;; even more: Apache::PerlRun(3pm), PDL::IO::FastRaw(3pm),
7381 ;; SoWWWAnchor(3iv), XSelectInput(3X11), X(1), X(7)
7383 0 (>= gnus-button-man-level 5) gnus-button-handle-man 1)
7384 ;; Recognizing patches to .el files. This is somewhat obscure,
7385 ;; but considering the percentage of Gnus users who hack Emacs
7386 ;; Lisp files...
7388 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7390 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7391 ;; MID or mail: To avoid too many false positives we don't try to catch
7392 ;; all kind of allowed MIDs or mail addresses. Domain part must contain
7393 ;; at least one dot. TLD must contain two or three chars or be a know TLD
7394 ;; (info|name|...). Put this entry near the _end_ of `gnus-button-alist'
7395 ;; so that non-ambiguous entries (see above) match first.
7396 (gnus-button-mid-or-mail-regexp
7397 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1))
7398 "*Alist of regexps matching buttons in article bodies.
7400 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
7401 REGEXP: is the string (case insensitive) matching text around the button (can
7402 also be Lisp expression evaluating to a string),
7403 BUTTON: is the number of the regexp grouping actually matching the button,
7404 FORM: is a Lisp expression which must eval to true for the button to
7405 be added,
7406 CALLBACK: is the function to call when the user push this button, and each
7407 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
7409 CALLBACK can also be a variable, in that case the value of that
7410 variable it the real callback function."
7411 :group 'gnus-article-buttons
7412 :type '(repeat (list (choice regexp variable sexp)
7413 (integer :tag "Button")
7414 (sexp :tag "Form")
7415 (function :tag "Callback")
7416 (repeat :tag "Par"
7417 :inline t
7418 (integer :tag "Regexp group")))))
7419 (put 'gnus-button-alist 'risky-local-variable t)
7421 (defcustom gnus-header-button-alist
7423 0 (>= gnus-button-message-level 0) gnus-button-message-id 0)
7425 1 (>= gnus-button-message-level 0) gnus-button-reply 1)
7427 0 (>= gnus-button-message-level 0) gnus-msg-mail 0)
7428 ("^X-[Uu][Rr][Ll]:" gnus-button-url-regexp
7429 0 (>= gnus-button-browse-level 0) browse-url 0)
7430 ("^Subject:" gnus-button-url-regexp
7431 0 (>= gnus-button-browse-level 0) browse-url 0)
7432 ("^[^:]+:" gnus-button-url-regexp
7433 0 (>= gnus-button-browse-level 0) browse-url 0)
7434 ("^OpenPGP:.*url=" gnus-button-url-regexp
7435 0 (>= gnus-button-browse-level 0) gnus-button-openpgp 0)
7437 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7439 1 (>= gnus-button-message-level 0) gnus-button-message-id 4))
7440 "*Alist of headers and regexps to match buttons in article heads.
7442 This alist is very similar to `gnus-button-alist', except that each
7443 alist has an additional HEADER element first in each entry:
7445 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
7447 HEADER is a regexp to match a header. For a fuller explanation, see
7448 `gnus-button-alist'."
7449 :group 'gnus-article-buttons
7450 :group 'gnus-article-headers
7451 :type '(repeat (list (regexp :tag "Header")
7452 (choice regexp variable)
7453 (integer :tag "Button")
7454 (sexp :tag "Form")
7455 (function :tag "Callback")
7456 (repeat :tag "Par"
7457 :inline t
7458 (integer :tag "Regexp group")))))
7459 (put 'gnus-header-button-alist 'risky-local-variable t)
7461 ;;; Commands:
7463 (defun gnus-article-push-button (event)
7464 "Check text under the mouse pointer for a callback function.
7465 If the text under the mouse pointer has a `gnus-callback' property,
7466 call it with the value of the `gnus-data' text property."
7467 (interactive "e")
7468 (set-buffer (window-buffer (posn-window (event-start event))))
7469 (let* ((pos (posn-point (event-start event)))
7470 (data (get-text-property pos 'gnus-data))
7471 (fun (get-text-property pos 'gnus-callback)))
7472 (goto-char pos)
7473 (when fun
7474 (funcall fun data))))
7476 (defun gnus-article-press-button ()
7477 "Check text at point for a callback function.
7478 If the text at point has a `gnus-callback' property,
7479 call it with the value of the `gnus-data' text property."
7480 (interactive)
7481 (let ((data (get-text-property (point) 'gnus-data))
7482 (fun (get-text-property (point) 'gnus-callback)))
7483 (when fun
7484 (funcall fun data))))
7486 (defun gnus-article-highlight (&optional force)
7487 "Highlight current article.
7488 This function calls `gnus-article-highlight-headers',
7489 `gnus-article-highlight-citation',
7490 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7491 do the highlighting. See the documentation for those functions."
7492 (interactive (list 'force))
7493 (gnus-article-highlight-headers)
7494 (gnus-article-highlight-citation force)
7495 (gnus-article-highlight-signature)
7496 (gnus-article-add-buttons force)
7497 (gnus-article-add-buttons-to-head))
7499 (defun gnus-article-highlight-some (&optional force)
7500 "Highlight current article.
7501 This function calls `gnus-article-highlight-headers',
7502 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7503 do the highlighting. See the documentation for those functions."
7504 (interactive (list 'force))
7505 (gnus-article-highlight-headers)
7506 (gnus-article-highlight-signature)
7507 (gnus-article-add-buttons))
7509 (defun gnus-article-highlight-headers ()
7510 "Highlight article headers as specified by `gnus-header-face-alist'."
7511 (interactive)
7512 (gnus-with-article-headers
7513 (let (regexp header-face field-face from hpoints fpoints)
7514 (dolist (entry gnus-header-face-alist)
7515 (goto-char (point-min))
7517 (if (string-equal "" (nth 0 entry))
7519 (nth 0 entry))
7521 header-face (nth 1 entry)
7522 field-face (nth 2 entry))
7523 (while (and (re-search-forward regexp nil t)
7524 (not (eobp)))
7525 (beginning-of-line)
7526 (setq from (point))
7527 (unless (search-forward ":" nil t)
7528 (forward-char 1))
7529 (when (and header-face
7530 (not (memq (point) hpoints)))
7531 (push (point) hpoints)
7532 (gnus-put-text-property from (point) 'face header-face))
7533 (when (and field-face
7534 (not (memq (setq from (point)) fpoints)))
7535 (push from fpoints)
7537 (forward-char -2)
7538 (goto-char (point-max)))
7539 (gnus-put-text-property from (point) 'face field-face)))))))
7541 (defun gnus-article-highlight-signature ()
7542 "Highlight the signature in an article.
7543 It does this by highlighting everything after
7544 `gnus-signature-separator' using the face `gnus-signature'."
7545 (interactive)
7546 (gnus-with-article-buffer
7547 (let ((inhibit-point-motion-hooks t))
7548 (save-restriction
7549 (when (and gnus-signature-face
7550 (gnus-article-narrow-to-signature))
7551 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max) nil t)
7552 'face gnus-signature-face)
7553 (widen)
7554 (gnus-article-search-signature)
7555 (let ((start (match-beginning 0))
7556 (end (set-marker (make-marker) (1+ (match-end 0)))))
7557 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
7558 end)))))))
7560 (defun gnus-button-in-region-p (b e prop)
7561 "Say whether PROP exists in the region."
7562 (text-property-not-all b e prop nil))
7564 (defun gnus-article-add-buttons (&optional force)
7565 "Find external references in the article and make buttons of them.
7567 specified by `gnus-button-alist'."
7568 (interactive (list 'force))
7569 (gnus-with-article-buffer
7570 (let ((inhibit-point-motion-hooks t)
7571 (case-fold-search t)
7572 (alist gnus-button-alist)
7573 beg entry regexp)
7574 ;; Remove all old markers.
7575 (let (marker entry new-list)
7576 (while (setq marker (pop gnus-button-marker-list))
7577 (if (or (< marker (point-min)) (>= marker (point-max)))
7578 (push marker new-list)
7579 (goto-char marker)
7580 (when (setq entry (gnus-button-entry))
7581 (put-text-property (match-beginning (nth 1 entry))
7582 (match-end (nth 1 entry))
7583 'gnus-callback nil))
7584 (set-marker marker nil)))
7585 (setq gnus-button-marker-list new-list))
7586 ;; We skip the headers.
7587 (article-goto-body)
7588 (setq beg (point))
7589 (while (setq entry (pop alist))
7590 (setq regexp (eval (car entry)))
7591 (goto-char beg)
7592 (while (re-search-forward regexp nil t)
7593 (let ((start (match-beginning (nth 1 entry)))
7594 (end (match-end (nth 1 entry)))
7595 (from (match-beginning 0)))
7596 (when (and (or (eq t (nth 2 entry))
7597 (eval (nth 2 entry)))
7598 (not (gnus-button-in-region-p
7599 start end 'gnus-callback)))
7600 ;; That optional form returned non-nil, so we add the
7601 ;; button.
7602 (setq from (set-marker (make-marker) from))
7603 (push from gnus-button-marker-list)
7604 (unless (and (eq (car entry) 'gnus-button-url-regexp)
7605 (gnus-article-extend-url-button from start end))
7606 (gnus-article-add-button start end
7607 'gnus-button-push from)))))))))
7609 (defun gnus-article-extend-url-button (beg start end)
7610 "Extend url button if url is folded into two or more lines.
7611 Return non-nil if button is extended. BEG is a marker that points to
7612 the beginning position of a text containing url. START and END are
7613 the endpoints of a url button before it is extended. The concatenated
7614 url is put as the `gnus-button-url' overlay property on the button."
7615 (let ((opoint (point))
7616 (points (list start end))
7617 url delim regexp)
7618 (prog1
7619 (when (and (progn
7620 (goto-char end)
7622 (progn
7623 (goto-char start)
7624 (string-match
7626 (buffer-substring (point-at-bol) start)))
7627 (progn
7628 (setq url (list (buffer-substring start end))
7630 (beginning-of-line)
7631 (setq regexp (concat
7632 (when (and (looking-at
7633 message-cite-prefix-regexp)
7634 (< (match-end 0) start))
7635 (regexp-quote (match-string 0)))
7636 "\
7639 (while (progn
7640 (forward-line 1)
7641 (and (looking-at regexp)
7642 (prog1
7643 (match-beginning 1)
7644 (push (or (match-string 2)
7645 (match-string 1))
7646 url)
7647 (push (setq end (or (match-end 2)
7648 (match-end 1)))
7649 points)
7650 (push (or (match-beginning 2)
7651 (match-beginning 1))
7652 points)))))
7653 (match-beginning 2)))
7654 (let (gnus-article-mouse-face widget-mouse-face)
7655 (while points
7656 (gnus-article-add-button (pop points) (pop points)
7657 'gnus-button-push beg)))
7658 (let ((overlay (gnus-make-overlay start end)))
7659 (gnus-overlay-put overlay 'evaporate t)
7660 (gnus-overlay-put overlay 'gnus-button-url
7661 (list (mapconcat 'identity (nreverse url) "")))
7662 (when gnus-article-mouse-face
7663 (gnus-overlay-put overlay 'mouse-face gnus-article-mouse-face)))
7664 t)
7665 (goto-char opoint))))
7667 ;; Add buttons to the head of an article.
7668 (defun gnus-article-add-buttons-to-head ()
7669 "Add buttons to the head of the article."
7670 (interactive)
7671 (gnus-with-article-headers
7672 (let (beg end)
7673 (dolist (entry gnus-header-button-alist)
7674 ;; Each alist entry.
7675 (goto-char (point-min))
7676 (while (re-search-forward (car entry) nil t)
7677 ;; Each header matching the entry.
7678 (setq beg (match-beginning 0))
7680 (match-beginning 0))
7681 (point-max)))
7682 (goto-char beg)
7683 (while (re-search-forward (eval (nth 1 entry)) end t)
7684 ;; Each match within a header.
7685 (let* ((entry (cdr entry))
7686 (start (match-beginning (nth 1 entry)))
7687 (end (match-end (nth 1 entry)))
7688 (form (nth 2 entry)))
7689 (goto-char (match-end 0))
7690 (when (eval form)
7691 (gnus-article-add-button
7692 start end (nth 3 entry)
7693 (buffer-substring (match-beginning (nth 4 entry))
7694 (match-end (nth 4 entry)))))))
7695 (goto-char end))))))
7697 ;;; External functions:
7699 (defun gnus-article-add-button (from to fun &optional data)
7700 "Create a button between FROM and TO with callback FUN and data DATA."
7701 (when gnus-article-button-face
7702 (gnus-overlay-put (gnus-make-overlay from to nil t)
7703 'face gnus-article-button-face))
7704 (gnus-add-text-properties
7705 from to
7706 (nconc (and gnus-article-mouse-face
7707 (list gnus-mouse-face-prop gnus-article-mouse-face))
7708 (list 'gnus-callback fun)
7709 (and data (list 'gnus-data data))))
7710 (widget-convert-button 'link from to :action 'gnus-widget-press-button
7711 :button-keymap gnus-widget-button-keymap))
7713 ;;; Internal functions:
7715 (defun gnus-article-set-globals ()
7716 (with-current-buffer gnus-summary-buffer
7717 (gnus-set-global-variables)))
7719 (defun gnus-signature-toggle (end)
7720 (gnus-with-article-buffer
7721 (let ((inhibit-point-motion-hooks t))
7722 (if (text-property-any end (point-max) 'article-type 'signature)
7723 (progn
7724 (gnus-delete-wash-type 'signature)
7725 (gnus-remove-text-properties-when
7726 'article-type 'signature end (point-max)
7727 (cons 'article-type (cons 'signature
7728 gnus-hidden-properties))))
7729 (gnus-add-wash-type 'signature)
7730 (gnus-add-text-properties-when
7731 'article-type nil end (point-max)
7732 (cons 'article-type (cons 'signature
7733 gnus-hidden-properties)))))
7734 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
7735 (gnus-set-mode-line 'article))))
7737 (defun gnus-button-entry ()
7738 ;; Return the first entry in `gnus-button-alist' matching this place.
7739 (let ((alist gnus-button-alist)
7740 (entry nil))
7741 (while alist
7742 (setq entry (pop alist))
7743 (if (looking-at (eval (car entry)))
7744 (setq alist nil)
7745 (setq entry nil)))
7746 entry))
7748 (defun gnus-button-push (marker)
7749 ;; Push button starting at MARKER.
7750 (save-excursion
7751 (goto-char marker)
7752 (let* ((entry (gnus-button-entry))
7753 (inhibit-point-motion-hooks t)
7754 (fun (nth 3 entry))
7755 (args (or (and (eq (car entry) 'gnus-button-url-regexp)
7756 (get-char-property marker 'gnus-button-url))
7757 (mapcar (lambda (group)
7758 (let ((string (match-string group)))
7759 (set-text-properties
7760 0 (length string) nil string)
7761 string))
7762 (nthcdr 4 entry)))))
7763 (cond
7764 ((fboundp fun)
7765 (apply fun args))
7766 ((and (boundp fun)
7767 (fboundp (symbol-value fun)))
7768 (apply (symbol-value fun) args))
7769 (t
7770 (gnus-message 1 "You must define `%S' to use this button"
7771 (cons fun args)))))))
7773 (defun gnus-parse-news-url (url)
7774 (let (scheme server port group message-id articles)
7775 (with-temp-buffer
7776 (insert url)
7777 (goto-char (point-min))
7779 (setq scheme (match-string 1))
7780 (goto-char (match-end 0)))
7782 (setq server (match-string 1))
7783 (setq port (if (stringp (match-string 3))
7784 (string-to-number (match-string 3))
7785 (match-string 3)))
7786 (goto-char (match-end 0)))
7788 (cond
7790 (setq message-id (match-string 1)))
7792 (setq group (match-string 1)
7793 articles (split-string (match-string 2) "-")))
7795 (setq group (match-string 1)))
7796 (t
7797 (error "Unknown news URL syntax"))))
7798 (list scheme server port group message-id articles)))
7800 (defun gnus-button-handle-news (url)
7801 "Fetch a news URL."
7802 (destructuring-bind (scheme server port group message-id articles)
7803 (gnus-parse-news-url url)
7804 (cond
7805 (message-id
7806 (with-current-buffer gnus-summary-buffer
7807 (if server
7808 (let ((gnus-refer-article-method
7809 (nconc (list (list 'nntp server))
7810 gnus-refer-article-method))
7811 (nntp-port-number (or port "nntp")))
7812 (gnus-message 7 "Fetching %s with %s"
7813 message-id gnus-refer-article-method)
7814 (gnus-summary-refer-article message-id))
7815 (gnus-summary-refer-article message-id))))
7816 (group
7817 (gnus-button-fetch-group url)))))
7819 (defun gnus-button-patch (library line)
7820 "Visit an Emacs Lisp library LIBRARY on line LINE."
7821 (interactive)
7822 (let ((file (locate-library (file-name-nondirectory library))))
7823 (unless file
7824 (error "Couldn't find library %s" library))
7825 (find-file file)
7826 (goto-line (string-to-number line))))
7828 (defun gnus-button-handle-man (url)
7829 "Fetch a man page."
7830 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
7831 (when (eq gnus-button-man-handler 'woman)
7833 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
7834 (funcall gnus-button-man-handler url))
7836 (defun gnus-button-handle-info-url (url)
7837 "Fetch an info URL."
7838 (setq url (mm-subst-char-in-string ?+ ?\ url))
7839 (cond
7841 (gnus-info-find-node
7842 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
7843 "Gnus")
7844 ")" (gnus-url-unhex-string (match-string 2 url)))))
7846 (setq url
7847 (gnus-replace-in-string
7849 (gnus-info-find-node url))
7850 (t (error "Can't parse %s" url))))
7852 (defun gnus-button-handle-info-url-gnome (url)
7853 "Fetch GNOME style info URL."
7854 (setq url (mm-subst-char-in-string ?_ ?\ url))
7856 (gnus-info-find-node
7857 (concat "("
7858 (gnus-url-unhex-string
7859 (match-string 1 url))
7860 ")"
7861 (or (gnus-url-unhex-string
7862 (match-string 2 url))
7863 "Top")))
7864 (error "Can't parse %s" url)))
7866 (defun gnus-button-handle-info-url-kde (url)
7867 "Fetch KDE style info URL."
7868 (gnus-info-find-node (gnus-url-unhex-string url)))
7870 ;; (info) will autoload info.el
7871 (declare-function Info-menu "info" (menu-item &optional fork))
7873 (defun gnus-button-handle-info-keystrokes (url)
7874 "Call `info' when pushing the corresponding URL button."
7875 ;; For links like `C-h i d m gnus RET', `C-h i d m CC Mode RET'.
7876 (info)
7877 (Info-directory)
7878 (Info-menu url))
7880 ;; Called after pgg-snarf-keys-region, which autoloads pgg.el.
7881 (declare-function pgg-display-output-buffer "pgg" (start end status))
7883 (defun gnus-button-openpgp (url)
7884 "Retrieve and add an OpenPGP key given URL from an OpenPGP header."
7885 (with-temp-buffer
7886 (mm-url-insert-file-contents-external url)
7887 (pgg-snarf-keys-region (point-min) (point-max))
7888 (pgg-display-output-buffer nil nil nil)))
7890 (defun gnus-button-message-id (message-id)
7891 "Fetch MESSAGE-ID."
7892 (with-current-buffer gnus-summary-buffer
7893 (gnus-summary-refer-article message-id)))
7895 (defun gnus-button-fetch-group (address &rest ignore)
7896 "Fetch GROUP specified by ADDRESS."
7898 address)
7899 ;; Allow to use `gnus-button-fetch-group' in `browse-url-browser-function'
7900 ;; for nntp:// and news://
7901 (setq address (match-string 3 address)))
7902 (if (not (string-match "[:/]" address))
7903 ;; This is just a simple group url.
7904 (gnus-group-read-ephemeral-group address gnus-select-method)
7905 (if (not
7906 (string-match
7908 address))
7909 (error "Can't parse %s" address)
7910 (gnus-group-read-ephemeral-group
7911 (match-string 4 address)
7912 `(nntp ,(match-string 1 address)
7913 (nntp-address ,(match-string 1 address))
7914 (nntp-port-number ,(if (match-end 3)
7915 (match-string 3 address)
7916 "nntp")))
7917 nil nil nil
7918 (and (match-end 6) (list (string-to-number (match-string 6 address))))))))
7920 (defun gnus-url-parse-query-string (query &optional downcase)
7921 (let (retval pairs cur key val)
7922 (setq pairs (split-string query "&"))
7923 (while pairs
7924 (setq cur (car pairs)
7925 pairs (cdr pairs))
7926 (if (not (string-match "=" cur))
7927 nil ; Grace
7928 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
7929 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
7930 (if downcase
7931 (setq key (downcase key)))
7932 (setq cur (assoc key retval))
7933 (if cur
7934 (setcdr cur (cons val (cdr cur)))
7935 (setq retval (cons (list key val) retval)))))
7936 retval))
7938 (defun gnus-url-mailto (url)
7939 ;; Send mail to someone
7941 (setq url (substring url (match-beginning 1) nil)))
7942 (let (to args subject func)
7943 (setq args (gnus-url-parse-query-string
7945 (substring url 1)
7947 (concat "to=" (match-string 1 url) "&"
7948 (match-string 2 url))
7949 (concat "to=" url)))
7950 t)
7951 subject (cdr-safe (assoc "subject" args)))
7952 (gnus-msg-mail)
7953 (while args
7954 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
7955 (if (fboundp func)
7956 (funcall func)
7957 (message-position-on-field (caar args)))
7958 (insert (gnus-replace-in-string
7959 (mapconcat 'identity (reverse (cdar args)) ", ")
7961 (setq args (cdr args)))
7962 (if subject
7963 (message-goto-body)
7964 (message-goto-subject))))
7966 (defun gnus-button-embedded-url (address)
7967 "Activate ADDRESS with `browse-url'."
7968 (browse-url (gnus-strip-whitespace address)))
7970 ;;; Next/prev buttons in the article buffer.
7975 (defvar gnus-prev-page-map
7976 (let ((map (make-sparse-keymap)))
7977 (define-key map gnus-mouse-2 'gnus-button-prev-page)
7979 map))
7981 (defvar gnus-next-page-map
7982 (let ((map (make-sparse-keymap)))
7983 (unless (>= emacs-major-version 21)
7984 ;; XEmacs doesn't care.
7985 (set-keymap-parent map gnus-article-mode-map))
7986 (define-key map gnus-mouse-2 'gnus-button-next-page)
7988 map))
7990 (defun gnus-insert-prev-page-button ()
7991 (let ((b (point)) e
7992 (inhibit-read-only t))
7993 (gnus-eval-format
7994 gnus-prev-page-line-format nil
7995 `(keymap ,gnus-prev-page-map
7996 gnus-prev t
7997 gnus-callback gnus-article-button-prev-page
7998 article-type annotation))
7999 (setq e (if (bolp)
8000 ;; Exclude a newline.
8001 (1- (point))
8002 (point)))
8003 (when gnus-article-button-face
8004 (gnus-overlay-put (gnus-make-overlay b e nil t)
8005 'face gnus-article-button-face))
8006 (widget-convert-button
8007 'link b e
8008 :action 'gnus-button-prev-page
8009 :button-keymap gnus-prev-page-map)))
8011 (defun gnus-button-next-page (&optional args more-args)
8012 "Go to the next page."
8013 (interactive)
8014 (let ((win (selected-window)))
8015 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8016 (gnus-article-next-page)
8017 (select-window win)))
8019 (defun gnus-button-prev-page (&optional args more-args)
8020 "Go to the prev page."
8021 (interactive)
8022 (let ((win (selected-window)))
8023 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8024 (gnus-article-prev-page)
8025 (select-window win)))
8027 (defun gnus-insert-next-page-button ()
8028 (let ((b (point)) e
8029 (inhibit-read-only t))
8030 (gnus-eval-format gnus-next-page-line-format nil
8031 `(keymap ,gnus-next-page-map
8032 gnus-next t
8033 gnus-callback gnus-article-button-next-page
8034 article-type annotation))
8035 (setq e (if (bolp)
8036 ;; Exclude a newline.
8037 (1- (point))
8038 (point)))
8039 (when gnus-article-button-face
8040 (gnus-overlay-put (gnus-make-overlay b e nil t)
8041 'face gnus-article-button-face))
8042 (widget-convert-button
8043 'link b e
8044 :action 'gnus-button-next-page
8045 :button-keymap gnus-next-page-map)))
8047 (defun gnus-article-button-next-page (arg)
8048 "Go to the next page."
8049 (interactive "P")
8050 (let ((win (selected-window)))
8051 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8052 (gnus-article-next-page)
8053 (select-window win)))
8055 (defun gnus-article-button-prev-page (arg)
8056 "Go to the prev page."
8057 (interactive "P")
8058 (let ((win (selected-window)))
8059 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8060 (gnus-article-prev-page)
8061 (select-window win)))
8063 (defvar gnus-decode-header-methods
8064 '(mail-decode-encoded-word-region)
8065 "List of methods used to decode headers.
8067 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
8068 is FUNCTION, FUNCTION will be applied to all newsgroups. If item is a
8069 \(REGEXP . FUNCTION), FUNCTION will be only apply to the newsgroups
8070 whose names match REGEXP.
8072 For example:
8074 mail-decode-encoded-word-region
8076 ")
8078 (defvar gnus-decode-header-methods-cache nil)
8080 (defun gnus-multi-decode-header (start end)
8081 "Apply the functions from `gnus-encoded-word-methods' that match."
8082 (unless (and gnus-decode-header-methods-cache
8083 (eq gnus-newsgroup-name
8084 (car gnus-decode-header-methods-cache)))
8085 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
8086 (dolist (x gnus-decode-header-methods)
8087 (if (symbolp x)
8088 (nconc gnus-decode-header-methods-cache (list x))
8089 (if (and gnus-newsgroup-name
8090 (string-match (car x) gnus-newsgroup-name))
8091 (nconc gnus-decode-header-methods-cache
8092 (list (cdr x)))))))
8093 (let ((xlist gnus-decode-header-methods-cache))
8094 (pop xlist)
8095 (save-restriction
8096 (narrow-to-region start end)
8097 (while xlist
8098 (funcall (pop xlist) (point-min) (point-max))))))
8100 ;;;
8101 ;;; Treatment top-level handling.
8102 ;;;
8104 (defun gnus-treat-article (condition &optional part-number total-parts type)
8105 (let ((length (- (point-max) (point-min)))
8106 (alist gnus-treatment-function-alist)
8107 (article-goto-body-goes-to-point-min-p t)
8108 (treated-type
8109 (or (not type)
8110 (catch 'found
8111 (let ((list gnus-article-treat-types))
8112 (while list
8113 (when (string-match (pop list) type)
8114 (throw 'found t)))))))
8115 (highlightp (gnus-visual-p 'article-highlight 'highlight))
8116 val elem)
8117 (gnus-run-hooks 'gnus-part-display-hook)
8118 (dolist (elem alist)
8119 (setq val
8120 (save-excursion
8121 (when (gnus-buffer-live-p gnus-summary-buffer)
8122 (set-buffer gnus-summary-buffer))
8123 (symbol-value (car elem))))
8124 (when (and (or (consp val)
8125 treated-type)
8126 (gnus-treat-predicate val)
8127 (or (not (get (car elem) 'highlight))
8128 highlightp))
8129 (save-restriction
8130 (funcall (cadr elem)))))))
8132 ;; Dynamic variables.
8133 (defvar part-number)
8134 (defvar total-parts)
8135 (defvar type)
8136 (defvar condition)
8137 (defvar length)
8139 (defun gnus-treat-predicate (val)
8140 (cond
8141 ((null val)
8142 nil)
8143 (condition
8144 (eq condition val))
8145 ((and (listp val)
8146 (stringp (car val)))
8147 (apply 'gnus-or (mapcar `(lambda (s)
8148 (string-match s ,(or gnus-newsgroup-name "")))
8149 val)))
8150 ((listp val)
8151 (let ((pred (pop val)))
8152 (cond
8153 ((eq pred 'or)
8154 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
8155 ((eq pred 'and)
8156 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
8157 ((eq pred 'not)
8158 (not (gnus-treat-predicate (car val))))
8159 ((eq pred 'typep)
8160 (equal (car val) type))
8161 (t
8162 (error "%S is not a valid predicate" pred)))))
8163 ((eq val t)
8164 t)
8165 ((eq val 'head)
8166 nil)
8167 ((eq val 'first)
8168 (eq part-number 1))
8169 ((eq val 'last)
8170 (eq part-number total-parts))
8171 ((numberp val)
8172 (< length val))
8173 (t
8174 (error "%S is not a valid value" val))))
8176 (defun gnus-article-encrypt-body (protocol &optional n)
8177 "Encrypt the article body."
8178 (interactive
8179 (list
8180 (or gnus-article-encrypt-protocol
8181 (completing-read "Encrypt protocol: "
8182 gnus-article-encrypt-protocol-alist
8183 nil t))
8184 current-prefix-arg))
8185 ;; User might hit `K E' instead of `K e', so prompt once.
8186 (when (and gnus-article-encrypt-protocol
8187 gnus-novice-user)
8188 (unless (gnus-y-or-n-p "Really encrypt article(s)? ")
8189 (error "Encrypt aborted.")))
8190 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
8191 (unless func
8192 (error "Can't find the encrypt protocol %s" protocol))
8193 (if (member gnus-newsgroup-name '("nndraft:delayed"
8194 "nndraft:drafts"
8195 "nndraft:queue"))
8196 (error "Can't encrypt the article in group %s"
8197 gnus-newsgroup-name))
8198 (gnus-summary-iterate n
8199 (with-current-buffer gnus-summary-buffer
8200 (let ((mail-parse-charset gnus-newsgroup-charset)
8201 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
8202 (summary-buffer gnus-summary-buffer)
8203 references point)
8204 (gnus-set-global-variables)
8205 (when (gnus-group-read-only-p)
8206 (error "The current newsgroup does not support article encrypt"))
8207 (gnus-summary-show-article t)
8208 (setq references
8209 (or (mail-header-references gnus-current-headers) ""))
8210 (set-buffer gnus-article-buffer)
8211 (let* ((inhibit-read-only t)
8212 (headers
8213 (mapcar (lambda (field)
8214 (and (save-restriction
8215 (message-narrow-to-head)
8216 (goto-char (point-min))
8217 (search-forward field nil t))
8218 (prog2
8219 (message-narrow-to-field)
8220 (buffer-string)
8221 (delete-region (point-min) (point-max))
8222 (widen))))
8223 '("Content-Type:" "Content-Transfer-Encoding:"
8224 "Content-Disposition:"))))
8225 (message-narrow-to-head)
8226 (message-remove-header "MIME-Version")
8227 (goto-char (point-max))
8228 (setq point (point))
8229 (insert (apply 'concat headers))
8230 (widen)
8231 (narrow-to-region point (point-max))
8232 (let ((message-options message-options))
8233 (message-options-set 'message-sender user-mail-address)
8234 (message-options-set 'message-recipients user-mail-address)
8235 (message-options-set 'message-sign-encrypt 'not)
8236 (funcall func))
8237 (goto-char (point-min))
8239 (widen)
8240 (gnus-summary-edit-article-done
8241 references nil summary-buffer t))
8242 (when gnus-keep-backlog
8243 (gnus-backlog-remove-article
8244 (car gnus-article-current) (cdr gnus-article-current)))
8245 (when (get-buffer gnus-original-article-buffer)
8246 (with-current-buffer gnus-original-article-buffer
8247 (setq gnus-original-article nil)))
8248 (when gnus-use-cache
8249 (gnus-cache-update-article
8250 (car gnus-article-current) (cdr gnus-article-current))))))))
8253 "The following specs can be used:
8254 %t The security MIME type
8255 %i Additional info
8256 %d Details
8257 %D Details if button is pressed")
8260 "The following specs can be used:
8261 %t The security MIME type
8262 %i Additional info
8263 %d Details
8264 %D Details if button is pressed")
8266 (defvar gnus-mime-security-button-line-format-alist
8267 '((?t gnus-tmp-type ?s)
8268 (?i gnus-tmp-info ?s)
8269 (?d gnus-tmp-details ?s)
8270 (?D gnus-tmp-pressed-details ?s)))
8272 (defvar gnus-mime-security-button-commands
8274 (undefined "v")
8275 (undefined "t")
8276 (undefined "C")
8277 (gnus-mime-security-save-part "o" "Save...")
8278 (undefined "\C-o")
8279 (undefined "r")
8280 (undefined "d")
8281 (undefined "c")
8282 (undefined "i")
8283 (undefined "E")
8284 (undefined "e")
8285 (undefined "p")
8286 (gnus-mime-security-pipe-part "|" "Pipe To Command...")
8287 (undefined ".")))
8289 (defvar gnus-mime-security-button-map
8290 (let ((map (make-sparse-keymap)))
8291 (define-key map gnus-mouse-2 'gnus-article-push-button)
8292 (define-key map gnus-down-mouse-3 'gnus-mime-security-button-menu)
8293 (dolist (c gnus-mime-security-button-commands)
8294 (define-key map (cadr c) (car c)))
8295 map))
8297 (easy-menu-define
8298 gnus-mime-security-button-menu gnus-mime-security-button-map
8299 "Security button menu."
8300 `("Security Part"
8301 ,@(delq nil
8302 (mapcar (lambda (c)
8303 (unless (eq (car c) 'undefined)
8304 (vector (caddr c) (car c) :active t)))
8305 gnus-mime-security-button-commands))))
8307 (defun gnus-mime-security-button-menu (event prefix)
8308 "Construct a context-sensitive menu of security commands."
8310 (save-window-excursion
8311 (let ((pos (event-start event)))
8312 (select-window (posn-window pos))
8313 (goto-char (posn-point pos))
8314 (gnus-article-check-buffer)
8315 (popup-menu gnus-mime-security-button-menu nil prefix))))
8317 (defvar gnus-mime-security-details-buffer nil)
8319 (defvar gnus-mime-security-button-pressed nil)
8321 (defvar gnus-mime-security-show-details-inline t
8322 "If non-nil, show details in the article buffer.")
8324 (defun gnus-mime-security-verify-or-decrypt (handle)
8325 (mm-remove-parts (cdr handle))
8326 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
8327 point (inhibit-read-only t))
8328 (if region
8329 (goto-char (car region)))
8330 (setq point (point))
8331 (with-current-buffer (mm-handle-multipart-original-buffer handle)
8332 (let* ((mm-verify-option 'known)
8333 (mm-decrypt-option 'known)
8334 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
8335 (unless (eq nparts (cdr handle))
8336 (mm-destroy-parts (cdr handle))
8337 (setcdr handle nparts))))
8338 (gnus-mime-display-security handle)
8339 (when region
8340 (delete-region (point) (cdr region))
8341 (set-marker (car region) nil)
8342 (set-marker (cdr region) nil))
8343 (goto-char point)))
8345 (defun gnus-mime-security-show-details (handle)
8346 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
8347 (if (not details)
8348 (gnus-message 5 "No details.")
8349 (if gnus-mime-security-show-details-inline
8350 (let ((gnus-mime-security-button-pressed
8351 (not (get-text-property (point) 'gnus-mime-details)))
8352 (gnus-mime-security-button-line-format
8353 (get-text-property (point) 'gnus-line-format))
8354 (inhibit-read-only t))
8355 (forward-char -1)
8356 (while (eq (get-text-property (point) 'gnus-line-format)
8357 gnus-mime-security-button-line-format)
8358 (forward-char -1))
8359 (forward-char)
8360 (save-restriction
8361 (narrow-to-region (point) (point))
8362 (gnus-insert-mime-security-button handle))
8363 (delete-region (point)
8364 (or (text-property-not-all
8365 (point) (point-max)
8366 'gnus-line-format
8367 gnus-mime-security-button-line-format)
8368 (point-max))))
8369 ;; Not inlined.
8370 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
8371 (with-current-buffer gnus-mime-security-details-buffer
8372 (erase-buffer)
8373 t)
8374 (setq gnus-mime-security-details-buffer
8375 (gnus-get-buffer-create "*MIME Security Details*")))
8376 (with-current-buffer gnus-mime-security-details-buffer
8377 (insert details)
8378 (goto-char (point-min)))
8379 (pop-to-buffer gnus-mime-security-details-buffer)))))
8381 (defun gnus-mime-security-press-button (handle)
8382 (save-excursion
8383 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8384 (gnus-mime-security-show-details handle)
8385 (gnus-mime-security-verify-or-decrypt handle))))
8387 (defun gnus-insert-mime-security-button (handle &optional displayed)
8388 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
8389 (gnus-tmp-type
8390 (concat
8391 (or (nth 2 (assoc protocol mm-verify-function-alist))
8392 (nth 2 (assoc protocol mm-decrypt-function-alist))
8393 "Unknown")
8394 (if (equal (car handle) "multipart/signed")
8395 " Signed" " Encrypted")
8396 " Part"))
8397 (gnus-tmp-info
8398 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8399 "Undecided"))
8400 (gnus-tmp-details
8401 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
8402 gnus-tmp-pressed-details
8403 b e)
8404 (setq gnus-tmp-details
8405 (if gnus-tmp-details
8407 ""))
8408 (setq gnus-tmp-pressed-details
8409 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
8410 (unless (bolp)
8412 (setq b (point))
8413 (gnus-eval-format
8414 gnus-mime-security-button-line-format
8415 gnus-mime-security-button-line-format-alist
8416 `(keymap ,gnus-mime-security-button-map
8417 gnus-callback gnus-mime-security-press-button
8418 gnus-line-format ,gnus-mime-security-button-line-format
8419 gnus-mime-details ,gnus-mime-security-button-pressed
8420 article-type annotation
8421 gnus-data ,handle))
8422 (setq e (if (bolp)
8423 ;; Exclude a newline.
8424 (1- (point))
8425 (point)))
8426 (when gnus-article-button-face
8427 (gnus-overlay-put (gnus-make-overlay b e nil t)
8428 'face gnus-article-button-face))
8429 (widget-convert-button
8430 'link b e
8431 :mime-handle handle
8432 :action 'gnus-widget-press-button
8433 :button-keymap gnus-mime-security-button-map
8434 :help-echo
8435 (lambda (widget/window &optional overlay pos)
8436 ;; Needed to properly clear the message due to a bug in
8437 ;; wid-edit (XEmacs only).
8438 (when (boundp 'help-echo-owns-message)
8439 (setq help-echo-owns-message t))
8440 (format
8441 "%S: show detail; %S: more options"
8442 (aref gnus-mouse-2 0)
8443 (aref gnus-down-mouse-3 0))))))
8445 (defun gnus-mime-display-security (handle)
8446 (save-restriction
8447 (narrow-to-region (point) (point))
8448 (unless (gnus-unbuttonized-mime-type-p (car handle))
8449 (gnus-insert-mime-security-button handle))
8450 (gnus-mime-display-part (cadr handle))
8451 (unless (bolp)
8453 (unless (gnus-unbuttonized-mime-type-p (car handle))
8454 (let ((gnus-mime-security-button-line-format
8455 gnus-mime-security-button-end-line-format))
8456 (gnus-insert-mime-security-button handle)))
8457 (mm-set-handle-multipart-parameter
8458 handle 'gnus-region
8459 (cons (set-marker (make-marker) (point-min))
8460 (set-marker (make-marker) (point-max))))
8461 (goto-char (point-max))))
8463 (defun gnus-mime-security-run-function (function)
8464 "Run FUNCTION with the security part under point."
8465 (gnus-article-check-buffer)
8466 (let ((data (get-text-property (point) 'gnus-data))
8467 buffer handle)
8468 (when (and (stringp (car-safe data))
8469 (setq buffer (mm-handle-multipart-original-buffer data))
8470 (setq handle (cadr data)))
8471 (if (bufferp (mm-handle-buffer handle))
8472 (progn
8473 (setq handle (cons buffer (copy-sequence (cdr handle))))
8474 (mm-handle-set-undisplayer handle nil))
8475 (setq handle (mm-make-handle
8476 buffer
8477 (mm-handle-multipart-ctl-parameter handle 'protocol)
8478 nil nil nil nil nil nil)))
8479 (funcall function handle))))
8481 (defun gnus-mime-security-save-part ()
8482 "Save the security part under point."
8483 (interactive)
8484 (gnus-mime-security-run-function 'mm-save-part))
8486 (defun gnus-mime-security-pipe-part ()
8487 "Pipe the security part under point to a process."
8488 (interactive)
8489 (gnus-mime-security-run-function 'mm-pipe-part))
8491 (gnus-ems-redefine)
8493 (provide 'gnus-art)
8495 (run-hooks 'gnus-art-load-hook)
8497 ;; arch-tag: 2654516f-6279-48f9-a83b-05c1fa450c33
8498 ;;; gnus-art.el ends here