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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."
187 regexp)
189 regexp)
195 "*This variable is a list of regular expressions.
196 If it is non-nil, headers that match the regular expressions will
197 be placed first in the article buffer in the sequence specified by
198 this list."
203 "Headers that are only to be displayed if they have interesting data.
204 Possible values in this list are:
206 'empty Headers with no content.
207 'newsgroups Newsgroup identical to Gnus group.
208 'to-address To identical to To-address.
209 'to-list To identical to To-list.
210 'cc-list CC identical to To-list.
211 'followup-to Followup-to identical to Newsgroups.
212 'reply-to Reply-to identical to From.
213 'date Date less than four days old.
214 'long-to To and/or Cc longer than 1024 characters.
215 'many-to Multiple To and/or Cc."
229 "Skip over text that is not worth reading.
230 By default, if you set this t, then Gnus will display citations and
231 signatures, but will never scroll down to show you a page consisting
232 only of boring text. Boring text is controlled by
233 `gnus-article-boring-faces'."
239 "Regexp matching signature separator.
240 This can also be a list of regexps. In that case, it will be checked
241 from head to tail looking for a separator. Searches will be done from
242 the end of the buffer."
249 "Provide a limit to what is considered a signature.
250 If it is a number, no signature may not be longer (in characters) than
251 that number. If it is a floating point number, no signature may be
252 longer (in lines) than that number. If it is a function, the function
253 will be called without any parameters, and if it returns nil, there is
254 no signature in the buffer. If it is a string, it will be used as a
255 regexp. If it matches, the text in question is not a signature.
257 This can also be a list of the above values."
261 function
266 "Property list to use for hiding text."
270 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
271 ;; frames in a session.
276 'gnus-display-x-face-in-from
279 'gnus-display-x-face-in-from
280 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | \
282 "*String or function to be executed to display an X-Face header.
283 If it is a string, the command will be executed in a sub-shell
284 asynchronously. The compressed face will be piped to this command."
287 function)
293 "Regexp matching posters whose face shouldn't be shown automatically."
298 "Banner alist for stripping.
299 For example,
300 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
306 banner
307 :variable-document
308 "Alist of regexps (to match group names) and banner."
309 :variable-group gnus-article-washing
310 :parameter-type
312 :value nil
315 regexp
317 :parameter-document
318 "If non-nil, specify how to remove `banners' from articles.
320 Symbol `signature' means to remove signatures delimited by
321 `gnus-signature-separator'. Any other symbol is used to look up a
322 regular expression to match the banner in `gnus-article-banner-alist'.
323 A string is used as a regular expression to match the banner
327 "Alist of mail addresses and banners.
328 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
329 to match a mail address in the From: header, BANNER is one of a symbol
330 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
331 If ADDRESS matches author's mail address, it will remove things like
332 advertisements. For example:
335 "
342 regexp
357 2
360 value)))
368 pattern)
373 value))))
391 types))
393 ;; several times seen it triggered by normal text. --Stef
394 ;; Miles suggests that this form is sometimes used but for italics,
395 ;; so maybe we should map it to `italic'.
396 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
397 ;; 2 3 gnus-emphasis-strikethru)
400 "*Alist that says how to fontify certain phrases.
401 Each item looks like this:
405 The first element is a regular expression to be matched. The second
406 is a number that says what regular expression grouping used to find
407 the entire emphasized word. The third is a number that says what
408 regexp grouping should be displayed and highlighted. The fourth
409 is the face used for highlighting."
410 :type
417 :value-create
425 widget
426 :value
429 regexp
432 face)
440 face)))
446 value)))
450 "A regexp to describe whitespace which should not be emphasized.
452 The former avoids underlining of leading and trailing whitespace,
453 and the latter avoids underlining any whitespace at all."
459 "Face used for displaying strong emphasized text (*word*)."
463 "Face used for displaying italic emphasized text (/word/)."
467 "Face used for displaying underlined emphasized text (_word_)."
471 "Face used for displaying underlined bold emphasized text (_*word*_)."
475 "Face used for displaying underlined italic emphasized text (_/word/_)."
479 "Face used for displaying bold italic emphasized text (/*word*/)."
484 "Face used for displaying underlined bold italic emphasized text.
485 Example: (_/*word*/_)."
491 "Face used for displaying strike-through text (-word-)."
496 "Face used for displaying highlighted words."
500 "Format for display of Date headers in article bodies.
501 See `format-time-string' for the possible values.
503 The variable can also be function, which should return a complete Date
504 header. The function is called with one argument, the time, which can
505 be fed to `format-time-string'."
511 "*If non-nil, don't remove any headers before saving.
512 This will be overridden by the `:headers' property that the symbol of
513 the saver function, which is specified by `gnus-default-article-saver',
514 might have."
519 "*This variable says how much prompting is to be done when saving articles.
520 If it is nil, no prompting will be done, and the articles will be
521 saved to the default files. If this variable is `always', each and
522 every article that is saved will be preceded by a prompt, even when
523 saving large batches of articles. If this variable is neither nil not
524 `always', there the user will be prompted once for a file name for
525 each invocation of the saving commands."
532 "Headers to keep if `gnus-save-all-headers' is nil.
533 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
534 If that variable is nil, however, all headers that match this regexp
535 will be kept while the rest will be deleted before saving. This and
536 `gnus-save-all-headers' will be overridden by the `:headers' property
537 that the symbol of the saver function, which is specified by
538 `gnus-default-article-saver', might have."
543 "A function to save articles in your favourite format.
544 The function will be called by way of the `gnus-summary-save-article'
545 command, and friends such as `gnus-summary-save-article-rmail'.
547 Gnus provides the following functions:
549 * gnus-summary-save-in-rmail (Rmail format)
550 * gnus-summary-save-in-mail (Unix mail format)
551 * gnus-summary-save-in-folder (MH folder)
552 * gnus-summary-save-in-file (article format)
553 * gnus-summary-save-body-in-file (article body)
554 * gnus-summary-save-in-vm (use VM's folder format)
555 * gnus-summary-write-to-file (article format -- overwrite)
556 * gnus-summary-write-body-to-file (article body -- overwrite)
558 The symbol of each function may have the following properties:
560 * :decode
561 The value non-nil means save decoded articles. This is meaningful
562 only with `gnus-summary-save-in-file', `gnus-summary-save-body-in-file',
563 `gnus-summary-write-to-file', and `gnus-summary-write-body-to-file'.
565 * :function
566 The value specifies an alternative function which appends, not
567 overwrites, articles to a file. This implies that when saving many
568 articles at a time, `gnus-prompt-before-saving' is bound to t and all
569 articles are saved in a single file. This is meaningful only with
570 `gnus-summary-write-to-file' and `gnus-summary-write-body-to-file'.
572 * :headers
573 The value specifies the symbol of a variable of which the value
574 specifies headers to be saved. If it is omitted,
575 `gnus-save-all-headers' and `gnus-saved-headers' control what
576 headers should be saved."
593 "Coding system used to save decoded articles to a file.
595 The recommended coding systems are `utf-8', `iso-2022-7bit' and so on,
596 which can safely encode any characters in text. This is used by the
597 commands including:
599 * gnus-summary-save-article-file
600 * gnus-summary-save-article-body-file
601 * gnus-summary-write-article-file
602 * gnus-summary-write-article-body-file
604 and the functions to which you may set `gnus-default-article-saver':
606 * gnus-summary-save-in-file
607 * gnus-summary-save-body-in-file
608 * gnus-summary-write-to-file
609 * gnus-summary-write-body-to-file
611 Those commands and functions save just text displayed in the article
612 buffer to a file if the value of this variable is non-nil. Note that
613 buttonized MIME parts will be lost in a saved file in that case.
614 Otherwise, raw articles will be saved."
629 "A function generating a file name to save articles in Rmail format.
630 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
635 "A function generating a file name to save articles in Unix mail format.
636 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
641 "A function generating a file name to save articles in MH folder.
642 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
647 "A function generating a file name to save articles in article format.
648 The function is called with NEWSGROUP, HEADERS, and optional
649 LAST-FILE."
656 "*Variable used to suggest where articles are to be saved.
657 For instance, if you would like to save articles related to Gnus in
659 you could set this variable to something like:
664 This variable is an alist where the key is the match and the
665 value is a list of possible files to save in if the match is
666 non-nil.
668 If the match is a string, it is used as a regexp match on the
669 article. If the match is a symbol, that symbol will be funcalled
670 from the buffer of the article to be saved with the newsgroup as the
671 parameter. If it is a list, it will be evaled in the same buffer.
673 If this form or function returns a string, this string will be used as a
674 possible file name; and if it returns a non-nil list, that list will be
675 used as possible file names."
682 "*Regexp describing what to use as article page delimiters.
684 beginning of a line."
689 "*The format specification for the article mode line.
690 See `gnus-summary-mode-line-format' for a closer description.
692 The following additional specs are available:
694 %w The article washing status.
695 %m The number of MIME parts in the article."
700 "*A hook for Gnus article mode."
705 ;; Extracted from gnus-xmas-define in order to preserve user settings
708 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
712 "*Hook run after the creation of the article mode menu."
717 "*A hook called after an article has been prepared in the article buffer."
722 "List of headers to be removed when copying an article.
723 Each element is a regular expression."
733 "Face used for highlighting a button in the article buffer."
737 "Face used for highlighting buttons in the article buffer.
739 An article button is a piece of text that you can activate by pressing
740 `RET' or `mouse-2' above it."
745 "Face used for mouse highlighting in the article buffer.
747 Article buttons will be displayed in this face when the cursor is
748 above them."
753 "Face used for highlighting a signature in the article buffer.
754 Obsolete; use the face `gnus-signature' for customizations instead."
762 "Face used for highlighting a signature in the article buffer."
765 ;; backward-compatibility alias
777 "Face used for displaying from headers."
780 ;; backward-compatibility alias
792 "Face used for displaying subject headers."
795 ;; backward-compatibility alias
807 "Face used for displaying newsgroups headers.
808 In the default setup this face is only used for crossposted
809 articles."
812 ;; backward-compatibility alias
824 "Face used for displaying header names."
827 ;; backward-compatibility alias
841 ;; backward-compatibility alias
849 "*Controls highlighting of article headers.
851 An alist of the form (HEADER NAME CONTENT).
853 HEADER is a regular expression which should match the name of a
854 header and NAME and CONTENT are either face names or nil.
856 The name of each header field will be displayed using the face
857 specified by the first element in the list where HEADER matches
858 the header name and NAME is non-nil. Similarly, the content will
859 be displayed by the first non-nil matching CONTENT face."
874 "Alist of image types and properties applied to Face and X-Face images.
875 Here are examples:
877 ;; Specify the altitude of Face images in the From header.
878 \(setq gnus-face-properties-alist
879 '((pbm . (:face gnus-x-face :ascent 80))
880 (png . (:ascent 80))))
882 ;; Show Face images as pressed buttons.
883 \(setq gnus-face-properties-alist
884 '((pbm . (:face gnus-x-face :relief -2))
885 (png . (:relief -2))))
887 See the manual for the valid properties for various image types.
888 Currently, `pbm' is used for X-Face images and `png' is used for Face
889 images in Emacs. Only the `:face' property is effective on the `xface'
890 image type in XEmacs if it is built with the libcompface library."
897 article-decode-group-name article-decode-idna-rhs)
898 "*Hook run to decode charsets in articles."
903 "Function to display MIME articles."
936 "List of MIME types that should be ignored by Gnus."
942 "List of MIME types that should not be given buttons when rendered inline.
943 See also `gnus-buttonized-mime-types' which may override this variable.
944 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
950 "List of MIME types that should be given buttons when rendered inline.
951 If set, this variable overrides `gnus-unbuttonized-mime-types'.
952 To see e.g. security buttons you could set this to
954 this list to display radio buttons that allow you to choose one of two
955 media types those mails include. See also `mm-discouraged-alternatives'.
956 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
962 "If non-nil, all MIME parts get buttons.
963 When nil (the default value), then some MIME parts do not get buttons,
964 as described by the variables `gnus-buttonized-mime-types' and
965 `gnus-unbuttonized-mime-types'."
971 "String used to delimit header and body.
972 This variable is used by `gnus-article-treat-body-boundary' which can
973 be controlled by `gnus-treat-body-boundary'."
977 string))
981 "Defines the location of the faces database.
982 For information on obtaining this database of pretty pictures, please
983 see http://www.cs.indiana.edu/picons/ftp/index.html"
992 "Say whether picons are installed on your machine."
997 installed))
1000 "Function called with a MIME handle as the argument.
1001 This is meant for people who want to do something automatic based
1002 on parts -- for instance, adding Vcard info to a database."
1005 function))
1008 "An alist of MIME types to functions to display them."
1014 "Whether the X-Sent and Date headers can coexist.
1017 be added below it (otherwise)."
1023 "Function called with a MIME handle as the argument.
1024 This is meant for people who want to view first matched part.
1025 For `undisplayed-alternative' (default), the first undisplayed
1026 part or alternative part is used. For `undisplayed', the first
1027 undisplayed part is used. For a function, the first part which
1028 the function return t is used. For nil, the first part is
1029 used."
1052 "An alist of actions that run on the MIME attachment."
1058 "Advance to next MIME part when deleting or stripping parts.
1060 When 0, point will be placed on the same part as before. When
1061 positive (negative), move point forward (backwards) this many
1062 parts. When nil, redisplay article."
1068 integer))
1070 ;;;
1071 ;;; The treatment variables
1072 ;;;
1099 "Highlight the signature.
1100 Valid values are nil, t, `head', `first', `last', an integer or a
1101 predicate. See Info node `(gnus)Customizing Articles'."
1108 "Add buttons.
1109 Valid values are nil, t, `head', `first', `last', an integer or a
1110 predicate. See Info node `(gnus)Customizing Articles'."
1117 "Add buttons to the head.
1118 Valid values are nil, t, `head', `first', `last', an integer or a
1119 predicate. See Info node `(gnus)Customizing Articles'."
1126 "Emphasize text.
1127 Valid values are nil, t, `head', `first', `last', an integer or a
1128 predicate. See Info node `(gnus)Customizing Articles'."
1135 "Remove carriage returns.
1136 Valid values are nil, t, `head', `first', `last', an integer or a
1137 predicate. See Info node `(gnus)Customizing Articles'."
1144 "Remove newlines from within URLs.
1145 Valid values are nil, t, `head', `first', `last', an integer or a
1146 predicate. See Info node `(gnus)Customizing Articles'."
1153 "Remove leading whitespace in headers.
1154 Valid values are nil, t, `head', `first', `last', an integer or a
1155 predicate. See Info node `(gnus)Customizing Articles'."
1162 "Hide headers.
1163 Valid values are nil, t, `head', `first', `last', an integer or a
1164 predicate. See Info node `(gnus)Customizing Articles'."
1170 "Hide boring headers.
1171 Valid values are nil, t, `head', `first', `last', an integer or a
1172 predicate. See Info node `(gnus)Customizing Articles'."
1178 "Hide the signature.
1179 Valid values are nil, t, `head', `first', `last', an integer or a
1180 predicate. See Info node `(gnus)Customizing Articles'."
1186 "Fill the article.
1187 Valid values are nil, t, `head', `first', `last', an integer or a
1188 predicate. See Info node `(gnus)Customizing Articles'."
1194 "Hide cited text.
1195 Valid values are nil, t, `head', `first', `last', an integer or a
1196 predicate. See Info node `(gnus)Customizing Articles'."
1202 "Hide cited text.
1203 Valid values are nil, t, `head', `first', `last', an integer or a
1204 predicate. See Info node `(gnus)Customizing Articles'."
1210 "Strip list identifiers from `gnus-list-identifiers`.
1211 Valid values are nil, t, `head', `first', `last', an integer or a
1212 predicate. See Info node `(gnus)Customizing Articles'."
1222 "Strip PEM signatures.
1223 Valid values are nil, t, `head', `first', `last', an integer or a
1224 predicate. See Info node `(gnus)Customizing Articles'."
1230 "Strip banners from articles.
1231 The banner to be stripped is specified in the `banner' group parameter.
1232 Valid values are nil, t, `head', `first', `last', an integer or a
1233 predicate. See Info node `(gnus)Customizing Articles'."
1239 "Highlight the headers.
1240 Valid values are nil, t, `head', `first', `last', an integer or a
1241 predicate. See Info node `(gnus)Customizing Articles'."
1248 "Highlight cited text.
1249 Valid values are nil, t, `head', `first', `last', an integer or a
1250 predicate. See Info node `(gnus)Customizing Articles'."
1257 "Display the Date in UT (GMT).
1258 Valid values are nil, t, `head', `first', `last', an integer or a
1259 predicate. See Info node `(gnus)Customizing Articles'."
1265 "Display the Date in the local timezone.
1266 Valid values are nil, t, `head', `first', `last', an integer or a
1267 predicate. See Info node `(gnus)Customizing Articles'."
1273 "Display the Date in a format that can be read aloud in English.
1274 Valid values are nil, t, `head', `first', `last', an integer or a
1275 predicate. See Info node `(gnus)Customizing Articles'."
1282 "Display the Date header in a way that says how much time has elapsed.
1283 Valid values are nil, t, `head', `first', `last', an integer or a
1284 predicate. See Info node `(gnus)Customizing Articles'."
1290 "Display the date in the original timezone.
1291 Valid values are nil, t, `head', `first', `last', an integer or a
1292 predicate. See Info node `(gnus)Customizing Articles'."
1298 "Display the date in the ISO8601 format.
1299 Valid values are nil, t, `head', `first', `last', an integer or a
1300 predicate. See Info node `(gnus)Customizing Articles'."
1307 "Display the date in a user-defined format.
1308 The format is defined by the `gnus-article-time-format' variable.
1309 Valid values are nil, t, `head', `first', `last', an integer or a
1310 predicate. See Info node `(gnus)Customizing Articles'."
1316 "Strip the X-No-Archive header line from the beginning of the body.
1317 Valid values are nil, t, `head', `first', `last', an integer or a
1318 predicate. See Info node `(gnus)Customizing Articles'."
1325 "Strip trailing blank lines.
1326 Valid values are nil, t, `head', `first', `last', an integer or a
1327 predicate. See Info node `(gnus)Customizing Articles'.
1329 When set to t, it also strips trailing blanks in all MIME parts.
1330 Consider to use `last' instead."
1336 "Strip leading blank lines.
1337 Valid values are nil, t, `head', `first', `last', an integer or a
1338 predicate. See Info node `(gnus)Customizing Articles'.
1340 When set to t, it also strips trailing blanks in all MIME parts."
1346 "Strip multiple blank lines.
1347 Valid values are nil, t, `head', `first', `last', an integer or a
1348 predicate. See Info node `(gnus)Customizing Articles'."
1354 "Unfold folded header lines.
1355 Valid values are nil, t, `head', `first', `last', an integer or a
1356 predicate. See Info node `(gnus)Customizing Articles'."
1363 "If non-nil, allow unfolding headers even if the header is long.
1364 If it is a regexp, only long headers matching this regexp are unfolded.
1365 If it is t, all long headers are unfolded.
1367 This variable has no effect if `gnus-treat-unfold-headers' is nil."
1375 "Fold headers.
1376 Valid values are nil, t, `head', `first', `last', an integer or a
1377 predicate. See Info node `(gnus)Customizing Articles'."
1384 "Fold the Newsgroups and Followup-To headers.
1385 Valid values are nil, t, `head', `first', `last', an integer or a
1386 predicate. See Info node `(gnus)Customizing Articles'."
1393 "Treat overstrike highlighting.
1394 Valid values are nil, t, `head', `first', `last', an integer or a
1395 predicate. See Info node `(gnus)Customizing Articles'."
1402 "Treat ANSI SGR control sequences.
1403 Valid values are nil, t, `head', `first', `last', an integer or a
1404 predicate. See Info node `(gnus)Customizing Articles'."
1420 "Display X-Face headers.
1421 Valid values are nil and `head'.
1422 See Info node `(gnus)Customizing Articles' and Info node
1423 `(gnus)X-Face' for details."
1428 :type gnus-article-treat-head-custom
1431 symbol
1433 value)
1436 ** gnus-treat-display-xface is an obsolete variable;\
1441 ** gnus-treat-display-xface is an obsolete variable;\
1445 value)))))
1452 "Display Face headers.
1453 Valid values are nil, t, `head', `first', `last', an integer or a
1454 predicate. See Info node `(gnus)Customizing Articles' and Info
1455 node `(gnus)X-Face' for details."
1464 "Display smileys.
1465 Valid values are nil, t, `head', `first', `last', an integer or a
1466 predicate. See Info node `(gnus)Customizing Articles' and Info
1467 node `(gnus)Smileys' for details."
1479 "Display picons in the From header.
1480 Valid values are nil, t, `head', `first', `last', an integer or a
1481 predicate. See Info node `(gnus)Customizing Articles' and Info
1482 node `(gnus)Picons' for details."
1495 "Display picons in To and Cc headers.
1496 Valid values are nil, t, `head', `first', `last', an integer or a
1497 predicate. See Info node `(gnus)Customizing Articles' and Info
1498 node `(gnus)Picons' for details."
1511 "Display picons in the Newsgroups and Followup-To headers.
1512 Valid values are nil, t, `head', `first', `last', an integer or a
1513 predicate. See Info node `(gnus)Customizing Articles' and Info
1514 node `(gnus)Picons' for details."
1525 gnus-treat-mail-picon
1526 gnus-treat-from-picon)
1527 ;; If there's much decoration, the user might prefer a boundery.
1528 'head
1529 nil)
1530 "Draw a boundary at the end of the headers.
1531 Valid values are nil and `head'.
1532 See Info node `(gnus)Customizing Articles' for details."
1539 "Capitalize sentence-starting words.
1540 Valid values are nil, t, `head', `first', `last', an integer or a
1541 predicate. See Info node `(gnus)Customizing Articles'."
1548 "Format as HTML.
1549 Valid values are nil, t, `head', `first', `last', an integer or a
1550 predicate. See Info node `(gnus)Customizing Articles'."
1557 "Fill long lines.
1558 Valid values are nil, t, `head', `first', `last', an integer or a
1559 predicate. See Info node `(gnus)Customizing Articles'."
1565 "Play sounds.
1566 Valid values are nil, t, `head', `first', `last', an integer or a
1567 predicate. See Info node `(gnus)Customizing Articles'."
1574 "Translate articles from one language to another.
1575 Valid values are nil, t, `head', `first', `last', an integer or a
1576 predicate. See Info node `(gnus)Customizing Articles'."
1583 "Verify X-PGP-Sig.
1584 To automatically treat X-PGP-Sig, set it to head.
1585 Valid values are nil, t, `head', `first', `last', an integer or a
1586 predicate. See Info node `(gnus)Customizing Articles'."
1596 ;; Set to nil if more than one protocol added to
1597 ;; gnus-article-encrypt-protocol-alist.
1599 "The protocol used for encrypt articles.
1611 "Whether IDNA decoding of headers is used when viewing messages.
1612 This requires GNU Libidn, and by default only enabled if it is found."
1618 "If non-nil, allow scrolling the article buffer even when there no more text."
1623 ;;; Internal variables
1666 gnus-article-remove-trailing-blank-lines)
1668 gnus-article-strip-leading-blank-lines)
1670 gnus-article-strip-multiple-blank-lines)
1693 ;; This causes the citation match run O(2^n).
1694 ;; (modify-syntax-entry ?- "w" table)
1697 ;; make M-. in article buffers work for `foo' strings
1700 table)
1701 "Syntax table used in article mode buffers.
1712 ;;; Macros for dealing with the article buffer.
1735 "Go to HEADER, which is a regular expression."
1739 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
1747 "Remove hidden text properties from region between B and E."
1754 "Hide text of TYPE between B and E."
1760 "Unhide text of TYPE between B and E."
1769 "Hide text of TYPE in the current buffer."
1777 "Delete text of TYPE in the current buffer."
1781 ;; Remove MIME buttons associated with multipart/alternative parts.
1789 t))
1800 "Delete all invisible text in the current buffer."
1809 "Say whether any text of type TYPE exists in the buffer."
1813 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1821 i))
1824 "Hide unwanted headers and possibly sort them as well."
1826 ;; This function might be inhibited.
1833 ignored visible beg)
1835 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1836 ;; group parameters, so we should go to the summary buffer.
1843 gnus-ignored-headers)
1846 gnus-ignored-headers
1849 gnus-visible-headers)
1853 gnus-visible-headers
1857 ;; First we narrow to just the headers.
1859 ;; Hide any "From " lines at the beginning of (mail) articles.
1864 ;; Then treat the rest of the header lines.
1865 ;; Then we use the two regular expressions
1866 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1867 ;; select which header lines is to remain visible in the
1868 ;; article buffer.
1871 ;; Mark the rank of the header.
1883 ;; We delete the unwanted headers.
1890 "Toggle hiding of headers that aren't very interesting.
1891 If given a negative prefix, always show; if given a positive prefix,
1892 always hide."
1904 ;; Hide empty headers.
1916 ;; Hide boring Newsgroups header.
1922 gnus-newsgroup-name
1934 ;; only one address in To
1936 to-address)))
1947 ;; only one address in To
1949 to-list)))
1960 ;; only one address in CC
1962 to-list)))
1977 from reply-to
1991 ;; If date in `gnus-article-buffer' is localized
1992 ;; (`gnus-treat-date-user-defined'),
1993 ;; `days-between' might fail.
2051 "Make all header lines 40 characters long."
2054 column)
2061 gnus-article-normalized-header-length)
2065 ? )))
2074 ;; Do nothing.
2075 ))
2079 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
2080 Note that this function guesses whether a character is a sm*rtq**t* or
2081 not, so it should only be used interactively.
2083 Sm*rtq**t*s are M****s***'s unilateral extension to the
2084 iso-8859-1 character map in an attempt to provide more quoting
2086 you're expecting some kind of apostrophe or quotation mark, then
2087 try this wash."
2092 "Translate all characters in the body of the article according to FROM and TO.
2093 FROM is a string of characters to translate from; to is a string of
2094 characters to translate to."
2109 "Translate all string in the body of the article according to MAP.
2120 "Translate overstrikes into bold text."
2128 ;; We do the boldification/underlining by hiding the
2129 ;; overstrikes and putting the proper text property
2130 ;; on the letters.
2146 "Translate ANSI SGR control sequences into overlays or extents."
2154 "Unfold folded message headers.
2155 Only the headers that fit into the current window width will be
2156 unfolded."
2181 "Fold message headers."
2204 "Remove all images from the article buffer."
2211 "Unfold folded message headers.
2212 Only the headers that fit into the current window width will be
2213 unfolded."
2225 "Value of `truncate-lines' in Gnus Article buffer.
2226 Valid values are nil, t, `head', `first', `last', an integer or a
2227 predicate. See Info node `(gnus)Customizing Articles'."
2230 ;; :link '(custom-manual "(gnus)Customizing Articles")
2234 "Toggle whether to fold or truncate long lines in article the buffer.
2235 If ARG is non-nil and not a number, toggle
2236 `gnus-article-truncate-lines' too. If ARG is a number, truncate
2237 long lines iff arg is positive."
2253 ;; In versions of Emacs 22 (CVS) before 2006-05-26,
2254 ;; `toggle-truncate-lines' needs an argument.
2258 "Place a boundary line at the end of the headers."
2275 "Fill lines that are wider than the window width."
2295 "Capitalize the first word in each sentence."
2306 "Remove trailing CRs and then translate remaining CRs into LFs."
2318 "Remove all trailing blank lines from the article."
2337 "Display any Face headers in the header."
2341 ;; When displaying parts, this function can be called several times on
2342 ;; the same article, without any intended toggle semantic (as typing `W
2343 ;; D d' would have). So face deletion must occur only when we come from
2344 ;; an interactive command, that is when the *Article* buffer is
2345 ;; read-only.
2349 face faces)
2358 ;; Check whether this face is censored.
2363 from))))
2384 "Look for an X-Face header and display it if present."
2388 ;; Delete the old process, if any.
2391 ;; See the comment in `article-display-face'.
2393 ;; We have already displayed X-Faces, so we remove them
2394 ;; instead.
2396 ;; Display X-Faces.
2398 x-faces face)
2403 ;; If type `W f', use gnus-original-article-buffer,
2404 ;; otherwise use the current buffer because displaying
2405 ;; RFC822 parts calls this function too.
2411 ;; Check whether this face is censored.
2416 from))))
2420 ;; We display the face.
2422 ;; The command is a lisp function, so we call it.
2425 ;; The command is a string, so we interpret the command
2426 ;; as a, well, command, and fork it off.
2430 "article-x-face" nil shell-file-name
2431 shell-command-switch gnus-article-x-face-command)
2432 nil)
2433 ;; Sending multiple EOFs to xv doesn't work,
2434 ;; so we only do a single external face.
2442 gnus-article-x-face-command
2446 "Decode all MIME-encoded words in the article."
2453 gnus-newsgroup-ignored-charsets)))
2457 "Decode charset-encoded text in the article.
2458 If PROMPT (the prefix), prompt for a coding system to use."
2467 gnus-newsgroup-ignored-charsets))
2468 ct cte ctl charset format)
2491 ;; The text code could have been decoded.
2502 "Remove encoded-word encoding from headers."
2509 gnus-newsgroup-ignored-charsets))
2511 end start)
2530 "Decode group names in Newsgroups, Followup-To and Xref headers."
2534 regexp)
2536 gnus-group-name-charset-group-alist)
2548 ;; XXX how to use data in article buffer?
2552 gnus-newsgroup-name method))
2559 "Decode IDNA strings in RHS in various headers in current buffer.
2560 The following headers are decoded: From:, To:, Cc:, Reply-To:,
2561 Mail-Reply-To: and Mail-Followup-To:."
2580 "Translate a quoted-printable-encoded article.
2581 If FORCE, decode the article whether it is marked as quoted-printable
2582 or not.
2583 If READ-CHARSET, ask for a coding system."
2609 "Translate a base64 article.
2610 If FORCE, decode the article whether it is marked as base64 not.
2611 If READ-CHARSET, ask for a coding system."
2643 "Translate a HZ-encoded article."
2651 "Remove the newlines that some other mailers insert into URLs."
2664 "Format an HTML article.
2665 If READ-CHARSET, ask for a coding system. If it is a number, the
2666 charset defined in `gnus-summary-show-article-charset-alist' is used."
2670 charset)
2676 gnus-summary-show-article-charset-alist))))
2707 ;; External.
2711 "Wash the current buffer with w3."
2721 ;; External.
2725 "Wash the current buffer with emacs-w3m."
2728 w3m-force-redisplay)
2732 w3m-minor-mode-map)
2736 ;; Put the mark meaning this part was rendered by emacs-w3m.
2742 "Wash the current buffer with w3m."
2746 ;; The default.
2757 "List of temporary files created by `gnus-article-browse-html-parts'.
2761 "What to do with temporary files from `gnus-article-browse-html-parts'.
2762 If nil, don't delete temporary files. If it is t, delete them on
2763 exit from the summary buffer. If it is the symbol `file', query
2764 on each file, if it is `ask' ask once when exiting from the
2765 summary buffer."
2773 ;; Cf. mm-postponed-undisplay-list / mm-destroy-postponed-undisplay-list.
2776 "Delete temp-files created by `gnus-article-browse-html-parts'."
2782 "Delete all %s temporary HTML file(s)? "
2788 ;; `how' is neither `nil', `ask' nor `t' (i.e. `file'):
2792 ;; Also remove file from the list when not deleted or if file doesn't
2793 ;; exist anymore.
2795 gnus-article-browse-html-temp-list)
2799 Recurse into multiparts. The optional HEADER that should be a decoded
2801 ;; Internal function used by `gnus-article-browse-html-article'.
2803 ;; Find and show the html-parts.
2805 ;; If HTML, show it:
2820 nil)))
2826 header
2829 ;; Do we need to care for 8.3 filenames?
2831 ;; Add a meta html tag to specify charset and a header.
2849 ;; We have to examine charset one by one since
2850 ;; charset specified in parts might be different.
2854 charset)
2858 charset))
2864 hcharset)))
2867 coding hcharset)))
2878 title coding))
2885 title charset))
2889 charset))))
2895 title coding))
2938 ;; FIXME: Warn if there's an <img> tag?
2941 ;; If multipart, recurse
2956 gnus-visible-headers)))
2966 showed))
2970 The message header is added to the beginning of every html part unless
2971 the prefix argument ARG is given.
2973 Warning: Spammers use links to images in HTML articles to verify
2974 whether you have read the message. As
2975 `gnus-article-browse-html-article' passes the HTML content to the
2977 use it for mails from trusted senders.
2979 If you always want to display HTML parts in the browser, set
2980 `mm-text-html-renderer' to nil."
2981 ;; Cf. `mm-w3m-safe-url-regexp'
2986 gnus-visible-headers))
2987 ;; As we insert a <hr>, there's no need for the body boundary.
3001 parts)
3004 ;; If singlepart, enforce a list.
3008 ;; Process the list
3016 "Remove list identifies from the Subject header.
3017 The `gnus-list-identifiers' variable specifies what to do."
3022 gnus-list-identifiers))
3031 nil t)
3039 "Toggle hiding of any PEM headers and signatures in the current article.
3040 If given a negative prefix, always show; if given a positive prefix,
3041 always hide."
3047 ;; Hide the horrendously ugly "header".
3050 nil t)
3054 end
3059 ;; Hide the trailer as well
3061 nil t)
3066 "Strip the banners specified by the `banner' group parameter and by
3067 `gnus-article-address-banner-alist'."
3076 ;; Note that the From header is decoded here, so it is
3077 ;; required that the *-extract-address-components function
3078 ;; supports non-ASCII text.
3086 from))))
3094 "Strip the banner specified by the argument."
3116 "Translate article using an online translation service."
3131 "Hide the signature in the current article.
3132 If given a negative prefix, always show; if given a positive prefix,
3133 always hide."
3145 "Strip offensive headers from bodies."
3154 "Remove all blank lines from the beginning of the article."
3165 "Narrow the buffer to the head of the message.
3166 Point is left at the beginning of the narrowed-to region."
3175 "Place point at the start of the body."
3178 ;; This variable is only bound when dealing with separate
3179 ;; MIME body parts.
3181 t)
3183 t)
3186 nil)))
3189 "Replace consecutive blank lines with one empty line."
3194 ;; First make all blank lines empty.
3200 ;; Then replace multiple empty lines with a single empty line.
3208 "Remove all white space from the beginning of the lines in the article."
3218 "Remove all white space from the end of the lines in the article."
3228 "Strip leading, trailing and multiple blank lines."
3235 "Strip all blank lines."
3245 "Narrow to the signature; return t if a signature is found, else nil."
3249 ;; Check whether we have some limits to what we consider
3250 ;; to be a signature.
3253 limit limited)
3265 limits nil)))
3268 t)))))
3271 "Search the current buffer for the signature separator.
3272 Put point at the beginning of the signature separator."
3281 seps))
3282 t
3284 nil)))
3287 "Return the current prefix arg as a number, or 0 if no prefix."
3293 "Return nil if hiding is necessary.
3294 Arg can be nil or a number. nil and positive means hide, negative
3295 means show, 0 means toggle."
3302 nil)
3305 t)
3310 t)
3311 nil)))))))
3314 "Say whether the current buffer contains hidden text of type TYPE."
3322 'hidden
3323 nil)))
3326 "Show all hidden text of type TYPE.
3327 Originally it is hide instead of DUMMY."
3331 'article-type type
3334 gnus-hidden-properties)))
3347 "Move point to the start of the next header.
3348 If the current header is a continuation header, this can be several
3349 lines forward."
3358 "Convert DATE date to universal time in the current article.
3359 If TYPE is `local', convert to local time; if it is `lapsed', output
3360 how much time has lapsed since DATE. For `lapsed', the value of
3366 tdate-regexp)
3372 tdate-regexp)))
3376 pos date bface eface)
3386 t))
3396 ;; Delete any old Date headers.
3415 ;; Do highlighting.
3427 "Return a DATE line of TYPE."
3433 ;; Convert to the local timezone.
3436 ;; Convert to Universal Time.
3450 ;; Get the original date from the article.
3454 date)))
3455 ;; Let the user define the format.
3459 gnus-article-time-format)
3461 gnus-article-time-format)))
3465 ;; ISO 8601.
3469 "Date: "
3474 ;; Do an X-Sent lapsed format.
3476 ;; If the date is seriously mangled, the timezone functions are
3477 ;; liable to bug out, so we ignore all errors.
3484 num prev)
3492 "X-Sent: "
3493 ;; This is a bit convoluted, but basically we go
3494 ;; through the time units for years, weeks, etc,
3495 ;; and divide things to see whether that results
3496 ;; in positive answers.
3500 ;; The (remaining) seconds are too few to
3501 ;; be divided into this time unit.
3502 ""
3503 ;; It's big enough, so we output it.
3512 ;; If dates are odd, then it might appear like the
3513 ;; article was sent in the future.
3515 " ago"
3517 ;; Display the date in proper English
3521 "Date: the "
3530 " of "
3532 " "
3534 " at "
3536 ":"
3542 "Convert the current article date to the local timezone."
3547 "Convert the current article date to something that is proper English."
3552 "Convert the current article date to what it was originally.
3553 This is only useful if you have used some other date conversion
3554 function and want to see what the date was before converting."
3559 "Convert the current article date to time lapsed since it was sent."
3564 "Function to be run from a timer to update the lapsed time line."
3582 "Start a timer to update the X-Sent header in the article buffers.
3583 The numerical prefix says how frequently (in seconds) the function
3584 is to run."
3593 "Stop the X-Sent timer."
3600 "Convert the current article date to the user-defined format.
3601 This format is defined by the `gnus-article-time-format' variable."
3606 "Convert the current article date to ISO8601."
3611 "Save the original date as a text property and evaluate FORMS."
3620 nil t))
3626 ,@forms
3631 ;; (defun article-show-all ()
3632 ;; "Show all hidden text in the article buffer."
3633 ;; (interactive)
3634 ;; (save-excursion
3635 ;; (let ((inhibit-read-only t))
3636 ;; (gnus-article-unhide-text (point-min) (point-max)))))
3639 "Remove excessive whitespace from all headers."
3650 "Emphasize text according to `gnus-emphasis-alist'."
3657 gnus-article-emphasis-alist)
3659 gnus-emphasis-alist))
3662 gnus-hidden-properties))
3663 regexp elem beg invisible visible face)
3684 "Setup newsgroup emphasis alist."
3696 highlight)
3701 gnus-emphasis-alist)))))
3706 ;;; Saving functions.
3709 "Save the currently selected article."
3712 ;; Remove headers according to `gnus-saved-headers' or the value
3713 ;; of the `:headers' property that the saver function might have.
3716 gnus-saved-headers gnus-visible-headers))
3723 ;; !!! Magic! The saving functions all save
3724 ;; `gnus-save-article-buffer' (or so they think), but we
3725 ;; bind that variable to our save-buffer.
3740 function group headers variable
3741 dir-var)
3744 result)
3749 default-name)
3751 default-name)
3764 gnus-number-of-articles-to-be-saved)
3767 ;; Let the split methods have their say.
3769 ;; No split name was found.
3775 default-name))
3776 ;; A single group name is returned.
3785 default-name))
3786 ;; A single split name was found
3790 gnus-article-save-directory))
3797 dir name)))
3798 ;; A list of splits was found.
3808 gnus-article-save-directory
3810 gnus-article-save-directory)))
3812 ;; Create the directory.
3814 ;; If we have read a directory, we append the default file name.
3817 default-name)
3819 ;; Possibly translate some characters.
3826 result))
3836 "If GROUP is an nndoc group, return the name of the parent group."
3841 "Append this article to Rmail file.
3842 Optional argument FILENAME specifies file name.
3843 Directory to save to is default to `gnus-article-save-directory'."
3845 "Save %s in rmail file" filename
3846 gnus-rmail-save-name gnus-newsgroup-name
3853 filename)
3856 "Append this article to Unix mail file.
3857 Optional argument FILENAME specifies file name.
3858 Directory to save to is default to `gnus-article-save-directory'."
3860 "Save %s in Unix mail file" filename
3861 gnus-mail-save-name gnus-newsgroup-name
3872 filename)
3877 "Append this article to file.
3878 Optional argument FILENAME specifies file name.
3879 Directory to save to is default to `gnus-article-save-directory'."
3881 "Save %s in file" filename
3882 gnus-file-save-name gnus-newsgroup-name
3892 filename)
3898 "Write this article to a file, overwriting it if the file exists.
3899 Optional argument FILENAME specifies file name.
3900 The directory to save in defaults to `gnus-article-save-directory'."
3902 "Save %s in file" filename
3903 gnus-file-save-name gnus-newsgroup-name
3909 "Append this article body to a file.
3910 Optional argument FILENAME specifies file name.
3911 The directory to save in defaults to `gnus-article-save-directory'."
3913 "Save %s body in file" filename
3914 gnus-file-save-name gnus-newsgroup-name
3926 filename)
3932 "Write this article body to a file, overwriting it if the file exists.
3933 Optional argument FILENAME specifies file name.
3934 The directory to save in defaults to `gnus-article-save-directory'."
3936 "Save %s body in file" filename
3937 gnus-file-save-name gnus-newsgroup-name
3942 "Pipe this article to subprocess."
3945 gnus-last-shell-command)
3946 gnus-last-shell-command)
3948 command)
3951 "Shell command on %s: "
3955 gnus-number-of-articles-to-be-saved)
3957 gnus-last-shell-command))))
3969 "Pipe this article to muttprint."
3971 "Print using command: " gnus-summary-muttprint-program
3972 nil gnus-summary-muttprint-program))
3975 ;;; Article file names when saving.
3978 "Capitalize NEWSGROUP name."
3984 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
3985 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
3986 Otherwise, it is like ~/News/news/group/num."
3993 gnus-article-save-directory)))
3998 default
4002 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4003 If variable `gnus-use-long-file-name' is non-nil, it is
4004 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
4008 newsgroup
4011 gnus-article-save-directory)))
4016 default
4020 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4021 If variable `gnus-use-long-file-name' is non-nil, it is
4022 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
4026 newsgroup
4029 default-directory))
4030 gnus-article-save-directory)))
4033 "Generate file name from sender."
4039 gnus-article-save-directory)))
4042 "Verify X-PGP-Sig."
4043 ;; <ftp://ftp.isc.org/pub/pgpcontrol/FORMAT>
4048 items info headers)
4050 mml2015-use
4058 ;; Don't verify multiple headers.
4108 ;; Do highlighting.
4117 "Verify Cancel-Lock header."
4141 article-verify-x-pgp-sig
4142 article-verify-cancel-lock
4143 article-hide-boring-headers
4144 article-treat-overstrike
4145 article-treat-ansi-sequences
4146 article-fill-long-lines
4147 article-capitalize-sentences
4148 article-remove-cr
4149 article-remove-leading-whitespace
4150 article-display-x-face
4151 article-display-face
4152 article-de-quoted-unreadable
4153 article-de-base64-unreadable
4154 article-decode-HZ
4155 article-wash-html
4156 article-unsplit-urls
4157 article-hide-list-identifiers
4158 article-strip-banner
4159 article-babel
4160 article-hide-pem
4161 article-hide-signature
4162 article-strip-headers-in-body
4163 article-remove-trailing-blank-lines
4164 article-strip-leading-blank-lines
4165 article-strip-multiple-blank-lines
4166 article-strip-leading-space
4167 article-strip-trailing-space
4168 article-strip-blank-lines
4169 article-strip-all-blank-lines
4170 article-date-local
4171 article-date-english
4172 article-date-iso8601
4173 article-date-original
4174 article-date-ut
4175 article-decode-mime-words
4176 article-decode-charset
4177 article-decode-encoded-words
4178 article-date-user
4179 article-date-lapsed
4180 article-emphasize
4181 article-treat-dumbquotes
4182 article-normalize-headers
4183 ;;(article-show-all . gnus-article-show-all-headers)
4184 )))
4185 \f
4186 ;;;
4187 ;;; Gnus article mode
4188 ;;;
4195 " " gnus-article-goto-next-page
4197 [delete] gnus-article-goto-prev-page
4198 [backspace] gnus-article-goto-prev-page
4199 "\C-c^" gnus-article-refer-article
4200 "h" gnus-article-show-summary
4201 "s" gnus-article-show-summary
4202 "\C-c\C-m" gnus-article-mail
4203 "?" gnus-article-describe-briefly
4204 "e" gnus-summary-edit-article
4205 "<" beginning-of-buffer
4206 ">" end-of-buffer
4207 "\C-c\C-i" gnus-info-find-node
4208 "\C-c\C-b" gnus-bug
4209 "R" gnus-article-reply-with-original
4210 "F" gnus-article-followup-with-original
4211 "\C-hk" gnus-article-describe-key
4212 "\C-hc" gnus-article-describe-key-briefly
4213 "\C-hb" gnus-article-describe-bindings
4215 "\C-d" gnus-article-read-summary-keys
4216 "\M-*" gnus-article-read-summary-keys
4217 "\M-#" gnus-article-read-summary-keys
4218 "\M-^" gnus-article-read-summary-keys
4219 "\M-g" gnus-article-read-summary-keys)
4221 (substitute-key-definition
4222 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
4224 (gnus-define-keys (gnus-article-send-map "S" gnus-article-mode-map)
4225 "W" gnus-article-wide-reply-with-original)
4226 (if (featurep 'xemacs)
4227 (set-keymap-default-binding gnus-article-send-map
4228 'gnus-article-read-summary-send-keys)
4229 (define-key gnus-article-send-map [t] 'gnus-article-read-summary-send-keys))
4231 (defun gnus-article-make-menu-bar ()
4232 (unless (boundp 'gnus-article-commands-menu)
4233 (gnus-summary-make-menu-bar))
4234 (gnus-turn-off-edit-menu 'article)
4235 (unless (boundp 'gnus-article-article-menu)
4236 (easy-menu-define
4237 gnus-article-article-menu gnus-article-mode-map ""
4238 '("Article"
4239 ["Scroll forwards" gnus-article-goto-next-page t]
4240 ["Scroll backwards" gnus-article-goto-prev-page t]
4241 ["Show summary" gnus-article-show-summary t]
4242 ["Fetch Message-ID at point" gnus-article-refer-article t]
4243 ["Mail to address at point" gnus-article-mail t]
4244 ["Send a bug report" gnus-bug t]))
4246 (easy-menu-define
4247 gnus-article-treatment-menu gnus-article-mode-map ""
4248 ;; Fixme: this should use :active (and maybe :visible).
4249 '("Treatment"
4250 ["Hide headers" gnus-article-hide-headers t]
4251 ["Hide signature" gnus-article-hide-signature t]
4252 ["Hide citation" gnus-article-hide-citation t]
4253 ["Treat overstrike" gnus-article-treat-overstrike t]
4254 ["Treat ANSI sequences" gnus-article-treat-ansi-sequences t]
4255 ["Remove carriage return" gnus-article-remove-cr t]
4256 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
4257 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
4258 ["Remove base64" gnus-article-de-base64-unreadable t]
4259 ["Treat html" gnus-article-wash-html t]
4260 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
4261 ["Decode HZ" gnus-article-decode-HZ t]))
4263 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
4265 ;; Note "Post" menu is defined in gnus-sum.el for consistency
4267 (gnus-run-hooks 'gnus-article-menu-hook)))
4269 (defun gnus-article-mode ()
4270 "Major mode for displaying an article.
4272 All normal editing commands are switched off.
4274 The following commands are available in addition to all summary mode
4275 commands:
4284 (interactive)
4285 (kill-all-local-variables)
4286 (gnus-simplify-mode-line)
4287 (setq mode-name "Article")
4288 (setq major-mode 'gnus-article-mode)
4289 (make-local-variable 'minor-mode-alist)
4290 (use-local-map gnus-article-mode-map)
4291 (when (gnus-visual-p 'article-menu 'menu)
4292 (gnus-article-make-menu-bar)
4293 (when gnus-summary-tool-bar-map
4294 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
4295 (gnus-update-format-specifications nil 'article-mode)
4296 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
4297 (set (make-local-variable 'gnus-page-broken) nil)
4298 (make-local-variable 'gnus-button-marker-list)
4299 (make-local-variable 'gnus-article-current-summary)
4300 (make-local-variable 'gnus-article-mime-handles)
4301 (make-local-variable 'gnus-article-decoded-p)
4302 (make-local-variable 'gnus-article-mime-handle-alist)
4303 (make-local-variable 'gnus-article-wash-types)
4304 (make-local-variable 'gnus-article-image-alist)
4305 (make-local-variable 'gnus-article-charset)
4306 (make-local-variable 'gnus-article-ignored-charsets)
4307 ;; Prevent Emacs 22 from displaying non-break space with `nobreak-space'
4308 ;; face.
4309 (set (make-local-variable 'nobreak-char-display) nil)
4310 (setq cursor-in-non-selected-windows nil)
4311 (setq truncate-lines gnus-article-truncate-lines)
4312 (gnus-set-default-directory)
4313 (buffer-disable-undo)
4314 (setq buffer-read-only t
4315 show-trailing-whitespace nil)
4316 (set-syntax-table gnus-article-mode-syntax-table)
4317 (mm-enable-multibyte)
4318 (gnus-run-mode-hooks 'gnus-article-mode-hook))
4320 (defvar gnus-button-marker-list nil
4321 "Regexp matching any of the regexps from `gnus-button-alist'.
4322 Internal variable.")
4324 (defun gnus-article-setup-buffer ()
4325 "Initialize the article buffer."
4326 (let* ((name (if gnus-single-article-buffer "*Article*"
4327 (concat "*Article " gnus-newsgroup-name "*")))
4328 (original
4330 (concat " *Original Article"
4331 (substring name (match-end 0))))))
4332 (setq gnus-article-buffer name)
4333 (setq gnus-original-article-buffer original)
4334 (setq gnus-article-mime-handle-alist nil)
4335 (with-current-buffer gnus-summary-buffer
4336 ;; This might be a variable local to the summary buffer.
4337 (unless gnus-single-article-buffer
4338 (setq gnus-article-buffer name)
4339 (setq gnus-original-article-buffer original)
4340 (gnus-set-global-variables)))
4341 (gnus-article-setup-highlight-words)
4342 ;; Init original article buffer.
4343 (with-current-buffer (gnus-get-buffer-create gnus-original-article-buffer)
4344 (mm-enable-multibyte)
4345 (setq major-mode 'gnus-original-article-mode)
4346 (make-local-variable 'gnus-original-article))
4347 (if (and (get-buffer name)
4348 (with-current-buffer name
4349 (if gnus-article-edit-mode
4350 (if (y-or-n-p "Article mode edit in progress; discard? ")
4351 (progn
4352 (set-buffer-modified-p nil)
4353 (gnus-kill-buffer name)
4354 (message "")
4355 nil)
4356 (error "Action aborted"))
4357 t)))
4358 (with-current-buffer name
4359 (set (make-local-variable 'gnus-article-edit-mode) nil)
4360 (when gnus-article-mime-handles
4361 (mm-destroy-parts gnus-article-mime-handles)
4362 (setq gnus-article-mime-handles nil))
4363 ;; Set it to nil in article-buffer!
4364 (setq gnus-article-mime-handle-alist nil)
4365 (buffer-disable-undo)
4366 (setq buffer-read-only t)
4367 ;; This list just keeps growing if we don't reset it.
4368 (setq gnus-button-marker-list nil)
4369 (unless (eq major-mode 'gnus-article-mode)
4370 (gnus-article-mode))
4371 (current-buffer))
4372 (with-current-buffer (gnus-get-buffer-create name)
4373 (gnus-article-mode)
4374 (make-local-variable 'gnus-summary-buffer)
4375 (setq gnus-summary-buffer
4376 (gnus-summary-buffer-name gnus-newsgroup-name))
4377 (gnus-summary-set-local-parameters gnus-newsgroup-name)
4378 (current-buffer)))))
4380 ;; Set article window start at LINE, where LINE is the number of lines
4381 ;; from the head of the article.
4382 (defun gnus-article-set-window-start (&optional line)
4383 (let ((article-window (gnus-get-buffer-window gnus-article-buffer t)))
4384 (when article-window
4385 (set-window-start
4386 article-window
4387 (with-current-buffer gnus-article-buffer
4388 (goto-char (point-min))
4389 (if (not line)
4390 (point-min)
4391 (gnus-message 6 "Moved to bookmark")
4393 (forward-line line)
4394 (point)))))))
4396 (defun gnus-article-prepare (article &optional all-headers header)
4397 "Prepare ARTICLE in article mode buffer.
4398 ARTICLE should either be an article number or a Message-ID.
4399 If ARTICLE is an id, HEADER should be the article headers.
4400 If ALL-HEADERS is non-nil, no headers are hidden."
4401 (save-excursion
4402 ;; Make sure we start in a summary buffer.
4403 (unless (eq major-mode 'gnus-summary-mode)
4404 (set-buffer gnus-summary-buffer))
4405 (setq gnus-summary-buffer (current-buffer))
4406 (let* ((gnus-article (if header (mail-header-number header) article))
4407 (summary-buffer (current-buffer))
4408 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
4409 (group gnus-newsgroup-name)
4410 result)
4411 (save-excursion
4412 (gnus-article-setup-buffer)
4413 (set-buffer gnus-article-buffer)
4414 ;; Deactivate active regions.
4415 (when (and (boundp 'transient-mark-mode)
4416 transient-mark-mode)
4417 (setq mark-active nil))
4418 (if (not (setq result (let ((inhibit-read-only t))
4419 (gnus-request-article-this-buffer
4420 article group))))
4421 ;; There is no such article.
4422 (save-excursion
4423 (when (and (numberp article)
4424 (not (memq article gnus-newsgroup-sparse)))
4425 (setq gnus-article-current
4426 (cons gnus-newsgroup-name article))
4427 (set-buffer gnus-summary-buffer)
4428 (setq gnus-current-article article)
4429 (if (and (memq article gnus-newsgroup-undownloaded)
4430 (not (gnus-online (gnus-find-method-for-group
4431 gnus-newsgroup-name))))
4432 (progn
4433 (gnus-summary-set-agent-mark article)
4434 (message "Message marked for downloading"))
4435 (gnus-summary-mark-article article gnus-canceled-mark)
4436 (unless (memq article gnus-newsgroup-sparse)
4437 (gnus-error 1 "No such article (may have expired or been canceled)")))))
4438 (if (or (eq result 'pseudo)
4439 (eq result 'nneething))
4440 (progn
4441 (with-current-buffer summary-buffer
4442 (push article gnus-newsgroup-history)
4443 (setq gnus-last-article gnus-current-article
4444 gnus-current-article 0
4445 gnus-current-headers nil
4446 gnus-article-current nil)
4447 (if (eq result 'nneething)
4448 (gnus-configure-windows 'summary)
4449 (gnus-configure-windows 'article))
4450 (gnus-set-global-variables))
4451 (let ((gnus-article-mime-handle-alist-1
4452 gnus-article-mime-handle-alist))
4453 (gnus-set-mode-line 'article)))
4454 ;; The result from the `request' was an actual article -
4455 ;; or at least some text that is now displayed in the
4456 ;; article buffer.
4457 (when (and (numberp article)
4458 (not (eq article gnus-current-article)))
4459 ;; Seems like a new article has been selected.
4460 ;; `gnus-current-article' must be an article number.
4461 (with-current-buffer summary-buffer
4462 (push article gnus-newsgroup-history)
4463 (setq gnus-last-article gnus-current-article
4464 gnus-current-article article
4465 gnus-current-headers
4466 (gnus-summary-article-header gnus-current-article)
4467 gnus-article-current
4468 (cons gnus-newsgroup-name gnus-current-article))
4469 (unless (vectorp gnus-current-headers)
4470 (setq gnus-current-headers nil))
4471 (gnus-summary-goto-subject gnus-current-article)
4472 (when (gnus-summary-show-thread)
4473 ;; If the summary buffer really was folded, the
4474 ;; previous goto may not actually have gone to
4475 ;; the right article, but the thread root instead.
4476 ;; So we go again.
4477 (gnus-summary-goto-subject gnus-current-article))
4478 (gnus-run-hooks 'gnus-mark-article-hook)
4479 (gnus-set-mode-line 'summary)
4480 (when (gnus-visual-p 'article-highlight 'highlight)
4481 (gnus-run-hooks 'gnus-visual-mark-article-hook))
4482 ;; Set the global newsgroup variables here.
4483 (gnus-set-global-variables)
4484 (setq gnus-have-all-headers
4485 (or all-headers gnus-show-all-headers))))
4486 (save-excursion
4487 (gnus-configure-windows 'article))
4488 (when (or (numberp article)
4489 (stringp article))
4490 (gnus-article-prepare-display)
4491 ;; Do page break.
4492 (goto-char (point-min))
4493 (when gnus-break-pages
4494 (gnus-narrow-to-page)))
4495 (let ((gnus-article-mime-handle-alist-1
4496 gnus-article-mime-handle-alist))
4497 (gnus-set-mode-line 'article))
4498 (article-goto-body)
4499 (unless (bobp)
4500 (forward-line -1))
4501 (set-window-point (get-buffer-window (current-buffer)) (point))
4502 (gnus-configure-windows 'article)
4503 t))))))
4505 ;;;###autoload
4506 (defun gnus-article-prepare-display ()
4507 "Make the current buffer look like a nice article."
4508 ;; Hooks for getting information from the article.
4509 ;; This hook must be called before being narrowed.
4510 (let ((gnus-article-buffer (current-buffer))
4511 buffer-read-only
4512 (inhibit-read-only t))
4513 (unless (eq major-mode 'gnus-article-mode)
4514 (gnus-article-mode))
4515 (setq buffer-read-only nil
4516 gnus-article-wash-types nil
4517 gnus-article-image-alist nil)
4518 (gnus-run-hooks 'gnus-tmp-internal-hook)
4519 (when gnus-display-mime-function
4520 (funcall gnus-display-mime-function))
4521 (gnus-run-hooks 'gnus-article-prepare-hook)))
4523 ;;;
4524 ;;; Gnus Sticky Article Mode
4525 ;;;
4527 (define-derived-mode gnus-sticky-article-mode gnus-article-mode "StickyArticle"
4528 "Mode for sticky articles."
4529 ;; Release bindings that won't work.
4530 (substitute-key-definition 'gnus-article-read-summary-keys 'undefined
4531 gnus-sticky-article-mode-map)
4532 (substitute-key-definition 'gnus-article-refer-article 'undefined
4533 gnus-sticky-article-mode-map)
4534 (dolist (k '("e" "h" "s" "F" "R"))
4535 (define-key gnus-sticky-article-mode-map k nil))
4536 (define-key gnus-sticky-article-mode-map "k" 'gnus-kill-sticky-article-buffer)
4537 (define-key gnus-sticky-article-mode-map "q" 'bury-buffer)
4538 (define-key gnus-sticky-article-mode-map "\C-hc" 'describe-key-briefly)
4539 (define-key gnus-sticky-article-mode-map "\C-hk" 'describe-key))
4541 (defun gnus-sticky-article (arg)
4542 "Make the current article sticky.
4543 If a prefix ARG is given, ask for a name for this sticky article buffer."
4544 (interactive "P")
4545 (gnus-summary-show-thread)
4546 (gnus-summary-select-article nil nil 'pseudo)
4547 (let (new-art-buf-name)
4548 (gnus-eval-in-buffer-window gnus-article-buffer
4549 (setq new-art-buf-name
4550 (concat
4551 "*Sticky Article: "
4552 (if arg
4553 (read-from-minibuffer "Sticky article buffer name: ")
4554 (gnus-with-article-headers
4555 (gnus-article-goto-header "subject")
4556 (setq new-art-buf-name
4557 (buffer-substring-no-properties
4558 (line-beginning-position) (line-end-position)))
4559 (goto-char (point-min))
4560 (gnus-article-goto-header "from")
4561 (setq new-art-buf-name
4562 (concat
4563 new-art-buf-name ", "
4564 (buffer-substring-no-properties
4565 (line-beginning-position) (line-end-position))))
4566 (goto-char (point-min))
4567 (gnus-article-goto-header "date")
4568 (setq new-art-buf-name
4569 (concat
4570 new-art-buf-name ", "
4571 (buffer-substring-no-properties
4572 (line-beginning-position) (line-end-position))))))
4573 "*"))
4574 (if (and (gnus-buffer-live-p new-art-buf-name)
4575 (with-current-buffer new-art-buf-name
4576 (eq major-mode 'gnus-sticky-article-mode)))
4577 (switch-to-buffer new-art-buf-name)
4578 (setq new-art-buf-name (rename-buffer new-art-buf-name t)))
4579 (gnus-sticky-article-mode))
4580 (setq gnus-article-buffer new-art-buf-name))
4581 (gnus-summary-recenter)
4582 (gnus-summary-position-point))
4584 (defun gnus-kill-sticky-article-buffer (&optional buffer)
4585 "Kill the given sticky article BUFFER.
4586 If none is given, assume the current buffer and kill it if it has
4587 `gnus-sticky-article-mode'."
4588 (interactive)
4589 (unless buffer
4590 (setq buffer (current-buffer)))
4591 (with-current-buffer buffer
4592 (when (eq major-mode 'gnus-sticky-article-mode)
4593 (gnus-kill-buffer buffer))))
4595 (defun gnus-kill-sticky-article-buffers (arg)
4596 "Kill all sticky article buffers.
4597 If a prefix ARG is given, ask for confirmation."
4598 (interactive "P")
4599 (dolist (buf (gnus-buffers))
4600 (with-current-buffer buf
4601 (when (eq major-mode 'gnus-sticky-article-mode)
4602 (if (not arg)
4603 (gnus-kill-buffer buf)
4604 (when (yes-or-no-p (concat "Kill buffer " (buffer-name buf) "? "))
4605 (gnus-kill-buffer buf)))))))
4607 ;;;
4608 ;;; Gnus MIME viewing functions
4609 ;;;
4612 "Format of the MIME buttons.
4614 Valid specifiers include:
4615 %t The MIME type
4616 %T MIME type, along with additional info
4617 %n The `name' parameter
4618 %d The description, if any
4619 %l The length of the encoded part
4620 %p The part identifier number
4621 %e Dots if the part isn't displayed
4623 General format specifiers can also be used. See Info node
4624 `(gnus)Formatting Variables'.")
4626 (defvar gnus-mime-button-line-format-alist
4627 '((?t gnus-tmp-type ?s)
4628 (?T gnus-tmp-type-long ?s)
4629 (?n gnus-tmp-name ?s)
4630 (?d gnus-tmp-description ?s)
4631 (?p gnus-tmp-id ?s)
4632 (?l gnus-tmp-length ?d)
4633 (?e gnus-tmp-dots ?s)))
4635 (defvar gnus-mime-button-commands
4637 (gnus-mime-view-part "v" "View Interactively...")
4638 (gnus-mime-view-part-as-type "t" "View As Type...")
4639 (gnus-mime-view-part-as-charset "C" "View As charset...")
4640 (gnus-mime-save-part "o" "Save...")
4641 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
4642 (gnus-mime-replace-part "r" "Replace part")
4643 (gnus-mime-delete-part "d" "Delete part")
4644 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
4645 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
4646 (gnus-mime-view-part-internally "E" "View Internally") ;; Why `E'?
4647 (gnus-mime-view-part-externally "e" "View Externally")
4648 (gnus-mime-print-part "p" "Print")
4649 (gnus-mime-pipe-part "|" "Pipe To Command...")
4650 (gnus-mime-action-on-part "." "Take action on the part...")))
4652 (defun gnus-article-mime-part-status ()
4653 (if gnus-article-mime-handle-alist-1
4654 (if (eq 1 (length gnus-article-mime-handle-alist-1))
4655 " (1 part)"
4656 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
4657 ""))
4659 (defvar gnus-mime-button-map
4660 (let ((map (make-sparse-keymap)))
4661 (define-key map gnus-mouse-2 'gnus-article-push-button)
4662 (define-key map gnus-down-mouse-3 'gnus-mime-button-menu)
4663 (dolist (c gnus-mime-button-commands)
4664 (define-key map (cadr c) (car c)))
4665 map))
4667 (easy-menu-define
4668 gnus-mime-button-menu gnus-mime-button-map "MIME button menu."
4669 `("MIME Part"
4670 ,@(mapcar (lambda (c)
4671 (vector (caddr c) (car c) :active t))
4672 gnus-mime-button-commands)))
4674 (defun gnus-mime-button-menu (event prefix)
4675 "Construct a context-sensitive menu of MIME commands."
4677 (save-window-excursion
4678 (let ((pos (event-start event)))
4679 (select-window (posn-window pos))
4680 (goto-char (posn-point pos))
4681 (gnus-article-check-buffer)
4682 (popup-menu gnus-mime-button-menu nil prefix))))
4684 (defun gnus-mime-view-all-parts (&optional handles)
4685 "View all the MIME parts."
4686 (interactive)
4687 (with-current-buffer gnus-article-buffer
4688 (let ((handles (or handles gnus-article-mime-handles))
4689 (mail-parse-charset gnus-newsgroup-charset)
4690 (mail-parse-ignored-charsets
4691 (with-current-buffer gnus-summary-buffer
4692 gnus-newsgroup-ignored-charsets)))
4693 (when handles
4694 (mm-remove-parts handles)
4695 (goto-char (point-min))
4697 (let ((inhibit-read-only t))
4698 (delete-region (point) (point-max))
4699 (mm-display-parts handles))))))
4701 (defun gnus-article-jump-to-part (n)
4702 "Jump to MIME part N."
4703 (interactive "P")
4704 (pop-to-buffer gnus-article-buffer)
4705 ;; FIXME: why is it necessary?
4706 (sit-for 0)
4707 (let ((parts (length gnus-article-mime-handle-alist)))
4708 (or n (setq n
4709 (string-to-number
4710 (read-string ;; Emacs 21 doesn't have `read-number'.
4711 (format "Jump to part (2..%s): " parts)))))
4712 (unless (and (integerp n) (<= n parts) (>= n 1))
4713 (setq n
4714 (progn
4715 (gnus-message 7 "Invalid part `%s', using %s instead."
4716 n parts)
4717 parts)))
4718 (gnus-message 9 "Jumping to part %s." n)
4719 (cond ((>= gnus-auto-select-part 1)
4720 (while (and (<= n parts)
4721 (not (gnus-article-goto-part n)))
4722 (setq n (1+ n))))
4723 ((< gnus-auto-select-part 0)
4724 (while (and (>= n 1)
4725 (not (gnus-article-goto-part n)))
4726 (setq n (1- n))))
4727 (t
4728 (gnus-article-goto-part n)))))
4730 (eval-when-compile
4731 (defsubst gnus-article-edit-part (handles &optional current-id)
4732 "Edit an article in order to delete a mime part.
4733 This function is exclusively used by `gnus-mime-save-part-and-strip'
4734 and `gnus-mime-delete-part', and not provided at run-time normally."
4735 (gnus-article-edit-article
4736 `(lambda ()
4737 (buffer-disable-undo)
4738 (erase-buffer)
4739 (let ((mail-parse-charset (or gnus-article-charset
4740 ',gnus-newsgroup-charset))
4741 (mail-parse-ignored-charsets
4742 (or gnus-article-ignored-charsets
4743 ',gnus-newsgroup-ignored-charsets))
4744 (mbl mml-buffer-list))
4745 (setq mml-buffer-list nil)
4746 (insert-buffer-substring gnus-original-article-buffer)
4747 (mime-to-mml ',handles)
4748 (setq gnus-article-mime-handles nil)
4749 (let ((mbl1 mml-buffer-list))
4750 (setq mml-buffer-list mbl)
4751 (set (make-local-variable 'mml-buffer-list) mbl1))
4752 (gnus-make-local-hook 'kill-buffer-hook)
4753 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
4754 `(lambda (no-highlight)
4755 (let ((mail-parse-charset (or gnus-article-charset
4756 ',gnus-newsgroup-charset))
4757 (message-options message-options)
4758 (message-options-set-recipient)
4759 (mail-parse-ignored-charsets
4760 (or gnus-article-ignored-charsets
4761 ',gnus-newsgroup-ignored-charsets)))
4762 (mml-to-mime)
4763 (mml-destroy-buffers)
4764 (remove-hook 'kill-buffer-hook
4765 'mml-destroy-buffers t)
4766 (kill-local-variable 'mml-buffer-list))
4767 (gnus-summary-edit-article-done
4768 ,(or (mail-header-references gnus-current-headers) "")
4769 ,(gnus-group-read-only-p)
4770 ,gnus-summary-buffer no-highlight))
4771 t)
4772 (gnus-article-edit-done)
4773 (gnus-summary-expand-window)
4774 (gnus-summary-show-article)
4775 (when (and current-id (integerp gnus-auto-select-part))
4776 (gnus-article-jump-to-part
4777 (if (text-property-any (point-min) (point-max)
4778 'gnus-part (+ current-id gnus-auto-select-part))
4779 (+ current-id gnus-auto-select-part)
4780 (with-current-buffer gnus-article-buffer
4781 (length gnus-article-mime-handle-alist)))))))
4783 (defun gnus-mime-replace-part (file)
4784 "Replace MIME part under point with an external body."
4785 ;; Useful if file has already been saved to disk
4786 (interactive
4787 (list
4788 (read-file-name "Replace MIME part with file: "
4789 (or mm-default-directory default-directory)
4790 nil nil)))
4791 (gnus-mime-save-part-and-strip file))
4793 (defun gnus-mime-save-part-and-strip (&optional file)
4794 "Save the MIME part under point then replace it with an external body.
4795 If FILE is given, use it for the external part."
4796 (interactive)
4797 (gnus-article-check-buffer)
4798 (when (gnus-group-read-only-p)
4799 (error "The current group does not support deleting of parts"))
4800 (when (mm-complicated-handles gnus-article-mime-handles)
4801 (error "\
4802 The current article has a complicated MIME structure, giving up..."))
4803 (let* ((data (get-text-property (point) 'gnus-data))
4804 (id (get-text-property (point) 'gnus-part))
4805 param
4806 (handles gnus-article-mime-handles))
4807 (unless file
4808 (setq file
4809 (and data (mm-save-part data "Delete MIME part and save to: "))))
4810 (when file
4811 (with-current-buffer (mm-handle-buffer data)
4812 (erase-buffer)
4813 (insert "Content-Type: " (mm-handle-media-type data))
4814 (mml-insert-parameter-string (cdr (mm-handle-type data))
4815 '(charset))
4816 ;; Add a filename for the sake of saving the part again.
4817 (mml-insert-parameter
4818 (mail-header-encode-parameter "name" (file-name-nondirectory file)))
4823 (setcdr data
4824 (cdr (mm-make-handle nil
4825 `("message/external-body"
4826 (access-type . "LOCAL-FILE")
4827 (name . ,file)))))
4828 ;; (set-buffer gnus-summary-buffer)
4829 (gnus-article-edit-part handles id))))
4831 ;; A function like `gnus-summary-save-parts' (`X m', `<MIME> <Extract all
4832 ;; parts...>') but with stripping would be nice.
4834 (defun gnus-mime-delete-part ()
4835 "Delete the MIME part under point.
4836 Replace it with some information about the removed part."
4837 (interactive)
4838 (gnus-article-check-buffer)
4839 (when (gnus-group-read-only-p)
4840 (error "The current group does not support deleting of parts"))
4841 (when (mm-complicated-handles gnus-article-mime-handles)
4842 (error "\
4843 The current article has a complicated MIME structure, giving up..."))
4844 (when (or gnus-expert-user
4845 (gnus-yes-or-no-p "\
4846 Deleting parts may malfunction or destroy the article; continue? "))
4847 (let* ((data (get-text-property (point) 'gnus-data))
4848 (id (get-text-property (point) 'gnus-part))
4849 (handles gnus-article-mime-handles)
4850 (none "(none)")
4851 (description
4852 (let ((desc (mm-handle-description data)))
4853 (when desc
4854 (mail-decode-encoded-word-string desc))))
4855 (filename
4856 (or (mail-content-type-get (mm-handle-disposition data) 'filename)
4857 none))
4858 (type (mm-handle-media-type data)))
4859 (unless data
4860 (error "No MIME part under point"))
4861 (with-current-buffer (mm-handle-buffer data)
4862 (let ((bsize (format "%s" (buffer-size))))
4863 (erase-buffer)
4864 (insert
4865 (concat
4872 (when description
4875 (setcdr data
4876 (cdr (mm-make-handle
4877 nil `("text/plain") nil nil
4878 (list "attachment")
4879 (format "Deleted attachment (%s bytes)" bsize))))))
4880 ;; (set-buffer gnus-summary-buffer)
4881 (gnus-article-edit-part handles id))))
4883 (defun gnus-mime-save-part ()
4884 "Save the MIME part under point."
4885 (interactive)
4886 (gnus-article-check-buffer)
4887 (let ((data (get-text-property (point) 'gnus-data)))
4888 (when data
4889 (mm-save-part data))))
4891 (defun gnus-mime-pipe-part ()
4892 "Pipe the MIME part under point to a process."
4893 (interactive)
4894 (gnus-article-check-buffer)
4895 (let ((data (get-text-property (point) 'gnus-data)))
4896 (when data
4897 (mm-pipe-part data))))
4899 (defun gnus-mime-view-part ()
4900 "Interactively choose a viewing method for the MIME part under point."
4901 (interactive)
4902 (gnus-article-check-buffer)
4903 (let ((data (get-text-property (point) 'gnus-data)))
4904 (when data
4905 (setq gnus-article-mime-handles
4906 (mm-merge-handles
4907 gnus-article-mime-handles (setq data (copy-sequence data))))
4908 (mm-interactively-view-part data))))
4910 (defun gnus-mime-view-part-as-type-internal ()
4911 (gnus-article-check-buffer)
4912 (let* ((handle (get-text-property (point) 'gnus-data))
4913 (name (or
4914 ;; Content-Type: foo/bar; name=...
4915 (mail-content-type-get (mm-handle-type handle) 'name)
4916 ;; Content-Disposition: attachment; filename=...
4917 (cdr (assq 'filename (cdr (mm-handle-disposition handle))))))
4918 (def-type (and name (mm-default-file-encoding name))))
4919 (or (and def-type (cons def-type 0))
4920 (and handle
4921 (equal (mm-handle-media-supertype handle) "text")
4922 '("text/plain" . 0))
4923 '("application/octet-stream" . 0))))
4925 (defun gnus-mime-view-part-as-type (&optional mime-type pred)
4926 "Choose a MIME media type, and view the part as such.
4927 If non-nil, PRED is a predicate to use during completion to limit the
4928 available media-types."
4929 (interactive)
4930 (unless mime-type
4931 (setq mime-type
4932 (let ((default (gnus-mime-view-part-as-type-internal)))
4933 (completing-read
4934 (format "View as MIME type (default %s): "
4935 (car default))
4936 (mapcar #'list (mailcap-mime-types))
4937 pred nil nil nil
4938 (car default)))))
4939 (gnus-article-check-buffer)
4940 (let ((handle (get-text-property (point) 'gnus-data)))
4941 (when handle
4942 (when (equal (mm-handle-media-type handle) "message/external-body")
4943 (unless (mm-handle-cache handle)
4944 (mm-extern-cache-contents handle))
4945 (setq handle (mm-handle-cache handle)))
4946 (setq handle
4947 (mm-make-handle (mm-handle-buffer handle)
4948 (cons mime-type (cdr (mm-handle-type handle)))
4949 (mm-handle-encoding handle)
4950 (mm-handle-undisplayer handle)
4951 (mm-handle-disposition handle)
4952 (mm-handle-description handle)
4953 nil
4954 (mm-handle-id handle)))
4955 (setq gnus-article-mime-handles
4956 (mm-merge-handles gnus-article-mime-handles handle))
4957 (when (mm-handle-displayed-p handle)
4958 (mm-remove-part handle))
4959 (gnus-mm-display-part handle))))
4961 (defun gnus-mime-copy-part (&optional handle arg)
4962 "Put the MIME part under point into a new buffer.
4963 If `auto-compression-mode' is enabled, compressed files like .gz and .bz2
4964 are decompressed."
4965 (interactive (list nil current-prefix-arg))
4966 (gnus-article-check-buffer)
4967 (unless handle
4968 (setq handle (get-text-property (point) 'gnus-data)))
4969 (when handle
4970 (let ((filename (or (mail-content-type-get (mm-handle-type handle)
4971 'name)
4972 (mail-content-type-get (mm-handle-disposition handle)
4973 'filename)))
4974 contents dont-decode charset coding-system)
4975 (mm-with-unibyte-buffer
4976 (mm-insert-part handle)
4977 (setq contents (or (condition-case nil
4978 (mm-decompress-buffer filename nil 'sig)
4979 (error
4980 (setq dont-decode t)
4981 nil))
4982 (buffer-string))))
4983 (setq filename (cond (filename (file-name-nondirectory filename))
4984 (dont-decode "*raw data*")
4985 (t "*decoded*")))
4986 (cond
4987 (dont-decode)
4988 ((not arg)
4989 (unless (setq charset (mail-content-type-get
4990 (mm-handle-type handle) 'charset))
4991 (unless (setq coding-system (mm-with-unibyte-buffer
4992 (insert contents)
4993 (mm-find-buffer-file-coding-system)))
4994 (setq charset gnus-newsgroup-charset))))
4995 ((numberp arg)
4996 (setq charset (or (cdr (assq arg
4997 gnus-summary-show-article-charset-alist))
4998 (mm-read-coding-system "Charset: ")))))
4999 (switch-to-buffer (generate-new-buffer filename))
5000 (if (or coding-system
5001 (and charset
5002 (setq coding-system (mm-charset-to-coding-system charset))
5003 (not (eq charset 'ascii))))
5004 (progn
5005 (mm-enable-multibyte)
5006 (insert (mm-decode-coding-string contents coding-system))
5007 (setq buffer-file-coding-system
5008 (if (boundp 'last-coding-system-used)
5009 (symbol-value 'last-coding-system-used)
5010 coding-system)))
5011 (mm-disable-multibyte)
5012 (insert contents)
5013 (setq buffer-file-coding-system mm-binary-coding-system))
5014 ;; We do it this way to make `normal-mode' set the appropriate mode.
5015 (unwind-protect
5016 (progn
5017 (setq buffer-file-name (expand-file-name filename))
5018 (normal-mode))
5019 (setq buffer-file-name nil))
5020 (goto-char (point-min)))))
5022 (defun gnus-mime-print-part (&optional handle filename)
5023 "Print the MIME part under point."
5024 (interactive (list nil (ps-print-preprint current-prefix-arg)))
5025 (gnus-article-check-buffer)
5026 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5027 (contents (and handle (mm-get-part handle)))
5028 (file (mm-make-temp-file (expand-file-name "mm." mm-tmp-directory)))
5029 (printer (mailcap-mime-info (mm-handle-media-type handle) "print")))
5030 (when contents
5031 (if printer
5032 (unwind-protect
5033 (progn
5034 (mm-save-part-to-file handle file)
5035 (call-process shell-file-name nil
5036 (generate-new-buffer " *mm*")
5037 nil
5038 shell-command-switch
5039 (mm-mailcap-command
5040 printer file (mm-handle-type handle))))
5041 (delete-file file))
5042 (with-temp-buffer
5043 (insert contents)
5044 (gnus-print-buffer))
5045 (ps-despool filename)))))
5047 (defun gnus-mime-inline-part (&optional handle arg)
5048 "Insert the MIME part under point into the current buffer.
5049 Compressed files like .gz and .bz2 are decompressed."
5050 (interactive (list nil current-prefix-arg))
5051 (gnus-article-check-buffer)
5052 (unless handle
5053 (setq handle (get-text-property (point) 'gnus-data)))
5054 (when handle
5055 (let ((b (point))
5056 (inhibit-read-only t)
5057 contents charset coding-system)
5058 (if (and (not arg) (mm-handle-undisplayer handle))
5059 (mm-remove-part handle)
5060 (mm-with-unibyte-buffer
5061 (mm-insert-part handle)
5062 (setq contents
5063 (or (mm-decompress-buffer
5064 (or (mail-content-type-get (mm-handle-type handle)
5065 'name)
5066 (mail-content-type-get (mm-handle-disposition handle)
5067 'filename))
5068 nil t)
5069 (buffer-string))))
5070 (cond
5071 ((not arg)
5072 (unless (setq charset (mail-content-type-get
5073 (mm-handle-type handle) 'charset))
5074 (unless (setq coding-system
5075 (mm-with-unibyte-buffer
5076 (insert contents)
5077 (mm-find-buffer-file-coding-system)))
5078 (setq charset gnus-newsgroup-charset))))
5079 ((numberp arg)
5080 (if (mm-handle-undisplayer handle)
5081 (mm-remove-part handle))
5082 (setq charset
5083 (or (cdr (assq arg
5084 gnus-summary-show-article-charset-alist))
5085 (mm-read-coding-system "Charset: "))))
5086 (t
5087 (if (mm-handle-undisplayer handle)
5088 (mm-remove-part handle))))
5089 (forward-line 2)
5090 (mm-insert-inline
5091 handle
5092 (if (or coding-system
5093 (and charset
5094 (setq coding-system
5095 (mm-charset-to-coding-system charset))
5096 (not (eq coding-system 'ascii))))
5097 (mm-decode-coding-string contents coding-system)
5098 (mm-string-to-multibyte contents)))
5099 (goto-char b)))))
5101 (defun gnus-mime-strip-charset-parameters (handle)
5102 "Strip charset parameters from HANDLE."
5103 (if (stringp (car handle))
5104 (mapc #'gnus-mime-strip-charset-parameters (cdr handle))
5105 (let* ((type (mm-handle-type (if (equal (mm-handle-media-type handle)
5106 "message/external-body")
5107 (progn
5108 (unless (mm-handle-cache handle)
5109 (mm-extern-cache-contents handle))
5110 (mm-handle-cache handle))
5111 handle)))
5112 (charset (assq 'charset (cdr type))))
5113 (when charset
5114 (delq charset type)))))
5116 (defun gnus-mime-view-part-as-charset (&optional handle arg)
5117 "Insert the MIME part under point into the current buffer using the
5118 specified charset."
5119 (interactive (list nil current-prefix-arg))
5120 (gnus-article-check-buffer)
5121 (let ((handle (or handle (get-text-property (point) 'gnus-data)))
5122 (fun (get-text-property (point) 'gnus-callback))
5123 (gnus-newsgroup-ignored-charsets 'gnus-all)
5124 gnus-newsgroup-charset form preferred parts)
5125 (when handle
5126 (when (prog1
5127 (and fun
5128 (setq gnus-newsgroup-charset
5129 (or (cdr (assq
5130 arg
5131 gnus-summary-show-article-charset-alist))
5132 (mm-read-coding-system "Charset: "))))
5133 (if (mm-handle-undisplayer handle)
5134 (mm-remove-part handle)))
5135 (gnus-mime-strip-charset-parameters handle)
5136 (when (and (consp (setq form (cdr-safe fun)))
5137 (setq form (ignore-errors
5138 (assq 'gnus-mime-display-alternative form)))
5139 (setq preferred (caddr form))
5140 (progn
5141 (when (eq (car preferred) 'quote)
5142 (setq preferred (cadr preferred)))
5143 (not (equal preferred
5144 (get-text-property (point) 'gnus-data))))
5145 (setq parts (get-text-property (point) 'gnus-part))
5146 (setq parts (cdr (assq parts
5147 gnus-article-mime-handle-alist)))
5148 (equal (mm-handle-media-type parts) "multipart/alternative")
5149 (setq parts (reverse (cdr parts))))
5150 (setcar (cddr form)
5151 (list 'quote (or (cadr (member preferred parts))
5152 (car parts)))))
5153 (funcall fun handle)))))
5155 (defun gnus-mime-view-part-externally (&optional handle)
5156 "View the MIME part under point with an external viewer."
5157 (interactive)
5158 (gnus-article-check-buffer)
5159 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5160 (mm-user-display-methods nil)
5161 (mm-inlined-types nil)
5162 (mail-parse-charset gnus-newsgroup-charset)
5163 (mail-parse-ignored-charsets
5164 (with-current-buffer gnus-summary-buffer
5165 gnus-newsgroup-ignored-charsets))
5166 (type (mm-handle-media-type handle))
5167 (method (mailcap-mime-info type))
5168 (mm-enable-external t))
5169 (if (not (stringp method))
5170 (gnus-mime-view-part-as-type
5171 nil (lambda (types) (stringp (mailcap-mime-info (car types)))))
5172 (when handle
5173 (if (mm-handle-undisplayer handle)
5174 (mm-remove-part handle)
5175 (mm-display-part handle))))))
5177 (defun gnus-mime-view-part-internally (&optional handle)
5178 "View the MIME part under point with an internal viewer.
5179 If no internal viewer is available, use an external viewer."
5180 (interactive)
5181 (gnus-article-check-buffer)
5182 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5183 (mm-inlined-types '(".*"))
5184 (mm-inline-large-images t)
5185 (mail-parse-charset gnus-newsgroup-charset)
5186 (mail-parse-ignored-charsets
5187 (with-current-buffer gnus-summary-buffer
5188 gnus-newsgroup-ignored-charsets))
5189 (inhibit-read-only t))
5190 (if (not (mm-inlinable-p handle))
5191 (gnus-mime-view-part-as-type
5192 nil (lambda (types) (mm-inlinable-p handle (car types))))
5193 (when handle
5194 (if (mm-handle-undisplayer handle)
5195 (mm-remove-part handle)
5196 (mm-display-part handle))))))
5198 (defun gnus-mime-action-on-part (&optional action)
5199 "Do something with the MIME attachment at \(point\)."
5200 (interactive
5201 (list (completing-read "Action: " gnus-mime-action-alist nil t)))
5202 (gnus-article-check-buffer)
5203 (let ((action-pair (assoc action gnus-mime-action-alist)))
5204 (if action-pair
5205 (funcall (cdr action-pair)))))
5207 (defun gnus-article-part-wrapper (n function &optional no-handle interactive)
5208 "Call FUNCTION on MIME part N.
5209 Unless NO-HANDLE, call FUNCTION with N-th MIME handle as it's only argument.
5210 If INTERACTIVE, call FUNCTION interactivly."
5211 (let (window frame)
5212 ;; Check whether the article is displayed.
5213 (unless (and (gnus-buffer-live-p gnus-article-buffer)
5214 (setq window (get-buffer-window gnus-article-buffer t))
5215 (frame-visible-p (setq frame (window-frame window))))
5216 (error "No article is displayed"))
5217 (with-current-buffer gnus-article-buffer
5218 ;; Check whether the article displays the right contents.
5219 (unless (with-current-buffer gnus-summary-buffer
5220 (eq gnus-current-article (gnus-summary-article-number)))
5221 (error "You should select the right article first"))
5222 (if n
5223 (setq n (prefix-numeric-value n))
5224 (let ((pt (point)))
5225 (setq n (or (get-text-property pt 'gnus-part)
5226 (and (not (bobp))
5227 (get-text-property (1- pt) 'gnus-part))
5228 (get-text-property (prog2
5229 (forward-line 1)
5230 (point)
5231 (goto-char pt))
5232 'gnus-part)
5233 (get-text-property
5234 (or (and (setq pt (previous-single-property-change
5235 pt 'gnus-part))
5236 (1- pt))
5237 (next-single-property-change (point) 'gnus-part)
5238 (point))
5239 'gnus-part)
5240 1))))
5241 ;; Check whether the specified part exists.
5242 (when (> n (length gnus-article-mime-handle-alist))
5243 (error "No such part")))
5244 (unless
5245 (progn
5246 ;; To select the window is needed so that the cursor
5247 ;; might be visible on the MIME button.
5248 (select-window (prog1
5249 window
5250 (setq window (selected-window))
5251 ;; Article may be displayed in the other frame.
5252 (gnus-select-frame-set-input-focus
5253 (prog1
5254 frame
5255 (setq frame (selected-frame))))))
5256 (when (gnus-article-goto-part n)
5257 ;; We point the cursor and the arrow at the MIME button
5258 ;; when the `function' prompt the user for something.
5259 (let ((cursor-in-non-selected-windows t)
5260 (overlay-arrow-string "=>")
5261 (overlay-arrow-position (point-marker)))
5262 (unwind-protect
5263 (cond
5264 ((and no-handle interactive)
5265 (call-interactively function))
5266 (no-handle
5267 (funcall function))
5268 (interactive
5269 (call-interactively
5270 function
5271 (cdr (assq n gnus-article-mime-handle-alist))))
5272 (t
5273 (funcall function
5274 (cdr (assq n gnus-article-mime-handle-alist)))))
5275 (set-marker overlay-arrow-position nil)
5276 (unless gnus-auto-select-part
5277 (gnus-select-frame-set-input-focus frame)
5278 (select-window window))))
5279 t))
5280 (if gnus-inhibit-mime-unbuttonizing
5281 ;; This is the default though the program shouldn't reach here.
5282 (error "No such part")
5283 ;; The part which doesn't have the MIME button is selected.
5284 ;; So, we display all the buttons and redo it.
5285 (let ((gnus-inhibit-mime-unbuttonizing t))
5286 (gnus-summary-show-article)
5287 (gnus-article-part-wrapper n function no-handle))))))
5289 (defun gnus-article-pipe-part (n)
5290 "Pipe MIME part N, which is the numerical prefix."
5291 (interactive "P")
5292 (gnus-article-part-wrapper n 'mm-pipe-part))
5294 (defun gnus-article-save-part (n)
5295 "Save MIME part N, which is the numerical prefix."
5296 (interactive "P")
5297 (gnus-article-part-wrapper n 'mm-save-part))
5299 (defun gnus-article-interactively-view-part (n)
5300 "View MIME part N interactively, which is the numerical prefix."
5301 (interactive "P")
5302 (gnus-article-part-wrapper n 'mm-interactively-view-part))
5304 (defun gnus-article-copy-part (n)
5305 "Copy MIME part N, which is the numerical prefix."
5306 (interactive "P")
5307 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
5309 (defun gnus-article-view-part-as-charset (n)
5310 "View MIME part N using a specified charset.
5311 N is the numerical prefix."
5312 (interactive "P")
5313 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
5315 (defun gnus-article-view-part-externally (n)
5316 "View MIME part N externally, which is the numerical prefix."
5317 (interactive "P")
5318 (gnus-article-part-wrapper n 'gnus-mime-view-part-externally))
5320 (defun gnus-article-inline-part (n)
5321 "Inline MIME part N, which is the numerical prefix."
5322 (interactive "P")
5323 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
5325 (defun gnus-article-save-part-and-strip (n)
5326 "Save MIME part N and replace it with an external body.
5327 N is the numerical prefix."
5328 (interactive "P")
5329 (gnus-article-part-wrapper n 'gnus-mime-save-part-and-strip t))
5331 (defun gnus-article-replace-part (n)
5332 "Replace MIME part N with an external body.
5333 N is the numerical prefix."
5334 (interactive "P")
5335 (gnus-article-part-wrapper n 'gnus-mime-replace-part t t))
5337 (defun gnus-article-delete-part (n)
5338 "Delete MIME part N and add some information about the removed part.
5339 N is the numerical prefix."
5340 (interactive "P")
5341 (gnus-article-part-wrapper n 'gnus-mime-delete-part t))
5343 (defun gnus-article-view-part-as-type (n)
5344 "Choose a MIME media type, and view part N as such.
5345 N is the numerical prefix."
5346 (interactive "P")
5347 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-type t))
5349 (defun gnus-article-mime-match-handle-first (condition)
5350 (if condition
5351 (let (n)
5352 (dolist (ihandle gnus-article-mime-handle-alist)
5353 (if (and (cond
5354 ((functionp condition)
5355 (funcall condition (cdr ihandle)))
5356 ((eq condition 'undisplayed)
5357 (not (or (mm-handle-undisplayer (cdr ihandle))
5358 (equal (mm-handle-media-type (cdr ihandle))
5359 "multipart/alternative"))))
5360 ((eq condition 'undisplayed-alternative)
5361 (not (mm-handle-undisplayer (cdr ihandle))))
5362 (t t))
5363 (gnus-article-goto-part (car ihandle))
5364 (or (not n) (< (car ihandle) n)))
5365 (setq n (car ihandle))))
5366 (or n 1))
5367 1))
5369 (defun gnus-article-view-part (&optional n)
5370 "View MIME part N, which is the numerical prefix."
5371 (interactive "P")
5372 (with-current-buffer gnus-article-buffer
5373 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
5374 gnus-article-mime-match-handle-function)))
5375 (when (> n (length gnus-article-mime-handle-alist))
5376 (error "No such part"))
5377 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
5378 (when (gnus-article-goto-part n)
5379 (if (equal (car handle) "multipart/alternative")
5380 (gnus-article-press-button)
5381 (when (eq (gnus-mm-display-part handle) 'internal)
5382 (gnus-set-window-start)))))))
5384 (defsubst gnus-article-mime-total-parts ()
5385 (if (bufferp (car gnus-article-mime-handles))
5386 1 ;; single part
5387 (1- (length gnus-article-mime-handles))))
5389 (defun gnus-mm-display-part (handle)
5390 "Display HANDLE and fix MIME button."
5391 (let ((id (get-text-property (point) 'gnus-part))
5392 (point (point))
5393 (inhibit-read-only t))
5394 (forward-line 1)
5395 (prog1
5396 (let ((window (selected-window))
5397 (mail-parse-charset gnus-newsgroup-charset)
5398 (mail-parse-ignored-charsets
5399 (if (gnus-buffer-live-p gnus-summary-buffer)
5400 (with-current-buffer gnus-summary-buffer
5401 gnus-newsgroup-ignored-charsets)
5402 nil)))
5403 (save-excursion
5404 (unwind-protect
5405 (let ((win (gnus-get-buffer-window (current-buffer) t))
5406 (beg (point)))
5407 (when win
5408 (select-window win))
5409 (goto-char point)
5410 (forward-line)
5411 (if (mm-handle-displayed-p handle)
5412 ;; This will remove the part.
5413 (mm-display-part handle)
5414 (save-restriction
5415 (narrow-to-region (point)
5416 (if (eobp) (point) (1+ (point))))
5417 (mm-display-part handle)
5418 ;; We narrow to the part itself and
5419 ;; then call the treatment functions.
5420 (goto-char (point-min))
5421 (forward-line 1)
5422 (narrow-to-region (point) (point-max))
5423 (gnus-treat-article
5424 nil id
5425 (gnus-article-mime-total-parts)
5426 (mm-handle-media-type handle)))))
5427 (if (window-live-p window)
5428 (select-window window)))))
5429 (goto-char point)
5430 (gnus-delete-line)
5431 (gnus-insert-mime-button
5432 handle id (list (mm-handle-displayed-p handle)))
5433 (goto-char point))))
5435 (defun gnus-article-goto-part (n)
5436 "Go to MIME part N."
5437 (gnus-goto-char (text-property-any (point-min) (point-max) 'gnus-part n)))
5439 (defun gnus-insert-mime-button (handle gnus-tmp-id &optional displayed)
5440 (let ((gnus-tmp-name
5441 (or (mail-content-type-get (mm-handle-type handle) 'name)
5442 (mail-content-type-get (mm-handle-disposition handle) 'filename)
5443 (mail-content-type-get (mm-handle-type handle) 'url)
5444 ""))
5445 (gnus-tmp-type (mm-handle-media-type handle))
5446 (gnus-tmp-description (or (mm-handle-description handle) ""))
5447 (gnus-tmp-dots
5448 (if (if displayed (car displayed)
5449 (mm-handle-displayed-p handle))
5450 "" "..."))
5451 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
5452 (buffer-size)))
5453 gnus-tmp-type-long b e)
5454 (when (string-match ".*/" gnus-tmp-name)
5455 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
5456 (setq gnus-tmp-type-long (concat gnus-tmp-type
5457 (and (not (equal gnus-tmp-name ""))
5458 (concat "; " gnus-tmp-name))))
5459 (unless (equal gnus-tmp-description "")
5460 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
5461 (unless (bolp)
5463 (setq b (point))
5464 (gnus-eval-format
5465 gnus-mime-button-line-format gnus-mime-button-line-format-alist
5466 `(keymap ,gnus-mime-button-map
5467 gnus-callback gnus-mm-display-part
5468 gnus-part ,gnus-tmp-id
5469 article-type annotation
5470 gnus-data ,handle))
5471 (setq e (if (bolp)
5472 ;; Exclude a newline.
5473 (1- (point))
5474 (point)))
5475 (when gnus-article-button-face
5476 (gnus-overlay-put (gnus-make-overlay b e nil t)
5477 'face gnus-article-button-face))
5478 (widget-convert-button
5479 'link b e
5480 :mime-handle handle
5481 :action 'gnus-widget-press-button
5482 :button-keymap gnus-mime-button-map
5483 :help-echo
5484 (lambda (widget/window &optional overlay pos)
5485 ;; Needed to properly clear the message due to a bug in
5486 ;; wid-edit (XEmacs only).
5487 (if (boundp 'help-echo-owns-message)
5488 (setq help-echo-owns-message t))
5489 (format
5490 "%S: %s the MIME part; %S: more options"
5491 (aref gnus-mouse-2 0)
5492 ;; XEmacs will get a single widget arg; Emacs 21 will get
5493 ;; window, overlay, position.
5494 (if (mm-handle-displayed-p
5495 (if overlay
5496 (with-current-buffer (gnus-overlay-buffer overlay)
5497 (widget-get (widget-at (gnus-overlay-start overlay))
5498 :mime-handle))
5499 (widget-get widget/window :mime-handle)))
5500 "hide" "show")
5501 (aref gnus-down-mouse-3 0))))))
5503 (defun gnus-widget-press-button (elems el)
5504 (goto-char (widget-get elems :from))
5505 (gnus-article-press-button))
5507 (defvar gnus-displaying-mime nil)
5509 (defun gnus-display-mime (&optional ihandles)
5510 "Display the MIME parts."
5511 (save-excursion
5512 (save-selected-window
5513 (let ((window (get-buffer-window gnus-article-buffer))
5514 (point (point)))
5515 (when window
5516 (select-window window)
5517 ;; We have to do this since selecting the window
5518 ;; may change the point. So we set the window point.
5519 (set-window-point window point)))
5520 (let ((handles ihandles)
5521 (inhibit-read-only t)
5522 handle)
5523 (cond (handles)
5524 ((setq handles (mm-dissect-buffer nil gnus-article-loose-mime))
5525 (when gnus-article-emulate-mime
5526 (mm-uu-dissect-text-parts handles)))
5527 (gnus-article-emulate-mime
5528 (setq handles (mm-uu-dissect))))
5529 (when (and (not ihandles)
5530 (not gnus-displaying-mime))
5531 ;; Top-level call; we clean up.
5532 (when gnus-article-mime-handles
5533 (mm-destroy-parts gnus-article-mime-handles)
5534 (setq gnus-article-mime-handle-alist nil));; A trick.
5535 (setq gnus-article-mime-handles handles)
5536 ;; We allow users to glean info from the handles.
5537 (when gnus-article-mime-part-function
5538 (gnus-mime-part-function handles)))
5539 (if (and handles
5540 (or (not (stringp (car handles)))
5541 (cdr handles)))
5542 (progn
5543 (when (and (not ihandles)
5544 (not gnus-displaying-mime))
5545 ;; Clean up for mime parts.
5546 (article-goto-body)
5547 (delete-region (point) (point-max)))
5548 (let ((gnus-displaying-mime t))
5549 (gnus-mime-display-part handles)))
5550 (save-restriction
5551 (article-goto-body)
5552 (narrow-to-region (point) (point-max))
5553 (gnus-treat-article nil 1 1)
5554 (widen)))
5555 (unless ihandles
5556 ;; Highlight the headers.
5557 (save-excursion
5558 (save-restriction
5559 (article-goto-body)
5560 (narrow-to-region (point-min) (point))
5561 (gnus-article-save-original-date
5562 (gnus-treat-article 'head)))))))
5563 ;; Cope with broken MIME messages.
5564 (goto-char (point-max))
5565 (unless (bolp)
5568 (defcustom gnus-mime-display-multipart-as-mixed nil
5571 If t, it overrides nil values of
5572 `gnus-mime-display-multipart-alternative-as-mixed' and
5573 `gnus-mime-display-multipart-related-as-mixed'."
5574 :group 'gnus-article-mime
5575 :type 'boolean)
5577 (defcustom gnus-mime-display-multipart-alternative-as-mixed nil
5579 :version "22.1"
5580 :group 'gnus-article-mime
5581 :type 'boolean)
5583 (defcustom gnus-mime-display-multipart-related-as-mixed nil
5587 `mm-discouraged-alternatives'\) images or other material inside a
5589 :version "22.1"
5590 :group 'gnus-article-mime
5591 :type 'boolean)
5593 (defun gnus-mime-display-part (handle)
5594 (cond
5595 ;; Maybe a broken MIME message.
5596 ((null handle))
5597 ;; Single part.
5598 ((not (stringp (car handle)))
5599 (gnus-mime-display-single handle))
5600 ;; User-defined multipart
5601 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
5602 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
5603 handle))
5604 ;; multipart/alternative
5605 ((and (equal (car handle) "multipart/alternative")
5606 (not (or gnus-mime-display-multipart-as-mixed
5607 gnus-mime-display-multipart-alternative-as-mixed)))
5608 (let ((id (1+ (length gnus-article-mime-handle-alist))))
5609 (push (cons id handle) gnus-article-mime-handle-alist)
5610 (gnus-mime-display-alternative (cdr handle) nil nil id)))
5611 ;; multipart/related
5612 ((and (equal (car handle) "multipart/related")
5613 (not (or gnus-mime-display-multipart-as-mixed
5614 gnus-mime-display-multipart-related-as-mixed)))
5615 ;;;!!!We should find the start part, but we just default
5616 ;;;!!!to the first part.
5617 ;;(gnus-mime-display-part (cadr handle))
5618 ;;;!!! Most multipart/related is an HTML message plus images.
5619 ;;;!!! Unfortunately we are unable to let W3 display those
5620 ;;;!!! included images, so we just display it as a mixed multipart.
5621 ;;(gnus-mime-display-mixed (cdr handle))
5622 ;;;!!! No, w3 can display everything just fine.
5623 (gnus-mime-display-part (cadr handle)))
5624 ((equal (car handle) "multipart/signed")
5625 (gnus-add-wash-type 'signed)
5626 (gnus-mime-display-security handle))
5627 ((equal (car handle) "multipart/encrypted")
5628 (gnus-add-wash-type 'encrypted)
5629 (gnus-mime-display-security handle))
5630 ;; Other multiparts are handled like multipart/mixed.
5631 (t
5632 (gnus-mime-display-mixed (cdr handle)))))
5634 (defun gnus-mime-part-function (handles)
5635 (if (stringp (car handles))
5636 (mapcar 'gnus-mime-part-function (cdr handles))
5637 (funcall gnus-article-mime-part-function handles)))
5639 (defun gnus-mime-display-mixed (handles)
5640 (mapcar 'gnus-mime-display-part handles))
5642 (defun gnus-mime-display-single (handle)
5643 (let ((type (mm-handle-media-type handle))
5644 (ignored gnus-ignored-mime-types)
5645 (not-attachment t)
5646 (move nil)
5647 display text)
5648 (catch 'ignored
5649 (progn
5650 (while ignored
5651 (when (string-match (pop ignored) type)
5652 (throw 'ignored nil)))
5653 (if (and (setq not-attachment
5654 (and (not (mm-inline-override-p handle))
5655 (or (not (mm-handle-disposition handle))
5656 (equal (car (mm-handle-disposition handle))
5657 "inline")
5658 (mm-attachment-override-p handle))))
5659 (mm-automatic-display-p handle)
5660 (or (and
5661 (mm-inlinable-p handle)
5662 (mm-inlined-p handle))
5663 (mm-automatic-external-display-p type)))
5664 (setq display t)
5665 (when (equal (mm-handle-media-supertype handle) "text")
5666 (setq text t)))
5667 (let ((id (1+ (length gnus-article-mime-handle-alist)))
5668 beg)
5669 (push (cons id handle) gnus-article-mime-handle-alist)
5670 (when (and display
5671 (equal (mm-handle-media-supertype handle) "message"))
5672 (insert-char
5674 (cond ((not (bolp)) 2)
5676 (t 1))))
5677 (when (or (not display)
5678 (not (gnus-unbuttonized-mime-type-p type)))
5679 (gnus-insert-mime-button
5680 handle id (list (or display (and not-attachment text))))
5681 (gnus-article-insert-newline)
5682 ;; Remember modify the number of forward lines.
5683 (setq move t))
5684 (setq beg (point))
5685 (cond
5686 (display
5687 (when move
5688 (forward-line -1)
5689 (setq beg (point)))
5690 (let ((mail-parse-charset gnus-newsgroup-charset)
5691 (mail-parse-ignored-charsets
5692 (save-excursion (condition-case ()
5693 (set-buffer gnus-summary-buffer)
5694 (error))
5695 gnus-newsgroup-ignored-charsets)))
5696 (mm-display-part handle t))
5697 (goto-char (point-max)))
5698 ((and text not-attachment)
5699 (when move
5700 (forward-line -1)
5701 (setq beg (point)))
5702 (gnus-article-insert-newline)
5703 (mm-insert-inline
5704 handle
5705 (let ((charset (or (mail-content-type-get (mm-handle-type handle)
5706 'charset)
5707 (and (equal type "text/calendar") 'utf-8))))
5708 (cond ((not charset)
5709 (mm-string-as-multibyte (mm-get-part handle)))
5710 ((eq charset 'gnus-decoded)
5711 (with-current-buffer (mm-handle-buffer handle)
5712 (buffer-string)))
5713 (t
5714 (mm-decode-string (mm-get-part handle) charset)))))
5715 (goto-char (point-max))))
5716 ;; Do highlighting.
5717 (save-excursion
5718 (save-restriction
5719 (narrow-to-region beg (point))
5720 (if (eq handle gnus-article-mime-handles)
5721 ;; The format=flowed case.
5722 (gnus-treat-article nil 1 1 (mm-handle-media-type handle))
5723 ;; Don't count signature parts that are never displayed.
5724 ;; The part number should be re-calculated supposing this
5725 ;; might be a message/rfc822 part.
5726 (let (handles)
5727 (dolist (part gnus-article-mime-handles)
5728 (unless (or (stringp part)
5729 (equal (car (mm-handle-type part))
5730 "application/pgp-signature"))
5731 (push part handles)))
5732 (gnus-treat-article
5733 nil (length (memq handle handles)) (length handles)
5734 (mm-handle-media-type handle)))))))))))
5736 (defun gnus-unbuttonized-mime-type-p (type)
5737 "Say whether TYPE is to be unbuttonized."
5738 (unless gnus-inhibit-mime-unbuttonizing
5739 (when (catch 'found
5740 (let ((types gnus-unbuttonized-mime-types))
5741 (while types
5742 (when (string-match (pop types) type)
5743 (throw 'found t)))))
5744 (not (catch 'found
5745 (let ((types gnus-buttonized-mime-types))
5746 (while types
5747 (when (string-match (pop types) type)
5748 (throw 'found t)))))))))
5750 (defun gnus-article-insert-newline ()
5751 "Insert a newline, but mark it as undeletable."
5752 (gnus-put-text-property
5755 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
5756 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
5757 (ihandles handles)
5758 (point (point))
5759 handle (inhibit-read-only t) from props begend not-pref)
5760 (save-window-excursion
5761 (save-restriction
5762 (when ibegend
5763 (narrow-to-region (car ibegend)
5764 (or (cdr ibegend)
5765 (progn
5766 (goto-char (car ibegend))
5767 (forward-line 2)
5768 (point))))
5769 (delete-region (point-min) (point-max))
5770 (mm-remove-parts handles))
5771 (setq begend (list (point-marker)))
5772 ;; Do the toggle.
5773 (unless (setq not-pref (cadr (member preferred ihandles)))
5774 (setq not-pref (car ihandles)))
5775 (when (or ibegend
5776 (not preferred)
5777 (not (gnus-unbuttonized-mime-type-p
5778 "multipart/alternative")))
5779 (gnus-add-text-properties
5780 (setq from (point))
5781 (progn
5782 (insert (format "%d. " id))
5783 (point))
5784 `(gnus-callback
5785 (lambda (handles)
5786 (unless ,(not ibegend)
5787 (setq gnus-article-mime-handle-alist
5788 ',gnus-article-mime-handle-alist))
5789 (gnus-mime-display-alternative
5790 ',ihandles ',not-pref ',begend ,id))
5791 keymap ,gnus-mime-button-map
5792 ,gnus-mouse-face-prop ,gnus-article-mouse-face
5793 face ,gnus-article-button-face
5794 gnus-part ,id
5795 article-type multipart))
5796 (widget-convert-button 'link from (point)
5797 :action 'gnus-widget-press-button
5798 :button-keymap gnus-widget-button-keymap)
5799 ;; Do the handles
5800 (while (setq handle (pop handles))
5801 (gnus-add-text-properties
5802 (setq from (point))
5803 (progn
5804 (insert (format "(%c) %-18s"
5805 (if (equal handle preferred) ?* ? )
5806 (mm-handle-media-type handle)))
5807 (point))
5808 `(gnus-callback
5809 (lambda (handles)
5810 (unless ,(not ibegend)
5811 (setq gnus-article-mime-handle-alist
5812 ',gnus-article-mime-handle-alist))
5813 (gnus-mime-display-alternative
5814 ',ihandles ',handle ',begend ,id))
5815 keymap ,gnus-mime-button-map
5816 ,gnus-mouse-face-prop ,gnus-article-mouse-face
5817 face ,gnus-article-button-face
5818 gnus-part ,id
5819 gnus-data ,handle))
5820 (widget-convert-button 'link from (point)
5821 :action 'gnus-widget-press-button
5822 :button-keymap gnus-widget-button-keymap)
5823 (insert " "))
5825 (when preferred
5826 (if (stringp (car preferred))
5827 (gnus-display-mime preferred)
5828 (let ((mail-parse-charset gnus-newsgroup-charset)
5829 (mail-parse-ignored-charsets
5830 (with-current-buffer gnus-summary-buffer
5831 gnus-newsgroup-ignored-charsets)))
5832 (mm-display-part preferred)
5833 ;; Do highlighting.
5834 (save-excursion
5835 (save-restriction
5836 (narrow-to-region (car begend) (point-max))
5837 (gnus-treat-article
5838 nil (length gnus-article-mime-handle-alist)
5839 (gnus-article-mime-total-parts)
5840 (mm-handle-media-type handle))))))
5841 (goto-char (point-max))
5842 (setcdr begend (point-marker)))))
5843 (when ibegend
5844 (goto-char point))))
5846 (defconst gnus-article-wash-status-strings
5847 (let ((alist '((cite "c" "Possible hidden citation text"
5848 " " "All citation text visible")
5849 (headers "h" "Hidden headers"
5850 " " "All headers visible.")
5851 (pgp "p" "Encrypted or signed message status hidden"
5852 " " "No hidden encryption nor digital signature status")
5853 (signature "s" "Signature has been hidden"
5854 " " "Signature is visible")
5855 (overstrike "o" "Overstrike (^H) characters applied"
5856 " " "No overstrike characters applied")
5857 (emphasis "e" "/*_Emphasis_*/ characters applied"
5858 " " "No /*_emphasis_*/ characters applied")))
5859 result)
5860 (dolist (entry alist result)
5861 (let ((key (nth 0 entry))
5862 (on (copy-sequence (nth 1 entry)))
5863 (on-help (nth 2 entry))
5864 (off (copy-sequence (nth 3 entry)))
5865 (off-help (nth 4 entry)))
5866 (put-text-property 0 1 'help-echo on-help on)
5867 (put-text-property 0 1 'help-echo off-help off)
5868 (push (list key on off) result))))
5869 "Alist of strings describing wash status in the mode line.
5870 Each entry has the form (KEY ON OF), where the KEY is a symbol
5871 representing the particular washing function, ON is the string to use
5872 in the article mode line when the washing function is active, and OFF
5873 is the string to use when it is inactive.")
5875 (defun gnus-article-wash-status-entry (key value)
5876 (let ((entry (assoc key gnus-article-wash-status-strings)))
5877 (if value (nth 1 entry) (nth 2 entry))))
5879 (defun gnus-article-wash-status ()
5880 "Return a string which display status of article washing."
5881 (with-current-buffer gnus-article-buffer
5882 (let ((cite (memq 'cite gnus-article-wash-types))
5883 (headers (memq 'headers gnus-article-wash-types))
5884 (boring (memq 'boring-headers gnus-article-wash-types))
5885 (pgp (memq 'pgp gnus-article-wash-types))
5886 (pem (memq 'pem gnus-article-wash-types))
5887 (signed (memq 'signed gnus-article-wash-types))
5888 (encrypted (memq 'encrypted gnus-article-wash-types))
5889 (signature (memq 'signature gnus-article-wash-types))
5890 (overstrike (memq 'overstrike gnus-article-wash-types))
5891 (emphasis (memq 'emphasis gnus-article-wash-types)))
5892 (concat
5893 (gnus-article-wash-status-entry 'cite cite)
5894 (gnus-article-wash-status-entry 'headers (or headers boring))
5895 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
5896 (gnus-article-wash-status-entry 'signature signature)
5897 (gnus-article-wash-status-entry 'overstrike overstrike)
5898 (gnus-article-wash-status-entry 'emphasis emphasis)))))
5900 (defun gnus-add-wash-type (type)
5901 "Add a washing of TYPE to the current status."
5902 (add-to-list 'gnus-article-wash-types type))
5904 (defun gnus-delete-wash-type (type)
5905 "Add a washing of TYPE to the current status."
5906 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
5908 (defun gnus-add-image (category image)
5909 "Add IMAGE of CATEGORY to the list of displayed images."
5910 (let ((entry (assq category gnus-article-image-alist)))
5911 (unless entry
5912 (setq entry (list category))
5913 (push entry gnus-article-image-alist))
5914 (nconc entry (list image))))
5916 (defun gnus-delete-images (category)
5917 "Delete all images in CATEGORY."
5918 (let ((entry (assq category gnus-article-image-alist)))
5919 (dolist (image (cdr entry))
5920 (gnus-remove-image image category))
5921 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
5922 (gnus-delete-wash-type category)))
5924 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
5926 (defun gnus-article-maybe-hide-headers ()
5927 "Hide unwanted headers if `gnus-have-all-headers' is nil.
5928 Provided for backwards compatibility."
5929 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
5930 (not (with-current-buffer gnus-summary-buffer
5931 gnus-have-all-headers)))
5932 (not gnus-inhibit-hiding))
5933 (gnus-article-hide-headers)))
5935 ;;; Article savers.
5937 (defun gnus-output-to-file (file-name)
5938 "Append the current article to a file named FILE-NAME.
5939 If `gnus-article-save-coding-system' is non-nil, it is used to encode
5940 text and used as the value of the coding cookie which is added to the
5941 top of a file. Otherwise, this function saves a raw article without
5942 the coding cookie."
5943 (let* ((artbuf (current-buffer))
5944 (file-name-coding-system nnmail-pathname-coding-system)
5945 (coding gnus-article-save-coding-system)
5946 (coding-system-for-read (if coding
5947 nil ;; Rely on the coding cookie.
5948 mm-text-coding-system))
5949 (coding-system-for-write (or coding
5950 mm-text-coding-system-for-write
5951 mm-text-coding-system))
5952 (exists (file-exists-p file-name)))
5953 (with-temp-buffer
5954 (when exists
5955 (insert-file-contents file-name)
5956 (goto-char (point-min))
5957 ;; Remove the existing coding cookie.
5959 (delete-region (match-beginning 0) (match-end 0))))
5960 (goto-char (point-max))
5961 (insert-buffer-substring artbuf)
5962 ;; Append newline at end of the buffer as separator, and then
5963 ;; save it to file.
5964 (goto-char (point-max))
5966 (when coding
5967 ;; If the coding system is not suitable to encode the text,
5968 ;; ask a user for a proper one.
5969 (when (fboundp 'select-safe-coding-system)
5970 (setq coding (coding-system-base
5971 (save-window-excursion
5972 (select-safe-coding-system (point-min) (point-max)
5973 coding))))
5974 (setq coding-system-for-write
5975 (or (cdr (assq coding '((mule-utf-8 . utf-8))))
5976 coding)))
5977 (goto-char (point-min))
5978 ;; Add the coding cookie.
5980 coding-system-for-write)))
5981 (if exists
5982 (progn
5983 (write-region (point-min) (point-max) file-name nil 'no-message)
5984 (message "Appended to %s" file-name))
5985 (write-region (point-min) (point-max) file-name))))
5986 t)
5988 (defun gnus-narrow-to-page (&optional arg)
5989 "Narrow the article buffer to a page.
5990 If given a numerical ARG, move forward ARG pages."
5991 (interactive "P")
5992 (setq arg (if arg (prefix-numeric-value arg) 0))
5993 (with-current-buffer gnus-article-buffer
5994 (widen)
5995 ;; Remove any old next/prev buttons.
5996 (when (gnus-visual-p 'page-marker)
5997 (let ((inhibit-read-only t))
5998 (gnus-remove-text-with-property 'gnus-prev)
5999 (gnus-remove-text-with-property 'gnus-next)))
6000 (let (st nd pt)
6001 (when (save-excursion
6002 (cond ((< arg 0)
6003 (if (re-search-backward page-delimiter nil 'move (abs arg))
6004 (prog1
6005 (setq nd (match-beginning 0)
6006 pt nd)
6007 (when (re-search-backward page-delimiter nil t)
6008 (setq st (match-end 0))))
6009 (when (re-search-forward page-delimiter nil t)
6010 (setq nd (match-beginning 0)
6011 pt (point-min)))))
6012 ((> arg 0)
6013 (if (re-search-forward page-delimiter nil 'move arg)
6014 (prog1
6015 (setq st (match-end 0)
6016 pt st)
6017 (when (re-search-forward page-delimiter nil t)
6018 (setq nd (match-beginning 0))))
6019 (when (re-search-backward page-delimiter nil t)
6020 (setq st (match-end 0)
6021 pt (point-max)))))
6022 (t
6023 (when (re-search-backward page-delimiter nil t)
6024 (goto-char (setq st (match-end 0))))
6025 (when (re-search-forward page-delimiter nil t)
6026 (setq nd (match-beginning 0)))
6027 (or st nd))))
6028 (setq gnus-page-broken t)
6029 (when pt (goto-char pt))
6030 (narrow-to-region (or st (point-min)) (or nd (point-max)))
6031 (when (gnus-visual-p 'page-marker)
6032 (save-excursion
6033 (when nd
6034 (goto-char nd)
6035 (gnus-insert-next-page-button))
6036 (when st
6037 (goto-char st)
6038 (gnus-insert-prev-page-button))))))))
6040 ;; Article mode commands
6042 (defun gnus-article-goto-next-page ()
6043 "Show the next page of the article."
6044 (interactive)
6045 (when (gnus-article-next-page)
6046 (goto-char (point-min))
6047 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
6050 (defun gnus-article-goto-prev-page ()
6051 "Show the previous page of the article."
6052 (interactive)
6053 (if (save-restriction (widen) (bobp)) ;; Real beginning-of-buffer?
6054 (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
6055 (gnus-article-prev-page nil)))
6057 ;; This is cleaner but currently breaks `gnus-pick-mode':
6058 ;;
6059 ;; (defun gnus-article-goto-next-page ()
6060 ;; "Show the next page of the article."
6061 ;; (interactive)
6062 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6063 ;; (gnus-summary-next-page)))
6064 ;;
6065 ;; (defun gnus-article-goto-prev-page ()
6066 ;; "Show the next page of the article."
6067 ;; (interactive)
6068 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6069 ;; (gnus-summary-prev-page)))
6071 (defun gnus-article-next-page (&optional lines)
6072 "Show the next page of the current article.
6073 If end of article, return non-nil. Otherwise return nil.
6074 Argument LINES specifies lines to be scrolled up."
6075 (interactive "p")
6076 (move-to-window-line -1)
6077 (if (and (not (and gnus-article-over-scroll
6078 (> (count-lines (window-start) (point-max))
6079 (+ (or lines (1- (window-height)))
6080 (or (and (boundp 'scroll-margin)
6081 (symbol-value 'scroll-margin))
6082 0)))))
6083 (save-excursion
6084 (end-of-line)
6085 (and (pos-visible-in-window-p) ;Not continuation line.
6086 (>= (1+ (point)) (point-max))))) ;Allow for trailing newline.
6087 ;; Nothing in this page.
6088 (if (or (not gnus-page-broken)
6089 (save-excursion
6090 (save-restriction
6091 (widen)
6092 (forward-line)
6093 (eobp)))) ;Real end-of-buffer?
6094 (progn
6095 (when gnus-article-over-scroll
6096 (gnus-article-next-page-1 lines))
6097 t) ;Nothing more.
6098 (gnus-narrow-to-page 1) ;Go to next page.
6099 nil)
6100 ;; More in this page.
6101 (gnus-article-next-page-1 lines)
6102 nil))
6104 (defmacro gnus-article-beginning-of-window ()
6105 "Move point to the beginning of the window.
6106 In Emacs, the point is placed at the line number which `scroll-margin'
6107 specifies."
6108 (if (featurep 'xemacs)
6109 '(move-to-window-line 0)
6110 '(move-to-window-line
6111 (min (max 0 scroll-margin)
6112 (max 1 (- (window-height)
6113 (if mode-line-format 1 0)
6114 (if header-line-format 1 0)))))))
6116 (defun gnus-article-next-page-1 (lines)
6117 (when (and (not (featurep 'xemacs))
6118 (numberp lines)
6119 (> lines 0)
6120 (numberp (symbol-value 'scroll-margin))
6121 (> (symbol-value 'scroll-margin) 0))
6122 ;; Protect against the bug that Emacs 21.x hangs up when scrolling up for
6123 ;; too many number of lines if `scroll-margin' is set as two or greater.
6124 (setq lines (min lines
6125 (max 0 (- (count-lines (window-start) (point-max))
6126 (symbol-value 'scroll-margin))))))
6127 (condition-case ()
6128 (let ((scroll-in-place nil))
6129 (scroll-up lines))
6130 (end-of-buffer
6131 ;; Long lines may cause an end-of-buffer error.
6132 (goto-char (point-max))))
6133 (gnus-article-beginning-of-window))
6135 (defun gnus-article-prev-page (&optional lines)
6136 "Show previous page of current article.
6137 Argument LINES specifies lines to be scrolled down."
6138 (interactive "p")
6139 (move-to-window-line 0)
6140 (if (and gnus-page-broken
6141 (bobp)
6142 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
6143 (progn
6144 (gnus-narrow-to-page -1) ;Go to previous page.
6145 (goto-char (point-max))
6146 (recenter (if gnus-article-over-scroll
6147 (if lines
6148 (max (+ lines (or (and (boundp 'scroll-margin)
6149 (symbol-value 'scroll-margin))
6150 0))
6151 3)
6152 (- (window-height) 2))
6153 -1)))
6154 (prog1
6155 (condition-case ()
6156 (let ((scroll-in-place nil))
6157 (scroll-down lines))
6158 (beginning-of-buffer
6159 (goto-char (point-min))))
6160 (gnus-article-beginning-of-window))))
6162 (defun gnus-article-only-boring-p ()
6163 "Decide whether there is only boring text remaining in the article.
6165 not have a face in `gnus-article-boring-faces'."
6166 (when (and gnus-article-skip-boring
6167 (boundp 'gnus-article-boring-faces)
6168 (symbol-value 'gnus-article-boring-faces))
6169 (save-excursion
6170 (let ((inhibit-point-motion-hooks t))
6171 (catch 'only-boring
6173 (forward-char -1)
6174 (when (not (gnus-intersection
6175 (gnus-faces-at (point))
6176 (symbol-value 'gnus-article-boring-faces)))
6177 (throw 'only-boring nil)))
6178 (throw 'only-boring t))))))
6180 (defun gnus-article-refer-article ()
6181 "Read article specified by message-id around point."
6182 (interactive)
6183 (save-excursion
6187 (let ((msg-id (concat "<" (match-string 0) ">")))
6188 (set-buffer gnus-summary-buffer)
6189 (gnus-summary-refer-article msg-id))
6190 (error "No references around point"))))
6192 (defun gnus-article-show-summary ()
6193 "Reconfigure windows to show summary buffer."
6194 (interactive)
6195 (if (not (gnus-buffer-live-p gnus-summary-buffer))
6196 (error "There is no summary buffer for this article buffer")
6197 (gnus-article-set-globals)
6198 (gnus-configure-windows 'article)
6199 (gnus-summary-goto-subject gnus-current-article)
6200 (gnus-summary-position-point)))
6202 (defun gnus-article-describe-briefly ()
6203 "Describe article mode commands briefly."
6204 (interactive)
6205 (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")))
6207 (defun gnus-article-summary-command ()
6208 "Execute the last keystroke in the summary buffer."
6209 (interactive)
6210 (let ((obuf (current-buffer))
6211 (owin (current-window-configuration))
6212 func)
6213 (switch-to-buffer gnus-article-current-summary 'norecord)
6214 (setq func (lookup-key (current-local-map) (this-command-keys)))
6215 (call-interactively func)
6216 (set-buffer obuf)
6217 (set-window-configuration owin)
6218 (set-window-point (get-buffer-window (current-buffer)) (point))))
6220 (defun gnus-article-summary-command-nosave ()
6221 "Execute the last keystroke in the summary buffer."
6222 (interactive)
6223 (let (func)
6224 (pop-to-buffer gnus-article-current-summary)
6225 (setq func (lookup-key (current-local-map) (this-command-keys)))
6226 (call-interactively func)))
6228 (defun gnus-article-check-buffer ()
6229 "Beep if not in an article buffer."
6230 (unless (equal major-mode 'gnus-article-mode)
6231 (error "Command invoked outside of a Gnus article buffer")))
6233 (defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
6234 "Read a summary buffer key sequence and execute it from the article buffer."
6235 (interactive "P")
6236 (gnus-article-check-buffer)
6237 (let ((nosaves
6238 '("q" "Q" "c" "r" "\C-c\C-f" "m" "a" "f"
6239 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
6240 "=" "^" "\M-^" "|"))
6241 (nosave-but-article
6243 "An" "Ap" [?A (meta return)] [?A delete]))
6244 (nosave-in-article
6245 '("AS" "\C-d"))
6246 (up-to-top
6247 '("n" "Gn" "p" "Gp"))
6248 keys new-sum-point)
6249 (with-current-buffer gnus-article-current-summary
6250 (let (gnus-pick-mode)
6251 (setq unread-command-events (nconc unread-command-events
6252 (list (or key last-command-event)))
6253 keys (if (featurep 'xemacs)
6254 (events-to-keys (read-key-sequence nil t))
6255 (read-key-sequence nil t)))))
6257 (message "")
6259 (cond
6260 ((eq (aref keys (1- (length keys))) ?\C-h)
6261 (gnus-article-describe-bindings (substring keys 0 -1)))
6262 ((or (member keys nosaves)
6263 (member keys nosave-but-article)
6264 (member keys nosave-in-article))
6265 (let (func)
6266 (save-window-excursion
6267 (pop-to-buffer gnus-article-current-summary)
6268 ;; We disable the pick minor mode commands.
6269 (let (gnus-pick-mode)
6270 (setq func (lookup-key (current-local-map) keys))))
6271 (if (or (not func)
6272 (numberp func))
6273 (ding)
6274 (unless (member keys nosave-in-article)
6275 (set-buffer gnus-article-current-summary))
6276 (call-interactively func)
6277 (setq new-sum-point (point)))
6278 (when (member keys nosave-but-article)
6279 (pop-to-buffer gnus-article-buffer))))
6280 (t
6281 ;; These commands should restore window configuration.
6282 (let ((obuf (current-buffer))
6283 (owin (current-window-configuration))
6284 win func in-buffer selected new-sum-start new-sum-hscroll err)
6285 (cond (not-restore-window
6286 (pop-to-buffer gnus-article-current-summary)
6287 (setq win (selected-window)))
6288 ((setq win (get-buffer-window gnus-article-current-summary))
6289 (select-window win))
6290 (t
6291 (let ((summary-buffer gnus-article-current-summary))
6292 (gnus-configure-windows 'article)
6293 (unless (setq win (get-buffer-window summary-buffer 'visible))
6294 (let ((gnus-buffer-configuration
6295 '(article ((vertical 1.0
6296 (summary 0.25 point)
6297 (article 1.0))))))
6298 (gnus-configure-windows 'article))
6299 (setq win (get-buffer-window summary-buffer 'visible)))
6300 (gnus-select-frame-set-input-focus (window-frame win))
6301 (select-window win))))
6302 (setq in-buffer (current-buffer))
6303 ;; We disable the pick minor mode commands.
6304 (if (and (setq func (let (gnus-pick-mode)
6305 (lookup-key (current-local-map) keys)))
6306 (functionp func)
6307 (condition-case code
6308 (progn
6309 (call-interactively func)
6310 t)
6311 (error
6312 (setq err code)
6313 nil)))
6314 (progn
6315 (when (eq win (selected-window))
6316 (setq new-sum-point (point)
6317 new-sum-start (window-start win)
6318 new-sum-hscroll (window-hscroll win)))
6319 (when (or (eq in-buffer (current-buffer))
6320 (when (eq obuf (current-buffer))
6321 (set-buffer in-buffer)
6322 t))
6323 (setq selected (gnus-summary-select-article))
6324 (set-buffer obuf)
6325 (unless not-restore-window
6326 (set-window-configuration owin))
6327 (when (and (eq selected 'old)
6328 new-sum-point)
6329 (set-window-start (get-buffer-window (current-buffer))
6330 1)
6331 (set-window-point (get-buffer-window (current-buffer))
6332 (if (article-goto-body)
6333 (1- (point))
6334 (point))))
6335 (when (and (not not-restore-window)
6336 new-sum-point
6337 (with-current-buffer (window-buffer win)
6338 (eq major-mode 'gnus-summary-mode)))
6339 (set-window-point win new-sum-point)
6340 (set-window-start win new-sum-start)
6341 (set-window-hscroll win new-sum-hscroll))))
6342 (set-window-configuration owin)
6343 (if err
6344 (signal (car err) (cdr err))
6345 (ding))))))))
6347 (defun gnus-article-read-summary-send-keys ()
6348 (interactive)
6349 (let ((unread-command-events (list (gnus-character-to-event ?S))))
6350 (gnus-article-read-summary-keys)))
6352 (defun gnus-article-describe-key (key)
6353 "Display documentation of the function invoked by KEY.
6354 KEY is a string or a vector."
6355 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6356 (read-key-sequence "Describe key: "))))
6357 (gnus-article-check-buffer)
6358 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6359 gnus-article-read-summary-send-keys))
6360 (with-current-buffer gnus-article-current-summary
6361 (setq unread-command-events
6362 (if (featurep 'xemacs)
6363 (append key nil)
6364 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6365 (list 'meta (- x 128))
6366 x))
6367 key)))
6368 (let ((cursor-in-echo-area t)
6369 gnus-pick-mode)
6370 (describe-key (read-key-sequence nil t))))
6371 (describe-key key)))
6373 (defun gnus-article-describe-key-briefly (key &optional insert)
6374 "Display documentation of the function invoked by KEY.
6375 KEY is a string or a vector."
6376 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6377 (read-key-sequence "Describe key: "))
6378 current-prefix-arg))
6379 (gnus-article-check-buffer)
6380 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6381 gnus-article-read-summary-send-keys))
6382 (with-current-buffer gnus-article-current-summary
6383 (setq unread-command-events
6384 (if (featurep 'xemacs)
6385 (append key nil)
6386 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6387 (list 'meta (- x 128))
6388 x))
6389 key)))
6390 (let ((cursor-in-echo-area t)
6391 gnus-pick-mode)
6392 (describe-key-briefly (read-key-sequence nil t) insert)))
6393 (describe-key-briefly key insert)))
6395 ;;`gnus-agent-mode' in gnus-agent.el will define it.
6396 (defvar gnus-agent-summary-mode)
6397 (defvar gnus-draft-mode)
6399 (defun gnus-article-describe-bindings (&optional prefix)
6400 "Show a list of all defined keys, and their definitions.
6401 The optional argument PREFIX, if non-nil, should be a key sequence;
6402 then we display only bindings that start with that prefix."
6403 (interactive)
6404 (gnus-article-check-buffer)
6405 (let ((keymap (copy-keymap gnus-article-mode-map))
6406 (map (copy-keymap gnus-article-send-map))
6407 (sumkeys (where-is-internal 'gnus-article-read-summary-keys))
6408 agent draft)
6409 (define-key keymap "S" map)
6410 (define-key map [t] nil)
6411 (with-current-buffer gnus-article-current-summary
6412 (set-keymap-parent map (key-binding "S"))
6413 (let (key def gnus-pick-mode)
6414 (while sumkeys
6415 (setq key (pop sumkeys))
6416 (cond ((and (vectorp key) (= (length key) 1)
6417 (consp (setq def (aref key 0)))
6418 (numberp (car def)) (numberp (cdr def)))
6419 (when (< (max (car def) (cdr def)) 128)
6420 (setq sumkeys
6421 (append (mapcar
6422 #'vector
6423 (nreverse (gnus-uncompress-range def)))
6424 sumkeys))))
6425 ((setq def (key-binding key))
6426 (unless (eq def 'undefined)
6427 (define-key keymap key def))))))
6428 (when (boundp 'gnus-agent-summary-mode)
6429 (setq agent gnus-agent-summary-mode))
6430 (when (boundp 'gnus-draft-mode)
6431 (setq draft gnus-draft-mode)))
6432 (with-temp-buffer
6433 (use-local-map keymap)
6434 (set (make-local-variable 'gnus-agent-summary-mode) agent)
6435 (set (make-local-variable 'gnus-draft-mode) draft)
6436 (describe-bindings prefix))
6437 (let ((item `((lambda (prefix)
6438 (with-current-buffer ,(current-buffer)
6439 (gnus-article-describe-bindings prefix)))
6440 ,prefix)))
6441 (with-current-buffer (if (fboundp 'help-buffer)
6442 (let (help-xref-following) (help-buffer))
6443 "*Help*") ;; Emacs 21
6444 (setq help-xref-stack-item item)))))
6446 (defun gnus-article-reply-with-original (&optional wide)
6447 "Start composing a reply mail to the current message.
6448 The text in the region will be yanked. If the region isn't active,
6449 the entire article will be yanked."
6450 (interactive)
6451 (let ((article (cdr gnus-article-current))
6452 contents)
6453 (if (not (gnus-region-active-p))
6454 (with-current-buffer gnus-summary-buffer
6455 (gnus-summary-reply (list (list article)) wide))
6456 (setq contents (buffer-substring (point) (mark t)))
6457 ;; Deactivate active regions.
6458 (when (and (boundp 'transient-mark-mode)
6459 transient-mark-mode)
6460 (setq mark-active nil))
6461 (with-current-buffer gnus-summary-buffer
6462 (gnus-summary-reply
6463 (list (list article contents)) wide)))))
6465 (defun gnus-article-wide-reply-with-original ()
6466 "Start composing a wide reply mail to the current message.
6467 The text in the region will be yanked. If the region isn't active,
6468 the entire article will be yanked."
6469 (interactive)
6470 (gnus-article-reply-with-original t))
6472 (defun gnus-article-followup-with-original ()
6473 "Compose a followup to the current article.
6474 The text in the region will be yanked. If the region isn't active,
6475 the entire article will be yanked."
6476 (interactive)
6477 (let ((article (cdr gnus-article-current))
6478 contents)
6479 (if (not (gnus-region-active-p))
6480 (with-current-buffer gnus-summary-buffer
6481 (gnus-summary-followup (list (list article))))
6482 (setq contents (buffer-substring (point) (mark t)))
6483 ;; Deactivate active regions.
6484 (when (and (boundp 'transient-mark-mode)
6485 transient-mark-mode)
6486 (setq mark-active nil))
6487 (with-current-buffer gnus-summary-buffer
6488 (gnus-summary-followup
6489 (list (list article contents)))))))
6491 (defun gnus-article-hide (&optional arg force)
6492 "Hide all the gruft in the current article.
6493 This means that signatures, cited text and (some) headers will be
6494 hidden.
6495 If given a prefix, show the hidden text instead."
6496 (interactive (append (gnus-article-hidden-arg) (list 'force)))
6497 (gnus-article-hide-headers arg)
6498 (gnus-article-hide-list-identifiers arg)
6499 (gnus-article-hide-citation-maybe arg force)
6500 (gnus-article-hide-signature arg))
6502 (defun gnus-article-maybe-highlight ()
6503 "Do some article highlighting if article highlighting is requested."
6504 (when (gnus-visual-p 'article-highlight 'highlight)
6505 (gnus-article-highlight-some)))
6507 (defun gnus-check-group-server ()
6508 ;; Make sure the connection to the server is alive.
6509 (unless (gnus-server-opened
6510 (gnus-find-method-for-group gnus-newsgroup-name))
6511 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
6512 (gnus-request-group gnus-newsgroup-name t)))
6514 (eval-when-compile
6515 (autoload 'nneething-get-file-name "nneething"))
6517 (defun gnus-request-article-this-buffer (article group)
6518 "Get an article and insert it into this buffer."
6519 (let (do-update-line sparse-header)
6520 (prog1
6521 (save-excursion
6522 (erase-buffer)
6523 (gnus-kill-all-overlays)
6524 (setq group (or group gnus-newsgroup-name))
6526 ;; Using `gnus-request-article' directly will insert the article into
6527 ;; `nntp-server-buffer' - so we'll save some time by not having to
6528 ;; copy it from the server buffer into the article buffer.
6530 ;; We only request an article by message-id when we do not have the
6531 ;; headers for it, so we'll have to get those.
6532 (when (stringp article)
6533 (gnus-read-header article))
6535 ;; If the article number is negative, that means that this article
6536 ;; doesn't belong in this newsgroup (possibly), so we find its
6537 ;; message-id and request it by id instead of number.
6538 (when (and (numberp article)
6539 gnus-summary-buffer
6540 (get-buffer gnus-summary-buffer)
6541 (gnus-buffer-exists-p gnus-summary-buffer))
6542 (with-current-buffer gnus-summary-buffer
6543 (let ((header (gnus-summary-article-header article)))
6544 (when (< article 0)
6545 (cond
6546 ((memq article gnus-newsgroup-sparse)
6547 ;; This is a sparse gap article.
6548 (setq do-update-line article)
6549 (setq article (mail-header-id header))
6550 (setq sparse-header (gnus-read-header article))
6551 (setq gnus-newsgroup-sparse
6552 (delq article gnus-newsgroup-sparse)))
6553 ((vectorp header)
6554 ;; It's a real article.
6555 (setq article (mail-header-id header)))
6556 (t
6557 ;; It is an extracted pseudo-article.
6558 (setq article 'pseudo)
6559 (gnus-request-pseudo-article header))))
6561 (let ((method (gnus-find-method-for-group
6562 gnus-newsgroup-name)))
6563 (when (and (eq (car method) 'nneething)
6564 (vectorp header))
6565 (let ((dir (nneething-get-file-name
6566 (mail-header-id header))))
6567 (when (and (stringp dir)
6568 (file-directory-p dir))
6569 (setq article 'nneething)
6570 (gnus-group-enter-directory dir))))))))
6572 (cond
6573 ;; Refuse to select canceled articles.
6574 ((and (numberp article)
6575 gnus-summary-buffer
6576 (get-buffer gnus-summary-buffer)
6577 (gnus-buffer-exists-p gnus-summary-buffer)
6578 (eq (cdr (with-current-buffer gnus-summary-buffer
6579 (assq article gnus-newsgroup-reads)))
6580 gnus-canceled-mark))
6581 nil)
6582 ;; We first check `gnus-original-article-buffer'.
6583 ((and (get-buffer gnus-original-article-buffer)
6584 (numberp article)
6585 (with-current-buffer gnus-original-article-buffer
6586 (and (equal (car gnus-original-article) group)
6587 (eq (cdr gnus-original-article) article))))
6588 ;; `insert-buffer-substring' would incorrectly use the
6589 ;; equivalent of string-make-multibyte which amount to decoding
6590 ;; with locale-coding-system, causing failure of
6591 ;; subsequent decoding.
6592 (insert (mm-string-to-multibyte
6593 (with-current-buffer gnus-original-article-buffer
6594 (buffer-substring (point-min) (point-max)))))
6595 'article)
6596 ;; Check the backlog.
6597 ((and gnus-keep-backlog
6598 (gnus-backlog-request-article group article (current-buffer)))
6599 'article)
6600 ;; Check asynchronous pre-fetch.
6601 ((gnus-async-request-fetched-article group article (current-buffer))
6602 (gnus-async-prefetch-next group article gnus-summary-buffer)
6603 (when (and (numberp article) gnus-keep-backlog)
6604 (gnus-backlog-enter-article group article (current-buffer)))
6605 'article)
6606 ;; Check the cache.
6607 ((and gnus-use-cache
6608 (numberp article)
6609 (gnus-cache-request-article article group))
6610 'article)
6611 ;; Check the agent cache.
6612 ((gnus-agent-request-article article group)
6613 'article)
6614 ;; Get the article and put into the article buffer.
6615 ((or (stringp article)
6616 (numberp article))
6617 (let ((gnus-override-method gnus-override-method)
6618 (methods (and (stringp article)
6619 gnus-refer-article-method))
6620 (backend (car (gnus-find-method-for-group
6621 gnus-newsgroup-name)))
6622 result
6623 (inhibit-read-only t))
6624 (if (or (not (listp methods))
6625 (and (symbolp (car methods))
6626 (assq (car methods) nnoo-definition-alist)))
6627 (setq methods (list methods)))
6628 (when (and (null gnus-override-method)
6629 methods)
6630 (setq gnus-override-method (pop methods)))
6631 (while (not result)
6632 (when (eq gnus-override-method 'current)
6633 (setq gnus-override-method
6634 (with-current-buffer gnus-summary-buffer
6635 gnus-current-select-method)))
6636 (erase-buffer)
6637 (gnus-kill-all-overlays)
6638 (let ((gnus-newsgroup-name group))
6639 (gnus-check-group-server))
6640 (cond
6641 ((gnus-request-article article group (current-buffer))
6642 (when (numberp article)
6643 (gnus-async-prefetch-next group article
6644 gnus-summary-buffer)
6645 (when gnus-keep-backlog
6646 (gnus-backlog-enter-article
6647 group article (current-buffer))))
6648 (setq result 'article))
6649 (methods
6650 (setq gnus-override-method (pop methods)))
6651 ((not (string-match "^400 "
6652 (nnheader-get-report backend)))
6653 ;; If we get 400 server disconnect, reconnect and
6654 ;; retry; otherwise, assume the article has expired.
6655 (setq result 'done))))
6656 (and (eq result 'article) 'article)))
6657 ;; It was a pseudo.
6658 (t article)))
6660 ;; Associate this article with the current summary buffer.
6661 (setq gnus-article-current-summary gnus-summary-buffer)
6663 ;; Take the article from the original article buffer
6664 ;; and place it in the buffer it's supposed to be in.
6665 (when (and (get-buffer gnus-article-buffer)
6666 (equal (buffer-name (current-buffer))
6667 (buffer-name (get-buffer gnus-article-buffer))))
6668 (save-excursion
6669 (if (get-buffer gnus-original-article-buffer)
6670 (set-buffer gnus-original-article-buffer)
6671 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
6672 (buffer-disable-undo)
6673 (setq major-mode 'gnus-original-article-mode)
6674 (setq buffer-read-only t))
6675 (let ((inhibit-read-only t))
6676 (erase-buffer)
6677 (insert-buffer-substring gnus-article-buffer))
6678 (setq gnus-original-article (cons group article)))
6680 ;; Decode charsets.
6681 (run-hooks 'gnus-article-decode-hook)
6682 ;; Mark article as decoded or not.
6683 (setq gnus-article-decoded-p gnus-article-decode-hook))
6685 ;; Update sparse articles.
6686 (when (and do-update-line
6687 (or (numberp article)
6688 (stringp article)))
6689 (let ((buf (current-buffer)))
6690 (set-buffer gnus-summary-buffer)
6691 (gnus-summary-update-article do-update-line sparse-header)
6692 (gnus-summary-goto-subject do-update-line nil t)
6693 (set-window-point (gnus-get-buffer-window (current-buffer) t)
6694 (point))
6695 (set-buffer buf))))))
6697 ;;;
6698 ;;; Article editing
6699 ;;;
6701 (defcustom gnus-article-edit-mode-hook nil
6702 "Hook run in article edit mode buffers."
6703 :group 'gnus-article-various
6704 :type 'hook)
6706 (defvar gnus-article-edit-done-function nil)
6708 (defvar gnus-article-edit-mode-map nil)
6710 ;; Should we be using derived.el for this?
6711 (unless gnus-article-edit-mode-map
6712 (setq gnus-article-edit-mode-map (make-keymap))
6713 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
6715 (gnus-define-keys gnus-article-edit-mode-map
6716 "\C-c?" describe-mode
6717 "\C-c\C-c" gnus-article-edit-done
6718 "\C-c\C-k" gnus-article-edit-exit
6719 "\C-c\C-f\C-t" message-goto-to
6720 "\C-c\C-f\C-o" message-goto-from
6721 "\C-c\C-f\C-b" message-goto-bcc
6722 ;;"\C-c\C-f\C-w" message-goto-fcc
6723 "\C-c\C-f\C-c" message-goto-cc
6724 "\C-c\C-f\C-s" message-goto-subject
6725 "\C-c\C-f\C-r" message-goto-reply-to
6726 "\C-c\C-f\C-n" message-goto-newsgroups
6727 "\C-c\C-f\C-d" message-goto-distribution
6728 "\C-c\C-f\C-f" message-goto-followup-to
6729 "\C-c\C-f\C-m" message-goto-mail-followup-to
6730 "\C-c\C-f\C-k" message-goto-keywords
6731 "\C-c\C-f\C-u" message-goto-summary
6732 "\C-c\C-f\C-i" message-insert-or-toggle-importance
6733 "\C-c\C-f\C-a" message-generate-unsubscribed-mail-followup-to
6734 "\C-c\C-b" message-goto-body
6735 "\C-c\C-i" message-goto-signature
6737 "\C-c\C-t" message-insert-to
6738 "\C-c\C-n" message-insert-newsgroups
6739 "\C-c\C-o" message-sort-headers
6740 "\C-c\C-e" message-elide-region
6741 "\C-c\C-v" message-delete-not-region
6742 "\C-c\C-z" message-kill-to-signature
6744 "\C-c\C-a" mml-attach-file
6745 "\C-a" message-beginning-of-line
6747 "\M-;" comment-region)
6749 (gnus-define-keys (gnus-article-edit-wash-map
6750 "\C-c\C-w" gnus-article-edit-mode-map)
6751 "f" gnus-article-edit-full-stops))
6753 (easy-menu-define
6754 gnus-article-edit-mode-field-menu gnus-article-edit-mode-map ""
6755 '("Field"
6756 ["Fetch To" message-insert-to t]
6757 ["Fetch Newsgroups" message-insert-newsgroups t]
6758 "----"
6759 ["To" message-goto-to t]
6760 ["From" message-goto-from t]
6761 ["Subject" message-goto-subject t]
6762 ["Cc" message-goto-cc t]
6763 ["Reply-To" message-goto-reply-to t]
6764 ["Summary" message-goto-summary t]
6765 ["Keywords" message-goto-keywords t]
6766 ["Newsgroups" message-goto-newsgroups t]
6767 ["Followup-To" message-goto-followup-to t]
6768 ["Mail-Followup-To" message-goto-mail-followup-to t]
6769 ["Distribution" message-goto-distribution t]
6770 ["Body" message-goto-body t]
6771 ["Signature" message-goto-signature t]))
6773 (define-derived-mode gnus-article-edit-mode message-mode "Article Edit"
6774 "Major mode for editing articles.
6775 This is an extended text-mode.
6778 (make-local-variable 'gnus-article-edit-done-function)
6779 (make-local-variable 'gnus-prev-winconf)
6780 (set (make-local-variable 'font-lock-defaults)
6781 '(message-font-lock-keywords t))
6782 (set (make-local-variable 'mail-header-separator) "")
6783 (set (make-local-variable 'gnus-article-edit-mode) t)
6784 (easy-menu-add message-mode-field-menu message-mode-map)
6785 (mml-mode)
6786 (setq buffer-read-only nil)
6787 (buffer-enable-undo)
6788 (widen))
6790 (defun gnus-article-edit (&optional force)
6791 "Edit the current article.
6792 This will have permanent effect only in mail groups.
6793 If FORCE is non-nil, allow editing of articles even in read-only
6794 groups."
6795 (interactive "P")
6796 (when (and (not force)
6797 (gnus-group-read-only-p))
6798 (error "The current newsgroup does not support article editing"))
6799 (gnus-article-date-original)
6800 (gnus-article-edit-article
6801 'ignore
6802 `(lambda (no-highlight)
6803 'ignore
6804 (gnus-summary-edit-article-done
6805 ,(or (mail-header-references gnus-current-headers) "")
6806 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
6808 (defun gnus-article-edit-article (start-func exit-func &optional quiet)
6809 "Start editing the contents of the current article buffer."
6810 (let ((winconf (current-window-configuration)))
6811 (set-buffer gnus-article-buffer)
6812 (let ((message-auto-save-directory
6813 ;; Don't associate the article buffer with a draft file.
6814 nil))
6815 (gnus-article-edit-mode))
6816 (funcall start-func)
6817 (set-buffer-modified-p nil)
6818 (gnus-configure-windows 'edit-article)
6819 (setq gnus-article-edit-done-function exit-func)
6820 (setq gnus-prev-winconf winconf)
6821 (unless quiet
6822 (gnus-message 6 "C-c C-c to end edits"))))
6824 (defun gnus-article-edit-done (&optional arg)
6825 "Update the article edits and exit."
6826 (interactive "P")
6827 (let ((func gnus-article-edit-done-function)
6828 (buf (current-buffer))
6829 (start (window-start))
6830 (p (point))
6831 (winconf gnus-prev-winconf))
6832 (widen) ;; Widen it in case that users narrowed the buffer.
6833 (funcall func arg)
6834 (set-buffer buf)
6835 ;; The cache and backlog have to be flushed somewhat.
6836 (when gnus-keep-backlog
6837 (gnus-backlog-remove-article
6838 (car gnus-article-current) (cdr gnus-article-current)))
6839 ;; Flush original article as well.
6840 (when (get-buffer gnus-original-article-buffer)
6841 (with-current-buffer gnus-original-article-buffer
6842 (setq gnus-original-article nil)))
6843 (when gnus-use-cache
6844 (gnus-cache-update-article
6845 (car gnus-article-current) (cdr gnus-article-current)))
6846 ;; We remove all text props from the article buffer.
6847 (kill-all-local-variables)
6848 (set-text-properties (point-min) (point-max) nil)
6849 (gnus-article-mode)
6850 (set-window-configuration winconf)
6851 (set-buffer buf)
6852 (set-window-start (get-buffer-window buf) start)
6853 (set-window-point (get-buffer-window buf) (point)))
6854 (gnus-summary-show-article))
6856 (defun gnus-article-edit-exit ()
6857 "Exit the article editing without updating."
6858 (interactive)
6859 (when (or (not (buffer-modified-p))
6860 (yes-or-no-p "Article modified; kill anyway? "))
6861 (let ((curbuf (current-buffer))
6862 (p (point))
6863 (window-start (window-start)))
6864 (erase-buffer)
6865 (if (gnus-buffer-live-p gnus-original-article-buffer)
6866 (insert-buffer-substring gnus-original-article-buffer))
6867 (let ((winconf gnus-prev-winconf))
6868 (kill-all-local-variables)
6869 (gnus-article-mode)
6870 (set-window-configuration winconf)
6871 ;; Tippy-toe some to make sure that point remains where it was.
6872 (save-current-buffer
6873 (set-buffer curbuf)
6874 (set-window-start (get-buffer-window (current-buffer)) window-start)
6875 (goto-char p))))
6876 (gnus-summary-show-article)))
6878 (defun gnus-article-edit-full-stops ()
6879 "Interactively repair spacing at end of sentences."
6880 (interactive)
6881 (save-excursion
6882 (goto-char (point-min))
6883 (search-forward-regexp "^$" nil t)
6884 (let ((case-fold-search nil))
6887 ;;;
6888 ;;; Article highlights
6889 ;;;
6891 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
6893 ;;; Internal Variables:
6895 (defcustom gnus-button-url-regexp
6896 (concat
6900 (if (string-match "[[:digit:]]" "1") ;; Support POSIX?
6902 (punct "!?:;.,"))
6903 (concat
6905 ;; Match paired parentheses, e.g. in Wikipedia URLs:
6906 ;; http://thread.gmane.org/47B4E3B2.3050402@gmail.com
6907 "[" chars punct "]+" "(" "[" chars punct "]+" "[" chars "]*)" "[" chars "]*"
6909 "[" chars punct "]+" "[" chars "]"
6911 (concat ;; XEmacs 21.4 doesn't support POSIX.
6915 "Regular expression that matches URLs."
6916 :group 'gnus-article-buttons
6917 :type 'regexp)
6919 (defcustom gnus-button-valid-fqdn-regexp
6920 message-valid-fqdn-regexp
6921 "Regular expression that matches a valid FQDN."
6922 :version "22.1"
6923 :group 'gnus-article-buttons
6924 :type 'regexp)
6926 ;; Regexp suggested by Felix Wiemann in <87oeuomcz9.fsf@news2.ososo.de>
6927 (defcustom gnus-button-valid-localpart-regexp
6929 "Regular expression that matches a localpart of mail addresses or MIDs."
6930 :version "22.1"
6931 :group 'gnus-article-buttons
6932 :type 'regexp)
6934 (defcustom gnus-button-man-handler 'manual-entry
6935 "Function to use for displaying man pages.
6936 The function must take at least one argument with a string naming the
6937 man page."
6938 :version "22.1"
6939 :type '(choice (function-item :tag "Man" manual-entry)
6940 (function-item :tag "Woman" woman)
6941 (function :tag "Other"))
6942 :group 'gnus-article-buttons)
6944 (defcustom gnus-ctan-url "http://tug.ctan.org/tex-archive/"
6945 "Top directory of a CTAN \(Comprehensive TeX Archive Network\) archive.
6946 If the default site is too slow, try to find a CTAN mirror, see
6947 <URL:http://tug.ctan.org/tex-archive/CTAN.sites?action=/index.html>. See also
6948 the variable `gnus-button-handle-ctan'."
6949 :version "22.1"
6950 :group 'gnus-article-buttons
6951 :link '(custom-manual "(gnus)Group Parameters")
6952 :type '(choice (const "http://www.tex.ac.uk/tex-archive/")
6953 (const "http://tug.ctan.org/tex-archive/")
6954 (const "http://www.dante.de/CTAN/")
6955 (string :tag "Other")))
6957 (defcustom gnus-button-ctan-handler 'browse-url
6958 "Function to use for displaying CTAN links.
6959 The function must take one argument, the string naming the URL."
6960 :version "22.1"
6961 :type '(choice (function-item :tag "Browse Url" browse-url)
6962 (function :tag "Other"))
6963 :group 'gnus-article-buttons)
6966 "Bogus strings removed from CTAN URLs."
6967 :version "22.1"
6968 :group 'gnus-article-buttons
6970 (regexp :tag "Other")))
6972 (defcustom gnus-button-ctan-directory-regexp
6973 (regexp-opt
6974 (list "archive-tools" "biblio" "bibliography" "digests" "documentation"
6975 "dviware" "fonts" "graphics" "help" "indexing" "info" "language"
6976 "languages" "macros" "nonfree" "obsolete" "support" "systems"
6977 "tds" "tools" "usergrps" "web") t)
6978 "Regular expression for ctan directories.
6979 It should match all directories in the top level of `gnus-ctan-url'."
6980 :version "22.1"
6981 :group 'gnus-article-buttons
6982 :type 'regexp)
6984 (defcustom gnus-button-mid-or-mail-regexp
6986 gnus-button-valid-fqdn-regexp
6988 "Regular expression that matches a message ID or a mail address."
6989 :version "22.1"
6990 :group 'gnus-article-buttons
6991 :type 'regexp)
6993 (defcustom gnus-button-prefer-mid-or-mail 'gnus-button-mid-or-mail-heuristic
6995 Strings like this can be either a message ID or a mail address. If it is one
6996 of the symbols `mid' or `mail', Gnus will always assume that the string is a
6997 message ID or a mail address, respectively. If this variable is set to the
6998 symbol `ask', always query the user what do do. If it is a function, this
6999 function will be called with the string as its only argument. The function
7000 must return `mid', `mail', `invalid' or `ask'."
7001 :version "22.1"
7002 :group 'gnus-article-buttons
7003 :type '(choice (function-item :tag "Heuristic function"
7004 gnus-button-mid-or-mail-heuristic)
7005 (const ask)
7006 (const mid)
7007 (const mail)))
7009 (defcustom gnus-button-mid-or-mail-heuristic-alist
7011 (-10.0 . "#")
7014 (-5.0 . "@[Nn][Ee][Ww][Ss]") ;; /\@news/i
7015 (-5.0 . "@.*[Dd][Ii][Aa][Ll][Uu][Pp]") ;; /\@.*dialup/i;
7016 (-1.0 . "^[^a-z]+@")
7017 ;;
7019 (-5.0 . "[a-z].*[A-Z].*[a-z].*[A-Z].*@") ;; "([a-z].*[A-Z].*){2,}\@"
7020 (-3.0 . "[A-Z][A-Z][a-z][a-z].*@")
7022 ;;
7023 (-2.0 . "^[0-9]")
7024 (-1.0 . "^[0-9][0-9]")
7025 ;;
7026 ;; -3.0 /^[0-9][0-9a-fA-F]{2,2}/;
7027 (-3.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7028 ;; -5.0 /^[0-9][0-9a-fA-F]{3,3}/;
7029 (-5.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7030 ;;
7031 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][^0-9].*@") ;; "[0-9]{5,}.*\@"
7032 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][^0-9].*@")
7033 ;; "[0-9]{8,}.*\@"
7034 (-3.0
7035 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].*@")
7036 ;; "[0-9]{12,}.*\@"
7037 ;; compensation for TDMA dated mail addresses:
7038 (25.0 . "-dated-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]+.*@")
7039 ;;
7041 (-20.0 . "^slrn")
7042 (-20.0 . "^Pine")
7044 (-20.0 . "_-_") ;; Subject change in thread
7045 ;;
7049 ;;
7050 ;; (5.0 . "") ;; $local_part_len <= 7
7051 (10.0 . "^[^0-9]+@")
7052 (3.0 . "^[^0-9]+[0-9][0-9]?[0-9]?@")
7053 ;; ^[^0-9]+[0-9]{1,3}\@ digits only at end of local part
7054 (3.0 . "\@stud")
7055 ;;
7056 (2.0 . "[a-z][a-z][._-][A-Z][a-z].*@")
7057 ;;
7058 (0.5 . "^[A-Z][a-z]")
7059 (0.5 . "^[A-Z][a-z][a-z]")
7060 (1.5 . "^[A-Z][a-z][A-Z][a-z][^a-z]") ;; ^[A-Z][a-z]{3,3}
7061 (2.0 . "^[A-Z][a-z][A-Z][a-z][a-z][^a-z]")) ;; ^[A-Z][a-z]{4,4}
7062 "An alist of \(RATE . REGEXP\) pairs for `gnus-button-mid-or-mail-heuristic'.
7064 A negative RATE indicates a message IDs, whereas a positive indicates a mail
7065 address. The REGEXP is processed with `case-fold-search' set to nil."
7066 :version "22.1"
7067 :group 'gnus-article-buttons
7068 :type '(repeat (cons (number :tag "Rate")
7069 (regexp :tag "Regexp"))))
7071 (defun gnus-button-mid-or-mail-heuristic (mid-or-mail)
7072 "Guess whether MID-OR-MAIL is a message ID or a mail address.
7073 Returns `mid' if MID-OR-MAIL is a message IDs, `mail' if it's a mail
7074 address, `ask' if unsure and `invalid' if the string is invalid."
7075 (let ((case-fold-search nil)
7076 (list gnus-button-mid-or-mail-heuristic-alist)
7077 (result 0) rate regexp lpartlen elem)
7078 (setq lpartlen
7080 (gnus-message 8 "`%s', length of local part=`%s'." mid-or-mail lpartlen)
7081 ;; Certain special cases...
7082 (when (string-match
7083 (concat
7087 mid-or-mail)
7088 (gnus-message 8 "`%s' is a known mail address." mid-or-mail)
7089 (setq result 'mail))
7091 (gnus-message 8 "`%s' is invalid." mid-or-mail)
7092 (setq result 'invalid))
7093 ;; Nothing more to do, if result is not a number here...
7094 (when (numberp result)
7095 (while list
7096 (setq elem (car list)
7097 rate (car elem)
7098 regexp (cdr elem)
7099 list (cdr list))
7100 (when (string-match regexp mid-or-mail)
7101 (setq result (+ result rate))
7102 (gnus-message
7103 9 "`%s' matched `%s', rate `%s', result `%s'."
7104 mid-or-mail regexp rate result)))
7105 (when (<= lpartlen 7)
7106 (setq result (+ result 5.0))
7107 (gnus-message 9 "`%s' matched (<= lpartlen 7), result `%s'."
7108 mid-or-mail result))
7109 (when (>= lpartlen 12)
7110 (gnus-message 9 "`%s' matched (>= lpartlen 12)" mid-or-mail)
7111 (cond
7112 ((string-match "[0-9][^0-9]+[0-9].*@" mid-or-mail)
7113 ;; Long local part should contain realname if e-mail address,
7114 ;; too many digits: message-id.
7115 ;; $score -= 5.0 + 0.1 * $local_part_len;
7116 (setq rate (* -1.0 (+ 5.0 (* 0.1 lpartlen))))
7117 (setq result (+ result rate))
7118 (gnus-message
7119 9 "Many digits in `%s', rate `%s', result `%s'."
7120 mid-or-mail rate result))
7121 ((string-match "[^aeiouy][^aeiouy][^aeiouy][^aeiouy]+.*\@"
7122 mid-or-mail)
7123 ;; Too few vowels [^aeiouy]{4,}.*\@
7124 (setq result (+ result -5.0))
7125 (gnus-message
7126 9 "Few vowels in `%s', rate `%s', result `%s'."
7127 mid-or-mail -5.0 result))
7128 (t
7129 (setq result (+ result 5.0))
7130 (gnus-message
7131 9 "`%s', rate `%s', result `%s'." mid-or-mail 5.0 result)))))
7132 (gnus-message 8 "`%s': Final rate is `%s'." mid-or-mail result)
7133 ;; Maybe we should make this a customizable alist: (condition . 'result)
7134 (cond
7135 ((symbolp result) result)
7136 ;; Now convert number into proper results:
7137 ((< result -10.0) 'mid)
7138 ((> result 10.0) 'mail)
7139 (t 'ask))))
7141 (defun gnus-button-handle-mid-or-mail (mid-or-mail)
7142 (let* ((pref gnus-button-prefer-mid-or-mail) guessed
7143 (url-mid (concat "news" ":" mid-or-mail))
7144 (url-mailto (concat "mailto" ":" mid-or-mail)))
7145 (gnus-message 9 "mid-or-mail=%s" mid-or-mail)
7146 (when (fboundp pref)
7147 (setq guessed
7148 ;; get rid of surrounding angles...
7149 (funcall pref
7151 (if (or (eq 'mid guessed) (eq 'mail guessed))
7152 (setq pref guessed)
7153 (setq pref 'ask)))
7154 (if (eq pref 'ask)
7155 (save-window-excursion
7156 (if (y-or-n-p (concat "Is <" mid-or-mail "> a mail address? "))
7157 (setq pref 'mail)
7158 (setq pref 'mid))))
7159 (cond ((eq pref 'mid)
7160 (gnus-message 8 "calling `gnus-button-handle-news' %s" url-mid)
7161 (gnus-button-handle-news url-mid))
7162 ((eq pref 'mail)
7163 (gnus-message 8 "calling `gnus-url-mailto' %s" url-mailto)
7164 (gnus-url-mailto url-mailto))
7165 (t (gnus-message 3 "Invalid string.")))))
7167 (defun gnus-button-handle-custom (fun arg)
7168 "Call function FUN on argument ARG.
7169 Both FUN and ARG are supposed to be strings. ARG will be passed
7170 as a symbol to FUN."
7171 (funcall (intern fun)
7172 (if (string-match "^customize-apropos" fun)
7173 arg
7174 (intern arg))))
7178 ;; FIXME: Maybe we should merge some of the functions that do quite similar
7179 ;; stuff?
7181 (defun gnus-button-handle-describe-function (url)
7182 "Call `describe-function' when pushing the corresponding URL button."
7183 (describe-function
7184 (intern
7185 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7187 (defun gnus-button-handle-describe-variable (url)
7188 "Call `describe-variable' when pushing the corresponding URL button."
7189 (describe-variable
7190 (intern
7191 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7193 (defun gnus-button-handle-symbol (url)
7194 "Display help on variable or function.
7195 Calls `describe-variable' or `describe-function'."
7196 (let ((sym (intern url)))
7197 (cond
7198 ((fboundp sym) (describe-function sym))
7199 ((boundp sym) (describe-variable sym))
7200 (t (gnus-message 3 "`%s' is not a known function of variable." url)))))
7202 (defun gnus-button-handle-describe-key (url)
7203 "Call `describe-key' when pushing the corresponding URL button."
7204 (let* ((key-string
7205 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))
7206 (keys (ignore-errors (eval `(kbd ,key-string)))))
7207 (if keys
7208 (describe-key keys)
7209 (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
7211 (defun gnus-button-handle-apropos (url)
7212 "Call `apropos' when pushing the corresponding URL button."
7213 (apropos (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7215 (defun gnus-button-handle-apropos-command (url)
7216 "Call `apropos' when pushing the corresponding URL button."
7217 (apropos-command
7218 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7220 (defun gnus-button-handle-apropos-variable (url)
7221 "Call `apropos' when pushing the corresponding URL button."
7222 (funcall
7223 (if (fboundp 'apropos-variable) 'apropos-variable 'apropos)
7224 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7226 (defun gnus-button-handle-apropos-documentation (url)
7227 "Call `apropos' when pushing the corresponding URL button."
7228 (funcall
7229 (if (fboundp 'apropos-documentation) 'apropos-documentation 'apropos)
7230 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7232 (defun gnus-button-handle-library (url)
7233 "Call `locate-library' when pushing the corresponding URL button."
7234 (gnus-message 9 "url=`%s'" url)
7235 (let* ((lib (locate-library url))
7236 (file (gnus-replace-in-string (or lib "") "\.elc" ".el")))
7237 (if (not lib)
7238 (gnus-message 1 "Cannot locale library `%s'." url)
7239 (find-file-read-only file))))
7241 (defun gnus-button-handle-ctan (url)
7242 "Call `browse-url' when pushing a CTAN URL button."
7243 (funcall
7244 gnus-button-ctan-handler
7245 (concat
7246 gnus-ctan-url
7247 (gnus-replace-in-string url gnus-button-handle-ctan-bogus-regexp ""))))
7249 (defcustom gnus-button-tex-level 5
7250 "*Integer that says how many TeX-related buttons Gnus will show.
7251 The higher the number, the more buttons will appear and the more false
7252 positives are possible. Note that you can set this variable local to
7253 specific groups. Setting it higher in TeX groups is probably a good idea.
7254 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
7255 how to set variables in specific groups."
7256 :version "22.1"
7257 :group 'gnus-article-buttons
7258 :link '(custom-manual "(gnus)Group Parameters")
7259 :type 'integer)
7261 (defcustom gnus-button-man-level 5
7262 "*Integer that says how many man-related buttons Gnus will show.
7263 The higher the number, the more buttons will appear and the more false
7264 positives are possible. Note that you can set this variable local to
7265 specific groups. Setting it higher in Unix groups is probably a good idea.
7266 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
7267 how to set variables in specific groups."
7268 :version "22.1"
7269 :group 'gnus-article-buttons
7270 :link '(custom-manual "(gnus)Group Parameters")
7271 :type 'integer)
7273 (defcustom gnus-button-emacs-level 5
7274 "*Integer that says how many emacs-related buttons Gnus will show.
7275 The higher the number, the more buttons will appear and the more false
7276 positives are possible. Note that you can set this variable local to
7277 specific groups. Setting it higher in Emacs or Gnus related groups is
7278 probably a good idea. See Info node `(gnus)Group Parameters' and the variable
7279 `gnus-parameters' on how to set variables in specific groups."
7280 :version "22.1"
7281 :group 'gnus-article-buttons
7282 :link '(custom-manual "(gnus)Group Parameters")
7283 :type 'integer)
7285 (defcustom gnus-button-message-level 5
7286 "*Integer that says how many buttons for news or mail messages will appear.
7287 The higher the number, the more buttons will appear and the more false
7288 positives are possible."
7289 ;; mail addresses, MIDs, URLs for news, ...
7290 :version "22.1"
7291 :group 'gnus-article-buttons
7292 :type 'integer)
7294 (defcustom gnus-button-browse-level 5
7295 "*Integer that says how many buttons for browsing will appear.
7296 The higher the number, the more buttons will appear and the more false
7297 positives are possible."
7298 ;; stuff handled by `browse-url' or `gnus-button-embedded-url'
7299 :version "22.1"
7300 :group 'gnus-article-buttons
7301 :type 'integer)
7303 (defcustom gnus-button-alist
7305 0 (>= gnus-button-message-level 0) gnus-button-handle-news 3)
7308 0 t gnus-button-handle-news 2)
7310 1 (>= gnus-button-message-level 0) gnus-button-fetch-group 5)
7312 0 (>= gnus-button-message-level 0) gnus-button-fetch-group 3)
7313 ;; RFC 2392 (Don't allow `/' in domain part --> CID)
7315 0 (>= gnus-button-message-level 0) gnus-button-message-id 2)
7317 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7319 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7321 0 (>= gnus-button-message-level 0) gnus-url-mailto 2)
7322 ;; RFC 2368 (The mailto URL scheme)
7324 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7326 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7327 ;; CTAN
7329 gnus-button-ctan-directory-regexp
7331 0 (>= gnus-button-tex-level 1) gnus-button-handle-ctan 1)
7333 gnus-button-ctan-directory-regexp
7335 1 (>= gnus-button-tex-level 6) gnus-button-handle-ctan 1)
7336 ((concat
7338 gnus-button-ctan-directory-regexp
7340 1 (>= gnus-button-tex-level 8) gnus-button-handle-ctan 1)
7341 ;; This is info (home-grown style) <info://foo/bar+baz>
7343 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7344 ;; Info GNOME style <info:foo#bar_baz>
7346 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-gnome 1)
7347 ;; Info KDE style <info:(foo)bar baz>
7349 1 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-kde 2)
7351 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 2)
7352 ("\\b\\(C-h\\|<?[Ff]1>?\\)[ \t\n]+i[ \t\n]+d?[ \t\n]?m[ \t\n]+[^ ]+ ?[^ ]+[ \t\n]+RET\\([ \t\n]+i[ \t\n]+[^ ]+ ?[^ ]+[ \t\n]+RET\\([ \t\n,]*\\)\\)?"
7353 ;; Info links like `C-h i d m Gnus RET' or `C-h i d m Gnus RET i partial RET'
7354 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-keystrokes 0)
7355 ;; This is custom
7357 (>= gnus-button-emacs-level 1) gnus-button-handle-custom 1 2)
7358 ;; Emacs help commands
7360 ;; regexp doesn't match arguments containing ` '.
7361 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos 1)
7363 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-command 1)
7365 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-variable 1)
7367 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-documentation 1)
7368 ;; The following entries may lead to many false positives so don't enable
7369 ;; them by default (use a high button level).
7371 ;; Exclude [.?] for URLs in gmane.emacs.cvs
7372 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7374 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7376 0 (>= gnus-button-emacs-level 8) gnus-button-handle-symbol 1)
7378 0 (>= gnus-button-emacs-level 9) gnus-button-handle-symbol 1)
7380 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-variable 1)
7382 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-function 1)
7384 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
7386 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
7388 ;; Unlike the other regexps we really have to require quoting
7389 ;; here to determine where it ends.
7390 1 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
7391 ;; This is how URLs _should_ be embedded in text (RFC 1738, RFC 2396)...
7393 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7394 ;; RFC 2396 (2.4.3., delims) ...
7396 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7397 ;; Raw URLs.
7398 (gnus-button-url-regexp
7399 0 (>= gnus-button-browse-level 0) browse-url 0)
7400 ;; man pages
7402 0 (and (>= gnus-button-man-level 1) (< gnus-button-man-level 3))
7403 gnus-button-handle-man 1)
7404 ;; more man pages: resolv.conf(5), iso_8859-1(7), xterm(1x)
7406 0 (and (>= gnus-button-man-level 3) (< gnus-button-man-level 5))
7407 gnus-button-handle-man 1)
7408 ;; even more: Apache::PerlRun(3pm), PDL::IO::FastRaw(3pm),
7409 ;; SoWWWAnchor(3iv), XSelectInput(3X11), X(1), X(7)
7411 0 (>= gnus-button-man-level 5) gnus-button-handle-man 1)
7412 ;; Recognizing patches to .el files. This is somewhat obscure,
7413 ;; but considering the percentage of Gnus users who hack Emacs
7414 ;; Lisp files...
7416 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7418 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7419 ;; MID or mail: To avoid too many false positives we don't try to catch
7420 ;; all kind of allowed MIDs or mail addresses. Domain part must contain
7421 ;; at least one dot. TLD must contain two or three chars or be a know TLD
7422 ;; (info|name|...). Put this entry near the _end_ of `gnus-button-alist'
7423 ;; so that non-ambiguous entries (see above) match first.
7424 (gnus-button-mid-or-mail-regexp
7425 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1))
7426 "*Alist of regexps matching buttons in article bodies.
7428 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
7429 REGEXP: is the string (case insensitive) matching text around the button (can
7430 also be Lisp expression evaluating to a string),
7431 BUTTON: is the number of the regexp grouping actually matching the button,
7432 FORM: is a Lisp expression which must eval to true for the button to
7433 be added,
7434 CALLBACK: is the function to call when the user push this button, and each
7435 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
7437 CALLBACK can also be a variable, in that case the value of that
7438 variable it the real callback function."
7439 :group 'gnus-article-buttons
7440 :type '(repeat (list (choice regexp variable sexp)
7441 (integer :tag "Button")
7442 (sexp :tag "Form")
7443 (function :tag "Callback")
7444 (repeat :tag "Par"
7445 :inline t
7446 (integer :tag "Regexp group")))))
7447 (put 'gnus-button-alist 'risky-local-variable t)
7449 (defcustom gnus-header-button-alist
7451 0 (>= gnus-button-message-level 0) gnus-button-message-id 0)
7453 1 (>= gnus-button-message-level 0) gnus-button-reply 1)
7455 0 (>= gnus-button-message-level 0) gnus-msg-mail 0)
7456 ("^X-[Uu][Rr][Ll]:" gnus-button-url-regexp
7457 0 (>= gnus-button-browse-level 0) browse-url 0)
7458 ("^Subject:" gnus-button-url-regexp
7459 0 (>= gnus-button-browse-level 0) browse-url 0)
7460 ("^[^:]+:" gnus-button-url-regexp
7461 0 (>= gnus-button-browse-level 0) browse-url 0)
7462 ("^OpenPGP:.*url=" gnus-button-url-regexp
7463 0 (>= gnus-button-browse-level 0) gnus-button-openpgp 0)
7465 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7467 1 (>= gnus-button-message-level 0) gnus-button-message-id 4))
7468 "*Alist of headers and regexps to match buttons in article heads.
7470 This alist is very similar to `gnus-button-alist', except that each
7471 alist has an additional HEADER element first in each entry:
7473 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
7475 HEADER is a regexp to match a header. For a fuller explanation, see
7476 `gnus-button-alist'."
7477 :group 'gnus-article-buttons
7478 :group 'gnus-article-headers
7479 :type '(repeat (list (regexp :tag "Header")
7480 (choice regexp variable)
7481 (integer :tag "Button")
7482 (sexp :tag "Form")
7483 (function :tag "Callback")
7484 (repeat :tag "Par"
7485 :inline t
7486 (integer :tag "Regexp group")))))
7487 (put 'gnus-header-button-alist 'risky-local-variable t)
7489 ;;; Commands:
7491 (defun gnus-article-push-button (event)
7492 "Check text under the mouse pointer for a callback function.
7493 If the text under the mouse pointer has a `gnus-callback' property,
7494 call it with the value of the `gnus-data' text property."
7495 (interactive "e")
7496 (set-buffer (window-buffer (posn-window (event-start event))))
7497 (let* ((pos (posn-point (event-start event)))
7498 (data (get-text-property pos 'gnus-data))
7499 (fun (get-text-property pos 'gnus-callback)))
7500 (goto-char pos)
7501 (when fun
7502 (funcall fun data))))
7504 (defun gnus-article-press-button ()
7505 "Check text at point for a callback function.
7506 If the text at point has a `gnus-callback' property,
7507 call it with the value of the `gnus-data' text property."
7508 (interactive)
7509 (let ((data (get-text-property (point) 'gnus-data))
7510 (fun (get-text-property (point) 'gnus-callback)))
7511 (when fun
7512 (funcall fun data))))
7514 (defun gnus-article-highlight (&optional force)
7515 "Highlight current article.
7516 This function calls `gnus-article-highlight-headers',
7517 `gnus-article-highlight-citation',
7518 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7519 do the highlighting. See the documentation for those functions."
7520 (interactive (list 'force))
7521 (gnus-article-highlight-headers)
7522 (gnus-article-highlight-citation force)
7523 (gnus-article-highlight-signature)
7524 (gnus-article-add-buttons force)
7525 (gnus-article-add-buttons-to-head))
7527 (defun gnus-article-highlight-some (&optional force)
7528 "Highlight current article.
7529 This function calls `gnus-article-highlight-headers',
7530 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7531 do the highlighting. See the documentation for those functions."
7532 (interactive (list 'force))
7533 (gnus-article-highlight-headers)
7534 (gnus-article-highlight-signature)
7535 (gnus-article-add-buttons))
7537 (defun gnus-article-highlight-headers ()
7538 "Highlight article headers as specified by `gnus-header-face-alist'."
7539 (interactive)
7540 (gnus-with-article-headers
7541 (let (regexp header-face field-face from hpoints fpoints)
7542 (dolist (entry gnus-header-face-alist)
7543 (goto-char (point-min))
7545 (if (string-equal "" (nth 0 entry))
7547 (nth 0 entry))
7549 header-face (nth 1 entry)
7550 field-face (nth 2 entry))
7551 (while (and (re-search-forward regexp nil t)
7552 (not (eobp)))
7553 (beginning-of-line)
7554 (setq from (point))
7555 (unless (search-forward ":" nil t)
7556 (forward-char 1))
7557 (when (and header-face
7558 (not (memq (point) hpoints)))
7559 (push (point) hpoints)
7560 (gnus-put-text-property from (point) 'face header-face))
7561 (when (and field-face
7562 (not (memq (setq from (point)) fpoints)))
7563 (push from fpoints)
7565 (forward-char -2)
7566 (goto-char (point-max)))
7567 (gnus-put-text-property from (point) 'face field-face)))))))
7569 (defun gnus-article-highlight-signature ()
7570 "Highlight the signature in an article.
7571 It does this by highlighting everything after
7572 `gnus-signature-separator' using the face `gnus-signature'."
7573 (interactive)
7574 (gnus-with-article-buffer
7575 (let ((inhibit-point-motion-hooks t))
7576 (save-restriction
7577 (when (and gnus-signature-face
7578 (gnus-article-narrow-to-signature))
7579 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max) nil t)
7580 'face gnus-signature-face)
7581 (widen)
7582 (gnus-article-search-signature)
7583 (let ((start (match-beginning 0))
7584 (end (set-marker (make-marker) (1+ (match-end 0)))))
7585 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
7586 end)))))))
7588 (defun gnus-button-in-region-p (b e prop)
7589 "Say whether PROP exists in the region."
7590 (text-property-not-all b e prop nil))
7592 (defun gnus-article-add-buttons (&optional force)
7593 "Find external references in the article and make buttons of them.
7595 specified by `gnus-button-alist'."
7596 (interactive (list 'force))
7597 (gnus-with-article-buffer
7598 (let ((inhibit-point-motion-hooks t)
7599 (case-fold-search t)
7600 (alist gnus-button-alist)
7601 beg entry regexp)
7602 ;; Remove all old markers.
7603 (let (marker entry new-list)
7604 (while (setq marker (pop gnus-button-marker-list))
7605 (if (or (< marker (point-min)) (>= marker (point-max)))
7606 (push marker new-list)
7607 (goto-char marker)
7608 (when (setq entry (gnus-button-entry))
7609 (put-text-property (match-beginning (nth 1 entry))
7610 (match-end (nth 1 entry))
7611 'gnus-callback nil))
7612 (set-marker marker nil)))
7613 (setq gnus-button-marker-list new-list))
7614 ;; We skip the headers.
7615 (article-goto-body)
7616 (setq beg (point))
7617 (while (setq entry (pop alist))
7618 (setq regexp (eval (car entry)))
7619 (goto-char beg)
7620 (while (re-search-forward regexp nil t)
7621 (let ((start (match-beginning (nth 1 entry)))
7622 (end (match-end (nth 1 entry)))
7623 (from (match-beginning 0)))
7624 (when (and (or (eq t (nth 2 entry))
7625 (eval (nth 2 entry)))
7626 (not (gnus-button-in-region-p
7627 start end 'gnus-callback)))
7628 ;; That optional form returned non-nil, so we add the
7629 ;; button.
7630 (setq from (set-marker (make-marker) from))
7631 (push from gnus-button-marker-list)
7632 (unless (and (eq (car entry) 'gnus-button-url-regexp)
7633 (gnus-article-extend-url-button from start end))
7634 (gnus-article-add-button start end
7635 'gnus-button-push from)))))))))
7637 (defun gnus-article-extend-url-button (beg start end)
7638 "Extend url button if url is folded into two or more lines.
7639 Return non-nil if button is extended. BEG is a marker that points to
7640 the beginning position of a text containing url. START and END are
7641 the endpoints of a url button before it is extended. The concatenated
7642 url is put as the `gnus-button-url' overlay property on the button."
7643 (let ((opoint (point))
7644 (points (list start end))
7645 url delim regexp)
7646 (prog1
7647 (when (and (progn
7648 (goto-char end)
7650 (progn
7651 (goto-char start)
7652 (string-match
7654 (buffer-substring (point-at-bol) start)))
7655 (progn
7656 (setq url (list (buffer-substring start end))
7658 (beginning-of-line)
7659 (setq regexp (concat
7660 (when (and (looking-at
7661 message-cite-prefix-regexp)
7662 (< (match-end 0) start))
7663 (regexp-quote (match-string 0)))
7664 "\
7667 (while (progn
7668 (forward-line 1)
7669 (and (looking-at regexp)
7670 (prog1
7671 (match-beginning 1)
7672 (push (or (match-string 2)
7673 (match-string 1))
7674 url)
7675 (push (setq end (or (match-end 2)
7676 (match-end 1)))
7677 points)
7678 (push (or (match-beginning 2)
7679 (match-beginning 1))
7680 points)))))
7681 (match-beginning 2)))
7682 (let (gnus-article-mouse-face widget-mouse-face)
7683 (while points
7684 (gnus-article-add-button (pop points) (pop points)
7685 'gnus-button-push beg)))
7686 (let ((overlay (gnus-make-overlay start end)))
7687 (gnus-overlay-put overlay 'evaporate t)
7688 (gnus-overlay-put overlay 'gnus-button-url
7689 (list (mapconcat 'identity (nreverse url) "")))
7690 (when gnus-article-mouse-face
7691 (gnus-overlay-put overlay 'mouse-face gnus-article-mouse-face)))
7692 t)
7693 (goto-char opoint))))
7695 ;; Add buttons to the head of an article.
7696 (defun gnus-article-add-buttons-to-head ()
7697 "Add buttons to the head of the article."
7698 (interactive)
7699 (gnus-with-article-headers
7700 (let (beg end)
7701 (dolist (entry gnus-header-button-alist)
7702 ;; Each alist entry.
7703 (goto-char (point-min))
7704 (while (re-search-forward (car entry) nil t)
7705 ;; Each header matching the entry.
7706 (setq beg (match-beginning 0))
7708 (match-beginning 0))
7709 (point-max)))
7710 (goto-char beg)
7711 (while (re-search-forward (eval (nth 1 entry)) end t)
7712 ;; Each match within a header.
7713 (let* ((entry (cdr entry))
7714 (start (match-beginning (nth 1 entry)))
7715 (end (match-end (nth 1 entry)))
7716 (form (nth 2 entry)))
7717 (goto-char (match-end 0))
7718 (when (eval form)
7719 (gnus-article-add-button
7720 start end (nth 3 entry)
7721 (buffer-substring (match-beginning (nth 4 entry))
7722 (match-end (nth 4 entry)))))))
7723 (goto-char end))))))
7725 ;;; External functions:
7727 (defun gnus-article-add-button (from to fun &optional data)
7728 "Create a button between FROM and TO with callback FUN and data DATA."
7729 (when gnus-article-button-face
7730 (gnus-overlay-put (gnus-make-overlay from to nil t)
7731 'face gnus-article-button-face))
7732 (gnus-add-text-properties
7733 from to
7734 (nconc (and gnus-article-mouse-face
7735 (list gnus-mouse-face-prop gnus-article-mouse-face))
7736 (list 'gnus-callback fun)
7737 (and data (list 'gnus-data data))))
7738 (widget-convert-button 'link from to :action 'gnus-widget-press-button
7739 :button-keymap gnus-widget-button-keymap))
7741 ;;; Internal functions:
7743 (defun gnus-article-set-globals ()
7744 (with-current-buffer gnus-summary-buffer
7745 (gnus-set-global-variables)))
7747 (defun gnus-signature-toggle (end)
7748 (gnus-with-article-buffer
7749 (let ((inhibit-point-motion-hooks t))
7750 (if (text-property-any end (point-max) 'article-type 'signature)
7751 (progn
7752 (gnus-delete-wash-type 'signature)
7753 (gnus-remove-text-properties-when
7754 'article-type 'signature end (point-max)
7755 (cons 'article-type (cons 'signature
7756 gnus-hidden-properties))))
7757 (gnus-add-wash-type 'signature)
7758 (gnus-add-text-properties-when
7759 'article-type nil end (point-max)
7760 (cons 'article-type (cons 'signature
7761 gnus-hidden-properties)))))
7762 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
7763 (gnus-set-mode-line 'article))))
7765 (defun gnus-button-entry ()
7766 ;; Return the first entry in `gnus-button-alist' matching this place.
7767 (let ((alist gnus-button-alist)
7768 (entry nil))
7769 (while alist
7770 (setq entry (pop alist))
7771 (if (looking-at (eval (car entry)))
7772 (setq alist nil)
7773 (setq entry nil)))
7774 entry))
7776 (defun gnus-button-push (marker)
7777 ;; Push button starting at MARKER.
7778 (save-excursion
7779 (goto-char marker)
7780 (let* ((entry (gnus-button-entry))
7781 (inhibit-point-motion-hooks t)
7782 (fun (nth 3 entry))
7783 (args (or (and (eq (car entry) 'gnus-button-url-regexp)
7784 (get-char-property marker 'gnus-button-url))
7785 (mapcar (lambda (group)
7786 (let ((string (match-string group)))
7787 (set-text-properties
7788 0 (length string) nil string)
7789 string))
7790 (nthcdr 4 entry)))))
7791 (cond
7792 ((fboundp fun)
7793 (apply fun args))
7794 ((and (boundp fun)
7795 (fboundp (symbol-value fun)))
7796 (apply (symbol-value fun) args))
7797 (t
7798 (gnus-message 1 "You must define `%S' to use this button"
7799 (cons fun args)))))))
7801 (defun gnus-parse-news-url (url)
7802 (let (scheme server port group message-id articles)
7803 (with-temp-buffer
7804 (insert url)
7805 (goto-char (point-min))
7807 (setq scheme (match-string 1))
7808 (goto-char (match-end 0)))
7810 (setq server (match-string 1))
7811 (setq port (if (stringp (match-string 3))
7812 (string-to-number (match-string 3))
7813 (match-string 3)))
7814 (goto-char (match-end 0)))
7816 (cond
7818 (setq message-id (match-string 1)))
7820 (setq group (match-string 1)
7821 articles (split-string (match-string 2) "-")))
7823 (setq group (match-string 1)))
7824 (t
7825 (error "Unknown news URL syntax"))))
7826 (list scheme server port group message-id articles)))
7828 (defun gnus-button-handle-news (url)
7829 "Fetch a news URL."
7830 (destructuring-bind (scheme server port group message-id articles)
7831 (gnus-parse-news-url url)
7832 (cond
7833 (message-id
7834 (with-current-buffer gnus-summary-buffer
7835 (if server
7836 (let ((gnus-refer-article-method
7837 (nconc (list (list 'nntp server))
7838 gnus-refer-article-method))
7839 (nntp-port-number (or port "nntp")))
7840 (gnus-message 7 "Fetching %s with %s"
7841 message-id gnus-refer-article-method)
7842 (gnus-summary-refer-article message-id))
7843 (gnus-summary-refer-article message-id))))
7844 (group
7845 (gnus-button-fetch-group url)))))
7847 (defun gnus-button-patch (library line)
7848 "Visit an Emacs Lisp library LIBRARY on line LINE."
7849 (interactive)
7850 (let ((file (locate-library (file-name-nondirectory library))))
7851 (unless file
7852 (error "Couldn't find library %s" library))
7853 (find-file file)
7854 (goto-line (string-to-number line))))
7856 (defun gnus-button-handle-man (url)
7857 "Fetch a man page."
7858 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
7859 (when (eq gnus-button-man-handler 'woman)
7861 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
7862 (funcall gnus-button-man-handler url))
7864 (defun gnus-button-handle-info-url (url)
7865 "Fetch an info URL."
7866 (setq url (mm-subst-char-in-string ?+ ?\ url))
7867 (cond
7869 (gnus-info-find-node
7870 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
7871 "Gnus")
7872 ")" (gnus-url-unhex-string (match-string 2 url)))))
7874 (setq url
7875 (gnus-replace-in-string
7877 (gnus-info-find-node url))
7878 (t (error "Can't parse %s" url))))
7880 (defun gnus-button-handle-info-url-gnome (url)
7881 "Fetch GNOME style info URL."
7882 (setq url (mm-subst-char-in-string ?_ ?\ url))
7884 (gnus-info-find-node
7885 (concat "("
7886 (gnus-url-unhex-string
7887 (match-string 1 url))
7888 ")"
7889 (or (gnus-url-unhex-string
7890 (match-string 2 url))
7891 "Top")))
7892 (error "Can't parse %s" url)))
7894 (defun gnus-button-handle-info-url-kde (url)
7895 "Fetch KDE style info URL."
7896 (gnus-info-find-node (gnus-url-unhex-string url)))
7898 ;; (info) will autoload info.el
7899 (declare-function Info-menu "info" (menu-item &optional fork))
7900 (declare-function Info-index-next "info" (num))
7902 (defun gnus-button-handle-info-keystrokes (url)
7903 "Call `info' when pushing the corresponding URL button."
7904 ;; For links like `C-h i d m gnus RET part RET , ,', `C-h i d m CC Mode RET'.
7905 (let (node indx comma)
7906 (if (string-match
7911 url)
7912 (setq node (match-string 2 url)
7913 indx (match-string 3 url))
7914 (error "Can't parse %s" url))
7915 (info)
7916 (Info-directory)
7917 (Info-menu node)
7918 (when (> (length indx) 0)
7921 indx)
7922 (setq comma (match-string 2 indx))
7923 (setq indx (match-string 1 indx))
7924 (Info-index indx)
7925 (when comma
7926 (dotimes (i (with-temp-buffer
7927 (insert comma)
7928 ;; Note: the XEmacs version of `how-many' takes
7929 ;; no optional argument.
7930 (goto-char (point-min))
7931 (how-many ",")))
7932 (Info-index-next 1)))
7933 nil)))
7935 ;; Called after pgg-snarf-keys-region, which autoloads pgg.el.
7936 (declare-function pgg-display-output-buffer "pgg" (start end status))
7938 (defun gnus-button-openpgp (url)
7939 "Retrieve and add an OpenPGP key given URL from an OpenPGP header."
7940 (with-temp-buffer
7941 (mm-url-insert-file-contents-external url)
7942 (pgg-snarf-keys-region (point-min) (point-max))
7943 (pgg-display-output-buffer nil nil nil)))
7945 (defun gnus-button-message-id (message-id)
7946 "Fetch MESSAGE-ID."
7947 (with-current-buffer gnus-summary-buffer
7948 (gnus-summary-refer-article message-id)))
7950 (defun gnus-button-fetch-group (address &rest ignore)
7951 "Fetch GROUP specified by ADDRESS."
7953 address)
7954 ;; Allow to use `gnus-button-fetch-group' in `browse-url-browser-function'
7955 ;; for nntp:// and news://
7956 (setq address (match-string 3 address)))
7957 (if (not (string-match "[:/]" address))
7958 ;; This is just a simple group url.
7959 (gnus-group-read-ephemeral-group address gnus-select-method)
7960 (if (not
7961 (string-match
7963 address))
7964 (error "Can't parse %s" address)
7965 (gnus-group-read-ephemeral-group
7966 (match-string 4 address)
7967 `(nntp ,(match-string 1 address)
7968 (nntp-address ,(match-string 1 address))
7969 (nntp-port-number ,(if (match-end 3)
7970 (match-string 3 address)
7971 "nntp")))
7972 nil nil nil
7973 (and (match-end 6) (list (string-to-number (match-string 6 address))))))))
7975 (defun gnus-url-parse-query-string (query &optional downcase)
7976 (let (retval pairs cur key val)
7977 (setq pairs (split-string query "&"))
7978 (while pairs
7979 (setq cur (car pairs)
7980 pairs (cdr pairs))
7981 (if (not (string-match "=" cur))
7982 nil ; Grace
7983 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
7984 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
7985 (if downcase
7986 (setq key (downcase key)))
7987 (setq cur (assoc key retval))
7988 (if cur
7989 (setcdr cur (cons val (cdr cur)))
7990 (setq retval (cons (list key val) retval)))))
7991 retval))
7993 (defun gnus-url-mailto (url)
7994 ;; Send mail to someone
7996 (setq url (substring url (match-beginning 1) nil)))
7997 (let (to args subject func)
7998 (setq args (gnus-url-parse-query-string
8000 (substring url 1)
8002 (concat "to=" (match-string 1 url) "&"
8003 (match-string 2 url))
8004 (concat "to=" url)))
8005 t)
8006 subject (cdr-safe (assoc "subject" args)))
8007 (gnus-msg-mail)
8008 (while args
8009 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
8010 (if (fboundp func)
8011 (funcall func)
8012 (message-position-on-field (caar args)))
8013 (insert (gnus-replace-in-string
8014 (mapconcat 'identity (reverse (cdar args)) ", ")
8016 (setq args (cdr args)))
8017 (if subject
8018 (message-goto-body)
8019 (message-goto-subject))))
8021 (defun gnus-button-embedded-url (address)
8022 "Activate ADDRESS with `browse-url'."
8023 (browse-url (gnus-strip-whitespace address)))
8025 ;;; Next/prev buttons in the article buffer.
8030 (defvar gnus-prev-page-map
8031 (let ((map (make-sparse-keymap)))
8032 (define-key map gnus-mouse-2 'gnus-button-prev-page)
8034 map))
8036 (defvar gnus-next-page-map
8037 (let ((map (make-sparse-keymap)))
8038 (unless (>= emacs-major-version 21)
8039 ;; XEmacs doesn't care.
8040 (set-keymap-parent map gnus-article-mode-map))
8041 (define-key map gnus-mouse-2 'gnus-button-next-page)
8043 map))
8045 (defun gnus-insert-prev-page-button ()
8046 (let ((b (point)) e
8047 (inhibit-read-only t))
8048 (gnus-eval-format
8049 gnus-prev-page-line-format nil
8050 `(keymap ,gnus-prev-page-map
8051 gnus-prev t
8052 gnus-callback gnus-article-button-prev-page
8053 article-type annotation))
8054 (setq e (if (bolp)
8055 ;; Exclude a newline.
8056 (1- (point))
8057 (point)))
8058 (when gnus-article-button-face
8059 (gnus-overlay-put (gnus-make-overlay b e nil t)
8060 'face gnus-article-button-face))
8061 (widget-convert-button
8062 'link b e
8063 :action 'gnus-button-prev-page
8064 :button-keymap gnus-prev-page-map)))
8066 (defun gnus-button-next-page (&optional args more-args)
8067 "Go to the next page."
8068 (interactive)
8069 (let ((win (selected-window)))
8070 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8071 (gnus-article-next-page)
8072 (select-window win)))
8074 (defun gnus-button-prev-page (&optional args more-args)
8075 "Go to the prev page."
8076 (interactive)
8077 (let ((win (selected-window)))
8078 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8079 (gnus-article-prev-page)
8080 (select-window win)))
8082 (defun gnus-insert-next-page-button ()
8083 (let ((b (point)) e
8084 (inhibit-read-only t))
8085 (gnus-eval-format gnus-next-page-line-format nil
8086 `(keymap ,gnus-next-page-map
8087 gnus-next t
8088 gnus-callback gnus-article-button-next-page
8089 article-type annotation))
8090 (setq e (if (bolp)
8091 ;; Exclude a newline.
8092 (1- (point))
8093 (point)))
8094 (when gnus-article-button-face
8095 (gnus-overlay-put (gnus-make-overlay b e nil t)
8096 'face gnus-article-button-face))
8097 (widget-convert-button
8098 'link b e
8099 :action 'gnus-button-next-page
8100 :button-keymap gnus-next-page-map)))
8102 (defun gnus-article-button-next-page (arg)
8103 "Go to the next page."
8104 (interactive "P")
8105 (let ((win (selected-window)))
8106 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8107 (gnus-article-next-page)
8108 (select-window win)))
8110 (defun gnus-article-button-prev-page (arg)
8111 "Go to the prev page."
8112 (interactive "P")
8113 (let ((win (selected-window)))
8114 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8115 (gnus-article-prev-page)
8116 (select-window win)))
8118 (defvar gnus-decode-header-methods
8119 '(mail-decode-encoded-word-region)
8120 "List of methods used to decode headers.
8122 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
8123 is FUNCTION, FUNCTION will be applied to all newsgroups. If item is a
8124 \(REGEXP . FUNCTION), FUNCTION will be only apply to the newsgroups
8125 whose names match REGEXP.
8127 For example:
8129 mail-decode-encoded-word-region
8131 ")
8133 (defvar gnus-decode-header-methods-cache nil)
8135 (defun gnus-multi-decode-header (start end)
8136 "Apply the functions from `gnus-encoded-word-methods' that match."
8137 (unless (and gnus-decode-header-methods-cache
8138 (eq gnus-newsgroup-name
8139 (car gnus-decode-header-methods-cache)))
8140 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
8141 (dolist (x gnus-decode-header-methods)
8142 (if (symbolp x)
8143 (nconc gnus-decode-header-methods-cache (list x))
8144 (if (and gnus-newsgroup-name
8145 (string-match (car x) gnus-newsgroup-name))
8146 (nconc gnus-decode-header-methods-cache
8147 (list (cdr x)))))))
8148 (let ((xlist gnus-decode-header-methods-cache))
8149 (pop xlist)
8150 (save-restriction
8151 (narrow-to-region start end)
8152 (while xlist
8153 (funcall (pop xlist) (point-min) (point-max))))))
8155 ;;;
8156 ;;; Treatment top-level handling.
8157 ;;;
8159 (defun gnus-treat-article (condition &optional part-number total-parts type)
8160 (let ((length (- (point-max) (point-min)))
8161 (alist gnus-treatment-function-alist)
8162 (article-goto-body-goes-to-point-min-p t)
8163 (treated-type
8164 (or (not type)
8165 (catch 'found
8166 (let ((list gnus-article-treat-types))
8167 (while list
8168 (when (string-match (pop list) type)
8169 (throw 'found t)))))))
8170 (highlightp (gnus-visual-p 'article-highlight 'highlight))
8171 val elem)
8172 (gnus-run-hooks 'gnus-part-display-hook)
8173 (dolist (elem alist)
8174 (setq val
8175 (save-excursion
8176 (when (gnus-buffer-live-p gnus-summary-buffer)
8177 (set-buffer gnus-summary-buffer))
8178 (symbol-value (car elem))))
8179 (when (and (or (consp val)
8180 treated-type)
8181 (gnus-treat-predicate val)
8182 (or (not (get (car elem) 'highlight))
8183 highlightp))
8184 (save-restriction
8185 (funcall (cadr elem)))))))
8187 ;; Dynamic variables.
8188 (defvar part-number)
8189 (defvar total-parts)
8190 (defvar type)
8191 (defvar condition)
8192 (defvar length)
8194 (defun gnus-treat-predicate (val)
8195 (cond
8196 ((null val)
8197 nil)
8198 (condition
8199 (eq condition val))
8200 ((and (listp val)
8201 (stringp (car val)))
8202 (apply 'gnus-or (mapcar `(lambda (s)
8203 (string-match s ,(or gnus-newsgroup-name "")))
8204 val)))
8205 ((listp val)
8206 (let ((pred (pop val)))
8207 (cond
8208 ((eq pred 'or)
8209 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
8210 ((eq pred 'and)
8211 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
8212 ((eq pred 'not)
8213 (not (gnus-treat-predicate (car val))))
8214 ((eq pred 'typep)
8215 (equal (car val) type))
8216 (t
8217 (error "%S is not a valid predicate" pred)))))
8218 ((eq val t)
8219 t)
8220 ((eq val 'head)
8221 nil)
8222 ((eq val 'first)
8223 (eq part-number 1))
8224 ((eq val 'last)
8225 (eq part-number total-parts))
8226 ((numberp val)
8227 (< length val))
8228 (t
8229 (error "%S is not a valid value" val))))
8231 (defun gnus-article-encrypt-body (protocol &optional n)
8232 "Encrypt the article body."
8233 (interactive
8234 (list
8235 (or gnus-article-encrypt-protocol
8236 (completing-read "Encrypt protocol: "
8237 gnus-article-encrypt-protocol-alist
8238 nil t))
8239 current-prefix-arg))
8240 ;; User might hit `K E' instead of `K e', so prompt once.
8241 (when (and gnus-article-encrypt-protocol
8242 gnus-novice-user)
8243 (unless (gnus-y-or-n-p "Really encrypt article(s)? ")
8244 (error "Encrypt aborted.")))
8245 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
8246 (unless func
8247 (error "Can't find the encrypt protocol %s" protocol))
8248 (if (member gnus-newsgroup-name '("nndraft:delayed"
8249 "nndraft:drafts"
8250 "nndraft:queue"))
8251 (error "Can't encrypt the article in group %s"
8252 gnus-newsgroup-name))
8253 (gnus-summary-iterate n
8254 (with-current-buffer gnus-summary-buffer
8255 (let ((mail-parse-charset gnus-newsgroup-charset)
8256 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
8257 (summary-buffer gnus-summary-buffer)
8258 references point)
8259 (gnus-set-global-variables)
8260 (when (gnus-group-read-only-p)
8261 (error "The current newsgroup does not support article encrypt"))
8262 (gnus-summary-show-article t)
8263 (setq references
8264 (or (mail-header-references gnus-current-headers) ""))
8265 (set-buffer gnus-article-buffer)
8266 (let* ((inhibit-read-only t)
8267 (headers
8268 (mapcar (lambda (field)
8269 (and (save-restriction
8270 (message-narrow-to-head)
8271 (goto-char (point-min))
8272 (search-forward field nil t))
8273 (prog2
8274 (message-narrow-to-field)
8275 (buffer-string)
8276 (delete-region (point-min) (point-max))
8277 (widen))))
8278 '("Content-Type:" "Content-Transfer-Encoding:"
8279 "Content-Disposition:"))))
8280 (message-narrow-to-head)
8281 (message-remove-header "MIME-Version")
8282 (goto-char (point-max))
8283 (setq point (point))
8284 (insert (apply 'concat headers))
8285 (widen)
8286 (narrow-to-region point (point-max))
8287 (let ((message-options message-options))
8288 (message-options-set 'message-sender user-mail-address)
8289 (message-options-set 'message-recipients user-mail-address)
8290 (message-options-set 'message-sign-encrypt 'not)
8291 (funcall func))
8292 (goto-char (point-min))
8294 (widen)
8295 (gnus-summary-edit-article-done
8296 references nil summary-buffer t))
8297 (when gnus-keep-backlog
8298 (gnus-backlog-remove-article
8299 (car gnus-article-current) (cdr gnus-article-current)))
8300 (when (get-buffer gnus-original-article-buffer)
8301 (with-current-buffer gnus-original-article-buffer
8302 (setq gnus-original-article nil)))
8303 (when gnus-use-cache
8304 (gnus-cache-update-article
8305 (car gnus-article-current) (cdr gnus-article-current))))))))
8308 "The following specs can be used:
8309 %t The security MIME type
8310 %i Additional info
8311 %d Details
8312 %D Details if button is pressed")
8315 "The following specs can be used:
8316 %t The security MIME type
8317 %i Additional info
8318 %d Details
8319 %D Details if button is pressed")
8321 (defvar gnus-mime-security-button-line-format-alist
8322 '((?t gnus-tmp-type ?s)
8323 (?i gnus-tmp-info ?s)
8324 (?d gnus-tmp-details ?s)
8325 (?D gnus-tmp-pressed-details ?s)))
8327 (defvar gnus-mime-security-button-commands
8329 (undefined "v")
8330 (undefined "t")
8331 (undefined "C")
8332 (gnus-mime-security-save-part "o" "Save...")
8333 (undefined "\C-o")
8334 (undefined "r")
8335 (undefined "d")
8336 (undefined "c")
8337 (undefined "i")
8338 (undefined "E")
8339 (undefined "e")
8340 (undefined "p")
8341 (gnus-mime-security-pipe-part "|" "Pipe To Command...")
8342 (undefined ".")))
8344 (defvar gnus-mime-security-button-map
8345 (let ((map (make-sparse-keymap)))
8346 (define-key map gnus-mouse-2 'gnus-article-push-button)
8347 (define-key map gnus-down-mouse-3 'gnus-mime-security-button-menu)
8348 (dolist (c gnus-mime-security-button-commands)
8349 (define-key map (cadr c) (car c)))
8350 map))
8352 (easy-menu-define
8353 gnus-mime-security-button-menu gnus-mime-security-button-map
8354 "Security button menu."
8355 `("Security Part"
8356 ,@(delq nil
8357 (mapcar (lambda (c)
8358 (unless (eq (car c) 'undefined)
8359 (vector (caddr c) (car c) :active t)))
8360 gnus-mime-security-button-commands))))
8362 (defun gnus-mime-security-button-menu (event prefix)
8363 "Construct a context-sensitive menu of security commands."
8365 (save-window-excursion
8366 (let ((pos (event-start event)))
8367 (select-window (posn-window pos))
8368 (goto-char (posn-point pos))
8369 (gnus-article-check-buffer)
8370 (popup-menu gnus-mime-security-button-menu nil prefix))))
8372 (defvar gnus-mime-security-details-buffer nil)
8374 (defvar gnus-mime-security-button-pressed nil)
8376 (defvar gnus-mime-security-show-details-inline t
8377 "If non-nil, show details in the article buffer.")
8379 (defun gnus-mime-security-verify-or-decrypt (handle)
8380 (mm-remove-parts (cdr handle))
8381 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
8382 point (inhibit-read-only t))
8383 (if region
8384 (goto-char (car region)))
8385 (setq point (point))
8386 (with-current-buffer (mm-handle-multipart-original-buffer handle)
8387 (let* ((mm-verify-option 'known)
8388 (mm-decrypt-option 'known)
8389 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
8390 (unless (eq nparts (cdr handle))
8391 (mm-destroy-parts (cdr handle))
8392 (setcdr handle nparts))))
8393 (gnus-mime-display-security handle)
8394 (when region
8395 (delete-region (point) (cdr region))
8396 (set-marker (car region) nil)
8397 (set-marker (cdr region) nil))
8398 (goto-char point)))
8400 (defun gnus-mime-security-show-details (handle)
8401 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
8402 (if (not details)
8403 (gnus-message 5 "No details.")
8404 (if gnus-mime-security-show-details-inline
8405 (let ((gnus-mime-security-button-pressed
8406 (not (get-text-property (point) 'gnus-mime-details)))
8407 (gnus-mime-security-button-line-format
8408 (get-text-property (point) 'gnus-line-format))
8409 (inhibit-read-only t))
8410 (forward-char -1)
8411 (while (eq (get-text-property (point) 'gnus-line-format)
8412 gnus-mime-security-button-line-format)
8413 (forward-char -1))
8414 (forward-char)
8415 (save-restriction
8416 (narrow-to-region (point) (point))
8417 (gnus-insert-mime-security-button handle))
8418 (delete-region (point)
8419 (or (text-property-not-all
8420 (point) (point-max)
8421 'gnus-line-format
8422 gnus-mime-security-button-line-format)
8423 (point-max))))
8424 ;; Not inlined.
8425 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
8426 (with-current-buffer gnus-mime-security-details-buffer
8427 (erase-buffer)
8428 t)
8429 (setq gnus-mime-security-details-buffer
8430 (gnus-get-buffer-create "*MIME Security Details*")))
8431 (with-current-buffer gnus-mime-security-details-buffer
8432 (insert details)
8433 (goto-char (point-min)))
8434 (pop-to-buffer gnus-mime-security-details-buffer)))))
8436 (defun gnus-mime-security-press-button (handle)
8437 (save-excursion
8438 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8439 (gnus-mime-security-show-details handle)
8440 (gnus-mime-security-verify-or-decrypt handle))))
8442 (defun gnus-insert-mime-security-button (handle &optional displayed)
8443 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
8444 (gnus-tmp-type
8445 (concat
8446 (or (nth 2 (assoc protocol mm-verify-function-alist))
8447 (nth 2 (assoc protocol mm-decrypt-function-alist))
8448 "Unknown")
8449 (if (equal (car handle) "multipart/signed")
8450 " Signed" " Encrypted")
8451 " Part"))
8452 (gnus-tmp-info
8453 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8454 "Undecided"))
8455 (gnus-tmp-details
8456 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
8457 gnus-tmp-pressed-details
8458 b e)
8459 (setq gnus-tmp-details
8460 (if gnus-tmp-details
8462 ""))
8463 (setq gnus-tmp-pressed-details
8464 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
8465 (unless (bolp)
8467 (setq b (point))
8468 (gnus-eval-format
8469 gnus-mime-security-button-line-format
8470 gnus-mime-security-button-line-format-alist
8471 `(keymap ,gnus-mime-security-button-map
8472 gnus-callback gnus-mime-security-press-button
8473 gnus-line-format ,gnus-mime-security-button-line-format
8474 gnus-mime-details ,gnus-mime-security-button-pressed
8475 article-type annotation
8476 gnus-data ,handle))
8477 (setq e (if (bolp)
8478 ;; Exclude a newline.
8479 (1- (point))
8480 (point)))
8481 (when gnus-article-button-face
8482 (gnus-overlay-put (gnus-make-overlay b e nil t)
8483 'face gnus-article-button-face))
8484 (widget-convert-button
8485 'link b e
8486 :mime-handle handle
8487 :action 'gnus-widget-press-button
8488 :button-keymap gnus-mime-security-button-map
8489 :help-echo
8490 (lambda (widget/window &optional overlay pos)
8491 ;; Needed to properly clear the message due to a bug in
8492 ;; wid-edit (XEmacs only).
8493 (when (boundp 'help-echo-owns-message)
8494 (setq help-echo-owns-message t))
8495 (format
8496 "%S: show detail; %S: more options"
8497 (aref gnus-mouse-2 0)
8498 (aref gnus-down-mouse-3 0))))))
8500 (defun gnus-mime-display-security (handle)
8501 (save-restriction
8502 (narrow-to-region (point) (point))
8503 (unless (gnus-unbuttonized-mime-type-p (car handle))
8504 (gnus-insert-mime-security-button handle))
8505 (gnus-mime-display-part (cadr handle))
8506 (unless (bolp)
8508 (unless (gnus-unbuttonized-mime-type-p (car handle))
8509 (let ((gnus-mime-security-button-line-format
8510 gnus-mime-security-button-end-line-format))
8511 (gnus-insert-mime-security-button handle)))
8512 (mm-set-handle-multipart-parameter
8513 handle 'gnus-region
8514 (cons (set-marker (make-marker) (point-min))
8515 (set-marker (make-marker) (point-max))))
8516 (goto-char (point-max))))
8518 (defun gnus-mime-security-run-function (function)
8519 "Run FUNCTION with the security part under point."
8520 (gnus-article-check-buffer)
8521 (let ((data (get-text-property (point) 'gnus-data))
8522 buffer handle)
8523 (when (and (stringp (car-safe data))
8524 (setq buffer (mm-handle-multipart-original-buffer data))
8525 (setq handle (cadr data)))
8526 (if (bufferp (mm-handle-buffer handle))
8527 (progn
8528 (setq handle (cons buffer (copy-sequence (cdr handle))))
8529 (mm-handle-set-undisplayer handle nil))
8530 (setq handle (mm-make-handle
8531 buffer
8532 (mm-handle-multipart-ctl-parameter handle 'protocol)
8533 nil nil nil nil nil nil)))
8534 (funcall function handle))))
8536 (defun gnus-mime-security-save-part ()
8537 "Save the security part under point."
8538 (interactive)
8539 (gnus-mime-security-run-function 'mm-save-part))
8541 (defun gnus-mime-security-pipe-part ()
8542 "Pipe the security part under point to a process."
8543 (interactive)
8544 (gnus-mime-security-run-function 'mm-pipe-part))
8546 (gnus-ems-redefine)
8548 (provide 'gnus-art)
8550 (run-hooks 'gnus-art-load-hook)
8552 ;; arch-tag: 2654516f-6279-48f9-a83b-05c1fa450c33
8553 ;;; gnus-art.el ends here