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1 ;;; gnus-art.el --- article mode commands for Gnus
3 ;; Copyright (C) 1996-2011 Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
6 ;; Keywords: news
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software: you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation, either version 3 of the License, or
13 ;; (at your option) any later version.
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
23 ;;; Commentary:
25 ;;; Code:
27 ;; For Emacs <22.2 and XEmacs.
58 "Article display."
63 "Treating article parts."
68 "Hiding article parts."
73 "Article highlighting."
79 "Article signatures."
84 "Article headers."
89 "Special commands on articles."
94 "Fontisizing articles."
99 "Saving articles."
104 "Worshiping the MIME wonder."
109 "Pushable buttons in the article buffer."
114 "Other article options."
163 "*All headers that start with this regexp will be hidden.
164 This variable can also be a list of regexps of headers to be ignored.
165 If `gnus-visible-headers' is non-nil, this variable will be ignored."
167 regexp
172 "^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:"
173 "*All headers that do not match this regexp will be hidden.
174 This variable can also be a list of regexp of headers to remain visible.
175 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
182 regexp)
184 regexp)
190 "*This variable is a list of regular expressions.
191 If it is non-nil, headers that match the regular expressions will
192 be placed first in the article buffer in the sequence specified by
193 this list."
198 "Headers that are only to be displayed if they have interesting data.
199 Possible values in this list are:
201 'empty Headers with no content.
202 'newsgroups Newsgroup identical to Gnus group.
203 'to-address To identical to To-address.
204 'to-list To identical to To-list.
205 'cc-list CC identical to To-list.
206 'followup-to Followup-to identical to Newsgroups.
207 'reply-to Reply-to identical to From.
208 'date Date less than four days old.
209 'long-to To and/or Cc longer than 1024 characters.
210 'many-to Multiple To and/or Cc."
224 "Skip over text that is not worth reading.
225 By default, if you set this t, then Gnus will display citations and
226 signatures, but will never scroll down to show you a page consisting
227 only of boring text. Boring text is controlled by
228 `gnus-article-boring-faces'."
234 "Regexp matching signature separator.
235 This can also be a list of regexps. In that case, it will be checked
236 from head to tail looking for a separator. Searches will be done from
237 the end of the buffer."
244 "Provide a limit to what is considered a signature.
245 If it is a number, no signature may not be longer (in characters) than
246 that number. If it is a floating point number, no signature may be
247 longer (in lines) than that number. If it is a function, the function
248 will be called without any parameters, and if it returns nil, there is
249 no signature in the buffer. If it is a string, it will be used as a
250 regexp. If it matches, the text in question is not a signature.
252 This can also be a list of the above values."
256 function
261 "Property list to use for hiding text."
265 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
266 ;; frames in a session.
271 'gnus-display-x-face-in-from
274 'gnus-display-x-face-in-from
275 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | \
277 "*String or function to be executed to display an X-Face header.
278 If it is a string, the command will be executed in a sub-shell
279 asynchronously. The compressed face will be piped to this command."
282 function)
288 "Regexp matching posters whose face shouldn't be shown automatically."
293 "Banner alist for stripping.
294 For example,
295 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
301 banner
302 :variable-document
303 "Alist of regexps (to match group names) and banner."
304 :variable-group gnus-article-washing
305 :parameter-type
307 :value nil
310 regexp
312 :parameter-document
313 "If non-nil, specify how to remove `banners' from articles.
315 Symbol `signature' means to remove signatures delimited by
316 `gnus-signature-separator'. Any other symbol is used to look up a
317 regular expression to match the banner in `gnus-article-banner-alist'.
318 A string is used as a regular expression to match the banner
322 "Alist of mail addresses and banners.
323 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
324 to match a mail address in the From: header, BANNER is one of a symbol
325 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
326 If ADDRESS matches author's mail address, it will remove things like
327 advertisements. For example:
330 "
337 regexp
352 2
355 value)))
363 pattern)
368 value))))
386 types))
388 ;; several times seen it triggered by normal text. --Stef
389 ;; Miles suggests that this form is sometimes used but for italics,
390 ;; so maybe we should map it to `italic'.
391 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
392 ;; 2 3 gnus-emphasis-strikethru)
395 "*Alist that says how to fontify certain phrases.
396 Each item looks like this:
400 The first element is a regular expression to be matched. The second
401 is a number that says what regular expression grouping used to find
402 the entire emphasized word. The third is a number that says what
403 regexp grouping should be displayed and highlighted. The fourth
404 is the face used for highlighting."
405 :type
412 :value-create
420 widget
421 :value
424 regexp
427 face)
435 face)))
441 value)))
445 "A regexp to describe whitespace which should not be emphasized.
447 The former avoids underlining of leading and trailing whitespace,
448 and the latter avoids underlining any whitespace at all."
454 "Face used for displaying strong emphasized text (*word*)."
458 "Face used for displaying italic emphasized text (/word/)."
462 "Face used for displaying underlined emphasized text (_word_)."
466 "Face used for displaying underlined bold emphasized text (_*word*_)."
470 "Face used for displaying underlined italic emphasized text (_/word/_)."
474 "Face used for displaying bold italic emphasized text (/*word*/)."
479 "Face used for displaying underlined bold italic emphasized text.
480 Example: (_/*word*/_)."
486 "Face used for displaying strike-through text (-word-)."
491 "Face used for displaying highlighted words."
495 "Format for display of Date headers in article bodies.
496 See `format-time-string' for the possible values.
498 The variable can also be function, which should return a complete Date
499 header. The function is called with one argument, the time, which can
500 be fed to `format-time-string'."
506 "*If non-nil, don't remove any headers before saving.
507 This will be overridden by the `:headers' property that the symbol of
508 the saver function, which is specified by `gnus-default-article-saver',
509 might have."
514 "*This variable says how much prompting is to be done when saving articles.
515 If it is nil, no prompting will be done, and the articles will be
516 saved to the default files. If this variable is `always', each and
517 every article that is saved will be preceded by a prompt, even when
518 saving large batches of articles. If this variable is neither nil not
519 `always', there the user will be prompted once for a file name for
520 each invocation of the saving commands."
527 "Headers to keep if `gnus-save-all-headers' is nil.
528 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
529 If that variable is nil, however, all headers that match this regexp
530 will be kept while the rest will be deleted before saving. This and
531 `gnus-save-all-headers' will be overridden by the `:headers' property
532 that the symbol of the saver function, which is specified by
533 `gnus-default-article-saver', might have."
537 ;; Note that "Rmail format" is mbox since Emacs 23, but Babyl before.
539 "A function to save articles in your favourite format.
540 The function will be called by way of the `gnus-summary-save-article'
541 command, and friends such as `gnus-summary-save-article-rmail'.
543 Gnus provides the following functions:
545 * gnus-summary-save-in-rmail (Rmail format)
546 * gnus-summary-save-in-mail (Unix mail format)
547 * gnus-summary-save-in-folder (MH folder)
548 * gnus-summary-save-in-file (article format)
549 * gnus-summary-save-body-in-file (article body)
550 * gnus-summary-save-in-vm (use VM's folder format)
551 * gnus-summary-write-to-file (article format -- overwrite)
552 * gnus-summary-write-body-to-file (article body -- overwrite)
553 * gnus-summary-save-in-pipe (article format)
555 The symbol of each function may have the following properties:
557 * :decode
558 The value non-nil means save decoded articles. This is meaningful
559 only with `gnus-summary-save-in-file', `gnus-summary-save-body-in-file',
560 `gnus-summary-write-to-file', `gnus-summary-write-body-to-file', and
561 `gnus-summary-save-in-pipe'.
563 * :function
564 The value specifies an alternative function which appends, not
565 overwrites, articles to a file. This implies that when saving many
566 articles at a time, `gnus-prompt-before-saving' is bound to t and all
567 articles are saved in a single file. This is meaningful only with
568 `gnus-summary-write-to-file' and `gnus-summary-write-body-to-file'.
570 * :headers
571 The value specifies the symbol of a variable of which the value
572 specifies headers to be saved. If it is omitted,
573 `gnus-save-all-headers' and `gnus-saved-headers' control what
574 headers should be saved."
592 "Coding system used to save decoded articles to a file.
594 The recommended coding systems are `utf-8', `iso-2022-7bit' and so on,
595 which can safely encode any characters in text. This is used by the
596 commands including:
598 * gnus-summary-save-article-file
599 * gnus-summary-save-article-body-file
600 * gnus-summary-write-article-file
601 * gnus-summary-write-article-body-file
603 and the functions to which you may set `gnus-default-article-saver':
605 * gnus-summary-save-in-file
606 * gnus-summary-save-body-in-file
607 * gnus-summary-write-to-file
608 * gnus-summary-write-body-to-file
610 Those commands and functions save just text displayed in the article
611 buffer to a file if the value of this variable is non-nil. Note that
612 buttonized MIME parts will be lost in a saved file in that case.
613 Otherwise, raw articles will be saved."
628 "A function generating a file name to save articles in Rmail format.
629 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
634 "A function generating a file name to save articles in Unix mail format.
635 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
640 "A function generating a file name to save articles in MH folder.
641 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
646 "A function generating a file name to save articles in article format.
647 The function is called with NEWSGROUP, HEADERS, and optional
648 LAST-FILE."
655 "*Variable used to suggest where articles are to be saved.
656 For instance, if you would like to save articles related to Gnus in
658 you could set this variable to something like:
663 This variable is an alist where the key is the match and the
664 value is a list of possible files to save in if the match is
665 non-nil.
667 If the match is a string, it is used as a regexp match on the
668 article. If the match is a symbol, that symbol will be funcalled
669 from the buffer of the article to be saved with the newsgroup as the
670 parameter. If it is a list, it will be evaled in the same buffer.
672 If this form or function returns a string, this string will be used as a
673 possible file name; and if it returns a non-nil list, that list will be
674 used as possible file names."
681 "*Regexp describing what to use as article page delimiters.
683 beginning of a line."
688 "*The format specification for the article mode line.
689 See `gnus-summary-mode-line-format' for a closer description.
691 The following additional specs are available:
693 %w The article washing status.
694 %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
778 "Face used for displaying from headers."
781 ;; backward-compatibility alias
794 "Face used for displaying subject headers."
797 ;; backward-compatibility alias
810 "Face used for displaying newsgroups headers.
811 In the default setup this face is only used for crossposted
812 articles."
815 ;; backward-compatibility alias
828 "Face used for displaying header names."
831 ;; backward-compatibility alias
846 ;; backward-compatibility alias
855 "*Controls highlighting of article headers.
857 An alist of the form (HEADER NAME CONTENT).
859 HEADER is a regular expression which should match the name of a
860 header and NAME and CONTENT are either face names or nil.
862 The name of each header field will be displayed using the face
863 specified by the first element in the list where HEADER matches
864 the header name and NAME is non-nil. Similarly, the content will
865 be displayed by the first non-nil matching CONTENT face."
880 "Alist of image types and properties applied to Face and X-Face images.
881 Here are examples:
883 ;; Specify the altitude of Face images in the From header.
884 \(setq gnus-face-properties-alist
885 '((pbm . (:face gnus-x-face :ascent 80))
886 (png . (:ascent 80))))
888 ;; Show Face images as pressed buttons.
889 \(setq gnus-face-properties-alist
890 '((pbm . (:face gnus-x-face :relief -2))
891 (png . (:relief -2))))
893 See the manual for the valid properties for various image types.
894 Currently, `pbm' is used for X-Face images and `png' is used for Face
895 images in Emacs. Only the `:face' property is effective on the `xface'
896 image type in XEmacs if it is built with the libcompface library."
903 article-decode-group-name article-decode-idna-rhs)
904 "*Hook run to decode charsets in articles."
909 "Function to display MIME articles."
942 "List of MIME types that should be ignored by Gnus."
948 "List of MIME types that should not be given buttons when rendered inline.
949 See also `gnus-buttonized-mime-types' which may override this variable.
950 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
956 "List of MIME types that should be given buttons when rendered inline.
957 If set, this variable overrides `gnus-unbuttonized-mime-types'.
958 To see e.g. security buttons you could set this to
960 this list to display radio buttons that allow you to choose one of two
961 media types those mails include. See also `mm-discouraged-alternatives'.
962 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
968 "If non-nil, all MIME parts get buttons.
969 When nil (the default value), then some MIME parts do not get buttons,
970 as described by the variables `gnus-buttonized-mime-types' and
971 `gnus-unbuttonized-mime-types'."
977 "String used to delimit header and body.
978 This variable is used by `gnus-article-treat-body-boundary' which can
979 be controlled by `gnus-treat-body-boundary'."
983 string))
987 "Defines the location of the faces database.
988 For information on obtaining this database of pretty pictures, please
989 see http://www.cs.indiana.edu/picons/ftp/index.html"
998 "Say whether picons are installed on your machine."
1003 installed))
1006 "Function called with a MIME handle as the argument.
1007 This is meant for people who want to do something automatic based
1008 on parts -- for instance, adding Vcard info to a database."
1011 function))
1014 "An alist of MIME types to functions to display them."
1020 "A list of Date header formats to display.
1021 Valid formats are `ut' (universal time), `local' (local time
1022 zone), `english' (readable English), `lapsed' (elapsed time),
1023 `combined-lapsed' (both the original date and the elapsed time),
1024 `original' (the original date header), `iso8601' (ISO8601
1025 format), and `user-defined' (a user-defined format defined by the
1026 `gnus-article-time-format' variable).
1028 You have as many date headers as you want in the article buffer.
1029 Some of these headers are updated automatically. See
1030 `gnus-article-update-date-headers' for details."
1044 "A number that says how often to update the date header (in seconds).
1045 If nil, don't update it at all."
1050 integer))
1053 "Function called with a MIME handle as the argument.
1054 This is meant for people who want to view first matched part.
1055 For `undisplayed-alternative' (default), the first undisplayed
1056 part or alternative part is used. For `undisplayed', the first
1057 undisplayed part is used. For a function, the first part which
1058 the function return t is used. For nil, the first part is
1059 used."
1082 "An alist of actions that run on the MIME attachment."
1088 "Advance to next MIME part when deleting or stripping parts.
1090 When 0, point will be placed on the same part as before. When
1091 positive (negative), move point forward (backwards) this many
1092 parts. When nil, redisplay article."
1098 integer))
1100 ;;;
1101 ;;; The treatment variables
1102 ;;;
1129 "Highlight the signature.
1130 Valid values are nil, t, `head', `first', `last', an integer or a
1131 predicate. See Info node `(gnus)Customizing Articles'."
1138 "Add buttons.
1139 Valid values are nil, t, `head', `first', `last', an integer or a
1140 predicate. See Info node `(gnus)Customizing Articles'."
1147 "Add buttons to the head.
1148 Valid values are nil, t, `head', `first', `last', an integer or a
1149 predicate. See Info node `(gnus)Customizing Articles'."
1156 "Display dates according to the `gnus-article-date-headers' variable.
1157 Valid values are nil, t, `head', `first', `last', an integer or a
1158 predicate. See Info node `(gnus)Customizing Articles'."
1165 "Emphasize text.
1166 Valid values are nil, t, `head', `first', `last', an integer or a
1167 predicate. See Info node `(gnus)Customizing Articles'."
1174 "Remove carriage returns.
1175 Valid values are nil, t, `head', `first', `last', an integer or a
1176 predicate. See Info node `(gnus)Customizing Articles'."
1183 "Remove newlines from within URLs.
1184 Valid values are nil, t, `head', `first', `last', an integer or a
1185 predicate. See Info node `(gnus)Customizing Articles'."
1192 "Remove leading whitespace in headers.
1193 Valid values are nil, t, `head', `first', `last', an integer or a
1194 predicate. See Info node `(gnus)Customizing Articles'."
1201 "Hide headers.
1202 Valid values are nil, t, `head', `first', `last', an integer or a
1203 predicate. See Info node `(gnus)Customizing Articles'."
1209 "Hide boring headers.
1210 Valid values are nil, t, `head', `first', `last', an integer or a
1211 predicate. See Info node `(gnus)Customizing Articles'."
1217 "Hide the signature.
1218 Valid values are nil, t, `head', `first', `last', an integer or a
1219 predicate. See Info node `(gnus)Customizing Articles'."
1225 "Fill the article.
1226 Valid values are nil, t, `head', `first', `last', an integer or a
1227 predicate. See Info node `(gnus)Customizing Articles'."
1233 "Hide cited text.
1234 Valid values are nil, t, `head', `first', `last', an integer or a
1235 predicate. See Info node `(gnus)Customizing Articles'."
1241 "Hide cited text.
1242 Valid values are nil, t, `head', `first', `last', an integer or a
1243 predicate. See Info node `(gnus)Customizing Articles'."
1249 "Strip list identifiers from `gnus-list-identifiers`.
1250 Valid values are nil, t, `head', `first', `last', an integer or a
1251 predicate. See Info node `(gnus)Customizing Articles'."
1258 list-identifier
1259 :variable-document
1260 "Alist of regexps and correspondent identifiers."
1261 :variable-group gnus-article-washing
1262 :parameter-type
1264 :value nil
1266 regexp
1268 :parameter-document
1269 "If non-nil, specify how to remove `identifiers' from articles' subject.
1271 Any symbol is used to look up a regular expression to match the
1272 banner in `gnus-list-identifiers'. A string is used as a regular
1279 "Strip PEM signatures.
1280 Valid values are nil, t, `head', `first', `last', an integer or a
1281 predicate. See Info node `(gnus)Customizing Articles'."
1287 "Strip banners from articles.
1288 The banner to be stripped is specified in the `banner' group parameter.
1289 Valid values are nil, t, `head', `first', `last', an integer or a
1290 predicate. See Info node `(gnus)Customizing Articles'."
1296 "Highlight the headers.
1297 Valid values are nil, t, `head', `first', `last', an integer or a
1298 predicate. See Info node `(gnus)Customizing Articles'."
1305 "Highlight cited text.
1306 Valid values are nil, t, `head', `first', `last', an integer or a
1307 predicate. See Info node `(gnus)Customizing Articles'."
1314 "Strip the X-No-Archive header line from the beginning of the body.
1315 Valid values are nil, t, `head', `first', `last', an integer or a
1316 predicate. See Info node `(gnus)Customizing Articles'."
1323 "Strip trailing blank lines.
1324 Valid values are nil, t, `head', `first', `last', an integer or a
1325 predicate. See Info node `(gnus)Customizing Articles'.
1327 When set to t, it also strips trailing blanks in all MIME parts.
1328 Consider to use `last' instead."
1334 "Strip leading blank lines.
1335 Valid values are nil, t, `head', `first', `last', an integer or a
1336 predicate. See Info node `(gnus)Customizing Articles'.
1338 When set to t, it also strips trailing blanks in all MIME parts."
1344 "Strip multiple blank lines.
1345 Valid values are nil, t, `head', `first', `last', an integer or a
1346 predicate. See Info node `(gnus)Customizing Articles'."
1352 "Unfold folded header lines.
1353 Valid values are nil, t, `head', `first', `last', an integer or a
1354 predicate. See Info node `(gnus)Customizing Articles'."
1361 "If non-nil, allow unfolding headers even if the header is long.
1362 If it is a regexp, only long headers matching this regexp are unfolded.
1363 If it is t, all long headers are unfolded.
1365 This variable has no effect if `gnus-treat-unfold-headers' is nil."
1373 "Fold headers.
1374 Valid values are nil, t, `head', `first', `last', an integer or a
1375 predicate. See Info node `(gnus)Customizing Articles'."
1382 "Fold the Newsgroups and Followup-To headers.
1383 Valid values are nil, t, `head', `first', `last', an integer or a
1384 predicate. See Info node `(gnus)Customizing Articles'."
1391 "Treat overstrike highlighting.
1392 Valid values are nil, t, `head', `first', `last', an integer or a
1393 predicate. See Info node `(gnus)Customizing Articles'."
1400 "Treat ANSI SGR control sequences.
1401 Valid values are nil, t, `head', `first', `last', an integer or a
1402 predicate. See Info node `(gnus)Customizing Articles'."
1418 ;; shell-command-to-string may signal an error, e.g. if
1419 ;; shell-file-name is not found.
1422 "Display X-Face headers.
1423 Valid values are nil and `head'.
1424 See Info node `(gnus)Customizing Articles' and Info node
1425 `(gnus)X-Face' for details."
1430 :type gnus-article-treat-head-custom
1433 symbol
1435 value)
1438 ** gnus-treat-display-xface is an obsolete variable;\
1443 ** gnus-treat-display-xface is an obsolete variable;\
1447 value)))))
1454 "Display Face headers.
1455 Valid values are nil, t, `head', `first', `last', an integer or a
1456 predicate. See Info node `(gnus)Customizing Articles' and Info
1457 node `(gnus)Face' for details."
1466 "Display smileys.
1467 Valid values are nil, t, `head', `first', `last', an integer or a
1468 predicate. See Info node `(gnus)Customizing Articles' and Info
1469 node `(gnus)Smileys' for details."
1481 "Display picons in the From header.
1482 Valid values are nil, t, `head', `first', `last', an integer or a
1483 predicate. See Info node `(gnus)Customizing Articles' and Info
1484 node `(gnus)Picons' for details."
1497 "Display picons in To and Cc headers.
1498 Valid values are nil, t, `head', `first', `last', an integer or a
1499 predicate. See Info node `(gnus)Customizing Articles' and Info
1500 node `(gnus)Picons' for details."
1513 "Display picons in the Newsgroups and Followup-To headers.
1514 Valid values are nil, t, `head', `first', `last', an integer or a
1515 predicate. See Info node `(gnus)Customizing Articles' and Info
1516 node `(gnus)Picons' for details."
1526 "Display gravatars in the From header.
1527 Valid values are nil, t, `head', `first', `last', an integer or a
1528 predicate. See Info node `(gnus)Customizing Articles' and Info
1529 node `(gnus)Gravatars' for details."
1539 "Display gravatars in To and Cc headers.
1540 Valid values are nil, t, `head', `first', `last', an integer or a
1541 predicate. See Info node `(gnus)Customizing Articles' and Info
1542 node `(gnus)Gravatars' for details."
1553 gnus-treat-mail-picon
1554 gnus-treat-from-picon
1555 gnus-treat-from-gravatar
1556 gnus-treat-mail-gravatar)
1557 ;; If there's much decoration, the user might prefer a boundery.
1558 'head
1559 nil)
1560 "Draw a boundary at the end of the headers.
1561 Valid values are nil and `head'.
1562 See Info node `(gnus)Customizing Articles' for details."
1569 "Capitalize sentence-starting words.
1570 Valid values are nil, t, `head', `first', `last', an integer or a
1571 predicate. See Info node `(gnus)Customizing Articles'."
1578 "Format as HTML.
1579 Valid values are nil, t, `head', `first', `last', an integer or a
1580 predicate. See Info node `(gnus)Customizing Articles'."
1587 "Fill long lines.
1588 Valid values are nil, t, `head', `first', `last', an integer or a
1589 predicate. See Info node `(gnus)Customizing Articles'."
1596 "Verify X-PGP-Sig.
1597 To automatically treat X-PGP-Sig, set it to head.
1598 Valid values are nil, t, `head', `first', `last', an integer or a
1599 predicate. See Info node `(gnus)Customizing Articles'."
1609 ;; Set to nil if more than one protocol added to
1610 ;; gnus-article-encrypt-protocol-alist.
1612 "The protocol used for encrypt articles.
1621 "Whether IDNA decoding of headers is used when viewing messages.
1622 This requires GNU Libidn, and by default only enabled if it is found."
1628 "If non-nil, allow scrolling the article buffer even when there no more text."
1634 "Non-nil means inhibit displaying of images inline in the article body."
1640 "Images that have URLs matching this regexp will be blocked.
1641 This can also be a function to be evaluated. If so, it will be
1642 called with the group name as the parameter, and should return a
1643 regexp."
1648 ;;; Internal variables
1687 gnus-article-remove-trailing-blank-lines)
1689 gnus-article-strip-leading-blank-lines)
1691 gnus-article-strip-multiple-blank-lines)
1713 ;; This causes the citation match run O(2^n).
1714 ;; (modify-syntax-entry ?- "w" table)
1717 ;; make M-. in article buffers work for `foo' strings
1720 table)
1721 "Syntax table used in article mode buffers.
1732 ;;; Macros for dealing with the article buffer.
1756 "Go to HEADER, which is a regular expression."
1760 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
1768 "Remove hidden text properties from region between B and E."
1775 "Hide text of TYPE between B and E."
1781 "Unhide text of TYPE between B and E."
1790 "Hide text of TYPE in the current buffer."
1798 "Delete text of TYPE in the current buffer."
1802 ;; Remove MIME buttons associated with multipart/alternative parts.
1810 t))
1821 "Delete all invisible text in the current buffer."
1830 "Say whether any text of type TYPE exists in the buffer."
1834 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1842 i))
1845 "Hide unwanted headers and possibly sort them as well."
1847 ;; This function might be inhibited.
1854 ignored visible beg)
1856 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1857 ;; group parameters, so we should go to the summary buffer.
1864 gnus-ignored-headers)
1867 gnus-ignored-headers
1870 gnus-visible-headers)
1874 gnus-visible-headers
1878 ;; First we narrow to just the headers.
1880 ;; Hide any "From " lines at the beginning of (mail) articles.
1885 ;; Then treat the rest of the header lines.
1886 ;; Then we use the two regular expressions
1887 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1888 ;; select which header lines is to remain visible in the
1889 ;; article buffer.
1892 ;; Mark the rank of the header.
1904 ;; We delete the unwanted headers.
1911 "Toggle hiding of headers that aren't very interesting.
1912 If given a negative prefix, always show; if given a positive prefix,
1913 always hide."
1925 ;; Hide empty headers.
1937 ;; Hide boring Newsgroups header.
1943 gnus-newsgroup-name
1955 ;; only one address in To
1957 to-address)))
1968 ;; only one address in To
1970 to-list)))
1981 ;; only one address in CC
1983 to-list)))
1998 from reply-to
2012 ;; If date in `gnus-article-buffer' is localized
2013 ;; (`gnus-treat-date-user-defined'),
2014 ;; `days-between' might fail.
2072 "Make all header lines 40 characters long."
2075 column)
2082 gnus-article-normalized-header-length)
2086 ? )))
2095 ;; Do nothing.
2096 ))
2100 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
2101 Note that this function guesses whether a character is a sm*rtq**t* or
2102 not, so it should only be used interactively.
2104 Sm*rtq**t*s are M****s***'s unilateral extension to the
2105 iso-8859-1 character map in an attempt to provide more quoting
2107 you're expecting some kind of apostrophe or quotation mark, then
2108 try this wash."
2115 "Translate many Unicode characters into their ASCII equivalents."
2128 replace props)
2138 props)
2142 "Translate all characters in the body of the article according to FROM and TO.
2143 FROM is a string of characters to translate from; to is a string of
2144 characters to translate to."
2159 "Translate all string in the body of the article according to MAP.
2179 "Translate overstrikes into bold text."
2187 ;; We do the boldification/underlining by hiding the
2188 ;; overstrikes and putting the proper text property
2189 ;; on the letters.
2205 "Translate ANSI SGR control sequences into overlays or extents."
2213 "Unfold folded message headers.
2214 Only the headers that fit into the current window width will be
2215 unfolded."
2240 "Fold message headers."
2263 "Remove all images from the article buffer."
2272 "Show any images that are in the HTML-rendered article buffer.
2273 This only works if the article in question is HTML."
2282 start end))))))
2285 "Unfold folded message headers.
2286 Only the headers that fit into the current window width will be
2287 unfolded."
2299 "Value of `truncate-lines' in Gnus Article buffer.
2300 Valid values are nil, t, `head', `first', `last', an integer or a
2301 predicate. See Info node `(gnus)Customizing Articles'."
2304 ;; :link '(custom-manual "(gnus)Customizing Articles")
2308 "Toggle whether to fold or truncate long lines in article the buffer.
2309 If ARG is non-nil and not a number, toggle
2310 `gnus-article-truncate-lines' too. If ARG is a number, truncate
2311 long lines if and only if arg is positive."
2327 ;; In versions of Emacs 22 (CVS) before 2006-05-26,
2328 ;; `toggle-truncate-lines' needs an argument.
2332 "Place a boundary line at the end of the headers."
2351 "Fill lines that are wider than the window width."
2371 "Capitalize the first word in each sentence."
2382 "Remove trailing CRs and then translate remaining CRs into LFs."
2394 "Remove all trailing blank lines from the article."
2413 "Display any Face headers in the header."
2417 ;; When displaying parts, this function can be called several times on
2418 ;; the same article, without any intended toggle semantic (as typing `W
2419 ;; D d' would have). So face deletion must occur only when we come from
2420 ;; an interactive command, that is when the *Article* buffer is
2421 ;; read-only.
2425 face faces)
2434 ;; Check whether this face is censored.
2439 from))))
2460 "Look for an X-Face header and display it if present."
2464 ;; Delete the old process, if any.
2467 ;; See the comment in `article-display-face'.
2469 ;; We have already displayed X-Faces, so we remove them
2470 ;; instead.
2472 ;; Display X-Faces.
2474 x-faces face)
2479 ;; If type `W f', use gnus-original-article-buffer,
2480 ;; otherwise use the current buffer because displaying
2481 ;; RFC822 parts calls this function too.
2487 ;; Check whether this face is censored.
2492 from))))
2496 ;; We display the face.
2498 ;; The command is a lisp function, so we call it.
2501 ;; The command is a string, so we interpret the command
2502 ;; as a, well, command, and fork it off.
2506 "article-x-face" nil shell-file-name
2507 shell-command-switch gnus-article-x-face-command)
2508 nil)
2509 ;; Sending multiple EOFs to xv doesn't work,
2510 ;; so we only do a single external face.
2518 gnus-article-x-face-command
2522 "Decode all MIME-encoded words in the article."
2529 gnus-newsgroup-ignored-charsets)))
2533 "Decode charset-encoded text in the article.
2534 If PROMPT (the prefix), prompt for a coding system to use."
2543 gnus-newsgroup-ignored-charsets))
2544 ct cte ctl charset format)
2567 ;; The text code could have been decoded.
2578 "Remove encoded-word encoding from headers."
2585 gnus-newsgroup-ignored-charsets))
2587 end start)
2606 "Decode group names in Newsgroups, Followup-To and Xref headers."
2610 regexp)
2612 gnus-group-name-charset-group-alist)
2624 ;; XXX how to use data in article buffer?
2628 gnus-newsgroup-name method))
2635 "Decode IDNA strings in RHS in various headers in current buffer.
2636 The following headers are decoded: From:, To:, Cc:, Reply-To:,
2637 Mail-Reply-To: and Mail-Followup-To:."
2656 "Translate a quoted-printable-encoded article.
2657 If FORCE, decode the article whether it is marked as quoted-printable
2658 or not.
2659 If READ-CHARSET, ask for a coding system."
2685 "Translate a base64 article.
2686 If FORCE, decode the article whether it is marked as base64 not.
2687 If READ-CHARSET, ask for a coding system."
2719 "Translate a HZ-encoded article."
2727 "Remove the newlines that some other mailers insert into URLs."
2739 "Format an HTML article."
2750 "List of temporary files created by `gnus-article-browse-html-parts'.
2754 "What to do with temporary files from `gnus-article-browse-html-parts'.
2755 If nil, don't delete temporary files. If it is t, delete them on
2756 exit from the summary buffer. If it is the symbol `file', query
2757 on each file, if it is `ask' ask once when exiting from the
2758 summary buffer."
2766 ;; Cf. mm-postponed-undisplay-list / mm-destroy-postponed-undisplay-list.
2769 "Delete temp-files created by `gnus-article-browse-html-parts'."
2776 "Delete all %s temporary HTML file%s? "
2777 files
2779 how)))
2785 "Delete temporary HTML file(s) in directory `%s'? "
2793 ;; Also remove file from the list when not deleted or if file doesn't
2794 ;; exist anymore.
2796 gnus-article-browse-html-temp-list)
2799 "Find CID content in HANDLES and save it in a file in DIRECTORY.
2800 Return file name."
2809 cid handle directory))
2818 directory))
2824 Recurse into multiparts. The optional HEADER that should be a decoded
2826 ;; Internal function used by `gnus-article-browse-html-article'.
2828 ;; Find and show the html-parts.
2830 ;; If HTML, show it:
2842 nil)))
2854 ;; resolve cid contents
2856 cid-file)
2860 nil t)
2865 content nil)
2870 gnus-article-mime-handles)
2871 cid-dir))
2877 ;; Do we need to care for 8.3 filenames?
2879 ;; Add a meta html tag to specify charset and a header.
2897 ;; We have to examine charset one by one since
2898 ;; charset specified in parts might be different.
2902 charset)
2906 force-charset t)
2912 hcharset)))
2915 coding hcharset)))
2926 title coding))
2927 body content)
2933 title charset))
2936 content body)
2937 charset)
2938 force-charset t)))
2944 title coding))
2945 body content))
2947 body content)))
2971 content))
2986 ;; FIXME: Warn if there's an <img> tag?
2989 ;; If multipart, recurse
3004 gnus-visible-headers)))
3014 showed))
3018 Inline images embedded in a message using the cid scheme, as they are
3019 generally considered to be safe, will be processed properly.
3020 The message header is added to the beginning of every html part unless
3021 the prefix argument ARG is given.
3023 Warning: Spammers use links to images (using the http scheme) in HTML
3024 articles to verify whether you have read the message. As
3025 `gnus-article-browse-html-article' passes the HTML content to the
3027 use it for mails from trusted senders.
3029 If you always want to display HTML parts in the browser, set
3030 `mm-text-html-renderer' to nil.
3032 This command creates temporary files to pass HTML contents including
3033 images if any to the browser, and deletes them when exiting the group
3034 \(if you want)."
3035 ;; Cf. `mm-w3m-safe-url-regexp'
3040 gnus-visible-headers))
3041 ;; As we insert a <hr>, there's no need for the body boundary.
3055 parts)
3058 ;; If singlepart, enforce a list.
3062 ;; Process the list
3070 "Remove list identifies from the Subject header.
3071 The `gnus-list-identifiers' variable specifies what to do."
3083 nil t)
3091 "Toggle hiding of any PEM headers and signatures in the current article.
3092 If given a negative prefix, always show; if given a positive prefix,
3093 always hide."
3099 ;; Hide the horrendously ugly "header".
3102 nil t)
3106 end
3111 ;; Hide the trailer as well
3113 nil t)
3118 "Strip the banners specified by the `banner' group parameter and by
3119 `gnus-article-address-banner-alist'."
3128 ;; Note that the From header is decoded here, so it is
3129 ;; required that the *-extract-address-components function
3130 ;; supports non-ASCII text.
3138 from))))
3146 "Strip the banner specified by the argument."
3168 "Translate article using an online translation service."
3183 "Hide the signature in the current article.
3184 If given a negative prefix, always show; if given a positive prefix,
3185 always hide."
3197 "Strip offensive headers from bodies."
3206 "Remove all blank lines from the beginning of the article."
3217 "Narrow the buffer to the head of the message.
3218 Point is left at the beginning of the narrowed-to region."
3227 "Place point at the start of the body."
3230 ;; This variable is only bound when dealing with separate
3231 ;; MIME body parts.
3233 t)
3235 t)
3238 nil)))
3241 "Replace consecutive blank lines with one empty line."
3246 ;; First make all blank lines empty.
3252 ;; Then replace multiple empty lines with a single empty line.
3260 "Remove all white space from the beginning of the lines in the article."
3270 "Remove all white space from the end of the lines in the article."
3280 "Strip leading, trailing and multiple blank lines."
3287 "Strip all blank lines."
3297 "Narrow to the signature; return t if a signature is found, else nil."
3301 ;; Check whether we have some limits to what we consider
3302 ;; to be a signature.
3305 limit limited)
3317 limits nil)))
3320 t)))))
3323 "Search the current buffer for the signature separator.
3324 Put point at the beginning of the signature separator."
3333 seps))
3334 t
3336 nil)))
3339 "Return the current prefix arg as a number, or 0 if no prefix."
3345 "Return nil if hiding is necessary.
3346 Arg can be nil or a number. nil and positive means hide, negative
3347 means show, 0 means toggle."
3354 nil)
3357 t)
3362 t)
3363 nil)))))))
3366 "Say whether the current buffer contains hidden text of type TYPE."
3374 'hidden
3375 nil)))
3378 "Show all hidden text of type TYPE.
3379 Originally it is hide instead of DUMMY."
3383 'article-type type
3386 gnus-hidden-properties)))
3399 "Move point to the start of the next header.
3400 If the current header is a continuation header, this can be several
3401 lines forward."
3412 gnus-article-date-headers)
3413 gnus-article-date-headers)
3414 t))
3417 "Convert DATE date to TYPE in the current article.
3418 The default type is `ut'. See `gnus-article-date-headers' for
3419 possible values."
3426 pos date bface eface)
3434 ;; Delete any old Date headers.
3450 visible-date)
3462 type)))
3470 ;; Do highlighting.
3479 "Return a DATE line of TYPE."
3481 combined-lapsed))
3486 ;; Convert to the local timezone.
3489 ;; Convert to Universal Time.
3503 ;; Get the original date from the article.
3507 date)))
3508 ;; Let the user define the format.
3512 gnus-article-time-format)
3514 gnus-article-time-format)))
3518 ;; ISO 8601.
3522 "Date: "
3527 ;; Do a lapsed format.
3530 ;; A combined date/lapsed format.
3534 lapsed-string)
3536 time
3546 date-string)))
3547 ;; Display the date in proper English
3551 "Date: the "
3560 " of "
3562 " "
3564 " at "
3566 ":"
3572 ;; If the date is seriously mangled, the timezone functions are
3573 ;; liable to bug out, so we ignore all errors.
3581 num prev)
3591 ;; This is a bit convoluted, but basically we go
3592 ;; through the time units for years, weeks, etc,
3593 ;; and divide things to see whether that results
3594 ;; in positive answers.
3599 ;; The (remaining) seconds are too few to
3600 ;; be divided into this time unit.
3601 ""
3602 ;; It's big enough, so we output it.
3612 ;; If dates are odd, then it might appear like the
3613 ;; article was sent in the future.
3615 " ago"
3619 "Convert the current article date to the local timezone."
3624 "Convert the current article date to something that is proper English."
3629 "Convert the current article date to what it was originally.
3630 This is only useful if you have used some other date conversion
3631 function and want to see what the date was before converting."
3636 "Convert the current article date to time lapsed since it was sent."
3641 "Convert the current article date to time lapsed since it was sent."
3646 "Function to be run from a timer to update the lapsed time line."
3687 "Start a timer to update the Date headers in the article buffers.
3688 The numerical prefix says how frequently (in seconds) the function
3689 is to run."
3698 "Stop the Date timer."
3705 "Convert the current article date to the user-defined format.
3706 This format is defined by the `gnus-article-time-format' variable."
3711 "Convert the current article date to ISO8601."
3716 "Save the original date as a text property and evaluate FORMS."
3725 nil t))
3731 ,@forms
3736 ;; (defun article-show-all ()
3737 ;; "Show all hidden text in the article buffer."
3738 ;; (interactive)
3739 ;; (save-excursion
3740 ;; (let ((inhibit-read-only t))
3741 ;; (gnus-article-unhide-text (point-min) (point-max)))))
3744 "Remove excessive whitespace from all headers."
3755 "Emphasize text according to `gnus-emphasis-alist'."
3762 gnus-article-emphasis-alist)
3764 gnus-emphasis-alist))
3767 gnus-hidden-properties))
3768 regexp elem beg invisible visible face)
3789 "Setup newsgroup emphasis alist."
3801 highlight)
3806 gnus-emphasis-alist)))))
3811 ;;; Saving functions.
3814 "Save the currently selected article."
3817 ;; Remove headers according to `gnus-saved-headers' or the value
3818 ;; of the `:headers' property that the saver function might have.
3821 gnus-saved-headers gnus-visible-headers))
3822 ;; Ignore group parameter. See `article-hide-headers'.
3829 ;; !!! Magic! The saving functions all save
3830 ;; `gnus-save-article-buffer' (or so they think), but we
3831 ;; bind that variable to our save-buffer.
3846 function group headers variable
3847 dir-var)
3850 result)
3855 default-name)
3857 default-name)
3870 gnus-number-of-articles-to-be-saved)
3873 ;; Let the split methods have their say.
3875 ;; No split name was found.
3881 default-name))
3882 ;; A single group name is returned.
3891 default-name))
3892 ;; A single split name was found
3896 gnus-article-save-directory))
3903 dir name)))
3904 ;; A list of splits was found.
3914 gnus-article-save-directory
3916 gnus-article-save-directory)))
3918 ;; Create the directory.
3920 ;; If we have read a directory, we append the default file name.
3923 default-name)
3925 ;; Possibly translate some characters.
3932 result))
3942 "If GROUP is an nndoc group, return the name of the parent group."
3947 "Append this article to Rmail file.
3948 Optional argument FILENAME specifies file name.
3949 Directory to save to is default to `gnus-article-save-directory'."
3951 "Save %s in rmail file" filename
3952 gnus-rmail-save-name gnus-newsgroup-name
3958 ;; Note that unlike gnus-summary-save-in-mail, there is no
3959 ;; check to see if filename is Babyl. Rmail in Emacs 23 does
3960 ;; not use Babyl.
3962 filename)
3965 "Append this article to Unix mail file.
3966 Optional argument FILENAME specifies file name.
3967 Directory to save to is default to `gnus-article-save-directory'."
3969 "Save %s in Unix mail file" filename
3970 gnus-mail-save-name gnus-newsgroup-name
3981 filename)
3986 "Append this article to file.
3987 Optional argument FILENAME specifies file name.
3988 Directory to save to is default to `gnus-article-save-directory'."
3990 "Save %s in file" filename
3991 gnus-file-save-name gnus-newsgroup-name
4001 filename)
4007 "Write this article to a file, overwriting it if the file exists.
4008 Optional argument FILENAME specifies file name.
4009 The directory to save in defaults to `gnus-article-save-directory'."
4011 "Save %s in file" filename
4012 gnus-file-save-name gnus-newsgroup-name
4018 "Append this article body to a file.
4019 Optional argument FILENAME specifies file name.
4020 The directory to save in defaults to `gnus-article-save-directory'."
4022 "Save %s body in file" filename
4023 gnus-file-save-name gnus-newsgroup-name
4035 filename)
4041 "Write this article body to a file, overwriting it if the file exists.
4042 Optional argument FILENAME specifies file name.
4043 The directory to save in defaults to `gnus-article-save-directory'."
4045 "Save %s body in file" filename
4046 gnus-file-save-name gnus-newsgroup-name
4053 "Pipe this article to subprocess COMMAND.
4054 Valid values for COMMAND include:
4055 a string
4056 The executable command name and possibly arguments.
4057 nil
4058 You will be prompted for the command in the minibuffer.
4059 the symbol `default'
4060 It will be replaced with the command which the variable
4061 `gnus-summary-pipe-output-default-command' holds or the command
4062 last used for saving.
4063 Non-nil value for RAW overrides `:decode' and `:headers' properties
4064 and the raw article including all headers will be piped."
4068 save-buffer default)
4076 gnus-article-buffer
4077 gnus-original-article-buffer)
4080 ;; Remove unwanted headers.
4087 gnus-saved-headers gnus-visible-headers))
4093 gnus-last-shell-command))
4097 default
4099 default))))
4112 "Pipe this article to muttprint."
4115 "Print using command: " gnus-summary-muttprint-program
4116 nil gnus-summary-muttprint-program)))
4118 gnus-summary-pipe-output-default-command))
4122 ;;; Article file names when saving.
4125 "Capitalize NEWSGROUP name."
4131 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4132 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
4133 Otherwise, it is like ~/News/news/group/num."
4140 gnus-article-save-directory)))
4145 default
4149 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4150 If variable `gnus-use-long-file-name' is non-nil, it is
4151 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
4155 newsgroup
4158 gnus-article-save-directory)))
4163 default
4167 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
4168 If variable `gnus-use-long-file-name' is non-nil, it is
4169 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
4173 newsgroup
4176 default-directory))
4177 gnus-article-save-directory)))
4180 "Generate file name from sender."
4186 gnus-article-save-directory)))
4189 "Verify X-PGP-Sig."
4190 ;; <ftp://ftp.isc.org/pub/pgpcontrol/FORMAT>
4195 items info headers)
4197 mml2015-use
4205 ;; Don't verify multiple headers.
4255 ;; Do highlighting.
4266 "Verify Cancel-Lock header."
4290 article-verify-x-pgp-sig
4291 article-verify-cancel-lock
4292 article-hide-boring-headers
4293 article-treat-overstrike
4294 article-treat-ansi-sequences
4295 article-fill-long-lines
4296 article-capitalize-sentences
4297 article-remove-cr
4298 article-remove-leading-whitespace
4299 article-display-x-face
4300 article-display-face
4301 article-de-quoted-unreadable
4302 article-de-base64-unreadable
4303 article-decode-HZ
4304 article-wash-html
4305 article-unsplit-urls
4306 article-hide-list-identifiers
4307 article-strip-banner
4308 article-babel
4309 article-hide-pem
4310 article-hide-signature
4311 article-strip-headers-in-body
4312 article-remove-trailing-blank-lines
4313 article-strip-leading-blank-lines
4314 article-strip-multiple-blank-lines
4315 article-strip-leading-space
4316 article-strip-trailing-space
4317 article-strip-blank-lines
4318 article-strip-all-blank-lines
4319 article-date-local
4320 article-date-english
4321 article-date-iso8601
4322 article-date-original
4323 article-treat-date
4324 article-date-ut
4325 article-decode-mime-words
4326 article-decode-charset
4327 article-decode-encoded-words
4328 article-date-user
4329 article-date-lapsed
4330 article-date-combined-lapsed
4331 article-emphasize
4332 article-treat-dumbquotes
4333 article-treat-non-ascii
4334 article-normalize-headers
4335 ;;(article-show-all . gnus-article-show-all-headers)
4336 )))
4337 \f
4338 ;;;
4339 ;;; Gnus article mode
4340 ;;;
4347 " " gnus-article-goto-next-page
4349 [delete] gnus-article-goto-prev-page
4350 [backspace] gnus-article-goto-prev-page
4351 "\C-c^" gnus-article-refer-article
4352 "h" gnus-article-show-summary
4353 "s" gnus-article-show-summary
4354 "\C-c\C-m" gnus-article-mail
4355 "?" gnus-article-describe-briefly
4356 "<" beginning-of-buffer
4357 ">" end-of-buffer
4358 "\C-c\C-i" gnus-info-find-node
4359 "\C-c\C-b" gnus-bug
4360 "R" gnus-article-reply-with-original
4361 "F" gnus-article-followup-with-original
4362 "\C-hk" gnus-article-describe-key
4363 "\C-hc" gnus-article-describe-key-briefly
4364 "\C-hb" gnus-article-describe-bindings
4366 "e" gnus-article-read-summary-keys
4367 "\C-d" gnus-article-read-summary-keys
4368 "\M-*" gnus-article-read-summary-keys
4369 "\M-#" gnus-article-read-summary-keys
4370 "\M-^" gnus-article-read-summary-keys
4371 "\M-g" gnus-article-read-summary-keys)
4373 (substitute-key-definition
4374 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
4376 (gnus-define-keys (gnus-article-send-map "S" gnus-article-mode-map)
4377 "W" gnus-article-wide-reply-with-original)
4378 (if (featurep 'xemacs)
4379 (set-keymap-default-binding gnus-article-send-map
4380 'gnus-article-read-summary-send-keys)
4381 (define-key gnus-article-send-map [t] 'gnus-article-read-summary-send-keys))
4383 (defun gnus-article-make-menu-bar ()
4384 (unless (boundp 'gnus-article-commands-menu)
4385 (gnus-summary-make-menu-bar))
4386 (unless (boundp 'gnus-article-article-menu)
4387 (easy-menu-define
4388 gnus-article-article-menu gnus-article-mode-map ""
4389 '("Article"
4390 ["Scroll forwards" gnus-article-goto-next-page t]
4391 ["Scroll backwards" gnus-article-goto-prev-page t]
4392 ["Show summary" gnus-article-show-summary t]
4393 ["Fetch Message-ID at point" gnus-article-refer-article t]
4394 ["Mail to address at point" gnus-article-mail t]
4395 ["Send a bug report" gnus-bug t]))
4397 (easy-menu-define
4398 gnus-article-treatment-menu gnus-article-mode-map ""
4399 ;; Fixme: this should use :active (and maybe :visible).
4400 '("Treatment"
4401 ["Hide headers" gnus-article-hide-headers t]
4402 ["Hide signature" gnus-article-hide-signature t]
4403 ["Hide citation" gnus-article-hide-citation t]
4404 ["Treat overstrike" gnus-article-treat-overstrike t]
4405 ["Treat ANSI sequences" gnus-article-treat-ansi-sequences t]
4406 ["Remove carriage return" gnus-article-remove-cr t]
4407 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
4408 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
4409 ["Remove base64" gnus-article-de-base64-unreadable t]
4410 ["Treat html" gnus-article-wash-html t]
4411 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
4412 ["Decode HZ" gnus-article-decode-HZ t]))
4414 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
4416 ;; Note "Post" menu is defined in gnus-sum.el for consistency
4418 (gnus-run-hooks 'gnus-article-menu-hook)))
4420 (defvar bookmark-make-record-function)
4421 (defvar shr-put-image-function)
4423 (defun gnus-article-mode ()
4424 "Major mode for displaying an article.
4426 All normal editing commands are switched off.
4428 The following commands are available in addition to all summary mode
4429 commands:
4438 (interactive)
4439 (kill-all-local-variables)
4440 (gnus-simplify-mode-line)
4441 (setq mode-name "Article")
4442 (setq major-mode 'gnus-article-mode)
4443 (make-local-variable 'minor-mode-alist)
4444 (use-local-map gnus-article-mode-map)
4445 (when (gnus-visual-p 'article-menu 'menu)
4446 (gnus-article-make-menu-bar)
4447 (when gnus-summary-tool-bar-map
4448 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
4449 (gnus-update-format-specifications nil 'article-mode)
4450 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
4451 (set (make-local-variable 'gnus-page-broken) nil)
4452 (make-local-variable 'gnus-article-current-summary)
4453 (make-local-variable 'gnus-article-mime-handles)
4454 (make-local-variable 'gnus-article-decoded-p)
4455 (make-local-variable 'gnus-article-mime-handle-alist)
4456 (make-local-variable 'gnus-article-wash-types)
4457 (make-local-variable 'gnus-article-image-alist)
4458 (make-local-variable 'gnus-article-charset)
4459 (make-local-variable 'gnus-article-ignored-charsets)
4460 (set (make-local-variable 'bookmark-make-record-function)
4461 'gnus-summary-bookmark-make-record)
4462 ;; Prevent Emacs 22 from displaying non-break space with `nobreak-space'
4463 ;; face.
4464 (set (make-local-variable 'nobreak-char-display) nil)
4465 ;; Enable `gnus-article-remove-images' to delete images shr.el renders.
4466 (set (make-local-variable 'shr-put-image-function) 'gnus-shr-put-image)
4467 (setq cursor-in-non-selected-windows nil)
4468 (gnus-set-default-directory)
4469 (buffer-disable-undo)
4470 (setq buffer-read-only t
4471 show-trailing-whitespace nil)
4472 (set-syntax-table gnus-article-mode-syntax-table)
4473 (mm-enable-multibyte)
4474 (gnus-run-mode-hooks 'gnus-article-mode-hook))
4476 (defun gnus-article-setup-buffer ()
4477 "Initialize the article buffer."
4478 (let* ((name (if gnus-single-article-buffer "*Article*"
4479 (concat "*Article " gnus-newsgroup-name "*")))
4480 (original
4482 (concat " *Original Article"
4483 (substring name (match-end 0))))))
4484 (setq gnus-article-buffer name)
4485 (setq gnus-original-article-buffer original)
4486 (setq gnus-article-mime-handle-alist nil)
4487 (with-current-buffer gnus-summary-buffer
4488 ;; This might be a variable local to the summary buffer.
4489 (unless gnus-single-article-buffer
4490 (setq gnus-article-buffer name)
4491 (setq gnus-original-article-buffer original)
4492 (gnus-set-global-variables)))
4493 (gnus-article-setup-highlight-words)
4494 ;; Init original article buffer.
4495 (with-current-buffer (gnus-get-buffer-create gnus-original-article-buffer)
4496 (mm-enable-multibyte)
4497 (setq major-mode 'gnus-original-article-mode)
4498 (make-local-variable 'gnus-original-article))
4499 (if (and (get-buffer name)
4500 (with-current-buffer name
4501 (if gnus-article-edit-mode
4502 (if (y-or-n-p "Article mode edit in progress; discard? ")
4503 (progn
4504 (set-buffer-modified-p nil)
4505 (gnus-kill-buffer name)
4506 (message "")
4507 nil)
4508 (error "Action aborted"))
4509 t)))
4510 (with-current-buffer name
4511 (set (make-local-variable 'gnus-article-edit-mode) nil)
4512 (when gnus-article-mime-handles
4513 (mm-destroy-parts gnus-article-mime-handles)
4514 (setq gnus-article-mime-handles nil))
4515 ;; Set it to nil in article-buffer!
4516 (setq gnus-article-mime-handle-alist nil)
4517 (buffer-disable-undo)
4518 (setq buffer-read-only t)
4519 (unless (eq major-mode 'gnus-article-mode)
4520 (gnus-article-mode))
4521 (setq truncate-lines gnus-article-truncate-lines)
4522 (current-buffer))
4523 (with-current-buffer (gnus-get-buffer-create name)
4524 (gnus-article-mode)
4525 (setq truncate-lines gnus-article-truncate-lines)
4526 (make-local-variable 'gnus-summary-buffer)
4527 (setq gnus-summary-buffer
4528 (gnus-summary-buffer-name gnus-newsgroup-name))
4529 (gnus-summary-set-local-parameters gnus-newsgroup-name)
4530 (when article-lapsed-timer
4531 (gnus-stop-date-timer))
4532 (when gnus-article-update-date-headers
4533 (gnus-start-date-timer gnus-article-update-date-headers))
4534 (current-buffer)))))
4536 ;; Set article window start at LINE, where LINE is the number of lines
4537 ;; from the head of the article.
4538 (defun gnus-article-set-window-start (&optional line)
4539 (let ((article-window (gnus-get-buffer-window gnus-article-buffer t)))
4540 (when article-window
4541 (set-window-start
4542 article-window
4543 (with-current-buffer gnus-article-buffer
4544 (goto-char (point-min))
4545 (if (not line)
4546 (point-min)
4547 (gnus-message 6 "Moved to bookmark")
4549 (forward-line line)
4550 (point)))))))
4552 (defun gnus-article-prepare (article &optional all-headers header)
4553 "Prepare ARTICLE in article mode buffer.
4554 ARTICLE should either be an article number or a Message-ID.
4555 If ARTICLE is an id, HEADER should be the article headers.
4556 If ALL-HEADERS is non-nil, no headers are hidden."
4557 (save-excursion
4558 ;; Make sure we start in a summary buffer.
4559 (unless (eq major-mode 'gnus-summary-mode)
4560 (set-buffer gnus-summary-buffer))
4561 (setq gnus-summary-buffer (current-buffer))
4562 (let* ((gnus-article (if header (mail-header-number header) article))
4563 (summary-buffer (current-buffer))
4564 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
4565 (group gnus-newsgroup-name)
4566 result)
4567 (save-excursion
4568 (gnus-article-setup-buffer)
4569 (set-buffer gnus-article-buffer)
4570 ;; Deactivate active regions.
4571 (when (and (boundp 'transient-mark-mode)
4572 transient-mark-mode)
4573 (setq mark-active nil))
4574 (if (not (setq result (let ((inhibit-read-only t))
4575 (gnus-request-article-this-buffer
4576 article group))))
4577 ;; There is no such article.
4578 (save-excursion
4579 (when (and (numberp article)
4580 (not (memq article gnus-newsgroup-sparse)))
4581 (setq gnus-article-current
4582 (cons gnus-newsgroup-name article))
4583 (set-buffer gnus-summary-buffer)
4584 (setq gnus-current-article article)
4585 (if (and (memq article gnus-newsgroup-undownloaded)
4586 (not (gnus-online (gnus-find-method-for-group
4587 gnus-newsgroup-name))))
4588 (progn
4589 (gnus-summary-set-agent-mark article)
4590 (message "Message marked for downloading"))
4591 (gnus-summary-mark-article article gnus-canceled-mark)
4592 (unless (memq article gnus-newsgroup-sparse)
4593 (gnus-error 1 "No such article (may have expired or been canceled)")))))
4594 (if (or (eq result 'pseudo)
4595 (eq result 'nneething))
4596 (progn
4597 (with-current-buffer summary-buffer
4598 (push article gnus-newsgroup-history)
4599 (setq gnus-last-article gnus-current-article
4600 gnus-current-article 0
4601 gnus-current-headers nil
4602 gnus-article-current nil)
4603 (if (eq result 'nneething)
4604 (gnus-configure-windows 'summary)
4605 (gnus-configure-windows 'article))
4606 (gnus-set-global-variables))
4607 (let ((gnus-article-mime-handle-alist-1
4608 gnus-article-mime-handle-alist))
4609 (gnus-set-mode-line 'article)))
4610 ;; The result from the `request' was an actual article -
4611 ;; or at least some text that is now displayed in the
4612 ;; article buffer.
4613 (when (and (numberp article)
4614 (not (eq article gnus-current-article)))
4615 ;; Seems like a new article has been selected.
4616 ;; `gnus-current-article' must be an article number.
4617 (with-current-buffer summary-buffer
4618 (push article gnus-newsgroup-history)
4619 (setq gnus-last-article gnus-current-article
4620 gnus-current-article article
4621 gnus-current-headers
4622 (gnus-summary-article-header gnus-current-article)
4623 gnus-article-current
4624 (cons gnus-newsgroup-name gnus-current-article))
4625 (unless (vectorp gnus-current-headers)
4626 (setq gnus-current-headers nil))
4627 (gnus-summary-goto-subject gnus-current-article)
4628 (when (gnus-summary-show-thread)
4629 ;; If the summary buffer really was folded, the
4630 ;; previous goto may not actually have gone to
4631 ;; the right article, but the thread root instead.
4632 ;; So we go again.
4633 (gnus-summary-goto-subject gnus-current-article))
4634 (gnus-run-hooks 'gnus-mark-article-hook)
4635 (gnus-set-mode-line 'summary)
4636 (when (gnus-visual-p 'article-highlight 'highlight)
4637 (gnus-run-hooks 'gnus-visual-mark-article-hook))
4638 ;; Set the global newsgroup variables here.
4639 (gnus-set-global-variables)
4640 (setq gnus-have-all-headers
4641 (or all-headers gnus-show-all-headers))))
4642 (save-excursion
4643 (gnus-configure-windows 'article))
4644 (when (or (numberp article)
4645 (stringp article))
4646 (gnus-article-prepare-display)
4647 ;; Do page break.
4648 (goto-char (point-min))
4649 (when gnus-break-pages
4650 (gnus-narrow-to-page)))
4651 (let ((gnus-article-mime-handle-alist-1
4652 gnus-article-mime-handle-alist))
4653 (gnus-set-mode-line 'article))
4654 (article-goto-body)
4655 (unless (bobp)
4656 (forward-line -1))
4657 (set-window-point (get-buffer-window (current-buffer)) (point))
4658 (gnus-configure-windows 'article)
4659 (gnus-run-hooks 'gnus-article-prepare-hook)
4660 t))))))
4662 ;;;###autoload
4663 (defun gnus-article-prepare-display ()
4664 "Make the current buffer look like a nice article."
4665 ;; Hooks for getting information from the article.
4666 ;; This hook must be called before being narrowed.
4667 (let ((gnus-article-buffer (current-buffer))
4668 buffer-read-only
4669 (inhibit-read-only t))
4670 (unless (eq major-mode 'gnus-article-mode)
4671 (gnus-article-mode))
4672 (setq buffer-read-only nil
4673 gnus-article-wash-types nil
4674 gnus-article-image-alist nil)
4675 (gnus-run-hooks 'gnus-tmp-internal-hook)
4676 (when gnus-display-mime-function
4677 (funcall gnus-display-mime-function))))
4679 ;;;
4680 ;;; Gnus Sticky Article Mode
4681 ;;;
4683 (define-derived-mode gnus-sticky-article-mode gnus-article-mode "StickyArticle"
4684 "Mode for sticky articles."
4685 ;; Release bindings that won't work.
4686 (substitute-key-definition 'gnus-article-read-summary-keys 'undefined
4687 gnus-sticky-article-mode-map)
4688 (substitute-key-definition 'gnus-article-refer-article 'undefined
4689 gnus-sticky-article-mode-map)
4690 (dolist (k '("e" "h" "s" "F" "R"))
4691 (define-key gnus-sticky-article-mode-map k nil))
4692 (define-key gnus-sticky-article-mode-map "k" 'gnus-kill-sticky-article-buffer)
4693 (define-key gnus-sticky-article-mode-map "q" 'bury-buffer)
4694 (define-key gnus-sticky-article-mode-map "\C-hc" 'describe-key-briefly)
4695 (define-key gnus-sticky-article-mode-map "\C-hk" 'describe-key))
4697 (defun gnus-sticky-article (arg)
4698 "Make the current article sticky.
4699 If a prefix ARG is given, ask for a name for this sticky article buffer."
4700 (interactive "P")
4701 (gnus-summary-show-thread)
4702 (gnus-summary-select-article nil nil 'pseudo)
4703 (let (new-art-buf-name)
4704 (gnus-eval-in-buffer-window gnus-article-buffer
4705 (setq new-art-buf-name
4706 (concat
4707 "*Sticky Article: "
4708 (if arg
4709 (read-from-minibuffer "Sticky article buffer name: ")
4710 (gnus-with-article-headers
4711 (gnus-article-goto-header "subject")
4712 (setq new-art-buf-name
4713 (buffer-substring-no-properties
4714 (line-beginning-position) (line-end-position)))
4715 (goto-char (point-min))
4716 (gnus-article-goto-header "from")
4717 (setq new-art-buf-name
4718 (concat
4719 new-art-buf-name ", "
4720 (buffer-substring-no-properties
4721 (line-beginning-position) (line-end-position))))
4722 (goto-char (point-min))
4723 (gnus-article-goto-header "date")
4724 (setq new-art-buf-name
4725 (concat
4726 new-art-buf-name ", "
4727 (buffer-substring-no-properties
4728 (line-beginning-position) (line-end-position))))))
4729 "*"))
4730 (if (and (gnus-buffer-live-p new-art-buf-name)
4731 (with-current-buffer new-art-buf-name
4732 (eq major-mode 'gnus-sticky-article-mode)))
4733 (switch-to-buffer new-art-buf-name)
4734 (setq new-art-buf-name (rename-buffer new-art-buf-name t)))
4735 (gnus-sticky-article-mode))
4736 (setq gnus-article-buffer new-art-buf-name))
4737 (gnus-summary-recenter)
4738 (gnus-summary-position-point))
4740 (defun gnus-kill-sticky-article-buffer (&optional buffer)
4741 "Kill the given sticky article BUFFER.
4742 If none is given, assume the current buffer and kill it if it has
4743 `gnus-sticky-article-mode'."
4744 (interactive)
4745 (unless buffer
4746 (setq buffer (current-buffer)))
4747 (with-current-buffer buffer
4748 (when (eq major-mode 'gnus-sticky-article-mode)
4749 (gnus-kill-buffer buffer))))
4751 (defun gnus-kill-sticky-article-buffers (arg)
4752 "Kill all sticky article buffers.
4753 If a prefix ARG is given, ask for confirmation."
4754 (interactive "P")
4755 (dolist (buf (gnus-buffers))
4756 (with-current-buffer buf
4757 (when (eq major-mode 'gnus-sticky-article-mode)
4758 (if (not arg)
4759 (gnus-kill-buffer buf)
4760 (when (yes-or-no-p (concat "Kill buffer " (buffer-name buf) "? "))
4761 (gnus-kill-buffer buf)))))))
4763 ;;;
4764 ;;; Gnus MIME viewing functions
4765 ;;;
4768 "Format of the MIME buttons.
4770 Valid specifiers include:
4771 %t The MIME type
4772 %T MIME type, along with additional info
4773 %n The `name' parameter
4774 %d The description, if any
4775 %l The length of the encoded part
4776 %p The part identifier number
4777 %e Dots if the part isn't displayed
4779 General format specifiers can also be used. See Info node
4780 `(gnus)Formatting Variables'.")
4782 (defvar gnus-mime-button-line-format-alist
4783 '((?t gnus-tmp-type ?s)
4784 (?T gnus-tmp-type-long ?s)
4785 (?n gnus-tmp-name ?s)
4786 (?d gnus-tmp-description ?s)
4787 (?p gnus-tmp-id ?s)
4788 (?l gnus-tmp-length ?d)
4789 (?e gnus-tmp-dots ?s)))
4791 (defvar gnus-mime-button-commands
4793 (gnus-mime-view-part "v" "View Interactively...")
4794 (gnus-mime-view-part-as-type "t" "View As Type...")
4795 (gnus-mime-view-part-as-charset "C" "View As charset...")
4796 (gnus-mime-save-part "o" "Save...")
4797 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
4798 (gnus-mime-replace-part "r" "Replace part")
4799 (gnus-mime-delete-part "d" "Delete part")
4800 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
4801 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
4802 (gnus-mime-view-part-internally "E" "View Internally") ;; Why `E'?
4803 (gnus-mime-view-part-externally "e" "View Externally")
4804 (gnus-mime-print-part "p" "Print")
4805 (gnus-mime-pipe-part "|" "Pipe To Command...")
4806 (gnus-mime-action-on-part "." "Take action on the part...")))
4808 (defun gnus-article-mime-part-status ()
4809 (if gnus-article-mime-handle-alist-1
4810 (if (eq 1 (length gnus-article-mime-handle-alist-1))
4811 " (1 part)"
4812 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
4813 ""))
4815 (defvar gnus-mime-button-map
4816 (let ((map (make-sparse-keymap)))
4817 (define-key map gnus-mouse-2 'gnus-article-push-button)
4818 (define-key map gnus-down-mouse-3 'gnus-mime-button-menu)
4819 (dolist (c gnus-mime-button-commands)
4820 (define-key map (cadr c) (car c)))
4821 map))
4823 (easy-menu-define
4824 gnus-mime-button-menu gnus-mime-button-map "MIME button menu."
4825 `("MIME Part"
4826 ,@(mapcar (lambda (c)
4827 (vector (caddr c) (car c) :active t))
4828 gnus-mime-button-commands)))
4830 (defvar gnus-url-button-commands
4831 '((gnus-article-copy-string "u" "Copy URL to kill ring")))
4833 (defvar gnus-url-button-map
4834 (let ((map (make-sparse-keymap)))
4835 (dolist (c gnus-url-button-commands)
4836 (define-key map (cadr c) (car c)))
4837 map))
4839 (easy-menu-define
4840 gnus-url-button-menu gnus-url-button-map "URL button menu."
4841 `("Url Button"
4842 ,@(mapcar (lambda (c)
4843 (vector (caddr c) (car c) :active t))
4844 gnus-url-button-commands)))
4846 (defmacro gnus-bind-safe-url-regexp (&rest body)
4847 "Bind `mm-w3m-safe-url-regexp' according to `gnus-safe-html-newsgroups'."
4848 `(let ((mm-w3m-safe-url-regexp
4849 (let ((group (if (and (eq major-mode 'gnus-article-mode)
4850 (gnus-buffer-live-p
4851 gnus-article-current-summary))
4852 (with-current-buffer gnus-article-current-summary
4853 gnus-newsgroup-name)
4854 gnus-newsgroup-name)))
4855 (if (cond ((not group)
4856 ;; Maybe we're in a mml-preview buffer
4857 ;; and no group is selected.
4858 t)
4859 ((stringp gnus-safe-html-newsgroups)
4860 (string-match gnus-safe-html-newsgroups group))
4861 ((consp gnus-safe-html-newsgroups)
4862 (member group gnus-safe-html-newsgroups)))
4863 nil
4864 mm-w3m-safe-url-regexp))))
4865 ,@body))
4867 (defun gnus-mime-button-menu (event prefix)
4868 "Construct a context-sensitive menu of MIME commands."
4870 (save-window-excursion
4871 (let ((pos (event-start event)))
4872 (select-window (posn-window pos))
4873 (goto-char (posn-point pos))
4874 (gnus-article-check-buffer)
4875 (popup-menu gnus-mime-button-menu nil prefix))))
4877 (defun gnus-mime-view-all-parts (&optional handles)
4878 "View all the MIME parts."
4879 (interactive)
4880 (with-current-buffer gnus-article-buffer
4881 (let ((handles (or handles gnus-article-mime-handles))
4882 (mail-parse-charset gnus-newsgroup-charset)
4883 (mail-parse-ignored-charsets
4884 (with-current-buffer gnus-summary-buffer
4885 gnus-newsgroup-ignored-charsets)))
4886 (when handles
4887 (mm-remove-parts handles)
4888 (goto-char (point-min))
4890 (let ((inhibit-read-only t))
4891 (delete-region (point) (point-max))
4892 (gnus-bind-safe-url-regexp (mm-display-parts handles)))))))
4894 (defun gnus-article-jump-to-part (n)
4895 "Jump to MIME part N."
4896 (interactive "P")
4897 (let ((parts (with-current-buffer gnus-article-buffer
4898 (length gnus-article-mime-handle-alist))))
4899 (when (zerop parts)
4900 (error "No such part"))
4901 (pop-to-buffer gnus-article-buffer)
4902 (or n
4903 (setq n (if (= parts 1)
4904 1
4905 (read-number (format "Jump to part (1..%s): " parts)))))
4906 (unless (and (integerp n) (<= n parts) (>= n 1))
4907 (setq n
4908 (progn
4909 (gnus-message 7 "Invalid part `%s', using %s instead."
4910 n parts)
4911 parts)))
4912 (gnus-message 9 "Jumping to part %s." n)
4913 (cond ((>= gnus-auto-select-part 1)
4914 (while (and (<= n parts)
4915 (not (gnus-article-goto-part n)))
4916 (setq n (1+ n))))
4917 ((< gnus-auto-select-part 0)
4918 (while (and (>= n 1)
4919 (not (gnus-article-goto-part n)))
4920 (setq n (1- n))))
4921 (t
4922 (gnus-article-goto-part n)))))
4924 (defvar gnus-mime-buttonized-part-id nil
4925 "ID of a mime part that should be buttonized.
4926 `gnus-mime-save-part-and-strip' and `gnus-mime-delete-part' bind it.")
4928 (eval-when-compile
4929 (defsubst gnus-article-edit-part (handles &optional current-id)
4930 "Edit an article in order to delete a mime part.
4931 This function is exclusively used by `gnus-mime-save-part-and-strip'
4932 and `gnus-mime-delete-part', and not provided at run-time normally."
4933 (gnus-article-edit-article
4934 `(lambda ()
4935 (buffer-disable-undo)
4936 (erase-buffer)
4937 (let ((mail-parse-charset (or gnus-article-charset
4938 ',gnus-newsgroup-charset))
4939 (mail-parse-ignored-charsets
4940 (or gnus-article-ignored-charsets
4941 ',gnus-newsgroup-ignored-charsets))
4942 (mbl mml-buffer-list))
4943 (setq mml-buffer-list nil)
4944 (insert-buffer-substring gnus-original-article-buffer)
4945 (mime-to-mml ',handles)
4946 (setq gnus-article-mime-handles nil)
4947 (let ((mbl1 mml-buffer-list))
4948 (setq mml-buffer-list mbl)
4949 (set (make-local-variable 'mml-buffer-list) mbl1))
4950 (gnus-make-local-hook 'kill-buffer-hook)
4951 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
4952 `(lambda (no-highlight)
4953 (let ((mail-parse-charset (or gnus-article-charset
4954 ',gnus-newsgroup-charset))
4955 (message-options message-options)
4956 (message-options-set-recipient)
4957 (mail-parse-ignored-charsets
4958 (or gnus-article-ignored-charsets
4959 ',gnus-newsgroup-ignored-charsets)))
4960 (mml-to-mime)
4961 (mml-destroy-buffers)
4962 (remove-hook 'kill-buffer-hook
4963 'mml-destroy-buffers t)
4964 (kill-local-variable 'mml-buffer-list))
4965 (gnus-summary-edit-article-done
4966 ,(or (mail-header-references gnus-current-headers) "")
4967 ,(gnus-group-read-only-p)
4968 ,gnus-summary-buffer no-highlight))
4969 t)
4970 ;; Force buttonizing this part.
4971 (let ((gnus-mime-buttonized-part-id current-id))
4972 (gnus-article-edit-done))
4973 (gnus-configure-windows 'article)
4974 (when (and current-id (integerp gnus-auto-select-part))
4975 (gnus-article-jump-to-part
4976 (min (max (+ current-id gnus-auto-select-part) 1)
4977 (with-current-buffer gnus-article-buffer
4978 (length gnus-article-mime-handle-alist)))))))
4980 (defun gnus-mime-replace-part (file)
4981 "Replace MIME part under point with an external body."
4982 ;; Useful if file has already been saved to disk
4983 (interactive
4984 (list
4985 (read-file-name "Replace MIME part with file: "
4986 (or mm-default-directory default-directory)
4987 nil nil)))
4988 (gnus-mime-save-part-and-strip file))
4990 (defun gnus-mime-save-part-and-strip (&optional file)
4991 "Save the MIME part under point then replace it with an external body.
4992 If FILE is given, use it for the external part."
4993 (interactive)
4994 (gnus-article-check-buffer)
4995 (when (gnus-group-read-only-p)
4996 (error "The current group does not support deleting of parts"))
4997 (when (mm-complicated-handles gnus-article-mime-handles)
4998 (error "\
4999 The current article has a complicated MIME structure, giving up..."))
5000 (let* ((data (get-text-property (point) 'gnus-data))
5001 (id (get-text-property (point) 'gnus-part))
5002 param
5003 (handles gnus-article-mime-handles))
5004 (unless file
5005 (setq file
5006 (and data (mm-save-part data "Delete MIME part and save to: "))))
5007 (when file
5008 (with-current-buffer (mm-handle-buffer data)
5009 (erase-buffer)
5010 (insert "Content-Type: " (mm-handle-media-type data))
5011 (mml-insert-parameter-string (cdr (mm-handle-type data))
5012 '(charset))
5013 ;; Add a filename for the sake of saving the part again.
5014 (mml-insert-parameter
5015 (mail-header-encode-parameter "name" (file-name-nondirectory file)))
5020 (setcdr data
5021 (cdr (mm-make-handle nil
5022 `("message/external-body"
5023 (access-type . "LOCAL-FILE")
5024 (name . ,file)))))
5025 ;; (set-buffer gnus-summary-buffer)
5026 (gnus-article-edit-part handles id))))
5028 ;; A function like `gnus-summary-save-parts' (`X m', `<MIME> <Extract all
5029 ;; parts...>') but with stripping would be nice.
5031 (defun gnus-mime-delete-part ()
5032 "Delete the MIME part under point.
5033 Replace it with some information about the removed part."
5034 (interactive)
5035 (gnus-article-check-buffer)
5036 (when (gnus-group-read-only-p)
5037 (error "The current group does not support deleting of parts"))
5038 (when (mm-complicated-handles gnus-article-mime-handles)
5039 (error "\
5040 The current article has a complicated MIME structure, giving up..."))
5041 (when (or gnus-expert-user
5042 (gnus-yes-or-no-p "\
5043 Deleting parts may malfunction or destroy the article; continue? "))
5044 (let* ((data (get-text-property (point) 'gnus-data))
5045 (id (get-text-property (point) 'gnus-part))
5046 (handles gnus-article-mime-handles)
5047 (description
5048 (let ((desc (mm-handle-description data)))
5049 (when desc
5050 (mail-decode-encoded-word-string desc))))
5051 (filename (or (mm-handle-filename data) "(none)"))
5052 (type (mm-handle-media-type data)))
5053 (unless data
5054 (error "No MIME part under point"))
5055 (with-current-buffer (mm-handle-buffer data)
5056 (let ((bsize (buffer-size)))
5057 (erase-buffer)
5058 (insert
5059 (concat
5066 bsize (if (= bsize 1)
5067 ""
5068 "s"))
5069 (when description
5072 (setcdr data
5073 (cdr (mm-make-handle
5074 nil `("text/plain" (charset . gnus-decoded)) nil nil
5075 (list "attachment")
5076 (format "Deleted attachment (%s bytes)" bsize))))))
5077 ;; (set-buffer gnus-summary-buffer)
5078 (gnus-article-edit-part handles id))))
5080 (defun gnus-mime-save-part ()
5081 "Save the MIME part under point."
5082 (interactive)
5083 (gnus-article-check-buffer)
5084 (let ((data (get-text-property (point) 'gnus-data)))
5085 (when data
5086 (mm-save-part data))))
5088 (defun gnus-mime-pipe-part (&optional cmd)
5089 "Pipe the MIME part under point to a process.
5090 Use CMD as the process."
5091 (interactive)
5092 (gnus-article-check-buffer)
5093 (let ((data (get-text-property (point) 'gnus-data)))
5094 (when data
5095 (mm-pipe-part data cmd))))
5097 (defun gnus-mime-view-part ()
5098 "Interactively choose a viewing method for the MIME part under point."
5099 (interactive)
5100 (gnus-article-check-buffer)
5101 (let ((data (get-text-property (point) 'gnus-data)))
5102 (when data
5103 (setq gnus-article-mime-handles
5104 (mm-merge-handles
5105 gnus-article-mime-handles (setq data (copy-sequence data))))
5106 (mm-interactively-view-part data))))
5108 (defun gnus-mime-view-part-as-type-internal ()
5109 (gnus-article-check-buffer)
5110 (let* ((handle (get-text-property (point) 'gnus-data))
5111 (name (or
5112 ;; Content-Type: foo/bar; name=...
5113 (mail-content-type-get (mm-handle-type handle) 'name)
5114 ;; Content-Disposition: attachment; filename=...
5115 (cdr (assq 'filename (cdr (mm-handle-disposition handle))))))
5116 (def-type (and name (mm-default-file-encoding name))))
5117 (or (and def-type (cons def-type 0))
5118 (and handle
5119 (equal (mm-handle-media-supertype handle) "text")
5120 '("text/plain" . 0))
5121 '("application/octet-stream" . 0))))
5123 (defun gnus-mime-view-part-as-type (&optional mime-type pred)
5124 "Choose a MIME media type, and view the part as such.
5125 If non-nil, PRED is a predicate to use during completion to limit the
5126 available media-types."
5127 (interactive)
5128 (unless mime-type
5129 (setq mime-type
5130 (let ((default (gnus-mime-view-part-as-type-internal)))
5131 (gnus-completing-read
5132 "View as MIME type"
5133 (if pred
5134 (gnus-remove-if-not pred (mailcap-mime-types))
5135 (mailcap-mime-types))
5136 nil nil nil
5137 (car default)))))
5138 (gnus-article-check-buffer)
5139 (let ((handle (get-text-property (point) 'gnus-data)))
5140 (when handle
5141 (when (equal (mm-handle-media-type handle) "message/external-body")
5142 (unless (mm-handle-cache handle)
5143 (mm-extern-cache-contents handle))
5144 (setq handle (mm-handle-cache handle)))
5145 (setq handle
5146 (mm-make-handle (mm-handle-buffer handle)
5147 (cons mime-type (cdr (mm-handle-type handle)))
5148 (mm-handle-encoding handle)
5149 (mm-handle-undisplayer handle)
5150 (mm-handle-disposition handle)
5151 (mm-handle-description handle)
5152 nil
5153 (mm-handle-id handle)))
5154 (setq gnus-article-mime-handles
5155 (mm-merge-handles gnus-article-mime-handles handle))
5156 (when (mm-handle-displayed-p handle)
5157 (mm-remove-part handle))
5158 (gnus-mm-display-part handle))))
5160 (defun gnus-mime-copy-part (&optional handle arg)
5161 "Put the MIME part under point into a new buffer.
5162 If `auto-compression-mode' is enabled, compressed files like .gz and .bz2
5163 are decompressed."
5164 (interactive (list nil current-prefix-arg))
5165 (gnus-article-check-buffer)
5166 (unless handle
5167 (setq handle (get-text-property (point) 'gnus-data)))
5168 (when handle
5169 (let ((filename (mm-handle-filename handle))
5170 contents dont-decode charset coding-system)
5171 (mm-with-unibyte-buffer
5172 (mm-insert-part handle)
5173 (setq contents (or (condition-case nil
5174 (mm-decompress-buffer filename nil 'sig)
5175 (error
5176 (setq dont-decode t)
5177 nil))
5178 (buffer-string))))
5179 (setq filename (cond (filename (file-name-nondirectory filename))
5180 (dont-decode "*raw data*")
5181 (t "*decoded*")))
5182 (cond
5183 (dont-decode)
5184 ((not arg)
5185 (unless (setq charset (mail-content-type-get
5186 (mm-handle-type handle) 'charset))
5187 (unless (setq coding-system (mm-with-unibyte-buffer
5188 (insert contents)
5189 (mm-find-buffer-file-coding-system)))
5190 (setq charset gnus-newsgroup-charset))))
5191 ((numberp arg)
5192 (setq charset (or (cdr (assq arg
5193 gnus-summary-show-article-charset-alist))
5194 (mm-read-coding-system "Charset: ")))))
5195 (switch-to-buffer (generate-new-buffer filename))
5196 (if (or coding-system
5197 (and charset
5198 (setq coding-system (mm-charset-to-coding-system charset))
5199 (not (eq coding-system 'ascii))))
5200 (progn
5201 (mm-enable-multibyte)
5202 (insert (mm-decode-coding-string contents coding-system))
5203 (setq buffer-file-coding-system
5204 (if (boundp 'last-coding-system-used)
5205 (symbol-value 'last-coding-system-used)
5206 coding-system)))
5207 (mm-disable-multibyte)
5208 (insert contents)
5209 (setq buffer-file-coding-system mm-binary-coding-system))
5210 ;; We do it this way to make `normal-mode' set the appropriate mode.
5211 (unwind-protect
5212 (progn
5213 (setq buffer-file-name (expand-file-name filename))
5214 (normal-mode))
5215 (setq buffer-file-name nil))
5216 (goto-char (point-min)))))
5218 (defun gnus-mime-print-part (&optional handle filename)
5219 "Print the MIME part under point."
5220 (interactive (list nil (ps-print-preprint current-prefix-arg)))
5221 (gnus-article-check-buffer)
5222 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5223 (contents (and handle (mm-get-part handle)))
5224 (file (mm-make-temp-file (expand-file-name "mm." mm-tmp-directory)))
5225 (printer (mailcap-mime-info (mm-handle-media-type handle) "print")))
5226 (when contents
5227 (if printer
5228 (unwind-protect
5229 (progn
5230 (mm-save-part-to-file handle file)
5231 (call-process shell-file-name nil
5232 (generate-new-buffer " *mm*")
5233 nil
5234 shell-command-switch
5235 (mm-mailcap-command
5236 printer file (mm-handle-type handle))))
5237 (delete-file file))
5238 (with-temp-buffer
5239 (insert contents)
5240 (gnus-print-buffer))
5241 (ps-despool filename)))))
5243 (defun gnus-mime-inline-part (&optional handle arg)
5244 "Insert the MIME part under point into the current buffer.
5245 Compressed files like .gz and .bz2 are decompressed."
5246 (interactive (list nil current-prefix-arg))
5247 (gnus-article-check-buffer)
5248 (unless handle
5249 (setq handle (get-text-property (point) 'gnus-data)))
5250 (when handle
5251 (let ((b (point))
5252 (inhibit-read-only t)
5253 contents charset coding-system)
5254 (if (and (not arg) (mm-handle-undisplayer handle))
5255 (mm-remove-part handle)
5256 (mm-with-unibyte-buffer
5257 (mm-insert-part handle)
5258 (setq contents
5259 (or (mm-decompress-buffer (mm-handle-filename handle) nil t)
5260 (buffer-string))))
5261 (cond
5262 ((not arg)
5263 (unless (setq charset (mail-content-type-get
5264 (mm-handle-type handle) 'charset))
5265 (unless (setq coding-system
5266 (mm-with-unibyte-buffer
5267 (insert contents)
5268 (mm-find-buffer-file-coding-system)))
5269 (setq charset gnus-newsgroup-charset))))
5270 ((numberp arg)
5271 (if (mm-handle-undisplayer handle)
5272 (mm-remove-part handle))
5273 (setq charset
5274 (or (cdr (assq arg
5275 gnus-summary-show-article-charset-alist))
5276 (mm-read-coding-system "Charset: "))))
5277 (t
5278 (if (mm-handle-undisplayer handle)
5279 (mm-remove-part handle))))
5280 (forward-line 2)
5281 (mm-display-inline handle)
5282 (goto-char b)))))
5284 (defun gnus-mime-set-charset-parameters (handle charset)
5285 "Set CHARSET to parameters in HANDLE.
5286 CHARSET may either be a string or a symbol."
5287 (unless (stringp charset)
5288 (setq charset (symbol-name charset)))
5289 (if (stringp (car handle))
5290 (dolist (h (cdr handle))
5291 (gnus-mime-set-charset-parameters h charset))
5292 (let* ((type (mm-handle-type (if (equal (mm-handle-media-type handle)
5293 "message/external-body")
5294 (progn
5295 (unless (mm-handle-cache handle)
5296 (mm-extern-cache-contents handle))
5297 (mm-handle-cache handle))
5298 handle)))
5299 (param (assq 'charset (cdr type))))
5300 (if param
5301 (setcdr param charset)
5302 (setcdr type (cons (cons 'charset charset) (cdr type)))))))
5304 (defun gnus-mime-view-part-as-charset (&optional handle arg)
5305 "Insert the MIME part under point into the current buffer using the
5306 specified charset."
5307 (interactive (list nil current-prefix-arg))
5308 (gnus-article-check-buffer)
5309 (let ((handle (or handle (get-text-property (point) 'gnus-data)))
5310 (fun (get-text-property (point) 'gnus-callback))
5311 (gnus-newsgroup-ignored-charsets 'gnus-all)
5312 charset form preferred parts)
5313 (when handle
5314 (when (prog1
5315 (and fun
5316 (setq charset
5317 (or (cdr (assq
5318 arg
5319 gnus-summary-show-article-charset-alist))
5320 (mm-read-coding-system "Charset: "))))
5321 (if (mm-handle-undisplayer handle)
5322 (mm-remove-part handle)))
5323 (gnus-mime-set-charset-parameters handle charset)
5324 (when (and (consp (setq form (cdr-safe fun)))
5325 (setq form (ignore-errors
5326 (assq 'gnus-mime-display-alternative form)))
5327 (setq preferred (caddr form))
5328 (progn
5329 (when (eq (car preferred) 'quote)
5330 (setq preferred (cadr preferred)))
5331 (not (equal preferred
5332 (get-text-property (point) 'gnus-data))))
5333 (setq parts (get-text-property (point) 'gnus-part))
5334 (setq parts (cdr (assq parts
5335 gnus-article-mime-handle-alist)))
5336 (equal (mm-handle-media-type parts) "multipart/alternative")
5337 (setq parts (reverse (cdr parts))))
5338 (setcar (cddr form)
5339 (list 'quote (or (cadr (member preferred parts))
5340 (car parts)))))
5341 (funcall fun handle)))))
5343 (defun gnus-mime-view-part-externally (&optional handle)
5344 "View the MIME part under point with an external viewer."
5345 (interactive)
5346 (gnus-article-check-buffer)
5347 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5348 (mm-user-display-methods nil)
5349 (mm-inlined-types nil)
5350 (mail-parse-charset gnus-newsgroup-charset)
5351 (mail-parse-ignored-charsets
5352 (with-current-buffer gnus-summary-buffer
5353 gnus-newsgroup-ignored-charsets))
5354 (type (mm-handle-media-type handle))
5355 (method (mailcap-mime-info type))
5356 (mm-enable-external t))
5357 (if (not (stringp method))
5358 (gnus-mime-view-part-as-type
5359 nil (lambda (type) (stringp (mailcap-mime-info type))))
5360 (when handle
5361 (mm-display-part handle nil t)))))
5363 (defun gnus-mime-view-part-internally (&optional handle)
5364 "View the MIME part under point with an internal viewer.
5365 If no internal viewer is available, use an external viewer."
5366 (interactive)
5367 (gnus-article-check-buffer)
5368 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
5369 (mm-inlined-types '(".*"))
5370 (mm-inline-large-images t)
5371 (mail-parse-charset gnus-newsgroup-charset)
5372 (mail-parse-ignored-charsets
5373 (with-current-buffer gnus-summary-buffer
5374 gnus-newsgroup-ignored-charsets))
5375 (inhibit-read-only t))
5376 (if (not (mm-inlinable-p handle))
5377 (gnus-mime-view-part-as-type
5378 nil (lambda (type) (mm-inlinable-p handle type)))
5379 (when handle
5380 (gnus-bind-safe-url-regexp (mm-display-part handle))))))
5382 (defun gnus-mime-action-on-part (&optional action)
5383 "Do something with the MIME attachment at \(point\)."
5384 (interactive
5385 (list (gnus-completing-read "Action" (mapcar 'car gnus-mime-action-alist) t)))
5386 (gnus-article-check-buffer)
5387 (let ((action-pair (assoc action gnus-mime-action-alist)))
5388 (if action-pair
5389 (funcall (cdr action-pair)))))
5391 (defun gnus-article-part-wrapper (n function &optional no-handle interactive)
5392 "Call FUNCTION on MIME part N.
5393 Unless NO-HANDLE, call FUNCTION with N-th MIME handle as it's only argument.
5394 If INTERACTIVE, call FUNCTION interactivly."
5395 (let (window frame)
5396 ;; Check whether the article is displayed.
5397 (unless (and (gnus-buffer-live-p gnus-article-buffer)
5398 (setq window (get-buffer-window gnus-article-buffer t))
5399 (frame-visible-p (setq frame (window-frame window))))
5400 (error "No article is displayed"))
5401 (with-current-buffer gnus-article-buffer
5402 ;; Check whether the article displays the right contents.
5403 (unless (with-current-buffer gnus-summary-buffer
5404 (eq gnus-current-article (gnus-summary-article-number)))
5405 (error "You should select the right article first"))
5406 (if n
5407 (setq n (prefix-numeric-value n))
5408 (let ((pt (point)))
5409 (setq n (or (get-text-property pt 'gnus-part)
5410 (and (not (bobp))
5411 (get-text-property (1- pt) 'gnus-part))
5412 (get-text-property (prog2
5413 (forward-line 1)
5414 (point)
5415 (goto-char pt))
5416 'gnus-part)
5417 (get-text-property
5418 (or (and (setq pt (previous-single-property-change
5419 pt 'gnus-part))
5420 (1- pt))
5421 (next-single-property-change (point) 'gnus-part)
5422 (point))
5423 'gnus-part)
5424 1))))
5425 ;; Check whether the specified part exists.
5426 (when (> n (length gnus-article-mime-handle-alist))
5427 (error "No such part")))
5428 (unless
5429 (progn
5430 ;; To select the window is needed so that the cursor
5431 ;; might be visible on the MIME button.
5432 (select-window (prog1
5433 window
5434 (setq window (selected-window))
5435 ;; Article may be displayed in the other frame.
5436 (gnus-select-frame-set-input-focus
5437 (prog1
5438 frame
5439 (setq frame (selected-frame))))))
5440 (when (gnus-article-goto-part n)
5441 ;; We point the cursor and the arrow at the MIME button
5442 ;; when the `function' prompt the user for something.
5443 (unless (and (pos-visible-in-window-p)
5444 (> (count-lines (point) (window-end))
5445 (/ (1- (window-height)) 3)))
5446 (recenter (/ (1- (window-height)) 3)))
5447 (let ((cursor-in-non-selected-windows t)
5448 (overlay-arrow-string "=>")
5449 (overlay-arrow-position (point-marker)))
5450 (unwind-protect
5451 (cond
5452 ((and no-handle interactive)
5453 (call-interactively function))
5454 (no-handle
5455 (funcall function))
5456 (interactive
5457 (call-interactively
5458 function (get-text-property (point) 'gnus-data)))
5459 (t
5460 (funcall function
5461 (get-text-property (point) 'gnus-data))))
5462 (set-marker overlay-arrow-position nil)
5463 (unless gnus-auto-select-part
5464 (gnus-select-frame-set-input-focus frame)
5465 (select-window window))))
5466 t))
5467 (if gnus-inhibit-mime-unbuttonizing
5468 ;; This is the default though the program shouldn't reach here.
5469 (error "No such part")
5470 ;; The part which doesn't have the MIME button is selected.
5471 ;; So, we display all the buttons and redo it.
5472 (let ((gnus-inhibit-mime-unbuttonizing t))
5473 (gnus-summary-show-article)
5474 (gnus-article-part-wrapper n function no-handle))))))
5476 (defun gnus-article-pipe-part (n)
5477 "Pipe MIME part N, which is the numerical prefix."
5478 (interactive "P")
5479 (gnus-article-part-wrapper n 'mm-pipe-part))
5481 (defun gnus-article-save-part (n)
5482 "Save MIME part N, which is the numerical prefix."
5483 (interactive "P")
5484 (gnus-article-part-wrapper n 'mm-save-part))
5486 (defun gnus-article-interactively-view-part (n)
5487 "View MIME part N interactively, which is the numerical prefix."
5488 (interactive "P")
5489 (gnus-article-part-wrapper n 'mm-interactively-view-part))
5491 (defun gnus-article-copy-part (n)
5492 "Copy MIME part N, which is the numerical prefix."
5493 (interactive "P")
5494 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
5496 (defun gnus-article-view-part-as-charset (n)
5497 "View MIME part N using a specified charset.
5498 N is the numerical prefix."
5499 (interactive "P")
5500 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
5502 (defun gnus-article-view-part-externally (n)
5503 "View MIME part N externally, which is the numerical prefix."
5504 (interactive "P")
5505 (gnus-article-part-wrapper n 'gnus-mime-view-part-externally))
5507 (defun gnus-article-inline-part (n)
5508 "Inline MIME part N, which is the numerical prefix."
5509 (interactive "P")
5510 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
5512 (defun gnus-article-save-part-and-strip (n)
5513 "Save MIME part N and replace it with an external body.
5514 N is the numerical prefix."
5515 (interactive "P")
5516 (gnus-article-part-wrapper n 'gnus-mime-save-part-and-strip t))
5518 (defun gnus-article-replace-part (n)
5519 "Replace MIME part N with an external body.
5520 N is the numerical prefix."
5521 (interactive "P")
5522 (gnus-article-part-wrapper n 'gnus-mime-replace-part t t))
5524 (defun gnus-article-delete-part (n)
5525 "Delete MIME part N and add some information about the removed part.
5526 N is the numerical prefix."
5527 (interactive "P")
5528 (gnus-article-part-wrapper n 'gnus-mime-delete-part t))
5530 (defun gnus-article-view-part-as-type (n)
5531 "Choose a MIME media type, and view part N as such.
5532 N is the numerical prefix."
5533 (interactive "P")
5534 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-type t))
5536 (defun gnus-article-mime-match-handle-first (condition)
5537 (if condition
5538 (let (n)
5539 (dolist (ihandle gnus-article-mime-handle-alist)
5540 (if (and (cond
5541 ((functionp condition)
5542 (funcall condition (cdr ihandle)))
5543 ((eq condition 'undisplayed)
5544 (not (or (mm-handle-undisplayer (cdr ihandle))
5545 (equal (mm-handle-media-type (cdr ihandle))
5546 "multipart/alternative"))))
5547 ((eq condition 'undisplayed-alternative)
5548 (not (mm-handle-undisplayer (cdr ihandle))))
5549 (t t))
5550 (gnus-article-goto-part (car ihandle))
5551 (or (not n) (< (car ihandle) n)))
5552 (setq n (car ihandle))))
5553 (or n 1))
5554 1))
5556 (defun gnus-article-view-part (&optional n)
5557 "View MIME part N, which is the numerical prefix.
5558 If the part is already shown, hide the part. If N is nil, view
5559 all parts."
5560 (interactive "P")
5561 (with-current-buffer gnus-article-buffer
5562 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
5563 gnus-article-mime-match-handle-function)))
5564 (when (> n (length gnus-article-mime-handle-alist))
5565 (error "No such part"))
5566 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
5567 (when (gnus-article-goto-part n)
5568 (if (equal (car handle) "multipart/alternative")
5569 (gnus-article-press-button)
5570 (when (eq (gnus-mm-display-part handle) 'internal)
5571 (gnus-set-window-start)))))))
5573 (defsubst gnus-article-mime-total-parts ()
5574 (if (bufferp (car gnus-article-mime-handles))
5575 1 ;; single part
5576 (1- (length gnus-article-mime-handles))))
5578 (defun gnus-mm-display-part (handle)
5579 "Display HANDLE and fix MIME button."
5580 (let ((id (get-text-property (point) 'gnus-part))
5581 (point (point))
5582 (inhibit-read-only t))
5583 (forward-line 1)
5584 (prog1
5585 (let ((window (selected-window))
5586 (mail-parse-charset gnus-newsgroup-charset)
5587 (mail-parse-ignored-charsets
5588 (if (gnus-buffer-live-p gnus-summary-buffer)
5589 (with-current-buffer gnus-summary-buffer
5590 gnus-newsgroup-ignored-charsets)
5591 nil)))
5592 (save-excursion
5593 (unwind-protect
5594 (let ((win (gnus-get-buffer-window (current-buffer) t))
5595 (beg (point)))
5596 (when win
5597 (select-window win))
5598 (goto-char point)
5599 (forward-line)
5600 (if (mm-handle-displayed-p handle)
5601 ;; This will remove the part.
5602 (mm-display-part handle)
5603 (save-restriction
5604 (narrow-to-region (point)
5605 (if (eobp) (point) (1+ (point))))
5606 (gnus-bind-safe-url-regexp (mm-display-part handle))
5607 ;; We narrow to the part itself and
5608 ;; then call the treatment functions.
5609 (goto-char (point-min))
5610 (forward-line 1)
5611 (narrow-to-region (point) (point-max))
5612 (gnus-treat-article
5613 nil id
5614 (gnus-article-mime-total-parts)
5615 (mm-handle-media-type handle)))))
5616 (if (window-live-p window)
5617 (select-window window)))))
5618 (goto-char point)
5619 (gnus-delete-line)
5620 (gnus-insert-mime-button
5621 handle id (list (mm-handle-displayed-p handle)))
5622 (goto-char point))))
5624 (defun gnus-article-goto-part (n)
5625 "Go to MIME part N."
5626 (when gnus-break-pages
5627 (widen))
5628 (prog1
5629 (let ((start (text-property-any (point-min) (point-max) 'gnus-part n))
5630 part handle end next handles)
5631 (when start
5632 (goto-char start)
5633 (if (setq handle (get-text-property start 'gnus-data))
5634 start
5635 ;; Go to the displayed subpart, assuming this is
5636 ;; multipart/alternative.
5637 (setq part start
5638 end (point-at-eol))
5639 (while (and (not handle)
5640 part
5641 (< part end)
5642 (setq next (text-property-not-all part end
5643 'gnus-data nil)))
5644 (setq part next
5645 handle (get-text-property part 'gnus-data))
5646 (push (cons handle part) handles)
5647 (unless (mm-handle-displayed-p handle)
5648 (setq handle nil
5649 part (text-property-any part end 'gnus-data nil))))
5650 (unless handle
5651 ;; No subpart is displayed, so we find preferred one.
5652 (setq part
5653 (cdr (assq (mm-preferred-alternative
5654 (nreverse (mapcar 'car handles)))
5655 handles))))
5656 (if part
5657 (goto-char (1+ part))
5658 start))))
5659 (when gnus-break-pages
5660 (gnus-narrow-to-page))))
5662 (defun gnus-insert-mime-button (handle gnus-tmp-id &optional displayed)
5663 (let ((gnus-tmp-name
5664 (or (mm-handle-filename handle)
5665 (mail-content-type-get (mm-handle-type handle) 'url)
5666 ""))
5667 (gnus-tmp-type (mm-handle-media-type handle))
5668 (gnus-tmp-description (or (mm-handle-description handle) ""))
5669 (gnus-tmp-dots
5670 (if (if displayed (car displayed)
5671 (mm-handle-displayed-p handle))
5672 "" "..."))
5673 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
5674 (buffer-size)))
5675 gnus-tmp-type-long b e)
5676 (when (string-match ".*/" gnus-tmp-name)
5677 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
5678 (setq gnus-tmp-type-long (concat gnus-tmp-type
5679 (and (not (equal gnus-tmp-name ""))
5680 (concat "; " gnus-tmp-name))))
5681 (unless (equal gnus-tmp-description "")
5682 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
5683 (unless (bolp)
5685 (setq b (point))
5686 (gnus-eval-format
5687 gnus-mime-button-line-format gnus-mime-button-line-format-alist
5688 `(keymap ,gnus-mime-button-map
5689 gnus-callback gnus-mm-display-part
5690 gnus-part ,gnus-tmp-id
5691 article-type annotation
5692 gnus-data ,handle))
5693 (setq e (if (bolp)
5694 ;; Exclude a newline.
5695 (1- (point))
5696 (point)))
5697 (when gnus-article-button-face
5698 (gnus-overlay-put (gnus-make-overlay b e nil t)
5699 'face gnus-article-button-face))
5700 (widget-convert-button
5701 'link b e
5702 :mime-handle handle
5703 :action 'gnus-widget-press-button
5704 :button-keymap gnus-mime-button-map
5705 :help-echo
5706 (lambda (widget)
5707 ;; Needed to properly clear the message due to a bug in
5708 ;; wid-edit (XEmacs only).
5709 (if (boundp 'help-echo-owns-message)
5710 (setq help-echo-owns-message t))
5711 (format
5712 "%S: %s the MIME part; %S: more options"
5713 (aref gnus-mouse-2 0)
5714 (if (mm-handle-displayed-p (widget-get widget :mime-handle))
5715 "hide" "show")
5716 (aref gnus-down-mouse-3 0))))))
5718 (defun gnus-widget-press-button (elems el)
5719 (goto-char (widget-get elems :from))
5720 (gnus-article-press-button))
5722 (defvar gnus-displaying-mime nil)
5724 (defun gnus-display-mime (&optional ihandles)
5725 "Display the MIME parts."
5726 (save-excursion
5727 (save-selected-window
5728 (let ((window (get-buffer-window gnus-article-buffer))
5729 (point (point)))
5730 (when window
5731 (select-window window)
5732 ;; We have to do this since selecting the window
5733 ;; may change the point. So we set the window point.
5734 (set-window-point window point)))
5735 (let ((handles ihandles)
5736 (inhibit-read-only t)
5737 handle)
5738 (cond (handles)
5739 ((setq handles (mm-dissect-buffer nil gnus-article-loose-mime))
5740 (when gnus-article-emulate-mime
5741 (mm-uu-dissect-text-parts handles)))
5742 (gnus-article-emulate-mime
5743 (setq handles (mm-uu-dissect))))
5744 (when (and (not ihandles)
5745 (not gnus-displaying-mime))
5746 ;; Top-level call; we clean up.
5747 (when gnus-article-mime-handles
5748 (mm-destroy-parts gnus-article-mime-handles)
5749 (setq gnus-article-mime-handle-alist nil));; A trick.
5750 (setq gnus-article-mime-handles handles)
5751 ;; We allow users to glean info from the handles.
5752 (when gnus-article-mime-part-function
5753 (gnus-mime-part-function handles)))
5754 (if (and handles
5755 (or (not (stringp (car handles)))
5756 (cdr handles)))
5757 (progn
5758 (when (and (not ihandles)
5759 (not gnus-displaying-mime))
5760 ;; Clean up for mime parts.
5761 (article-goto-body)
5762 (delete-region (point) (point-max)))
5763 (let ((gnus-displaying-mime t))
5764 (gnus-mime-display-part handles)))
5765 (save-restriction
5766 (article-goto-body)
5767 (narrow-to-region (point) (point-max))
5768 (gnus-treat-article nil 1 1 "text/plain")
5769 (widen)))
5770 (unless ihandles
5771 ;; Highlight the headers.
5772 (save-excursion
5773 (save-restriction
5774 (article-goto-body)
5775 (narrow-to-region (point-min) (point))
5776 (gnus-article-save-original-date
5777 (gnus-treat-article 'head)))))))
5778 ;; Cope with broken MIME messages.
5779 (goto-char (point-max))
5780 (unless (bolp)
5783 (defcustom gnus-mime-display-multipart-as-mixed nil
5786 If t, it overrides nil values of
5787 `gnus-mime-display-multipart-alternative-as-mixed' and
5788 `gnus-mime-display-multipart-related-as-mixed'."
5789 :group 'gnus-article-mime
5790 :type 'boolean)
5792 (defcustom gnus-mime-display-multipart-alternative-as-mixed nil
5794 :version "22.1"
5795 :group 'gnus-article-mime
5796 :type 'boolean)
5798 (defcustom gnus-mime-display-multipart-related-as-mixed nil
5802 `mm-discouraged-alternatives'\) images or other material inside a
5804 :version "22.1"
5805 :group 'gnus-article-mime
5806 :type 'boolean)
5808 (defun gnus-mime-display-part (handle)
5809 (cond
5810 ;; Maybe a broken MIME message.
5811 ((null handle))
5812 ;; Single part.
5813 ((not (stringp (car handle)))
5814 (gnus-mime-display-single handle))
5815 ;; User-defined multipart
5816 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
5817 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
5818 handle))
5819 ;; multipart/alternative
5820 ((and (equal (car handle) "multipart/alternative")
5821 (not (or gnus-mime-display-multipart-as-mixed
5822 gnus-mime-display-multipart-alternative-as-mixed)))
5823 (let ((id (1+ (length gnus-article-mime-handle-alist))))
5824 (push (cons id handle) gnus-article-mime-handle-alist)
5825 (gnus-mime-display-alternative (cdr handle) nil nil id)))
5826 ;; multipart/related
5827 ((and (equal (car handle) "multipart/related")
5828 (not (or gnus-mime-display-multipart-as-mixed
5829 gnus-mime-display-multipart-related-as-mixed)))
5830 ;;;!!!We should find the start part, but we just default
5831 ;;;!!!to the first part.
5832 ;;(gnus-mime-display-part (cadr handle))
5833 ;;;!!! Most multipart/related is an HTML message plus images.
5834 ;;;!!! Unfortunately we are unable to let W3 display those
5835 ;;;!!! included images, so we just display it as a mixed multipart.
5836 ;;(gnus-mime-display-mixed (cdr handle))
5837 ;;;!!! No, w3 can display everything just fine.
5838 (gnus-mime-display-part (cadr handle)))
5839 ((equal (car handle) "multipart/signed")
5840 (gnus-add-wash-type 'signed)
5841 (gnus-mime-display-security handle))
5842 ((equal (car handle) "multipart/encrypted")
5843 (gnus-add-wash-type 'encrypted)
5844 (gnus-mime-display-security handle))
5845 ;; Other multiparts are handled like multipart/mixed.
5846 (t
5847 (gnus-mime-display-mixed (cdr handle)))))
5849 (defun gnus-mime-part-function (handles)
5850 (if (stringp (car handles))
5851 (mapcar 'gnus-mime-part-function (cdr handles))
5852 (funcall gnus-article-mime-part-function handles)))
5854 (defun gnus-mime-display-mixed (handles)
5855 (mapcar 'gnus-mime-display-part handles))
5857 (defun gnus-mime-display-single (handle)
5858 (let ((type (mm-handle-media-type handle))
5859 (ignored gnus-ignored-mime-types)
5860 (not-attachment t)
5861 (move nil)
5862 display text)
5863 (catch 'ignored
5864 (progn
5865 (while ignored
5866 (when (string-match (pop ignored) type)
5867 (throw 'ignored nil)))
5868 (if (and (not (and (if (gnus-buffer-live-p gnus-summary-buffer)
5869 (with-current-buffer gnus-summary-buffer
5870 gnus-inhibit-images)
5871 gnus-inhibit-images)
5873 (setq not-attachment
5874 (and (not (mm-inline-override-p handle))
5875 (or (not (mm-handle-disposition handle))
5876 (equal (car (mm-handle-disposition handle))
5877 "inline")
5878 (mm-attachment-override-p handle))))
5879 (mm-automatic-display-p handle)
5880 (or (and
5881 (mm-inlinable-p handle)
5882 (mm-inlined-p handle))
5883 (mm-automatic-external-display-p type)))
5884 (setq display t)
5885 (when (equal (mm-handle-media-supertype handle) "text")
5886 (setq text t)))
5887 (let ((id (1+ (length gnus-article-mime-handle-alist)))
5888 beg)
5889 (push (cons id handle) gnus-article-mime-handle-alist)
5890 (when (and display
5891 (equal (mm-handle-media-supertype handle) "message"))
5892 (insert-char
5894 (cond ((not (bolp)) 2)
5896 (t 1))))
5897 (when (or (not display)
5898 (not (gnus-unbuttonized-mime-type-p type))
5899 (eq id gnus-mime-buttonized-part-id))
5900 (gnus-insert-mime-button
5901 handle id (list (or display (and not-attachment text))))
5902 (gnus-article-insert-newline)
5903 ;; Remember modify the number of forward lines.
5904 (setq move t))
5905 (setq beg (point))
5906 (cond
5907 (display
5908 (when move
5909 (forward-line -1)
5910 (setq beg (point)))
5911 (let ((mail-parse-charset gnus-newsgroup-charset)
5912 (mail-parse-ignored-charsets
5913 (save-excursion (condition-case ()
5914 (set-buffer gnus-summary-buffer)
5915 (error))
5916 gnus-newsgroup-ignored-charsets)))
5917 (gnus-bind-safe-url-regexp (mm-display-part handle t)))
5918 (goto-char (point-max)))
5919 ((and text not-attachment)
5920 (when move
5921 (forward-line -1)
5922 (setq beg (point)))
5923 (gnus-article-insert-newline)
5924 (mm-display-inline handle)
5925 (goto-char (point-max))))
5926 ;; Do highlighting.
5927 (save-excursion
5928 (save-restriction
5929 (narrow-to-region beg (point))
5930 (if (eq handle gnus-article-mime-handles)
5931 ;; The format=flowed case.
5932 (gnus-treat-article nil 1 1 (mm-handle-media-type handle))
5933 ;; Don't count signature parts that are never displayed.
5934 ;; The part number should be re-calculated supposing this
5935 ;; might be a message/rfc822 part.
5936 (let (handles)
5937 (dolist (part gnus-article-mime-handles)
5938 (unless (or (stringp part)
5939 (equal (car (mm-handle-type part))
5940 "application/pgp-signature"))
5941 (push part handles)))
5942 (gnus-treat-article
5943 nil (length (memq handle handles)) (length handles)
5944 (mm-handle-media-type handle)))))))))))
5946 (defun gnus-unbuttonized-mime-type-p (type)
5947 "Say whether TYPE is to be unbuttonized."
5948 (unless gnus-inhibit-mime-unbuttonizing
5949 (when (catch 'found
5950 (let ((types gnus-unbuttonized-mime-types))
5951 (while types
5952 (when (string-match (pop types) type)
5953 (throw 'found t)))))
5954 (not (catch 'found
5955 (let ((types gnus-buttonized-mime-types))
5956 (while types
5957 (when (string-match (pop types) type)
5958 (throw 'found t)))))))))
5960 (defun gnus-article-insert-newline ()
5961 "Insert a newline, but mark it as undeletable."
5962 (gnus-put-text-property
5965 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
5966 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
5967 (ihandles handles)
5968 (point (point))
5969 handle (inhibit-read-only t) from props begend not-pref)
5970 (save-window-excursion
5971 (save-restriction
5972 (when ibegend
5973 (narrow-to-region (car ibegend)
5974 (or (cdr ibegend)
5975 (progn
5976 (goto-char (car ibegend))
5977 (forward-line 2)
5978 (point))))
5979 (delete-region (point-min) (point-max))
5980 (mm-remove-parts handles))
5981 (setq begend (list (point-marker)))
5982 ;; Do the toggle.
5983 (unless (setq not-pref (cadr (member preferred ihandles)))
5984 (setq not-pref (car ihandles)))
5985 (when (or ibegend
5986 (not preferred)
5987 (not (gnus-unbuttonized-mime-type-p
5988 "multipart/alternative")))
5989 (gnus-add-text-properties
5990 (setq from (point))
5991 (progn
5992 (insert (format "%d. " id))
5993 (point))
5994 `(gnus-callback
5995 (lambda (handles)
5996 (unless ,(not ibegend)
5997 (setq gnus-article-mime-handle-alist
5998 ',gnus-article-mime-handle-alist))
5999 (gnus-mime-display-alternative
6000 ',ihandles ',not-pref ',begend ,id))
6001 keymap ,gnus-mime-button-map
6002 ,gnus-mouse-face-prop ,gnus-article-mouse-face
6003 face ,gnus-article-button-face
6004 gnus-part ,id
6005 article-type multipart))
6006 (widget-convert-button 'link from (point)
6007 :action 'gnus-widget-press-button
6008 :button-keymap gnus-widget-button-keymap)
6009 ;; Do the handles
6010 (while (setq handle (pop handles))
6011 (gnus-add-text-properties
6012 (setq from (point))
6013 (progn
6014 (insert (format "(%c) %-18s"
6015 (if (equal handle preferred) ?* ? )
6016 (mm-handle-media-type handle)))
6017 (point))
6018 `(gnus-callback
6019 (lambda (handles)
6020 (unless ,(not ibegend)
6021 (setq gnus-article-mime-handle-alist
6022 ',gnus-article-mime-handle-alist))
6023 (gnus-mime-display-alternative
6024 ',ihandles ',handle ',begend ,id))
6025 keymap ,gnus-mime-button-map
6026 ,gnus-mouse-face-prop ,gnus-article-mouse-face
6027 face ,gnus-article-button-face
6028 gnus-part ,id
6029 gnus-data ,handle))
6030 (widget-convert-button 'link from (point)
6031 :action 'gnus-widget-press-button
6032 :button-keymap gnus-widget-button-keymap)
6033 (insert " "))
6035 (when preferred
6036 (if (stringp (car preferred))
6037 (gnus-display-mime preferred)
6038 (let ((mail-parse-charset gnus-newsgroup-charset)
6039 (mail-parse-ignored-charsets
6040 (with-current-buffer gnus-summary-buffer
6041 gnus-newsgroup-ignored-charsets)))
6042 (gnus-bind-safe-url-regexp (mm-display-part preferred))
6043 ;; Do highlighting.
6044 (save-excursion
6045 (save-restriction
6046 (narrow-to-region (car begend) (point-max))
6047 (gnus-treat-article
6048 nil (length gnus-article-mime-handle-alist)
6049 (gnus-article-mime-total-parts)
6050 (mm-handle-media-type preferred))))))
6051 (goto-char (point-max))
6052 (setcdr begend (point-marker)))))
6053 (when ibegend
6054 (goto-char point))))
6056 (defconst gnus-article-wash-status-strings
6057 (let ((alist '((cite "c" "Possible hidden citation text"
6058 " " "All citation text visible")
6059 (headers "h" "Hidden headers"
6060 " " "All headers visible.")
6061 (pgp "p" "Encrypted or signed message status hidden"
6062 " " "No hidden encryption nor digital signature status")
6063 (signature "s" "Signature has been hidden"
6064 " " "Signature is visible")
6065 (overstrike "o" "Overstrike (^H) characters applied"
6066 " " "No overstrike characters applied")
6067 (emphasis "e" "/*_Emphasis_*/ characters applied"
6068 " " "No /*_emphasis_*/ characters applied")))
6069 result)
6070 (dolist (entry alist result)
6071 (let ((key (nth 0 entry))
6072 (on (copy-sequence (nth 1 entry)))
6073 (on-help (nth 2 entry))
6074 (off (copy-sequence (nth 3 entry)))
6075 (off-help (nth 4 entry)))
6076 (put-text-property 0 1 'help-echo on-help on)
6077 (put-text-property 0 1 'help-echo off-help off)
6078 (push (list key on off) result))))
6079 "Alist of strings describing wash status in the mode line.
6080 Each entry has the form (KEY ON OF), where the KEY is a symbol
6081 representing the particular washing function, ON is the string to use
6082 in the article mode line when the washing function is active, and OFF
6083 is the string to use when it is inactive.")
6085 (defun gnus-article-wash-status-entry (key value)
6086 (let ((entry (assoc key gnus-article-wash-status-strings)))
6087 (if value (nth 1 entry) (nth 2 entry))))
6089 (defun gnus-article-wash-status ()
6090 "Return a string which display status of article washing."
6091 (with-current-buffer gnus-article-buffer
6092 (let ((cite (memq 'cite gnus-article-wash-types))
6093 (headers (memq 'headers gnus-article-wash-types))
6094 (boring (memq 'boring-headers gnus-article-wash-types))
6095 (pgp (memq 'pgp gnus-article-wash-types))
6096 (pem (memq 'pem gnus-article-wash-types))
6097 (signed (memq 'signed gnus-article-wash-types))
6098 (encrypted (memq 'encrypted gnus-article-wash-types))
6099 (signature (memq 'signature gnus-article-wash-types))
6100 (overstrike (memq 'overstrike gnus-article-wash-types))
6101 (emphasis (memq 'emphasis gnus-article-wash-types)))
6102 (concat
6103 (gnus-article-wash-status-entry 'cite cite)
6104 (gnus-article-wash-status-entry 'headers (or headers boring))
6105 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
6106 (gnus-article-wash-status-entry 'signature signature)
6107 (gnus-article-wash-status-entry 'overstrike overstrike)
6108 (gnus-article-wash-status-entry 'emphasis emphasis)))))
6110 (defun gnus-add-wash-type (type)
6111 "Add a washing of TYPE to the current status."
6112 (add-to-list 'gnus-article-wash-types type))
6114 (defun gnus-delete-wash-type (type)
6115 "Add a washing of TYPE to the current status."
6116 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
6118 (defun gnus-add-image (category image)
6119 "Add IMAGE of CATEGORY to the list of displayed images."
6120 (let ((entry (assq category gnus-article-image-alist)))
6121 (unless entry
6122 (setq entry (list category))
6123 (push entry gnus-article-image-alist))
6124 (nconc entry (list image))))
6126 (defun gnus-delete-images (category)
6127 "Delete all images in CATEGORY."
6128 (let ((entry (assq category gnus-article-image-alist)))
6129 (dolist (image (cdr entry))
6130 (gnus-remove-image image category))
6131 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
6132 (gnus-delete-wash-type category)))
6134 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
6136 (defun gnus-article-maybe-hide-headers ()
6137 "Hide unwanted headers if `gnus-have-all-headers' is nil.
6138 Provided for backwards compatibility."
6139 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
6140 (not (with-current-buffer gnus-summary-buffer
6141 gnus-have-all-headers)))
6142 (not gnus-inhibit-hiding))
6143 (gnus-article-hide-headers)))
6145 (declare-function shr-put-image "shr" (data alt))
6147 (defun gnus-shr-put-image (data alt)
6148 "Put image DATA with a string ALT. Enable image to be deleted."
6149 (let ((image (shr-put-image data (propertize (or alt "*")
6150 'gnus-image-category 'shr))))
6151 (when image
6152 (gnus-add-image 'shr image))))
6154 ;;; Article savers.
6156 (defun gnus-output-to-file (file-name)
6157 "Append the current article to a file named FILE-NAME.
6158 If `gnus-article-save-coding-system' is non-nil, it is used to encode
6159 text and used as the value of the coding cookie which is added to the
6160 top of a file. Otherwise, this function saves a raw article without
6161 the coding cookie."
6162 (let* ((artbuf (current-buffer))
6163 (file-name-coding-system nnmail-pathname-coding-system)
6164 (coding gnus-article-save-coding-system)
6165 (coding-system-for-read (if coding
6166 nil ;; Rely on the coding cookie.
6167 mm-text-coding-system))
6168 (coding-system-for-write (or coding
6169 mm-text-coding-system-for-write
6170 mm-text-coding-system))
6171 (exists (file-exists-p file-name)))
6172 (with-temp-buffer
6173 (when exists
6174 (insert-file-contents file-name)
6175 (goto-char (point-min))
6176 ;; Remove the existing coding cookie.
6178 (delete-region (match-beginning 0) (match-end 0))))
6179 (goto-char (point-max))
6180 (insert-buffer-substring artbuf)
6181 ;; Append newline at end of the buffer as separator, and then
6182 ;; save it to file.
6183 (goto-char (point-max))
6185 (when coding
6186 ;; If the coding system is not suitable to encode the text,
6187 ;; ask a user for a proper one.
6188 (when (fboundp 'select-safe-coding-system)
6189 (setq coding (coding-system-base
6190 (save-window-excursion
6191 (select-safe-coding-system (point-min) (point-max)
6192 coding))))
6193 (setq coding-system-for-write
6194 (or (cdr (assq coding '((mule-utf-8 . utf-8))))
6195 coding)))
6196 (goto-char (point-min))
6197 ;; Add the coding cookie.
6199 coding-system-for-write)))
6200 (if exists
6201 (progn
6202 (write-region (point-min) (point-max) file-name nil 'no-message)
6203 (message "Appended to %s" file-name))
6204 (write-region (point-min) (point-max) file-name))))
6205 t)
6207 (defun gnus-narrow-to-page (&optional arg)
6208 "Narrow the article buffer to a page.
6209 If given a numerical ARG, move forward ARG pages."
6210 (interactive "P")
6211 (setq arg (if arg (prefix-numeric-value arg) 0))
6212 (with-current-buffer gnus-article-buffer
6213 (widen)
6214 ;; Remove any old next/prev buttons.
6215 (when (gnus-visual-p 'page-marker)
6216 (let ((inhibit-read-only t))
6217 (gnus-remove-text-with-property 'gnus-prev)
6218 (gnus-remove-text-with-property 'gnus-next)))
6219 (let (st nd pt)
6220 (when (save-excursion
6221 (cond ((< arg 0)
6222 (if (re-search-backward page-delimiter nil 'move (abs arg))
6223 (prog1
6224 (setq nd (match-beginning 0)
6225 pt nd)
6226 (when (re-search-backward page-delimiter nil t)
6227 (setq st (match-end 0))))
6228 (when (re-search-forward page-delimiter nil t)
6229 (setq nd (match-beginning 0)
6230 pt (point-min)))))
6231 ((> arg 0)
6232 (if (re-search-forward page-delimiter nil 'move arg)
6233 (prog1
6234 (setq st (match-end 0)
6235 pt st)
6236 (when (re-search-forward page-delimiter nil t)
6237 (setq nd (match-beginning 0))))
6238 (when (re-search-backward page-delimiter nil t)
6239 (setq st (match-end 0)
6240 pt (point-max)))))
6241 (t
6242 (when (re-search-backward page-delimiter nil t)
6243 (goto-char (setq st (match-end 0))))
6244 (when (re-search-forward page-delimiter nil t)
6245 (setq nd (match-beginning 0)))
6246 (or st nd))))
6247 (setq gnus-page-broken t)
6248 (when pt (goto-char pt))
6249 (narrow-to-region (or st (point-min)) (or nd (point-max)))
6250 (when (gnus-visual-p 'page-marker)
6251 (save-excursion
6252 (when nd
6253 (goto-char nd)
6254 (gnus-insert-next-page-button))
6255 (when st
6256 (goto-char st)
6257 (gnus-insert-prev-page-button))))))))
6259 ;; Article mode commands
6261 (defun gnus-article-goto-next-page ()
6262 "Show the next page of the article."
6263 (interactive)
6264 (when (gnus-article-next-page)
6265 (goto-char (point-min))
6266 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
6269 (defun gnus-article-goto-prev-page ()
6270 "Show the previous page of the article."
6271 (interactive)
6272 (if (save-restriction (widen) (bobp)) ;; Real beginning-of-buffer?
6273 (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
6274 (gnus-article-prev-page nil)))
6276 ;; This is cleaner but currently breaks `gnus-pick-mode':
6277 ;;
6278 ;; (defun gnus-article-goto-next-page ()
6279 ;; "Show the next page of the article."
6280 ;; (interactive)
6281 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6282 ;; (gnus-summary-next-page)))
6283 ;;
6284 ;; (defun gnus-article-goto-prev-page ()
6285 ;; "Show the next page of the article."
6286 ;; (interactive)
6287 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
6288 ;; (gnus-summary-prev-page)))
6290 (defun gnus-article-next-page (&optional lines)
6291 "Show the next page of the current article.
6292 If end of article, return non-nil. Otherwise return nil.
6293 Argument LINES specifies lines to be scrolled up."
6294 (interactive "p")
6295 (move-to-window-line (if (featurep 'xemacs) -1 (- -1 scroll-margin)))
6296 (if (and (not (and gnus-article-over-scroll
6297 (> (count-lines (window-start) (point-max))
6298 (if (featurep 'xemacs)
6299 (or lines (1- (window-height)))
6300 (+ (or lines (1- (window-height))) scroll-margin)))))
6301 (save-excursion
6302 (end-of-line)
6303 (and (pos-visible-in-window-p) ;Not continuation line.
6304 (>= (point) (point-max)))))
6305 ;; Nothing in this page.
6306 (if (or (not gnus-page-broken)
6307 (save-excursion
6308 (save-restriction
6309 (widen)
6310 (forward-line)
6311 (eobp)))) ;Real end-of-buffer?
6312 (progn
6313 (when gnus-article-over-scroll
6314 (gnus-article-next-page-1 lines))
6315 t) ;Nothing more.
6316 (gnus-narrow-to-page 1) ;Go to next page.
6317 nil)
6318 ;; More in this page.
6319 (gnus-article-next-page-1 lines)
6320 nil))
6322 (defun gnus-article-beginning-of-window ()
6323 "Move point to the beginning of the window.
6324 In Emacs, the point is placed at the line number which `scroll-margin'
6325 specifies."
6326 (if (featurep 'xemacs)
6327 (move-to-window-line 0)
6328 ;; There is an obscure bug in Emacs that makes it impossible to
6329 ;; scroll past big pictures in the article buffer. Try to fix
6330 ;; this by adding a sanity check by counting the lines visible.
6331 (when (> (count-lines (window-start) (window-end)) 30)
6332 (move-to-window-line
6333 (min (max 0 scroll-margin)
6334 (max 1 (- (window-height)
6335 (if mode-line-format 1 0)
6336 (if header-line-format 1 0)
6337 2)))))))
6339 (defun gnus-article-next-page-1 (lines)
6340 (condition-case ()
6341 (let ((scroll-in-place nil)
6342 (auto-window-vscroll nil))
6343 (scroll-up lines))
6344 (end-of-buffer
6345 ;; Long lines may cause an end-of-buffer error.
6346 (goto-char (point-max))))
6347 (gnus-article-beginning-of-window))
6349 (defun gnus-article-prev-page (&optional lines)
6350 "Show previous page of current article.
6351 Argument LINES specifies lines to be scrolled down."
6352 (interactive "p")
6353 (move-to-window-line 0)
6354 (if (and gnus-page-broken
6355 (bobp)
6356 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
6357 (progn
6358 (gnus-narrow-to-page -1) ;Go to previous page.
6359 (goto-char (point-max))
6360 (recenter (if gnus-article-over-scroll
6361 (if lines
6362 (max (if (featurep 'xemacs)
6363 lines
6364 (+ lines scroll-margin))
6365 3)
6366 (- (window-height) 2))
6367 -1)))
6368 (prog1
6369 (condition-case ()
6370 (let ((scroll-in-place nil))
6371 (scroll-down lines))
6372 (beginning-of-buffer
6373 (goto-char (point-min))))
6374 (gnus-article-beginning-of-window))))
6376 (defun gnus-article-only-boring-p ()
6377 "Decide whether there is only boring text remaining in the article.
6379 not have a face in `gnus-article-boring-faces'."
6380 (when (and gnus-article-skip-boring
6381 (boundp 'gnus-article-boring-faces)
6382 (symbol-value 'gnus-article-boring-faces))
6383 (save-excursion
6384 (let ((inhibit-point-motion-hooks t))
6385 (catch 'only-boring
6387 (forward-char -1)
6388 (when (not (gnus-intersection
6389 (gnus-faces-at (point))
6390 (symbol-value 'gnus-article-boring-faces)))
6391 (throw 'only-boring nil)))
6392 (throw 'only-boring t))))))
6394 (defun gnus-article-refer-article ()
6395 "Read article specified by message-id around point."
6396 (interactive)
6397 (save-excursion
6401 (let ((msg-id (concat "<" (match-string 0) ">")))
6402 (set-buffer gnus-summary-buffer)
6403 (gnus-summary-refer-article msg-id))
6404 (error "No references around point"))))
6406 (defun gnus-article-show-summary ()
6407 "Reconfigure windows to show summary buffer."
6408 (interactive)
6409 (if (not (gnus-buffer-live-p gnus-summary-buffer))
6410 (error "There is no summary buffer for this article buffer")
6411 (gnus-article-set-globals)
6412 (gnus-configure-windows 'article)
6413 (gnus-summary-goto-subject gnus-current-article)
6414 (gnus-summary-position-point)))
6416 (defun gnus-article-describe-briefly ()
6417 "Describe article mode commands briefly."
6418 (interactive)
6419 (gnus-message 6 "%s" (substitute-command-keys "\\<gnus-article-mode-map>\\[gnus-article-goto-next-page]:Next page \\[gnus-article-goto-prev-page]:Prev page \\[gnus-article-show-summary]:Show summary \\[gnus-info-find-node]:Run Info \\[gnus-article-describe-briefly]:This help")))
6421 (defun gnus-article-check-buffer ()
6422 "Beep if not in an article buffer."
6423 (unless (equal major-mode 'gnus-article-mode)
6424 (error "Command invoked outside of a Gnus article buffer")))
6426 (defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
6427 "Read a summary buffer key sequence and execute it from the article buffer."
6428 (interactive "P")
6429 (gnus-article-check-buffer)
6430 (let ((nosaves
6431 '("q" "Q" "c" "r" "\C-c\C-f" "m" "a" "f"
6432 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
6433 "=" "^" "\M-^" "|"))
6434 (nosave-but-article
6436 "An" "Ap" [?A (meta return)] [?A delete]))
6437 (nosave-in-article
6438 '("AS" "\C-d"))
6439 (up-to-top
6440 '("n" "Gn" "p" "Gp"))
6441 keys new-sum-point)
6442 (with-current-buffer gnus-article-current-summary
6443 (let (gnus-pick-mode)
6444 (setq unread-command-events (nconc unread-command-events
6445 (list (or key last-command-event)))
6446 keys (if (featurep 'xemacs)
6447 (events-to-keys (read-key-sequence nil t))
6448 (read-key-sequence nil t)))))
6450 (message "")
6452 (cond
6453 ((eq (aref keys (1- (length keys))) ?\C-h)
6454 (gnus-article-describe-bindings (substring keys 0 -1)))
6455 ((or (member keys nosaves)
6456 (member keys nosave-but-article)
6457 (member keys nosave-in-article))
6458 (let (func)
6459 (save-window-excursion
6460 (pop-to-buffer gnus-article-current-summary)
6461 ;; We disable the pick minor mode commands.
6462 (let (gnus-pick-mode)
6463 (setq func (key-binding keys t))))
6464 (if (or (not func)
6465 (numberp func))
6466 (ding)
6467 (unless (member keys nosave-in-article)
6468 (set-buffer gnus-article-current-summary))
6469 (when (get func 'disabled)
6470 (error "Function %s disabled" func))
6471 (call-interactively func)
6472 (setq new-sum-point (point)))
6473 (when (member keys nosave-but-article)
6474 (pop-to-buffer gnus-article-buffer))))
6475 (t
6476 ;; These commands should restore window configuration.
6477 (let ((obuf (current-buffer))
6478 (owin (current-window-configuration))
6479 win func in-buffer selected new-sum-start new-sum-hscroll err)
6480 (cond (not-restore-window
6481 (pop-to-buffer gnus-article-current-summary)
6482 (setq win (selected-window)))
6483 ((setq win (get-buffer-window gnus-article-current-summary))
6484 (select-window win))
6485 (t
6486 (let ((summary-buffer gnus-article-current-summary))
6487 (gnus-configure-windows 'article)
6488 (unless (setq win (get-buffer-window summary-buffer 'visible))
6489 (let ((gnus-buffer-configuration
6490 '((article ((vertical 1.0
6491 (summary 0.25 point)
6492 (article 1.0)))))))
6493 (gnus-configure-windows 'article))
6494 (setq win (get-buffer-window summary-buffer 'visible)))
6495 (gnus-select-frame-set-input-focus (window-frame win))
6496 (select-window win))))
6497 (setq in-buffer (current-buffer))
6498 ;; We disable the pick minor mode commands.
6499 (setq func (let (gnus-pick-mode)
6500 (key-binding keys t)))
6501 (when (get func 'disabled)
6502 (error "Function %s disabled" func))
6503 (if (and func
6504 (functionp func)
6505 (condition-case code
6506 (progn
6507 (call-interactively func)
6508 t)
6509 (error
6510 (setq err code)
6511 nil)))
6512 (progn
6513 (when (eq win (selected-window))
6514 (setq new-sum-point (point)
6515 new-sum-start (window-start win)
6516 new-sum-hscroll (window-hscroll win)))
6517 (when (or (eq in-buffer (current-buffer))
6518 (when (eq obuf (current-buffer))
6519 (set-buffer in-buffer)
6520 t))
6521 (setq selected (gnus-summary-select-article))
6522 (set-buffer obuf)
6523 (unless not-restore-window
6524 (set-window-configuration owin))
6525 (when (and (eq selected 'old)
6526 new-sum-point)
6527 (set-window-start (get-buffer-window (current-buffer))
6528 1)
6529 (set-window-point (get-buffer-window (current-buffer))
6530 (if (article-goto-body)
6531 (1- (point))
6532 (point))))
6533 (when (and (not not-restore-window)
6534 new-sum-point
6535 (window-live-p win)
6536 (with-current-buffer (window-buffer win)
6537 (eq major-mode 'gnus-summary-mode)))
6538 (set-window-point win new-sum-point)
6539 (set-window-start win new-sum-start)
6540 (set-window-hscroll win new-sum-hscroll))))
6541 (set-window-configuration owin)
6542 (if err
6543 (signal (car err) (cdr err))
6544 (ding))))))))
6546 (defun gnus-article-read-summary-send-keys ()
6547 (interactive)
6548 (let ((unread-command-events (list (gnus-character-to-event ?S))))
6549 (gnus-article-read-summary-keys)))
6551 (defun gnus-article-describe-key (key)
6552 "Display documentation of the function invoked by KEY.
6553 KEY is a string or a vector."
6554 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6555 (read-key-sequence "Describe key: "))))
6556 (gnus-article-check-buffer)
6557 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6558 gnus-article-read-summary-send-keys))
6559 (with-current-buffer gnus-article-current-summary
6560 (setq unread-command-events
6561 (if (featurep 'xemacs)
6562 (append key nil)
6563 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6564 (list 'meta (- x 128))
6565 x))
6566 key)))
6567 (let ((cursor-in-echo-area t)
6568 gnus-pick-mode)
6569 (describe-key (read-key-sequence nil t))))
6570 (describe-key key)))
6572 (defun gnus-article-describe-key-briefly (key &optional insert)
6573 "Display documentation of the function invoked by KEY.
6574 KEY is a string or a vector."
6575 (interactive (list (let ((cursor-in-echo-area t)) ;; better for XEmacs.
6576 (read-key-sequence "Describe key: "))
6577 current-prefix-arg))
6578 (gnus-article-check-buffer)
6579 (if (memq (key-binding key t) '(gnus-article-read-summary-keys
6580 gnus-article-read-summary-send-keys))
6581 (with-current-buffer gnus-article-current-summary
6582 (setq unread-command-events
6583 (if (featurep 'xemacs)
6584 (append key nil)
6585 (mapcar (lambda (x) (if (and (integerp x) (>= x 128))
6586 (list 'meta (- x 128))
6587 x))
6588 key)))
6589 (let ((cursor-in-echo-area t)
6590 gnus-pick-mode)
6591 (describe-key-briefly (read-key-sequence nil t) insert)))
6592 (describe-key-briefly key insert)))
6594 ;;`gnus-agent-mode' in gnus-agent.el will define it.
6595 (defvar gnus-agent-summary-mode)
6596 (defvar gnus-draft-mode)
6597 ;; Calling help-buffer will autoload help-mode.
6598 (defvar help-xref-stack-item)
6599 ;; Emacs 22 doesn't load it in the batch mode.
6600 (eval-when-compile
6601 (autoload 'help-buffer "help-mode"))
6603 (defun gnus-article-describe-bindings (&optional prefix)
6604 "Show a list of all defined keys, and their definitions.
6605 The optional argument PREFIX, if non-nil, should be a key sequence;
6606 then we display only bindings that start with that prefix."
6607 (interactive)
6608 (gnus-article-check-buffer)
6609 (let ((keymap (copy-keymap gnus-article-mode-map))
6610 (map (copy-keymap gnus-article-send-map))
6611 (sumkeys (where-is-internal 'gnus-article-read-summary-keys))
6612 parent agent draft)
6613 (define-key keymap "S" map)
6614 (define-key map [t] nil)
6615 (with-current-buffer gnus-article-current-summary
6616 (set-keymap-parent
6617 keymap
6618 (if (setq parent (keymap-parent gnus-article-mode-map))
6619 (prog1
6620 (setq parent (copy-keymap parent))
6621 (set-keymap-parent parent (current-local-map)))
6622 (current-local-map)))
6623 (set-keymap-parent map (key-binding "S"))
6624 (let (key def gnus-pick-mode)
6625 (while sumkeys
6626 (setq key (pop sumkeys))
6627 (cond ((and (vectorp key) (= (length key) 1)
6628 (consp (setq def (aref key 0)))
6629 (numberp (car def)) (numberp (cdr def)))
6630 (when (< (max (car def) (cdr def)) 128)
6631 (setq sumkeys
6632 (append (mapcar
6633 #'vector
6634 (nreverse (gnus-uncompress-range def)))
6635 sumkeys))))
6636 ((setq def (key-binding key))
6637 (unless (eq def 'undefined)
6638 (define-key keymap key def))))))
6639 (when (boundp 'gnus-agent-summary-mode)
6640 (setq agent gnus-agent-summary-mode))
6641 (when (boundp 'gnus-draft-mode)
6642 (setq draft gnus-draft-mode)))
6643 (with-temp-buffer
6644 (use-local-map keymap)
6645 (set (make-local-variable 'gnus-agent-summary-mode) agent)
6646 (set (make-local-variable 'gnus-draft-mode) draft)
6647 (describe-bindings prefix))
6648 (let ((item `((lambda (prefix)
6649 (with-current-buffer ,(current-buffer)
6650 (gnus-article-describe-bindings prefix)))
6651 ,prefix)))
6652 (with-current-buffer (let (help-xref-following) (help-buffer))
6653 (setq help-xref-stack-item item)))))
6655 (defun gnus-article-reply-with-original (&optional wide)
6656 "Start composing a reply mail to the current message.
6657 The text in the region will be yanked. If the region isn't active,
6658 the entire article will be yanked."
6659 (interactive)
6660 (let ((article (cdr gnus-article-current))
6661 contents)
6662 (if (not (gnus-region-active-p))
6663 (with-current-buffer gnus-summary-buffer
6664 (gnus-summary-reply (list (list article)) wide))
6665 (setq contents (buffer-substring (point) (mark t)))
6666 ;; Deactivate active regions.
6667 (when (and (boundp 'transient-mark-mode)
6668 transient-mark-mode)
6669 (setq mark-active nil))
6670 (with-current-buffer gnus-summary-buffer
6671 (gnus-summary-reply
6672 (list (list article contents)) wide)))))
6674 (defun gnus-article-wide-reply-with-original ()
6675 "Start composing a wide reply mail to the current message.
6676 The text in the region will be yanked. If the region isn't active,
6677 the entire article will be yanked."
6678 (interactive)
6679 (gnus-article-reply-with-original t))
6681 (defun gnus-article-followup-with-original ()
6682 "Compose a followup to the current article.
6683 The text in the region will be yanked. If the region isn't active,
6684 the entire article will be yanked."
6685 (interactive)
6686 (let ((article (cdr gnus-article-current))
6687 contents)
6688 (if (not (gnus-region-active-p))
6689 (with-current-buffer gnus-summary-buffer
6690 (gnus-summary-followup (list (list article))))
6691 (setq contents (buffer-substring (point) (mark t)))
6692 ;; Deactivate active regions.
6693 (when (and (boundp 'transient-mark-mode)
6694 transient-mark-mode)
6695 (setq mark-active nil))
6696 (with-current-buffer gnus-summary-buffer
6697 (gnus-summary-followup
6698 (list (list article contents)))))))
6700 (defun gnus-article-hide (&optional arg force)
6701 "Hide all the gruft in the current article.
6702 This means that signatures, cited text and (some) headers will be
6703 hidden.
6704 If given a prefix, show the hidden text instead."
6705 (interactive (append (gnus-article-hidden-arg) (list 'force)))
6706 (gnus-article-hide-headers arg)
6707 (gnus-article-hide-list-identifiers arg)
6708 (gnus-article-hide-citation-maybe arg force)
6709 (gnus-article-hide-signature arg))
6711 (defun gnus-article-maybe-highlight ()
6712 "Do some article highlighting if article highlighting is requested."
6713 (when (gnus-visual-p 'article-highlight 'highlight)
6714 (gnus-article-highlight-some)))
6716 (defun gnus-check-group-server ()
6717 ;; Make sure the connection to the server is alive.
6718 (unless (gnus-server-opened
6719 (gnus-find-method-for-group gnus-newsgroup-name))
6720 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
6721 (gnus-request-group gnus-newsgroup-name t)))
6723 (eval-when-compile
6724 (autoload 'nneething-get-file-name "nneething"))
6726 (defun gnus-request-article-this-buffer (article group)
6727 "Get an article and insert it into this buffer."
6728 (let (do-update-line sparse-header)
6729 (prog1
6730 (save-excursion
6731 (erase-buffer)
6732 (gnus-kill-all-overlays)
6733 (setq group (or group gnus-newsgroup-name))
6735 ;; Using `gnus-request-article' directly will insert the article into
6736 ;; `nntp-server-buffer' - so we'll save some time by not having to
6737 ;; copy it from the server buffer into the article buffer.
6739 ;; We only request an article by message-id when we do not have the
6740 ;; headers for it, so we'll have to get those.
6741 (when (stringp article)
6742 (gnus-read-header article))
6744 ;; If the article number is negative, that means that this article
6745 ;; doesn't belong in this newsgroup (possibly), so we find its
6746 ;; message-id and request it by id instead of number.
6747 (when (and (numberp article)
6748 gnus-summary-buffer
6749 (get-buffer gnus-summary-buffer)
6750 (gnus-buffer-exists-p gnus-summary-buffer))
6751 (with-current-buffer gnus-summary-buffer
6752 (let ((header (gnus-summary-article-header article)))
6753 (when (< article 0)
6754 (cond
6755 ((memq article gnus-newsgroup-sparse)
6756 ;; This is a sparse gap article.
6757 (setq do-update-line article)
6758 (setq article (mail-header-id header))
6759 (setq sparse-header (gnus-read-header article))
6760 (setq gnus-newsgroup-sparse
6761 (delq article gnus-newsgroup-sparse)))
6762 ((vectorp header)
6763 ;; It's a real article.
6764 (setq article (mail-header-id header)))
6765 (t
6766 ;; It is an extracted pseudo-article.
6767 (setq article 'pseudo)
6768 (gnus-request-pseudo-article header))))
6770 (let ((method (gnus-find-method-for-group
6771 gnus-newsgroup-name)))
6772 (when (and (eq (car method) 'nneething)
6773 (vectorp header))
6774 (let ((dir (nneething-get-file-name
6775 (mail-header-id header))))
6776 (when (and (stringp dir)
6777 (file-directory-p dir))
6778 (setq article 'nneething)
6779 (gnus-group-enter-directory dir))))))))
6781 (cond
6782 ;; Refuse to select canceled articles.
6783 ((and (numberp article)
6784 gnus-summary-buffer
6785 (get-buffer gnus-summary-buffer)
6786 (gnus-buffer-exists-p gnus-summary-buffer)
6787 (eq (cdr (with-current-buffer gnus-summary-buffer
6788 (assq article gnus-newsgroup-reads)))
6789 gnus-canceled-mark))
6790 nil)
6791 ;; We first check `gnus-original-article-buffer'.
6792 ((and (get-buffer gnus-original-article-buffer)
6793 (numberp article)
6794 (with-current-buffer gnus-original-article-buffer
6795 (and (equal (car gnus-original-article) group)
6796 (eq (cdr gnus-original-article) article))))
6797 ;; `insert-buffer-substring' would incorrectly use the
6798 ;; equivalent of string-make-multibyte which amount to decoding
6799 ;; with locale-coding-system, causing failure of
6800 ;; subsequent decoding.
6801 (insert (mm-string-to-multibyte
6802 (with-current-buffer gnus-original-article-buffer
6803 (buffer-substring (point-min) (point-max)))))
6804 'article)
6805 ;; Check the backlog.
6806 ((and gnus-keep-backlog
6807 (gnus-backlog-request-article group article (current-buffer)))
6808 'article)
6809 ;; Check asynchronous pre-fetch.
6810 ((gnus-async-request-fetched-article group article (current-buffer))
6811 (gnus-async-prefetch-next group article gnus-summary-buffer)
6812 (when (and (numberp article) gnus-keep-backlog)
6813 (gnus-backlog-enter-article group article (current-buffer)))
6814 'article)
6815 ;; Check the cache.
6816 ((and gnus-use-cache
6817 (numberp article)
6818 (gnus-cache-request-article article group))
6819 'article)
6820 ;; Check the agent cache.
6821 ((gnus-agent-request-article article group)
6822 'article)
6823 ;; Get the article and put into the article buffer.
6824 ((or (stringp article)
6825 (numberp article))
6826 (let ((gnus-override-method gnus-override-method)
6827 (methods (and (stringp article)
6828 gnus-refer-article-method))
6829 (backend (car (gnus-find-method-for-group
6830 gnus-newsgroup-name)))
6831 result
6832 (inhibit-read-only t))
6833 (if (or (not (listp methods))
6834 (and (symbolp (car methods))
6835 (assq (car methods) nnoo-definition-alist)))
6836 (setq methods (list methods)))
6837 (when (and (null gnus-override-method)
6838 methods)
6839 (setq gnus-override-method (pop methods)))
6840 (while (not result)
6841 (when (eq gnus-override-method 'current)
6842 (setq gnus-override-method
6843 (with-current-buffer gnus-summary-buffer
6844 gnus-current-select-method)))
6845 (erase-buffer)
6846 (gnus-kill-all-overlays)
6847 (let ((gnus-newsgroup-name group))
6848 (gnus-check-group-server))
6849 (cond
6850 ((gnus-request-article article group (current-buffer))
6851 (when (numberp article)
6852 (gnus-async-prefetch-next group article
6853 gnus-summary-buffer)
6854 (when gnus-keep-backlog
6855 (gnus-backlog-enter-article
6856 group article (current-buffer)))
6857 (when (and gnus-agent
6858 (gnus-agent-group-covered-p group))
6859 (gnus-agent-store-article article group)))
6860 (setq result 'article))
6861 (methods
6862 (setq gnus-override-method (pop methods)))
6863 ((not (string-match "^400 "
6864 (nnheader-get-report backend)))
6865 ;; If we get 400 server disconnect, reconnect and
6866 ;; retry; otherwise, assume the article has expired.
6867 (setq result 'done))))
6868 (and (eq result 'article) 'article)))
6869 ;; It was a pseudo.
6870 (t article)))
6872 ;; Associate this article with the current summary buffer.
6873 (setq gnus-article-current-summary gnus-summary-buffer)
6875 ;; Take the article from the original article buffer
6876 ;; and place it in the buffer it's supposed to be in.
6877 (when (and (get-buffer gnus-article-buffer)
6878 (equal (buffer-name (current-buffer))
6879 (buffer-name (get-buffer gnus-article-buffer))))
6880 (save-excursion
6881 (if (get-buffer gnus-original-article-buffer)
6882 (set-buffer gnus-original-article-buffer)
6883 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
6884 (buffer-disable-undo)
6885 (setq major-mode 'gnus-original-article-mode)
6886 (setq buffer-read-only t))
6887 (let ((inhibit-read-only t))
6888 (erase-buffer)
6889 (insert-buffer-substring gnus-article-buffer))
6890 (setq gnus-original-article (cons group article)))
6892 ;; Decode charsets.
6893 (run-hooks 'gnus-article-decode-hook)
6894 ;; Mark article as decoded or not.
6895 (setq gnus-article-decoded-p gnus-article-decode-hook))
6897 ;; Update sparse articles.
6898 (when (and do-update-line
6899 (or (numberp article)
6900 (stringp article)))
6901 (let ((buf (current-buffer)))
6902 (set-buffer gnus-summary-buffer)
6903 (gnus-summary-update-article do-update-line sparse-header)
6904 (gnus-summary-goto-subject do-update-line nil t)
6905 (set-window-point (gnus-get-buffer-window (current-buffer) t)
6906 (point))
6907 (set-buffer buf))))))
6909 (defun gnus-block-private-groups (group)
6910 (if (gnus-news-group-p group)
6911 ;; Block nothing in news groups.
6912 nil
6913 ;; Block everything anywhere else.
6914 "."))
6916 (defun gnus-blocked-images ()
6917 (if (functionp gnus-blocked-images)
6918 (funcall gnus-blocked-images gnus-newsgroup-name)
6919 gnus-blocked-images))
6921 ;;;
6922 ;;; Article editing
6923 ;;;
6925 (defcustom gnus-article-edit-mode-hook nil
6926 "Hook run in article edit mode buffers."
6927 :group 'gnus-article-various
6928 :type 'hook)
6930 (defvar gnus-article-edit-done-function nil)
6932 (defvar gnus-article-edit-mode-map nil)
6934 ;; Should we be using derived.el for this?
6935 (unless gnus-article-edit-mode-map
6936 (setq gnus-article-edit-mode-map (make-keymap))
6937 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
6939 (gnus-define-keys gnus-article-edit-mode-map
6940 "\C-c?" describe-mode
6941 "\C-c\C-c" gnus-article-edit-done
6942 "\C-c\C-k" gnus-article-edit-exit
6943 "\C-c\C-f\C-t" message-goto-to
6944 "\C-c\C-f\C-o" message-goto-from
6945 "\C-c\C-f\C-b" message-goto-bcc
6946 ;;"\C-c\C-f\C-w" message-goto-fcc
6947 "\C-c\C-f\C-c" message-goto-cc
6948 "\C-c\C-f\C-s" message-goto-subject
6949 "\C-c\C-f\C-r" message-goto-reply-to
6950 "\C-c\C-f\C-n" message-goto-newsgroups
6951 "\C-c\C-f\C-d" message-goto-distribution
6952 "\C-c\C-f\C-f" message-goto-followup-to
6953 "\C-c\C-f\C-m" message-goto-mail-followup-to
6954 "\C-c\C-f\C-k" message-goto-keywords
6955 "\C-c\C-f\C-u" message-goto-summary
6956 "\C-c\C-f\C-i" message-insert-or-toggle-importance
6957 "\C-c\C-f\C-a" message-generate-unsubscribed-mail-followup-to
6958 "\C-c\C-b" message-goto-body
6959 "\C-c\C-i" message-goto-signature
6961 "\C-c\C-t" message-insert-to
6962 "\C-c\C-n" message-insert-newsgroups
6963 "\C-c\C-o" message-sort-headers
6964 "\C-c\C-e" message-elide-region
6965 "\C-c\C-v" message-delete-not-region
6966 "\C-c\C-z" message-kill-to-signature
6968 "\C-c\C-a" mml-attach-file
6969 "\C-a" message-beginning-of-line
6971 "\M-;" comment-region)
6973 (gnus-define-keys (gnus-article-edit-wash-map
6974 "\C-c\C-w" gnus-article-edit-mode-map)
6975 "f" gnus-article-edit-full-stops))
6977 (easy-menu-define
6978 gnus-article-edit-mode-field-menu gnus-article-edit-mode-map ""
6979 '("Field"
6980 ["Fetch To" message-insert-to t]
6981 ["Fetch Newsgroups" message-insert-newsgroups t]
6982 "----"
6983 ["To" message-goto-to t]
6984 ["From" message-goto-from t]
6985 ["Subject" message-goto-subject t]
6986 ["Cc" message-goto-cc t]
6987 ["Reply-To" message-goto-reply-to t]
6988 ["Summary" message-goto-summary t]
6989 ["Keywords" message-goto-keywords t]
6990 ["Newsgroups" message-goto-newsgroups t]
6991 ["Followup-To" message-goto-followup-to t]
6992 ["Mail-Followup-To" message-goto-mail-followup-to t]
6993 ["Distribution" message-goto-distribution t]
6994 ["Body" message-goto-body t]
6995 ["Signature" message-goto-signature t]))
6997 (define-derived-mode gnus-article-edit-mode message-mode "Article Edit"
6998 "Major mode for editing articles.
6999 This is an extended text-mode.
7002 (make-local-variable 'gnus-article-edit-done-function)
7003 (make-local-variable 'gnus-prev-winconf)
7004 (set (make-local-variable 'font-lock-defaults)
7005 '(message-font-lock-keywords t))
7006 (set (make-local-variable 'mail-header-separator) "")
7007 (set (make-local-variable 'gnus-article-edit-mode) t)
7008 (easy-menu-add message-mode-field-menu message-mode-map)
7009 (mml-mode)
7010 (setq buffer-read-only nil)
7011 (buffer-enable-undo)
7012 (widen))
7014 (defun gnus-article-edit (&optional force)
7015 "Edit the current article.
7016 This will have permanent effect only in mail groups.
7017 If FORCE is non-nil, allow editing of articles even in read-only
7018 groups."
7019 (interactive "P")
7020 (when (and (not force)
7021 (gnus-group-read-only-p))
7022 (error "The current newsgroup does not support article editing"))
7023 (gnus-article-date-original)
7024 (gnus-article-edit-article
7025 'ignore
7026 `(lambda (no-highlight)
7027 'ignore
7028 (gnus-summary-edit-article-done
7029 ,(or (mail-header-references gnus-current-headers) "")
7030 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
7032 (defun gnus-article-edit-article (start-func exit-func &optional quiet)
7033 "Start editing the contents of the current article buffer."
7034 (let ((winconf (current-window-configuration)))
7035 (set-buffer gnus-article-buffer)
7036 (let ((message-auto-save-directory
7037 ;; Don't associate the article buffer with a draft file.
7038 nil))
7039 (gnus-article-edit-mode))
7040 (funcall start-func)
7041 (set-buffer-modified-p nil)
7042 (gnus-configure-windows 'edit-article)
7043 (setq gnus-article-edit-done-function exit-func)
7044 (setq gnus-prev-winconf winconf)
7045 (unless quiet
7046 (gnus-message 6 "C-c C-c to end edits"))))
7048 (defun gnus-article-edit-done (&optional arg)
7049 "Update the article edits and exit."
7050 (interactive "P")
7051 (let ((func gnus-article-edit-done-function)
7052 (buf (current-buffer))
7053 (start (window-start))
7054 (p (point))
7055 (winconf gnus-prev-winconf))
7056 (widen) ;; Widen it in case that users narrowed the buffer.
7057 (funcall func arg)
7058 (set-buffer buf)
7059 ;; The cache and backlog have to be flushed somewhat.
7060 (when gnus-keep-backlog
7061 (gnus-backlog-remove-article
7062 (car gnus-article-current) (cdr gnus-article-current)))
7063 ;; Flush original article as well.
7064 (gnus-flush-original-article-buffer)
7065 (when gnus-use-cache
7066 (gnus-cache-update-article
7067 (car gnus-article-current) (cdr gnus-article-current)))
7068 ;; We remove all text props from the article buffer.
7069 (kill-all-local-variables)
7070 (set-text-properties (point-min) (point-max) nil)
7071 (gnus-article-mode)
7072 (set-window-configuration winconf)
7073 (set-buffer buf)
7074 (set-window-start (get-buffer-window buf) start)
7075 (set-window-point (get-buffer-window buf) (point)))
7076 (gnus-summary-show-article))
7078 (defun gnus-flush-original-article-buffer ()
7079 (when (get-buffer gnus-original-article-buffer)
7080 (with-current-buffer gnus-original-article-buffer
7081 (setq gnus-original-article nil))))
7083 (defun gnus-article-edit-exit ()
7084 "Exit the article editing without updating."
7085 (interactive)
7086 (when (or (not (buffer-modified-p))
7087 (yes-or-no-p "Article modified; kill anyway? "))
7088 (let ((curbuf (current-buffer))
7089 (p (point))
7090 (window-start (window-start)))
7091 (erase-buffer)
7092 (if (gnus-buffer-live-p gnus-original-article-buffer)
7093 (insert-buffer-substring gnus-original-article-buffer))
7094 (let ((winconf gnus-prev-winconf))
7095 (kill-all-local-variables)
7096 (gnus-article-mode)
7097 (set-window-configuration winconf)
7098 ;; Tippy-toe some to make sure that point remains where it was.
7099 (save-current-buffer
7100 (set-buffer curbuf)
7101 (set-window-start (get-buffer-window (current-buffer)) window-start)
7102 (goto-char p))))
7103 (gnus-summary-show-article)))
7105 (defun gnus-article-edit-full-stops ()
7106 "Interactively repair spacing at end of sentences."
7107 (interactive)
7108 (save-excursion
7109 (goto-char (point-min))
7110 (search-forward-regexp "^$" nil t)
7111 (let ((case-fold-search nil))
7114 ;;;
7115 ;;; Article highlights
7116 ;;;
7118 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
7120 ;;; Internal Variables:
7122 (defcustom gnus-button-url-regexp
7123 (concat
7127 (if (string-match "[[:digit:]]" "1") ;; Support POSIX?
7129 (punct "!?:;.,"))
7130 (concat
7132 ;; Match paired parentheses, e.g. in Wikipedia URLs:
7133 ;; http://thread.gmane.org/47B4E3B2.3050402@gmail.com
7134 "[" chars punct "]+" "(" "[" chars punct "]+" "[" chars "]*)" "[" chars "]*"
7136 "[" chars punct "]+" "[" chars "]"
7138 (concat ;; XEmacs 21.4 doesn't support POSIX.
7142 "Regular expression that matches URLs."
7143 :group 'gnus-article-buttons
7144 :type 'regexp)
7146 (defcustom gnus-button-valid-fqdn-regexp
7147 message-valid-fqdn-regexp
7148 "Regular expression that matches a valid FQDN."
7149 :version "22.1"
7150 :group 'gnus-article-buttons
7151 :type 'regexp)
7153 ;; Regexp suggested by Felix Wiemann in <87oeuomcz9.fsf@news2.ososo.de>
7154 (defcustom gnus-button-valid-localpart-regexp
7156 "Regular expression that matches a localpart of mail addresses or MIDs."
7157 :version "22.1"
7158 :group 'gnus-article-buttons
7159 :type 'regexp)
7161 (defcustom gnus-button-man-handler 'manual-entry
7162 "Function to use for displaying man pages.
7163 The function must take at least one argument with a string naming the
7164 man page."
7165 :version "22.1"
7166 :type '(choice (function-item :tag "Man" manual-entry)
7167 (function-item :tag "Woman" woman)
7168 (function :tag "Other"))
7169 :group 'gnus-article-buttons)
7171 (defcustom gnus-button-mid-or-mail-regexp
7173 gnus-button-valid-fqdn-regexp
7175 "Regular expression that matches a message ID or a mail address."
7176 :version "22.1"
7177 :group 'gnus-article-buttons
7178 :type 'regexp)
7180 (defcustom gnus-button-prefer-mid-or-mail 'gnus-button-mid-or-mail-heuristic
7182 Strings like this can be either a message ID or a mail address. If it is one
7183 of the symbols `mid' or `mail', Gnus will always assume that the string is a
7184 message ID or a mail address, respectively. If this variable is set to the
7185 symbol `ask', always query the user what do do. If it is a function, this
7186 function will be called with the string as its only argument. The function
7187 must return `mid', `mail', `invalid' or `ask'."
7188 :version "22.1"
7189 :group 'gnus-article-buttons
7190 :type '(choice (function-item :tag "Heuristic function"
7191 gnus-button-mid-or-mail-heuristic)
7192 (const ask)
7193 (const mid)
7194 (const mail)))
7196 (defcustom gnus-button-mid-or-mail-heuristic-alist
7198 (-10.0 . "#")
7201 (-5.0 . "@[Nn][Ee][Ww][Ss]") ;; /\@news/i
7202 (-5.0 . "@.*[Dd][Ii][Aa][Ll][Uu][Pp]") ;; /\@.*dialup/i;
7203 (-1.0 . "^[^a-z]+@")
7204 ;;
7206 (-5.0 . "[a-z].*[A-Z].*[a-z].*[A-Z].*@") ;; "([a-z].*[A-Z].*){2,}\@"
7207 (-3.0 . "[A-Z][A-Z][a-z][a-z].*@")
7209 ;;
7210 (-2.0 . "^[0-9]")
7211 (-1.0 . "^[0-9][0-9]")
7212 ;;
7213 ;; -3.0 /^[0-9][0-9a-fA-F]{2,2}/;
7214 (-3.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7215 ;; -5.0 /^[0-9][0-9a-fA-F]{3,3}/;
7216 (-5.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
7217 ;;
7218 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][^0-9].*@") ;; "[0-9]{5,}.*\@"
7219 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][^0-9].*@")
7220 ;; "[0-9]{8,}.*\@"
7221 (-3.0
7222 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].*@")
7223 ;; "[0-9]{12,}.*\@"
7224 ;; compensation for TDMA dated mail addresses:
7225 (25.0 . "-dated-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]+.*@")
7226 ;;
7228 (-20.0 . "^slrn")
7229 (-20.0 . "^Pine")
7231 (-20.0 . "_-_") ;; Subject change in thread
7232 ;;
7236 ;;
7237 ;; (5.0 . "") ;; $local_part_len <= 7
7238 (10.0 . "^[^0-9]+@")
7239 (3.0 . "^[^0-9]+[0-9][0-9]?[0-9]?@")
7240 ;; ^[^0-9]+[0-9]{1,3}\@ digits only at end of local part
7241 (3.0 . "\@stud")
7242 ;;
7243 (2.0 . "[a-z][a-z][._-][A-Z][a-z].*@")
7244 ;;
7245 (0.5 . "^[A-Z][a-z]")
7246 (0.5 . "^[A-Z][a-z][a-z]")
7247 (1.5 . "^[A-Z][a-z][A-Z][a-z][^a-z]") ;; ^[A-Z][a-z]{3,3}
7248 (2.0 . "^[A-Z][a-z][A-Z][a-z][a-z][^a-z]")) ;; ^[A-Z][a-z]{4,4}
7249 "An alist of \(RATE . REGEXP\) pairs for `gnus-button-mid-or-mail-heuristic'.
7251 A negative RATE indicates a message IDs, whereas a positive indicates a mail
7252 address. The REGEXP is processed with `case-fold-search' set to nil."
7253 :version "22.1"
7254 :group 'gnus-article-buttons
7255 :type '(repeat (cons (number :tag "Rate")
7256 (regexp :tag "Regexp"))))
7258 (defun gnus-button-mid-or-mail-heuristic (mid-or-mail)
7259 "Guess whether MID-OR-MAIL is a message ID or a mail address.
7260 Returns `mid' if MID-OR-MAIL is a message IDs, `mail' if it's a mail
7261 address, `ask' if unsure and `invalid' if the string is invalid."
7262 (let ((case-fold-search nil)
7263 (list gnus-button-mid-or-mail-heuristic-alist)
7264 (result 0) rate regexp lpartlen elem)
7265 (setq lpartlen
7267 (gnus-message 8 "`%s', length of local part=`%s'." mid-or-mail lpartlen)
7268 ;; Certain special cases...
7269 (when (string-match
7270 (concat
7274 mid-or-mail)
7275 (gnus-message 8 "`%s' is a known mail address." mid-or-mail)
7276 (setq result 'mail))
7278 (gnus-message 8 "`%s' is invalid." mid-or-mail)
7279 (setq result 'invalid))
7280 ;; Nothing more to do, if result is not a number here...
7281 (when (numberp result)
7282 (while list
7283 (setq elem (car list)
7284 rate (car elem)
7285 regexp (cdr elem)
7286 list (cdr list))
7287 (when (string-match regexp mid-or-mail)
7288 (setq result (+ result rate))
7289 (gnus-message
7290 9 "`%s' matched `%s', rate `%s', result `%s'."
7291 mid-or-mail regexp rate result)))
7292 (when (<= lpartlen 7)
7293 (setq result (+ result 5.0))
7294 (gnus-message 9 "`%s' matched (<= lpartlen 7), result `%s'."
7295 mid-or-mail result))
7296 (when (>= lpartlen 12)
7297 (gnus-message 9 "`%s' matched (>= lpartlen 12)" mid-or-mail)
7298 (cond
7299 ((string-match "[0-9][^0-9]+[0-9].*@" mid-or-mail)
7300 ;; Long local part should contain realname if e-mail address,
7301 ;; too many digits: message-id.
7302 ;; $score -= 5.0 + 0.1 * $local_part_len;
7303 (setq rate (* -1.0 (+ 5.0 (* 0.1 lpartlen))))
7304 (setq result (+ result rate))
7305 (gnus-message
7306 9 "Many digits in `%s', rate `%s', result `%s'."
7307 mid-or-mail rate result))
7308 ((string-match "[^aeiouy][^aeiouy][^aeiouy][^aeiouy]+.*\@"
7309 mid-or-mail)
7310 ;; Too few vowels [^aeiouy]{4,}.*\@
7311 (setq result (+ result -5.0))
7312 (gnus-message
7313 9 "Few vowels in `%s', rate `%s', result `%s'."
7314 mid-or-mail -5.0 result))
7315 (t
7316 (setq result (+ result 5.0))
7317 (gnus-message
7318 9 "`%s', rate `%s', result `%s'." mid-or-mail 5.0 result)))))
7319 (gnus-message 8 "`%s': Final rate is `%s'." mid-or-mail result)
7320 ;; Maybe we should make this a customizable alist: (condition . 'result)
7321 (cond
7322 ((symbolp result) result)
7323 ;; Now convert number into proper results:
7324 ((< result -10.0) 'mid)
7325 ((> result 10.0) 'mail)
7326 (t 'ask))))
7328 (defun gnus-button-handle-mid-or-mail (mid-or-mail)
7329 (let* ((pref gnus-button-prefer-mid-or-mail) guessed
7330 (url-mid (concat "news" ":" mid-or-mail))
7331 (url-mailto (concat "mailto" ":" mid-or-mail)))
7332 (gnus-message 9 "mid-or-mail=%s" mid-or-mail)
7333 (when (fboundp pref)
7334 (setq guessed
7335 ;; get rid of surrounding angles...
7336 (funcall pref
7338 (if (or (eq 'mid guessed) (eq 'mail guessed))
7339 (setq pref guessed)
7340 (setq pref 'ask)))
7341 (if (eq pref 'ask)
7342 (save-window-excursion
7343 (if (y-or-n-p (concat "Is <" mid-or-mail "> a mail address? "))
7344 (setq pref 'mail)
7345 (setq pref 'mid))))
7346 (cond ((eq pref 'mid)
7347 (gnus-message 8 "calling `gnus-button-handle-news' %s" url-mid)
7348 (gnus-button-handle-news url-mid))
7349 ((eq pref 'mail)
7350 (gnus-message 8 "calling `gnus-url-mailto' %s" url-mailto)
7351 (gnus-url-mailto url-mailto))
7352 (t (gnus-message 3 "Invalid string.")))))
7354 (defun gnus-button-handle-custom (fun arg)
7355 "Call function FUN on argument ARG.
7356 Both FUN and ARG are supposed to be strings. ARG will be passed
7357 as a symbol to FUN."
7358 (funcall (intern fun)
7359 (if (string-match "^customize-apropos" fun)
7360 arg
7361 (intern arg))))
7365 (defun gnus-button-handle-describe-function (url)
7366 "Call `describe-function' when pushing the corresponding URL button."
7367 (describe-function
7368 (intern
7369 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7371 (defun gnus-button-handle-describe-variable (url)
7372 "Call `describe-variable' when pushing the corresponding URL button."
7373 (describe-variable
7374 (intern
7375 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
7377 (defun gnus-button-handle-symbol (url)
7378 "Display help on variable or function.
7379 Calls `describe-variable' or `describe-function'."
7380 (let ((sym (intern url)))
7381 (cond
7382 ((fboundp sym) (describe-function sym))
7383 ((boundp sym) (describe-variable sym))
7384 (t (gnus-message 3 "`%s' is not a known function of variable." url)))))
7386 (defun gnus-button-handle-describe-key (url)
7387 "Call `describe-key' when pushing the corresponding URL button."
7388 (let* ((key-string
7389 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))
7390 (keys (ignore-errors (eval `(kbd ,key-string)))))
7391 (if keys
7392 (describe-key keys)
7393 (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
7395 (defun gnus-button-handle-apropos (url)
7396 "Call `apropos' when pushing the corresponding URL button."
7397 (apropos (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7399 (defun gnus-button-handle-apropos-command (url)
7400 "Call `apropos' when pushing the corresponding URL button."
7401 (apropos-command
7402 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7404 (defun gnus-button-handle-apropos-variable (url)
7405 "Call `apropos' when pushing the corresponding URL button."
7406 (funcall
7407 (if (fboundp 'apropos-variable) 'apropos-variable 'apropos)
7408 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7410 (defun gnus-button-handle-apropos-documentation (url)
7411 "Call `apropos' when pushing the corresponding URL button."
7412 (funcall
7413 (if (fboundp 'apropos-documentation) 'apropos-documentation 'apropos)
7414 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
7416 (defun gnus-button-handle-library (url)
7417 "Call `locate-library' when pushing the corresponding URL button."
7418 (gnus-message 9 "url=`%s'" url)
7419 (let* ((lib (locate-library url))
7420 (file (gnus-replace-in-string (or lib "") "\.elc" ".el")))
7421 (if (not lib)
7422 (gnus-message 1 "Cannot locale library `%s'." url)
7423 (find-file-read-only file))))
7425 (defcustom gnus-button-man-level 5
7426 "*Integer that says how many man-related buttons Gnus will show.
7427 The higher the number, the more buttons will appear and the more false
7428 positives are possible. Note that you can set this variable local to
7429 specific groups. Setting it higher in Unix groups is probably a good idea.
7430 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
7431 how to set variables in specific groups."
7432 :version "22.1"
7433 :group 'gnus-article-buttons
7434 :link '(custom-manual "(gnus)Group Parameters")
7435 :type 'integer)
7437 (defcustom gnus-button-emacs-level 5
7438 "*Integer that says how many emacs-related buttons Gnus will show.
7439 The higher the number, the more buttons will appear and the more false
7440 positives are possible. Note that you can set this variable local to
7441 specific groups. Setting it higher in Emacs or Gnus related groups is
7442 probably a good idea. See Info node `(gnus)Group Parameters' and the variable
7443 `gnus-parameters' on how to set variables in specific groups."
7444 :version "22.1"
7445 :group 'gnus-article-buttons
7446 :link '(custom-manual "(gnus)Group Parameters")
7447 :type 'integer)
7449 (defcustom gnus-button-message-level 5
7450 "*Integer that says how many buttons for news or mail messages will appear.
7451 The higher the number, the more buttons will appear and the more false
7452 positives are possible."
7453 ;; mail addresses, MIDs, URLs for news, ...
7454 :version "22.1"
7455 :group 'gnus-article-buttons
7456 :type 'integer)
7458 (defcustom gnus-button-browse-level 5
7459 "*Integer that says how many buttons for browsing will appear.
7460 The higher the number, the more buttons will appear and the more false
7461 positives are possible."
7462 ;; stuff handled by `browse-url' or `gnus-button-embedded-url'
7463 :version "22.1"
7464 :group 'gnus-article-buttons
7465 :type 'integer)
7467 (defcustom gnus-button-alist
7469 0 (>= gnus-button-message-level 0) gnus-button-handle-news 3)
7472 0 t gnus-button-handle-news 2)
7474 1 (>= gnus-button-message-level 0) gnus-button-fetch-group 5)
7476 0 (>= gnus-button-message-level 0) gnus-button-fetch-group 3)
7477 ;; RFC 2392 (Don't allow `/' in domain part --> CID)
7479 0 (>= gnus-button-message-level 0) gnus-button-message-id 2)
7481 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7483 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
7485 0 (>= gnus-button-message-level 0) gnus-url-mailto 2)
7486 ;; RFC 2368 (The mailto URL scheme)
7488 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7490 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7491 ;; Info Konqueror style <info:/foo/bar baz>.
7492 ;; Must come before " Gnus home-grown style".
7494 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7495 ;; Info, Gnus home-grown style (deprecated) <info://foo/bar+baz>
7497 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
7498 ;; Info GNOME style <info:foo#bar_baz>
7500 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-gnome 1)
7501 ;; Info KDE style <info:(foo)bar baz>
7503 1 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-kde 2)
7505 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 2)
7506 ("\\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,]*\\)\\)?"
7507 ;; Info links like `C-h i d m Gnus RET' or `C-h i d m Gnus RET i partial RET'
7508 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-keystrokes 0)
7509 ;; This is custom
7511 (>= gnus-button-emacs-level 1) gnus-button-handle-custom 1 2)
7512 ;; Emacs help commands
7514 ;; regexp doesn't match arguments containing ` '.
7515 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos 1)
7517 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-command 1)
7519 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-variable 1)
7521 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-documentation 1)
7522 ;; The following entries may lead to many false positives so don't enable
7523 ;; them by default (use a high button level).
7525 ;; Exclude [.?] for URLs in gmane.emacs.cvs
7526 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7528 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
7530 0 (>= gnus-button-emacs-level 8) gnus-button-handle-symbol 1)
7532 0 (>= gnus-button-emacs-level 9) gnus-button-handle-symbol 1)
7534 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-variable 1)
7536 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-function 1)
7538 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
7540 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
7542 ;; Unlike the other regexps we really have to require quoting
7543 ;; here to determine where it ends.
7544 1 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
7545 ;; This is how URLs _should_ be embedded in text (RFC 1738, RFC 2396)...
7547 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7548 ;; RFC 2396 (2.4.3., delims) ...
7550 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
7551 ;; Raw URLs.
7552 (gnus-button-url-regexp
7553 0 (>= gnus-button-browse-level 0) browse-url 0)
7554 ;; man pages
7556 0 (and (>= gnus-button-man-level 1) (< gnus-button-man-level 3))
7557 gnus-button-handle-man 1)
7558 ;; more man pages: resolv.conf(5), iso_8859-1(7), xterm(1x)
7560 0 (and (>= gnus-button-man-level 3) (< gnus-button-man-level 5))
7561 gnus-button-handle-man 1)
7562 ;; even more: Apache::PerlRun(3pm), PDL::IO::FastRaw(3pm),
7563 ;; SoWWWAnchor(3iv), XSelectInput(3X11), X(1), X(7)
7565 0 (>= gnus-button-man-level 5) gnus-button-handle-man 1)
7566 ;; Recognizing patches to .el files. This is somewhat obscure,
7567 ;; but considering the percentage of Gnus users who hack Emacs
7568 ;; Lisp files...
7570 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7572 (>= gnus-button-message-level 4) gnus-button-patch 1 2)
7573 ;; MID or mail: To avoid too many false positives we don't try to catch
7574 ;; all kind of allowed MIDs or mail addresses. Domain part must contain
7575 ;; at least one dot. TLD must contain two or three chars or be a know TLD
7576 ;; (info|name|...). Put this entry near the _end_ of `gnus-button-alist'
7577 ;; so that non-ambiguous entries (see above) match first.
7578 (gnus-button-mid-or-mail-regexp
7579 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1))
7580 "*Alist of regexps matching buttons in article bodies.
7582 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
7583 REGEXP: is the string (case insensitive) matching text around the button (can
7584 also be Lisp expression evaluating to a string),
7585 BUTTON: is the number of the regexp grouping actually matching the button,
7586 FORM: is a Lisp expression which must eval to true for the button to
7587 be added,
7588 CALLBACK: is the function to call when the user push this button, and each
7589 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
7591 CALLBACK can also be a variable, in that case the value of that
7592 variable it the real callback function."
7593 :group 'gnus-article-buttons
7594 :type '(repeat (list (choice regexp variable sexp)
7595 (integer :tag "Button")
7596 (sexp :tag "Form")
7597 (function :tag "Callback")
7598 (repeat :tag "Par"
7599 :inline t
7600 (integer :tag "Regexp group")))))
7601 (put 'gnus-button-alist 'risky-local-variable t)
7603 (defcustom gnus-header-button-alist
7605 0 (>= gnus-button-message-level 0) gnus-button-message-id 0)
7607 1 (>= gnus-button-message-level 0) gnus-button-reply 1)
7609 0 (>= gnus-button-message-level 0) gnus-msg-mail 0)
7610 ("^X-[Uu][Rr][Ll]:" gnus-button-url-regexp
7611 0 (>= gnus-button-browse-level 0) browse-url 0)
7612 ("^Subject:" gnus-button-url-regexp
7613 0 (>= gnus-button-browse-level 0) browse-url 0)
7614 ("^[^:]+:" gnus-button-url-regexp
7615 0 (>= gnus-button-browse-level 0) browse-url 0)
7616 ("^OpenPGP:.*url=" gnus-button-url-regexp
7617 0 (>= gnus-button-browse-level 0) gnus-button-openpgp 0)
7619 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
7621 1 (>= gnus-button-message-level 0) gnus-button-message-id 4))
7622 "*Alist of headers and regexps to match buttons in article heads.
7624 This alist is very similar to `gnus-button-alist', except that each
7625 alist has an additional HEADER element first in each entry:
7627 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
7629 HEADER is a regexp to match a header. For a fuller explanation, see
7630 `gnus-button-alist'."
7631 :group 'gnus-article-buttons
7632 :group 'gnus-article-headers
7633 :type '(repeat (list (regexp :tag "Header")
7634 (choice regexp variable)
7635 (integer :tag "Button")
7636 (sexp :tag "Form")
7637 (function :tag "Callback")
7638 (repeat :tag "Par"
7639 :inline t
7640 (integer :tag "Regexp group")))))
7641 (put 'gnus-header-button-alist 'risky-local-variable t)
7643 ;;; Commands:
7645 (defun gnus-article-push-button (event)
7646 "Check text under the mouse pointer for a callback function.
7647 If the text under the mouse pointer has a `gnus-callback' property,
7648 call it with the value of the `gnus-data' text property."
7649 (interactive "e")
7650 (set-buffer (window-buffer (posn-window (event-start event))))
7651 (let* ((pos (posn-point (event-start event)))
7652 (data (get-text-property pos 'gnus-data))
7653 (fun (get-text-property pos 'gnus-callback)))
7654 (goto-char pos)
7655 (when fun
7656 (funcall fun data))))
7658 (defun gnus-article-press-button ()
7659 "Check text at point for a callback function.
7660 If the text at point has a `gnus-callback' property,
7661 call it with the value of the `gnus-data' text property."
7662 (interactive)
7663 (let ((data (get-text-property (point) 'gnus-data))
7664 (fun (get-text-property (point) 'gnus-callback)))
7665 (when fun
7666 (funcall fun data))))
7668 (defun gnus-article-highlight (&optional force)
7669 "Highlight current article.
7670 This function calls `gnus-article-highlight-headers',
7671 `gnus-article-highlight-citation',
7672 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7673 do the highlighting. See the documentation for those functions."
7674 (interactive (list 'force))
7675 (gnus-article-highlight-headers)
7676 (gnus-article-highlight-citation force)
7677 (gnus-article-highlight-signature)
7678 (gnus-article-add-buttons)
7679 (gnus-article-add-buttons-to-head))
7681 (defun gnus-article-highlight-some (&optional force)
7682 "Highlight current article.
7683 This function calls `gnus-article-highlight-headers',
7684 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
7685 do the highlighting. See the documentation for those functions."
7686 (interactive (list 'force))
7687 (gnus-article-highlight-headers)
7688 (gnus-article-highlight-signature)
7689 (gnus-article-add-buttons))
7691 (defun gnus-article-highlight-headers ()
7692 "Highlight article headers as specified by `gnus-header-face-alist'."
7693 (interactive)
7694 (gnus-with-article-headers
7695 (let (regexp header-face field-face from hpoints fpoints)
7696 (dolist (entry gnus-header-face-alist)
7697 (goto-char (point-min))
7699 (if (string-equal "" (nth 0 entry))
7701 (nth 0 entry))
7703 header-face (nth 1 entry)
7704 field-face (nth 2 entry))
7705 (while (and (re-search-forward regexp nil t)
7706 (not (eobp)))
7707 (beginning-of-line)
7708 (setq from (point))
7709 (unless (search-forward ":" nil t)
7710 (forward-char 1))
7711 (when (and header-face
7712 (not (memq (point) hpoints)))
7713 (push (point) hpoints)
7714 (gnus-put-text-property from (point) 'face header-face))
7715 (when (and field-face
7716 (not (memq (setq from (point)) fpoints)))
7717 (push from fpoints)
7719 (forward-char -2)
7720 (goto-char (point-max)))
7721 (gnus-put-text-property from (point) 'face field-face)))))))
7723 (defun gnus-article-highlight-signature ()
7724 "Highlight the signature in an article.
7725 It does this by highlighting everything after
7726 `gnus-signature-separator' using the face `gnus-signature'."
7727 (interactive)
7728 (gnus-with-article-buffer
7729 (let ((inhibit-point-motion-hooks t))
7730 (save-restriction
7731 (when (and gnus-signature-face
7732 (gnus-article-narrow-to-signature))
7733 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max) nil t)
7734 'face gnus-signature-face)
7735 (widen)
7736 (gnus-article-search-signature)
7737 (let ((start (match-beginning 0))
7738 (end (set-marker (make-marker) (1+ (match-end 0)))))
7739 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
7740 end)))))))
7742 (defun gnus-button-in-region-p (b e prop)
7743 "Say whether PROP exists in the region."
7744 (text-property-not-all b e prop nil))
7746 (defun gnus-article-add-buttons ()
7747 "Find external references in the article and make buttons of them.
7749 specified by `gnus-button-alist'."
7750 (interactive)
7751 (gnus-with-article-buffer
7752 (let ((inhibit-point-motion-hooks t)
7753 (case-fold-search t)
7754 (alist gnus-button-alist)
7755 beg entry regexp)
7756 ;; We skip the headers.
7757 (article-goto-body)
7758 (setq beg (point))
7759 (while (setq entry (pop alist))
7760 (setq regexp (eval (car entry)))
7761 (goto-char beg)
7762 (while (re-search-forward regexp nil t)
7763 (let ((start (match-beginning (nth 1 entry)))
7764 (end (match-end (nth 1 entry)))
7765 (from (match-beginning 0)))
7766 (when (and (eval (nth 2 entry))
7767 (not (gnus-button-in-region-p
7768 start end 'gnus-callback)))
7769 ;; That optional form returned non-nil, so we add the
7770 ;; button.
7771 (setq from (set-marker (make-marker) from))
7772 (unless (and (eq (car entry) 'gnus-button-url-regexp)
7773 (gnus-article-extend-url-button from start end))
7774 (gnus-article-add-button start end
7775 'gnus-button-push (list from entry))
7776 (gnus-put-text-property
7777 start end
7778 'gnus-string (buffer-substring-no-properties
7779 start end))))))))))
7781 (defun gnus-article-extend-url-button (beg start end)
7782 "Extend url button if url is folded into two or more lines.
7783 Return non-nil if button is extended. BEG is a marker that points to
7784 the beginning position of a text containing url. START and END are
7785 the endpoints of a url button before it is extended. The concatenated
7786 url is put as the `gnus-button-url' overlay property on the button."
7787 (let ((opoint (point))
7788 (points (list start end))
7789 url delim regexp)
7790 (prog1
7791 (when (and (progn
7792 (goto-char end)
7794 (progn
7795 (goto-char start)
7796 (string-match
7798 (buffer-substring (point-at-bol) start)))
7799 (progn
7800 (setq url (list (buffer-substring start end))
7802 (beginning-of-line)
7803 (setq regexp (concat
7804 (when (and (looking-at
7805 message-cite-prefix-regexp)
7806 (< (match-end 0) start))
7807 (regexp-quote (match-string 0)))
7808 "\
7811 (while (progn
7812 (forward-line 1)
7813 (and (looking-at regexp)
7814 (prog1
7815 (match-beginning 1)
7816 (push (or (match-string 2)
7817 (match-string 1))
7818 url)
7819 (push (setq end (or (match-end 2)
7820 (match-end 1)))
7821 points)
7822 (push (or (match-beginning 2)
7823 (match-beginning 1))
7824 points)))))
7825 (match-beginning 2)))
7826 (let (gnus-article-mouse-face widget-mouse-face)
7827 (while points
7828 (gnus-article-add-button (pop points) (pop points)
7829 'gnus-button-push beg)))
7830 (let ((overlay (gnus-make-overlay start end)))
7831 (gnus-overlay-put overlay 'evaporate t)
7832 (gnus-overlay-put overlay 'gnus-button-url
7833 (list (mapconcat 'identity (nreverse url) "")))
7834 (when gnus-article-mouse-face
7835 (gnus-overlay-put overlay 'mouse-face gnus-article-mouse-face)))
7836 t)
7837 (goto-char opoint))))
7839 ;; Add buttons to the head of an article.
7840 (defun gnus-article-add-buttons-to-head ()
7841 "Add buttons to the head of the article."
7842 (interactive)
7843 (gnus-with-article-headers
7844 (let (beg end)
7845 (dolist (entry gnus-header-button-alist)
7846 ;; Each alist entry.
7847 (goto-char (point-min))
7848 (while (re-search-forward (car entry) nil t)
7849 ;; Each header matching the entry.
7850 (setq beg (match-beginning 0))
7852 (match-beginning 0))
7853 (point-max)))
7854 (goto-char beg)
7855 (while (re-search-forward (eval (nth 1 entry)) end t)
7856 ;; Each match within a header.
7857 (let* ((entry (cdr entry))
7858 (start (match-beginning (nth 1 entry)))
7859 (end (match-end (nth 1 entry)))
7860 (form (nth 2 entry)))
7861 (goto-char (match-end 0))
7862 (when (eval form)
7863 (gnus-article-add-button
7864 start end (nth 3 entry)
7865 (buffer-substring (match-beginning (nth 4 entry))
7866 (match-end (nth 4 entry)))))))
7867 (goto-char end))))))
7869 ;;; External functions:
7871 (defun gnus-article-add-button (from to fun &optional data text)
7872 "Create a button between FROM and TO with callback FUN and data DATA."
7873 (when gnus-article-button-face
7874 (gnus-overlay-put (gnus-make-overlay from to nil t)
7875 'face gnus-article-button-face))
7876 (gnus-add-text-properties
7877 from to
7878 (nconc (and gnus-article-mouse-face
7879 (list gnus-mouse-face-prop gnus-article-mouse-face))
7880 (list 'gnus-callback fun)
7881 (and data (list 'gnus-data data))))
7882 (widget-convert-button 'link from to :action 'gnus-widget-press-button
7883 :help-echo (or text "Follow the link")
7884 :keymap gnus-url-button-map
7885 :button-keymap gnus-widget-button-keymap))
7887 (defun gnus-article-copy-string ()
7888 "Copy the string in the button to the kill ring."
7889 (interactive)
7890 (gnus-article-check-buffer)
7891 (let ((data (get-text-property (point) 'gnus-string)))
7892 (when data
7893 (with-temp-buffer
7894 (insert data)
7895 (copy-region-as-kill (point-min) (point-max))
7896 (message "Copied %s" data)))))
7898 ;;; Internal functions:
7900 (defun gnus-article-set-globals ()
7901 (with-current-buffer gnus-summary-buffer
7902 (gnus-set-global-variables)))
7904 (defun gnus-signature-toggle (end)
7905 (gnus-with-article-buffer
7906 (let ((inhibit-point-motion-hooks t))
7907 (if (text-property-any end (point-max) 'article-type 'signature)
7908 (progn
7909 (gnus-delete-wash-type 'signature)
7910 (gnus-remove-text-properties-when
7911 'article-type 'signature end (point-max)
7912 (cons 'article-type (cons 'signature
7913 gnus-hidden-properties))))
7914 (gnus-add-wash-type 'signature)
7915 (gnus-add-text-properties-when
7916 'article-type nil end (point-max)
7917 (cons 'article-type (cons 'signature
7918 gnus-hidden-properties)))))
7919 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
7920 (gnus-set-mode-line 'article))))
7922 (defun gnus-button-push (marker-and-entry)
7923 ;; Push button starting at MARKER.
7924 (save-excursion
7925 (let* ((marker (car marker-and-entry))
7926 (entry (cadr marker-and-entry))
7927 (regexp (car entry))
7928 (inhibit-point-motion-hooks t))
7929 (goto-char marker)
7930 ;; This is obviously true, or something bad is happening :)
7931 ;; But we need it to have the match-data
7932 (when (looking-at (or (if (symbolp regexp)
7933 (symbol-value regexp)
7934 regexp)))
7935 (let ((fun (nth 3 entry))
7936 (args (or (and (eq (car entry) 'gnus-button-url-regexp)
7937 (get-char-property marker 'gnus-button-url))
7938 (mapcar (lambda (group)
7939 (let ((string (match-string group)))
7940 (set-text-properties
7941 0 (length string) nil string)
7942 string))
7943 (nthcdr 4 entry)))))
7945 (cond
7946 ((fboundp fun)
7947 (apply fun args))
7948 ((and (boundp fun)
7949 (fboundp (symbol-value fun)))
7950 (apply (symbol-value fun) args))
7951 (t
7952 (gnus-message 1 "You must define `%S' to use this button"
7953 (cons fun args)))))))))
7955 (defun gnus-parse-news-url (url)
7956 (let (scheme server port group message-id articles)
7957 (with-temp-buffer
7958 (insert url)
7959 (goto-char (point-min))
7961 (setq scheme (match-string 1))
7962 (goto-char (match-end 0)))
7964 (setq server (match-string 1))
7965 (setq port (if (stringp (match-string 3))
7966 (string-to-number (match-string 3))
7967 (match-string 3)))
7968 (goto-char (match-end 0)))
7970 (cond
7972 (setq message-id (match-string 1)))
7974 (setq group (match-string 1)
7975 articles (split-string (match-string 2) "-")))
7977 (setq group (match-string 1)))
7978 (t
7979 (error "Unknown news URL syntax"))))
7980 (list scheme server port group message-id articles)))
7982 (defun gnus-button-handle-news (url)
7983 "Fetch a news URL."
7984 (destructuring-bind (scheme server port group message-id articles)
7985 (gnus-parse-news-url url)
7986 (cond
7987 (message-id
7988 (with-current-buffer gnus-summary-buffer
7989 (if server
7990 (let ((gnus-refer-article-method
7991 (nconc (list (list 'nntp server))
7992 gnus-refer-article-method))
7993 (nntp-port-number (or port "nntp")))
7994 (gnus-message 7 "Fetching %s with %s"
7995 message-id gnus-refer-article-method)
7996 (gnus-summary-refer-article message-id))
7997 (gnus-summary-refer-article message-id))))
7998 (group
7999 (gnus-button-fetch-group url)))))
8001 (defun gnus-button-patch (library line)
8002 "Visit an Emacs Lisp library LIBRARY on line LINE."
8003 (interactive)
8004 (let ((file (locate-library (file-name-nondirectory library))))
8005 (unless file
8006 (error "Couldn't find library %s" library))
8007 (find-file file)
8008 (goto-char (point-min))
8009 (forward-line (1- (string-to-number line)))))
8011 (defun gnus-button-handle-man (url)
8012 "Fetch a man page."
8013 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8014 (when (eq gnus-button-man-handler 'woman)
8016 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
8017 (funcall gnus-button-man-handler url))
8019 (defun gnus-button-handle-info-url (url)
8020 "Fetch an info URL."
8021 (setq url (mm-subst-char-in-string ?+ ?\ url))
8022 (cond
8024 (gnus-info-find-node
8025 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
8026 "Gnus")
8027 ")" (gnus-url-unhex-string (match-string 2 url)))))
8029 (setq url
8030 (gnus-replace-in-string
8032 (gnus-info-find-node url))
8033 (t (error "Can't parse %s" url))))
8035 (defun gnus-button-handle-info-url-gnome (url)
8036 "Fetch GNOME style info URL."
8037 (setq url (mm-subst-char-in-string ?_ ?\ url))
8039 (gnus-info-find-node
8040 (concat "("
8041 (gnus-url-unhex-string
8042 (match-string 1 url))
8043 ")"
8044 (or (gnus-url-unhex-string
8045 (match-string 2 url))
8046 "Top")))
8047 (error "Can't parse %s" url)))
8049 (defun gnus-button-handle-info-url-kde (url)
8050 "Fetch KDE style info URL."
8051 (gnus-info-find-node (gnus-url-unhex-string url)))
8053 ;; (info) will autoload info.el
8054 (declare-function Info-menu "info" (menu-item &optional fork))
8055 (declare-function Info-index-next "info" (num))
8057 (defun gnus-button-handle-info-keystrokes (url)
8058 "Call `info' when pushing the corresponding URL button."
8059 ;; For links like `C-h i d m gnus RET part RET , ,', `C-h i d m CC Mode RET'.
8060 (let (node indx comma)
8061 (if (string-match
8066 url)
8067 (setq node (match-string 2 url)
8068 indx (match-string 3 url))
8069 (error "Can't parse %s" url))
8070 (info)
8071 (Info-directory)
8072 (Info-menu node)
8073 (when (> (length indx) 0)
8076 indx)
8077 (setq comma (match-string 2 indx))
8078 (setq indx (match-string 1 indx))
8079 (Info-index indx)
8080 (when comma
8081 (dotimes (i (with-temp-buffer
8082 (insert comma)
8083 ;; Note: the XEmacs version of `how-many' takes
8084 ;; no optional argument.
8085 (goto-char (point-min))
8086 (how-many ",")))
8087 (Info-index-next 1)))
8088 nil)))
8090 (autoload 'pgg-snarf-keys-region "pgg")
8091 ;; Called after pgg-snarf-keys-region, which autoloads pgg.el.
8092 (declare-function pgg-display-output-buffer "pgg" (start end status))
8094 (defun gnus-button-openpgp (url)
8095 "Retrieve and add an OpenPGP key given URL from an OpenPGP header."
8096 (with-temp-buffer
8097 (mm-url-insert-file-contents-external url)
8098 (pgg-snarf-keys-region (point-min) (point-max))
8099 (pgg-display-output-buffer nil nil nil)))
8101 (defun gnus-button-message-id (message-id)
8102 "Fetch MESSAGE-ID."
8103 (with-current-buffer gnus-summary-buffer
8104 (gnus-summary-refer-article message-id)))
8106 (defun gnus-button-fetch-group (address &rest ignore)
8107 "Fetch GROUP specified by ADDRESS."
8109 address)
8110 ;; Allow to use `gnus-button-fetch-group' in `browse-url-browser-function'
8111 ;; for nntp:// and news://
8112 (setq address (match-string 3 address)))
8113 (if (not (string-match "[:/]" address))
8114 ;; This is just a simple group url.
8115 (gnus-group-read-ephemeral-group address gnus-select-method)
8116 (if (not
8117 (string-match
8119 address))
8120 (error "Can't parse %s" address)
8121 (gnus-group-read-ephemeral-group
8122 (match-string 4 address)
8123 `(nntp ,(match-string 1 address)
8124 (nntp-address ,(match-string 1 address))
8125 (nntp-port-number ,(if (match-end 3)
8126 (match-string 3 address)
8127 "nntp")))
8128 nil nil nil
8129 (and (match-end 6) (list (string-to-number (match-string 6 address))))))))
8131 (defun gnus-url-parse-query-string (query &optional downcase)
8132 (let (retval pairs cur key val)
8133 (setq pairs (split-string query "&"))
8134 (while pairs
8135 (setq cur (car pairs)
8136 pairs (cdr pairs))
8137 (if (not (string-match "=" cur))
8138 nil ; Grace
8139 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
8140 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
8141 (if downcase
8142 (setq key (downcase key)))
8143 (setq cur (assoc key retval))
8144 (if cur
8145 (setcdr cur (cons val (cdr cur)))
8146 (setq retval (cons (list key val) retval)))))
8147 retval))
8149 (defun gnus-url-mailto (url)
8150 ;; Send mail to someone
8153 (setq url (substring url (match-beginning 1) nil)))
8154 (let (to args subject func)
8155 (setq args (gnus-url-parse-query-string
8157 (substring url 1)
8159 (concat "to=" (match-string 1 url) "&"
8160 (match-string 2 url))
8161 (concat "to=" url))))
8162 subject (cdr-safe (assoc "subject" args)))
8163 (gnus-msg-mail)
8164 (while args
8165 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
8166 (if (fboundp func)
8167 (funcall func)
8168 (message-position-on-field (caar args)))
8169 (insert (gnus-replace-in-string
8170 (mapconcat 'identity (reverse (cdar args)) ", ")
8172 (setq args (cdr args)))
8173 (if subject
8174 (message-goto-body)
8175 (message-goto-subject))))
8177 (defun gnus-button-embedded-url (address)
8178 "Activate ADDRESS with `browse-url'."
8179 (browse-url (gnus-strip-whitespace address)))
8181 ;;; Next/prev buttons in the article buffer.
8186 (defvar gnus-prev-page-map
8187 (let ((map (make-sparse-keymap)))
8188 (define-key map gnus-mouse-2 'gnus-button-prev-page)
8190 map))
8192 (defvar gnus-next-page-map
8193 (let ((map (make-sparse-keymap)))
8194 (define-key map gnus-mouse-2 'gnus-button-next-page)
8196 map))
8198 (defun gnus-insert-prev-page-button ()
8199 (let ((b (point)) e
8200 (inhibit-read-only t))
8201 (gnus-eval-format
8202 gnus-prev-page-line-format nil
8203 `(keymap ,gnus-prev-page-map
8204 gnus-prev t
8205 gnus-callback gnus-article-button-prev-page
8206 article-type annotation))
8207 (setq e (if (bolp)
8208 ;; Exclude a newline.
8209 (1- (point))
8210 (point)))
8211 (when gnus-article-button-face
8212 (gnus-overlay-put (gnus-make-overlay b e nil t)
8213 'face gnus-article-button-face))
8214 (widget-convert-button
8215 'link b e
8216 :action 'gnus-button-prev-page
8217 :button-keymap gnus-prev-page-map)))
8219 (defun gnus-button-next-page (&optional args more-args)
8220 "Go to the next page."
8221 (interactive)
8222 (let ((win (selected-window)))
8223 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8224 (gnus-article-next-page)
8225 (select-window win)))
8227 (defun gnus-button-prev-page (&optional args more-args)
8228 "Go to the prev page."
8229 (interactive)
8230 (let ((win (selected-window)))
8231 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8232 (gnus-article-prev-page)
8233 (select-window win)))
8235 (defun gnus-insert-next-page-button ()
8236 (let ((b (point)) e
8237 (inhibit-read-only t))
8238 (gnus-eval-format gnus-next-page-line-format nil
8239 `(keymap ,gnus-next-page-map
8240 gnus-next t
8241 gnus-callback gnus-article-button-next-page
8242 article-type annotation))
8243 (setq e (if (bolp)
8244 ;; Exclude a newline.
8245 (1- (point))
8246 (point)))
8247 (when gnus-article-button-face
8248 (gnus-overlay-put (gnus-make-overlay b e nil t)
8249 'face gnus-article-button-face))
8250 (widget-convert-button
8251 'link b e
8252 :action 'gnus-button-next-page
8253 :button-keymap gnus-next-page-map)))
8255 (defun gnus-article-button-next-page (arg)
8256 "Go to the next page."
8257 (interactive "P")
8258 (let ((win (selected-window)))
8259 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8260 (gnus-article-next-page)
8261 (select-window win)))
8263 (defun gnus-article-button-prev-page (arg)
8264 "Go to the prev page."
8265 (interactive "P")
8266 (let ((win (selected-window)))
8267 (select-window (gnus-get-buffer-window gnus-article-buffer t))
8268 (gnus-article-prev-page)
8269 (select-window win)))
8271 (defvar gnus-decode-header-methods
8272 '(mail-decode-encoded-word-region)
8273 "List of methods used to decode headers.
8275 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
8276 is FUNCTION, FUNCTION will be applied to all newsgroups. If item is a
8277 \(REGEXP . FUNCTION), FUNCTION will be only apply to the newsgroups
8278 whose names match REGEXP.
8280 For example:
8282 mail-decode-encoded-word-region
8284 ")
8286 (defvar gnus-decode-header-methods-cache nil)
8288 (defun gnus-multi-decode-header (start end)
8289 "Apply the functions from `gnus-encoded-word-methods' that match."
8290 (unless (and gnus-decode-header-methods-cache
8291 (eq gnus-newsgroup-name
8292 (car gnus-decode-header-methods-cache)))
8293 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
8294 (dolist (x gnus-decode-header-methods)
8295 (if (symbolp x)
8296 (nconc gnus-decode-header-methods-cache (list x))
8297 (if (and gnus-newsgroup-name
8298 (string-match (car x) gnus-newsgroup-name))
8299 (nconc gnus-decode-header-methods-cache
8300 (list (cdr x)))))))
8301 (let ((xlist gnus-decode-header-methods-cache))
8302 (pop xlist)
8303 (save-restriction
8304 (narrow-to-region start end)
8305 (while xlist
8306 (funcall (pop xlist) (point-min) (point-max))))))
8308 ;;;
8309 ;;; Treatment top-level handling.
8310 ;;;
8312 (defvar gnus-inhibit-article-treatments nil)
8314 (defun gnus-treat-article (gnus-treat-condition
8315 &optional part-number total-parts gnus-treat-type)
8316 (let ((gnus-treat-length (- (point-max) (point-min)))
8317 (alist gnus-treatment-function-alist)
8318 (article-goto-body-goes-to-point-min-p t)
8319 (treated-type
8320 (or (not gnus-treat-type)
8321 (catch 'found
8322 (let ((list gnus-article-treat-types))
8323 (while list
8324 (when (string-match (pop list) gnus-treat-type)
8325 (throw 'found t)))))))
8326 (highlightp (gnus-visual-p 'article-highlight 'highlight))
8327 val elem)
8328 (gnus-run-hooks 'gnus-part-display-hook)
8329 (dolist (elem alist)
8330 (setq val
8331 (save-excursion
8332 (when (gnus-buffer-live-p gnus-summary-buffer)
8333 (set-buffer gnus-summary-buffer))
8334 (symbol-value (car elem))))
8335 (when (and (or (consp val)
8336 treated-type)
8337 (or (not gnus-inhibit-article-treatments)
8338 (eq gnus-treat-condition 'head))
8339 (gnus-treat-predicate val)
8340 (or (not (get (car elem) 'highlight))
8341 highlightp))
8342 (save-restriction
8343 (funcall (cadr elem)))))))
8345 ;; Dynamic variables.
8346 (defvar part-number)
8347 (defvar total-parts)
8348 (defvar gnus-treat-type)
8349 (defvar gnus-treat-condition)
8350 (defvar gnus-treat-length)
8352 (defun gnus-treat-predicate (val)
8353 (cond
8354 ((null val)
8355 nil)
8356 (gnus-treat-condition
8357 (eq gnus-treat-condition val))
8358 ((and (listp val)
8359 (stringp (car val)))
8360 (apply 'gnus-or (mapcar `(lambda (s)
8361 (string-match s ,(or gnus-newsgroup-name "")))
8362 val)))
8363 ((listp val)
8364 (let ((pred (pop val)))
8365 (cond
8366 ((eq pred 'or)
8367 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
8368 ((eq pred 'and)
8369 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
8370 ((eq pred 'not)
8371 (not (gnus-treat-predicate (car val))))
8372 ((eq pred 'typep)
8373 (equal (car val) gnus-treat-type))
8374 (t
8375 (error "%S is not a valid predicate" pred)))))
8376 ((eq val t)
8377 t)
8378 ((eq val 'head)
8379 nil)
8380 ((eq val 'first)
8381 (eq part-number 1))
8382 ((eq val 'last)
8383 (eq part-number total-parts))
8384 ((numberp val)
8385 (< gnus-treat-length val))
8386 (t
8387 (error "%S is not a valid value" val))))
8389 (defun gnus-article-encrypt-body (protocol &optional n)
8390 "Encrypt the article body."
8391 (interactive
8392 (list
8393 (or gnus-article-encrypt-protocol
8394 (gnus-completing-read "Encrypt protocol"
8395 (mapcar 'car gnus-article-encrypt-protocol-alist)
8396 t))
8397 current-prefix-arg))
8398 ;; User might hit `K E' instead of `K e', so prompt once.
8399 (when (and gnus-article-encrypt-protocol
8400 gnus-novice-user)
8401 (unless (gnus-y-or-n-p "Really encrypt article(s)? ")
8402 (error "Encrypt aborted")))
8403 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
8404 (unless func
8405 (error "Can't find the encrypt protocol %s" protocol))
8406 (if (member gnus-newsgroup-name '("nndraft:delayed"
8407 "nndraft:drafts"
8408 "nndraft:queue"))
8409 (error "Can't encrypt the article in group %s"
8410 gnus-newsgroup-name))
8411 (gnus-summary-iterate n
8412 (with-current-buffer gnus-summary-buffer
8413 (let ((mail-parse-charset gnus-newsgroup-charset)
8414 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
8415 (summary-buffer gnus-summary-buffer)
8416 references point)
8417 (gnus-set-global-variables)
8418 (when (gnus-group-read-only-p)
8419 (error "The current newsgroup does not support article encrypt"))
8420 (gnus-summary-show-article t)
8421 (setq references
8422 (or (mail-header-references gnus-current-headers) ""))
8423 (set-buffer gnus-article-buffer)
8424 (let* ((inhibit-read-only t)
8425 (headers
8426 (mapcar (lambda (field)
8427 (and (save-restriction
8428 (message-narrow-to-head)
8429 (goto-char (point-min))
8430 (search-forward field nil t))
8431 (prog2
8432 (message-narrow-to-field)
8433 (buffer-string)
8434 (delete-region (point-min) (point-max))
8435 (widen))))
8436 '("Content-Type:" "Content-Transfer-Encoding:"
8437 "Content-Disposition:"))))
8438 (message-narrow-to-head)
8439 (message-remove-header "MIME-Version")
8440 (goto-char (point-max))
8441 (setq point (point))
8442 (insert (apply 'concat headers))
8443 (widen)
8444 (narrow-to-region point (point-max))
8445 (let ((message-options message-options))
8446 (message-options-set 'message-sender user-mail-address)
8447 (message-options-set 'message-recipients user-mail-address)
8448 (message-options-set 'message-sign-encrypt 'not)
8449 (funcall func))
8450 (goto-char (point-min))
8452 (widen)
8453 (gnus-summary-edit-article-done
8454 references nil summary-buffer t))
8455 (when gnus-keep-backlog
8456 (gnus-backlog-remove-article
8457 (car gnus-article-current) (cdr gnus-article-current)))
8458 (gnus-flush-original-article-buffer)
8459 (when gnus-use-cache
8460 (gnus-cache-update-article
8461 (car gnus-article-current) (cdr gnus-article-current))))))))
8464 "The following specs can be used:
8465 %t The security MIME type
8466 %i Additional info
8467 %d Details
8468 %D Details if button is pressed")
8471 "The following specs can be used:
8472 %t The security MIME type
8473 %i Additional info
8474 %d Details
8475 %D Details if button is pressed")
8477 (defvar gnus-mime-security-button-line-format-alist
8478 '((?t gnus-tmp-type ?s)
8479 (?i gnus-tmp-info ?s)
8480 (?d gnus-tmp-details ?s)
8481 (?D gnus-tmp-pressed-details ?s)))
8483 (defvar gnus-mime-security-button-commands
8485 (undefined "v")
8486 (undefined "t")
8487 (undefined "C")
8488 (gnus-mime-security-save-part "o" "Save...")
8489 (undefined "\C-o")
8490 (undefined "r")
8491 (undefined "d")
8492 (undefined "c")
8493 (undefined "i")
8494 (undefined "E")
8495 (undefined "e")
8496 (undefined "p")
8497 (gnus-mime-security-pipe-part "|" "Pipe To Command...")
8498 (undefined ".")))
8500 (defvar gnus-mime-security-button-map
8501 (let ((map (make-sparse-keymap)))
8502 (define-key map gnus-mouse-2 'gnus-article-push-button)
8503 (define-key map gnus-down-mouse-3 'gnus-mime-security-button-menu)
8504 (dolist (c gnus-mime-security-button-commands)
8505 (define-key map (cadr c) (car c)))
8506 map))
8508 (easy-menu-define
8509 gnus-mime-security-button-menu gnus-mime-security-button-map
8510 "Security button menu."
8511 `("Security Part"
8512 ,@(delq nil
8513 (mapcar (lambda (c)
8514 (unless (eq (car c) 'undefined)
8515 (vector (caddr c) (car c) :active t)))
8516 gnus-mime-security-button-commands))))
8518 (defun gnus-mime-security-button-menu (event prefix)
8519 "Construct a context-sensitive menu of security commands."
8521 (save-window-excursion
8522 (let ((pos (event-start event)))
8523 (select-window (posn-window pos))
8524 (goto-char (posn-point pos))
8525 (gnus-article-check-buffer)
8526 (popup-menu gnus-mime-security-button-menu nil prefix))))
8528 (defvar gnus-mime-security-details-buffer nil)
8530 (defvar gnus-mime-security-button-pressed nil)
8532 (defvar gnus-mime-security-show-details-inline t
8533 "If non-nil, show details in the article buffer.")
8535 (defun gnus-mime-security-verify-or-decrypt (handle)
8536 (mm-remove-parts (cdr handle))
8537 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
8538 point (inhibit-read-only t))
8539 (if region
8540 (goto-char (car region)))
8541 (setq point (point))
8542 (with-current-buffer (mm-handle-multipart-original-buffer handle)
8543 (let* ((mm-verify-option 'known)
8544 (mm-decrypt-option 'known)
8545 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
8546 (unless (eq nparts (cdr handle))
8547 (mm-destroy-parts (cdr handle))
8548 (setcdr handle nparts))))
8549 (gnus-mime-display-security handle)
8550 (when region
8551 (delete-region (point) (cdr region))
8552 (set-marker (car region) nil)
8553 (set-marker (cdr region) nil))
8554 (goto-char point)))
8556 (defun gnus-mime-security-show-details (handle)
8557 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
8558 (if (not details)
8559 (gnus-message 5 "No details.")
8560 (if gnus-mime-security-show-details-inline
8561 (let ((gnus-mime-security-button-pressed
8562 (not (get-text-property (point) 'gnus-mime-details)))
8563 (gnus-mime-security-button-line-format
8564 (get-text-property (point) 'gnus-line-format))
8565 (inhibit-read-only t))
8566 (forward-char -1)
8567 (while (eq (get-text-property (point) 'gnus-line-format)
8568 gnus-mime-security-button-line-format)
8569 (forward-char -1))
8570 (forward-char)
8571 (save-restriction
8572 (narrow-to-region (point) (point))
8573 (gnus-insert-mime-security-button handle))
8574 (delete-region (point)
8575 (or (text-property-not-all
8576 (point) (point-max)
8577 'gnus-line-format
8578 gnus-mime-security-button-line-format)
8579 (point-max))))
8580 ;; Not inlined.
8581 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
8582 (with-current-buffer gnus-mime-security-details-buffer
8583 (erase-buffer)
8584 t)
8585 (setq gnus-mime-security-details-buffer
8586 (gnus-get-buffer-create "*MIME Security Details*")))
8587 (with-current-buffer gnus-mime-security-details-buffer
8588 (insert details)
8589 (goto-char (point-min)))
8590 (pop-to-buffer gnus-mime-security-details-buffer)))))
8592 (defun gnus-mime-security-press-button (handle)
8593 (save-excursion
8594 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8595 (gnus-mime-security-show-details handle)
8596 (gnus-mime-security-verify-or-decrypt handle))))
8598 (defun gnus-insert-mime-security-button (handle &optional displayed)
8599 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
8600 (gnus-tmp-type
8601 (concat
8602 (or (nth 2 (assoc protocol mm-verify-function-alist))
8603 (nth 2 (assoc protocol mm-decrypt-function-alist))
8604 "Unknown")
8605 (if (equal (car handle) "multipart/signed")
8606 " Signed" " Encrypted")
8607 " Part"))
8608 (gnus-tmp-info
8609 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
8610 "Undecided"))
8611 (gnus-tmp-details
8612 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
8613 gnus-tmp-pressed-details
8614 b e)
8615 (setq gnus-tmp-details
8616 (if gnus-tmp-details
8618 ""))
8619 (setq gnus-tmp-pressed-details
8620 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
8621 (unless (bolp)
8623 (setq b (point))
8624 (gnus-eval-format
8625 gnus-mime-security-button-line-format
8626 gnus-mime-security-button-line-format-alist
8627 `(keymap ,gnus-mime-security-button-map
8628 gnus-callback gnus-mime-security-press-button
8629 gnus-line-format ,gnus-mime-security-button-line-format
8630 gnus-mime-details ,gnus-mime-security-button-pressed
8631 article-type annotation
8632 gnus-data ,handle))
8633 (setq e (if (bolp)
8634 ;; Exclude a newline.
8635 (1- (point))
8636 (point)))
8637 (when gnus-article-button-face
8638 (gnus-overlay-put (gnus-make-overlay b e nil t)
8639 'face gnus-article-button-face))
8640 (widget-convert-button
8641 'link b e
8642 :mime-handle handle
8643 :action 'gnus-widget-press-button
8644 :button-keymap gnus-mime-security-button-map
8645 :help-echo
8646 (lambda (widget)
8647 ;; Needed to properly clear the message due to a bug in
8648 ;; wid-edit (XEmacs only).
8649 (when (boundp 'help-echo-owns-message)
8650 (setq help-echo-owns-message t))
8651 (format
8652 "%S: show detail; %S: more options"
8653 (aref gnus-mouse-2 0)
8654 (aref gnus-down-mouse-3 0))))))
8656 (defun gnus-mime-display-security (handle)
8657 (save-restriction
8658 (narrow-to-region (point) (point))
8659 (unless (gnus-unbuttonized-mime-type-p (car handle))
8660 (gnus-insert-mime-security-button handle))
8661 (gnus-mime-display-part (cadr handle))
8662 (unless (bolp)
8664 (unless (gnus-unbuttonized-mime-type-p (car handle))
8665 (let ((gnus-mime-security-button-line-format
8666 gnus-mime-security-button-end-line-format))
8667 (gnus-insert-mime-security-button handle)))
8668 (mm-set-handle-multipart-parameter
8669 handle 'gnus-region
8670 (cons (set-marker (make-marker) (point-min))
8671 (set-marker (make-marker) (point-max))))
8672 (goto-char (point-max))))
8674 (defun gnus-mime-security-run-function (function)
8675 "Run FUNCTION with the security part under point."
8676 (gnus-article-check-buffer)
8677 (let ((data (get-text-property (point) 'gnus-data))
8678 buffer handle)
8679 (when (and (stringp (car-safe data))
8680 (setq buffer (mm-handle-multipart-original-buffer data))
8681 (setq handle (cadr data)))
8682 (if (bufferp (mm-handle-buffer handle))
8683 (progn
8684 (setq handle (cons buffer (copy-sequence (cdr handle))))
8685 (mm-handle-set-undisplayer handle nil))
8686 (setq handle (mm-make-handle
8687 buffer
8688 (mm-handle-multipart-ctl-parameter handle 'protocol)
8689 nil nil nil nil nil nil)))
8690 (funcall function handle))))
8692 (defun gnus-mime-security-save-part ()
8693 "Save the security part under point."
8694 (interactive)
8695 (gnus-mime-security-run-function 'mm-save-part))
8697 (defun gnus-mime-security-pipe-part ()
8698 "Pipe the security part under point to a process."
8699 (interactive)
8700 (gnus-mime-security-run-function 'mm-pipe-part))
8702 (gnus-ems-redefine)
8704 (provide 'gnus-art)
8706 (run-hooks 'gnus-art-load-hook)
8708 ;;; gnus-art.el ends here