| blob | eed793d23bae95d44b881908e1528549cb01a5db |
1 ;;; gnus-art.el --- article mode commands for Gnus
3 ;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4 ;; 2005, 2006 Free Software Foundation, Inc.
6 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
7 ;; Keywords: news
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; any later version.
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 ;; Boston, MA 02110-1301, USA.
26 ;;; Commentary:
28 ;;; Code:
55 "Article display."
60 "Treating article parts."
65 "Hiding article parts."
70 "Article highlighting."
76 "Article signatures."
81 "Article headers."
86 "Special commands on articles."
91 "Fontisizing articles."
96 "Saving articles."
101 "Worshiping the MIME wonder."
106 "Pushable buttons in the article buffer."
111 "Other article options."
157 "*All headers that start with this regexp will be hidden.
158 This variable can also be a list of regexps of headers to be ignored.
159 If `gnus-visible-headers' is non-nil, this variable will be ignored."
161 regexp
166 "^From:\\|^Newsgroups:\\|^Subject:\\|^Date:\\|^Followup-To:\\|^Reply-To:\\|^Organization:\\|^Summary:\\|^Keywords:\\|^To:\\|^[BGF]?Cc:\\|^Posted-To:\\|^Mail-Copies-To:\\|^Mail-Followup-To:\\|^Apparently-To:\\|^Gnus-Warning:\\|^Resent-From:\\|^X-Sent:"
167 "*All headers that do not match this regexp will be hidden.
168 This variable can also be a list of regexp of headers to remain visible.
169 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
175 regexp)
181 "*This variable is a list of regular expressions.
182 If it is non-nil, headers that match the regular expressions will
183 be placed first in the article buffer in the sequence specified by
184 this list."
189 "Headers that are only to be displayed if they have interesting data.
190 Possible values in this list are:
192 'empty Headers with no content.
193 'newsgroups Newsgroup identical to Gnus group.
194 'to-address To identical to To-address.
195 'to-list To identical to To-list.
196 'cc-list CC identical to To-list.
197 'followup-to Followup-to identical to Newsgroups.
198 'reply-to Reply-to identical to From.
199 'date Date less than four days old.
200 'long-to To and/or Cc longer than 1024 characters.
201 'many-to Multiple To and/or Cc."
215 "Skip over text that is not worth reading.
216 By default, if you set this t, then Gnus will display citations and
217 signatures, but will never scroll down to show you a page consisting
218 only of boring text. Boring text is controlled by
219 `gnus-article-boring-faces'."
225 "Regexp matching signature separator.
226 This can also be a list of regexps. In that case, it will be checked
227 from head to tail looking for a separator. Searches will be done from
228 the end of the buffer."
235 "Provide a limit to what is considered a signature.
236 If it is a number, no signature may not be longer (in characters) than
237 that number. If it is a floating point number, no signature may be
238 longer (in lines) than that number. If it is a function, the function
239 will be called without any parameters, and if it returns nil, there is
240 no signature in the buffer. If it is a string, it will be used as a
241 regexp. If it matches, the text in question is not a signature."
250 "Property list to use for hiding text."
254 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
255 ;; frames in a session.
260 'gnus-display-x-face-in-from
263 'gnus-display-x-face-in-from
264 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | \
266 "*String or function to be executed to display an X-Face header.
267 If it is a string, the command will be executed in a sub-shell
268 asynchronously. The compressed face will be piped to this command."
271 function)
277 "Regexp matching posters whose face shouldn't be shown automatically."
282 "Banner alist for stripping.
283 For example,
284 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
290 banner
291 :variable-document
292 "Alist of regexps (to match group names) and banner."
293 :variable-group gnus-article-washing
294 :parameter-type
296 :value nil
299 regexp
301 :parameter-document
302 "If non-nil, specify how to remove `banners' from articles.
304 Symbol `signature' means to remove signatures delimited by
305 `gnus-signature-separator'. Any other symbol is used to look up a
306 regular expression to match the banner in `gnus-article-banner-alist'.
307 A string is used as a regular expression to match the banner
311 "Alist of mail addresses and banners.
312 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
313 to match a mail address in the From: header, BANNER is one of a symbol
314 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
315 If ADDRESS matches author's mail address, it will remove things like
316 advertisements. For example:
319 "
326 regexp
341 2
344 value)))
352 pattern)
357 value))))
375 types))
377 ;; several times seen it triggered by normal text. --Stef
378 ;; Miles suggests that this form is sometimes used but for italics,
379 ;; so maybe we should map it to `italic'.
380 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
381 ;; 2 3 gnus-emphasis-strikethru)
384 "*Alist that says how to fontify certain phrases.
385 Each item looks like this:
389 The first element is a regular expression to be matched. The second
390 is a number that says what regular expression grouping used to find
391 the entire emphasized word. The third is a number that says what
392 regexp grouping should be displayed and highlighted. The fourth
393 is the face used for highlighting."
394 :type
401 :value-create
409 widget
410 :value
413 regexp
416 face)
424 face)))
430 value)))
434 "A regexp to describe whitespace which should not be emphasized.
436 The former avoids underlining of leading and trailing whitespace,
437 and the latter avoids underlining any whitespace at all."
443 "Face used for displaying strong emphasized text (*word*)."
447 "Face used for displaying italic emphasized text (/word/)."
451 "Face used for displaying underlined emphasized text (_word_)."
455 "Face used for displaying underlined bold emphasized text (_*word*_)."
459 "Face used for displaying underlined italic emphasized text (_/word/_)."
463 "Face used for displaying bold italic emphasized text (/*word*/)."
468 "Face used for displaying underlined bold italic emphasized text.
469 Example: (_/*word*/_)."
475 "Face used for displaying strike-through text (-word-)."
480 "Face used for displaying highlighted words."
484 "Format for display of Date headers in article bodies.
485 See `format-time-string' for the possible values.
487 The variable can also be function, which should return a complete Date
488 header. The function is called with one argument, the time, which can
489 be fed to `format-time-string'."
495 "*If non-nil, don't remove any headers before saving."
500 "*This variable says how much prompting is to be done when saving articles.
501 If it is nil, no prompting will be done, and the articles will be
502 saved to the default files. If this variable is `always', each and
503 every article that is saved will be preceded by a prompt, even when
504 saving large batches of articles. If this variable is neither nil not
505 `always', there the user will be prompted once for a file name for
506 each invocation of the saving commands."
513 "Headers to keep if `gnus-save-all-headers' is nil.
514 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
515 If that variable is nil, however, all headers that match this regexp
516 will be kept while the rest will be deleted before saving."
521 "A function to save articles in your favourite format.
522 The function must be interactively callable (in other words, it must
523 be an Emacs command).
525 Gnus provides the following functions:
527 * gnus-summary-save-in-rmail (Rmail format)
528 * gnus-summary-save-in-mail (Unix mail format)
529 * gnus-summary-save-in-folder (MH folder)
530 * gnus-summary-save-in-file (article format)
531 * gnus-summary-save-body-in-file (article body)
532 * gnus-summary-save-in-vm (use VM's folder format)
533 * gnus-summary-write-to-file (article format -- overwrite)."
545 "A function generating a file name to save articles in Rmail format.
546 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
551 "A function generating a file name to save articles in Unix mail format.
552 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
557 "A function generating a file name to save articles in MH folder.
558 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
563 "A function generating a file name to save articles in article format.
564 The function is called with NEWSGROUP, HEADERS, and optional
565 LAST-FILE."
572 "*Variable used to suggest where articles are to be saved.
573 For instance, if you would like to save articles related to Gnus in
575 you could set this variable to something like:
580 This variable is an alist where the where the key is the match and the
581 value is a list of possible files to save in if the match is non-nil.
583 If the match is a string, it is used as a regexp match on the
584 article. If the match is a symbol, that symbol will be funcalled
585 from the buffer of the article to be saved with the newsgroup as the
586 parameter. If it is a list, it will be evaled in the same buffer.
588 If this form or function returns a string, this string will be used as
589 a possible file name; and if it returns a non-nil list, that list will
590 be used as possible file names."
597 "*Regexp describing what to use as article page delimiters.
599 beginning of a line."
604 "*The format specification for the article mode line.
605 See `gnus-summary-mode-line-format' for a closer description.
607 The following additional specs are available:
609 %w The article washing status.
610 %m The number of MIME parts in the article."
615 "*A hook for Gnus article mode."
620 ;; Extracted from gnus-xmas-define in order to preserve user settings
623 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
627 "*Hook run after the creation of the article mode menu."
632 "*A hook called after an article has been prepared in the article buffer."
640 "Face used for highlighting buttons in the article buffer.
642 An article button is a piece of text that you can activate by pressing
643 `RET' or `mouse-2' above it."
648 "Face used for mouse highlighting in the article buffer.
650 Article buttons will be displayed in this face when the cursor is
651 above them."
656 "Face used for highlighting a signature in the article buffer.
657 Obsolete; use the face `gnus-signature' for customizations instead."
665 "Face used for highlighting a signature in the article buffer."
668 ;; backward-compatibility alias
680 "Face used for displaying from headers."
683 ;; backward-compatibility alias
695 "Face used for displaying subject headers."
698 ;; backward-compatibility alias
710 "Face used for displaying newsgroups headers.
711 In the default setup this face is only used for crossposted
712 articles."
715 ;; backward-compatibility alias
727 "Face used for displaying header names."
730 ;; backward-compatibility alias
744 ;; backward-compatibility alias
752 "*Controls highlighting of article headers.
754 An alist of the form (HEADER NAME CONTENT).
756 HEADER is a regular expression which should match the name of a
757 header and NAME and CONTENT are either face names or nil.
759 The name of each header field will be displayed using the face
760 specified by the first element in the list where HEADER matches
761 the header name and NAME is non-nil. Similarly, the content will
762 be displayed by the first non-nil matching CONTENT face."
775 article-decode-group-name article-decode-idna-rhs)
776 "*Hook run to decode charsets in articles."
781 "Function to display MIME articles."
811 "List of MIME types that should be ignored by Gnus."
817 "List of MIME types that should not be given buttons when rendered inline.
818 See also `gnus-buttonized-mime-types' which may override this variable.
819 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
825 "List of MIME types that should be given buttons when rendered inline.
826 If set, this variable overrides `gnus-unbuttonized-mime-types'.
827 To see e.g. security buttons you could set this to
829 this list to display radio buttons that allow you to choose one of two
830 media types those mails include. See also `mm-discouraged-alternatives'.
831 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
837 "If non-nil, all MIME parts get buttons.
838 When nil (the default value), then some MIME parts do not get buttons,
839 as described by the variables `gnus-buttonized-mime-types' and
840 `gnus-unbuttonized-mime-types'."
846 "String used to delimit header and body.
847 This variable is used by `gnus-article-treat-body-boundary' which can
848 be controlled by `gnus-treat-body-boundary'."
852 string))
856 "Defines the location of the faces database.
857 For information on obtaining this database of pretty pictures, please
858 see http://www.cs.indiana.edu/picons/ftp/index.html"
867 "Say whether picons are installed on your machine."
872 installed))
875 "Function called with a MIME handle as the argument.
876 This is meant for people who want to do something automatic based
877 on parts -- for instance, adding Vcard info to a database."
880 function))
883 "An alist of MIME types to functions to display them."
889 "Whether the X-Sent and Date headers can coexist.
892 be added below it (otherwise)."
898 "Function called with a MIME handle as the argument.
899 This is meant for people who want to view first matched part.
900 For `undisplayed-alternative' (default), the first undisplayed
901 part or alternative part is used. For `undisplayed', the first
902 undisplayed part is used. For a function, the first part which
903 the function return t is used. For nil, the first part is
904 used."
926 "An alist of actions that run on the MIME attachment."
931 ;;;
932 ;;; The treatment variables
933 ;;;
958 "Highlight the signature.
959 Valid values are nil, t, `head', `last', an integer or a predicate.
960 See Info node `(gnus)Customizing Articles'."
967 "Add buttons.
968 Valid values are nil, t, `head', `last', an integer or a predicate.
969 See Info node `(gnus)Customizing Articles'."
976 "Add buttons to the head.
977 Valid values are nil, t, `head', `last', an integer or a predicate.
978 See Info node `(gnus)Customizing Articles' for details."
989 "Emphasize text.
990 Valid values are nil, t, `head', `last', an integer or a predicate.
991 See Info node `(gnus)Customizing Articles' for details."
998 "Remove carriage returns.
999 Valid values are nil, t, `head', `last', an integer or a predicate.
1000 See Info node `(gnus)Customizing Articles' for details."
1007 "Remove newlines from within URLs.
1008 Valid values are nil, t, `head', `last', an integer or a predicate.
1009 See Info node `(gnus)Customizing Articles' for details."
1016 "Remove leading whitespace in headers.
1017 Valid values are nil, t, `head', `last', an integer or a predicate.
1018 See Info node `(gnus)Customizing Articles' for details."
1025 "Hide headers.
1026 Valid values are nil, t, `head', `last', an integer or a predicate.
1027 See Info node `(gnus)Customizing Articles' for details."
1033 "Hide boring headers.
1034 Valid values are nil, t, `head', `last', an integer or a predicate.
1035 See Info node `(gnus)Customizing Articles' for details."
1041 "Hide the signature.
1042 Valid values are nil, t, `head', `last', an integer or a predicate.
1043 See Info node `(gnus)Customizing Articles' for details."
1049 "Fill the article.
1050 Valid values are nil, t, `head', `last', an integer or a predicate.
1051 See Info node `(gnus)Customizing Articles' for details."
1057 "Hide cited text.
1058 Valid values are nil, t, `head', `last', an integer or a predicate.
1059 See Info node `(gnus)Customizing Articles' for details."
1065 "Hide cited text.
1066 Valid values are nil, t, `head', `last', an integer or a predicate.
1067 See Info node `(gnus)Customizing Articles' for details."
1073 "Strip list identifiers from `gnus-list-identifiers`.
1074 Valid values are nil, t, `head', `last', an integer or a predicate.
1075 See Info node `(gnus)Customizing Articles' for details."
1085 "Strip PEM signatures.
1086 Valid values are nil, t, `head', `last', an integer or a predicate.
1087 See Info node `(gnus)Customizing Articles' for details."
1093 "Strip banners from articles.
1094 The banner to be stripped is specified in the `banner' group parameter.
1095 Valid values are nil, t, `head', `last', an integer or a predicate.
1096 See Info node `(gnus)Customizing Articles' for details."
1102 "Highlight the headers.
1103 Valid values are nil, t, `head', `last', an integer or a predicate.
1104 See Info node `(gnus)Customizing Articles' for details."
1111 "Highlight cited text.
1112 Valid values are nil, t, `head', `last', an integer or a predicate.
1113 See Info node `(gnus)Customizing Articles' for details."
1120 "Display the Date in UT (GMT).
1121 Valid values are nil, t, `head', `last', an integer or a predicate.
1122 See Info node `(gnus)Customizing Articles' for details."
1128 "Display the Date in the local timezone.
1129 Valid values are nil, t, `head', `last', an integer or a predicate.
1130 See Info node `(gnus)Customizing Articles' for details."
1136 "Display the Date in a format that can be read aloud in English.
1137 Valid values are nil, t, `head', `last', an integer or a predicate.
1138 See Info node `(gnus)Customizing Articles' for details."
1145 "Display the Date header in a way that says how much time has elapsed.
1146 Valid values are nil, t, `head', `last', an integer or a predicate.
1147 See Info node `(gnus)Customizing Articles' for details."
1153 "Display the date in the original timezone.
1154 Valid values are nil, t, `head', `last', an integer or a predicate.
1155 See Info node `(gnus)Customizing Articles' for details."
1161 "Display the date in the ISO8601 format.
1162 Valid values are nil, t, `head', `last', an integer or a predicate.
1163 See Info node `(gnus)Customizing Articles' for details."
1170 "Display the date in a user-defined format.
1171 The format is defined by the `gnus-article-time-format' variable.
1172 Valid values are nil, t, `head', `last', an integer or a predicate.
1173 See Info node `(gnus)Customizing Articles' for details."
1179 "Strip the X-No-Archive header line from the beginning of the body.
1180 Valid values are nil, t, `head', `last', an integer or a predicate.
1181 See Info node `(gnus)Customizing Articles' for details."
1188 "Strip trailing blank lines.
1189 Valid values are nil, t, `head', `last', an integer or a predicate.
1190 See Info node `(gnus)Customizing Articles' for details.
1192 When set to t, it also strips trailing blanks in all MIME parts.
1193 Consider to use `last' instead."
1199 "Strip leading blank lines.
1200 Valid values are nil, t, `head', `last', an integer or a predicate.
1201 See Info node `(gnus)Customizing Articles' for details.
1203 When set to t, it also strips trailing blanks in all MIME parts."
1209 "Strip multiple blank lines.
1210 Valid values are nil, t, `head', `last', an integer or a predicate.
1211 See Info node `(gnus)Customizing Articles' for details."
1217 "Unfold folded header lines.
1218 Valid values are nil, t, `head', `last', an integer or a predicate.
1219 See Info node `(gnus)Customizing Articles' for details."
1226 "Fold headers.
1227 Valid values are nil, t, `head', `last', an integer or a predicate.
1228 See Info node `(gnus)Customizing Articles' for details."
1235 "Fold the Newsgroups and Followup-To headers.
1236 Valid values are nil, t, `head', `last', an integer or a predicate.
1237 See Info node `(gnus)Customizing Articles' for details."
1244 "Treat overstrike highlighting.
1245 Valid values are nil, t, `head', `last', an integer or a predicate.
1246 See Info node `(gnus)Customizing Articles' for details."
1264 "Display X-Face headers.
1265 Valid values are nil, t, `head', `last', an integer or a predicate.
1266 See Info node `(gnus)Customizing Articles' and Info node
1267 `(gnus)X-Face' for details."
1272 :type gnus-article-treat-head-custom
1275 symbol
1277 value)
1280 ** gnus-treat-display-xface is an obsolete variable;\
1285 ** gnus-treat-display-xface is an obsolete variable;\
1289 value)))))
1299 "Display Face headers.
1300 Valid values are nil, t, `head', `last', an integer or a predicate.
1301 See Info node `(gnus)Customizing Articles' and Info node
1302 `(gnus)X-Face' for details."
1315 t nil)
1316 "Display smileys.
1317 Valid values are nil, t, `head', `last', an integer or a predicate.
1318 See Info node `(gnus)Customizing Articles' and Info node
1319 `(gnus)Smileys' for details."
1331 "Display picons in the From header.
1332 Valid values are nil, t, `head', `last', an integer or a predicate.
1333 See Info node `(gnus)Customizing Articles' and Info node
1334 `(gnus)Picons' for details."
1347 "Display picons in To and Cc headers.
1348 Valid values are nil, t, `head', `last', an integer or a predicate.
1349 See Info node `(gnus)Customizing Articles' and Info node
1350 `(gnus)Picons' for details."
1363 "Display picons in the Newsgroups and Followup-To headers.
1364 Valid values are nil, t, `head', `last', an integer or a predicate.
1365 See Info node `(gnus)Customizing Articles' and Info node
1366 `(gnus)Picons' for details."
1377 gnus-treat-mail-picon
1378 gnus-treat-from-picon)
1380 "Draw a boundary at the end of the headers.
1381 Valid values are nil and `head'.
1382 See Info node `(gnus)Customizing Articles' for details."
1389 "Capitalize sentence-starting words.
1390 Valid values are nil, t, `head', `last', an integer or a predicate.
1391 See Info node `(gnus)Customizing Articles' for details."
1398 "Format as HTML.
1399 Valid values are nil, t, `head', `last', an integer or a predicate.
1400 See Info node `(gnus)Customizing Articles' for details."
1407 "Fill long lines.
1408 Valid values are nil, t, `head', `last', an integer or a predicate.
1409 See Info node `(gnus)Customizing Articles' for details."
1415 "Play sounds.
1416 Valid values are nil, t, `head', `last', an integer or a predicate.
1417 See Info node `(gnus)Customizing Articles' for details."
1424 "Translate articles from one language to another.
1425 Valid values are nil, t, `head', `last', an integer or a predicate.
1426 See Info node `(gnus)Customizing Articles' for details."
1433 "Verify X-PGP-Sig.
1434 To automatically treat X-PGP-Sig, set it to head.
1435 Valid values are nil, t, `head', `last', an integer or a predicate.
1436 See Info node `(gnus)Customizing Articles' for details."
1446 ;; Set to nil if more than one protocol added to
1447 ;; gnus-article-encrypt-protocol-alist.
1449 "The protocol used for encrypt articles.
1461 "Whether IDNA decoding of headers is used when viewing messages.
1462 This requires GNU Libidn, and by default only enabled if it is found."
1468 "If non-nil, allow scrolling the article buffer even when there no more text."
1473 ;;; Internal variables
1516 gnus-article-remove-trailing-blank-lines)
1518 gnus-article-strip-leading-blank-lines)
1520 gnus-article-strip-multiple-blank-lines)
1542 ;; This causes the citation match run O(2^n).
1543 ;; (modify-syntax-entry ?- "w" table)
1546 ;; make M-. in article buffers work for `foo' strings
1549 table)
1550 "Syntax table used in article mode buffers.
1558 gnus-summary-mode-line-format-alist))
1566 ;;; Macros for dealing with the article buffer.
1591 "Go to HEADER, which is a regular expression."
1595 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
1603 "Remove hidden text properties from region between B and E."
1610 "Hide text of TYPE between B and E."
1616 "Unhide text of TYPE between B and E."
1625 "Hide text of TYPE in the current buffer."
1633 "Delete text of TYPE in the current buffer."
1637 ;; Remove MIME buttons associated with multipart/alternative parts.
1645 t))
1656 "Delete all invisible text in the current buffer."
1665 "Say whether any text of type TYPE exists in the buffer."
1669 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1677 i))
1680 "Hide unwanted headers and possibly sort them as well."
1682 ;; This function might be inhibited.
1689 ignored visible beg)
1691 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1692 ;; group parameters, so we should go to the summary buffer.
1699 gnus-ignored-headers)
1702 gnus-ignored-headers
1705 gnus-visible-headers)
1709 gnus-visible-headers
1713 ;; First we narrow to just the headers.
1715 ;; Hide any "From " lines at the beginning of (mail) articles.
1720 ;; Then treat the rest of the header lines.
1721 ;; Then we use the two regular expressions
1722 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1723 ;; select which header lines is to remain visible in the
1724 ;; article buffer.
1727 ;; Mark the rank of the header.
1739 ;; We delete the unwanted headers.
1746 "Toggle hiding of headers that aren't very interesting.
1747 If given a negative prefix, always show; if given a positive prefix,
1748 always hide."
1757 elem)
1763 ;; Hide empty headers.
1775 ;; Hide boring Newsgroups header.
1781 gnus-newsgroup-name
1793 ;; only one address in To
1795 to-address)))
1806 ;; only one address in To
1808 to-list)))
1819 ;; only one address in CC
1821 to-list)))
1836 from reply-to
1906 "Make all header lines 40 characters long."
1909 column)
1916 gnus-article-normalized-header-length)
1920 ? )))
1929 ;; Do nothing.
1930 ))
1934 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
1935 Note that this function guesses whether a character is a sm*rtq**t* or
1936 not, so it should only be used interactively.
1938 Sm*rtq**t*s are M****s***'s unilateral extension to the
1939 iso-8859-1 character map in an attempt to provide more quoting
1941 you're expecting some kind of apostrophe or quotation mark, then
1942 try this wash."
1947 "Translate all characters in the body of the article according to FROM and TO.
1948 FROM is a string of characters to translate from; to is a string of
1949 characters to translate to."
1964 "Translate all string in the body of the article according to MAP.
1969 elem)
1976 "Translate overstrikes into bold text."
1984 ;; We do the boldification/underlining by hiding the
1985 ;; overstrikes and putting the proper text property
1986 ;; on the letters.
2002 "Unfold folded message headers.
2003 Only the headers that fit into the current window width will be
2004 unfolded."
2024 "Fold message headers."
2047 "Remove all images from the article buffer."
2054 "Unfold folded message headers.
2055 Only the headers that fit into the current window width will be
2056 unfolded."
2068 "Place a boundary line at the end of the headers."
2085 "Fill lines that are wider than the window width."
2105 "Capitalize the first word in each sentence."
2116 "Remove trailing CRs and then translate remaining CRs into LFs."
2128 "Remove all trailing blank lines from the article."
2145 "Display any Face headers in the header."
2149 ;; When displaying parts, this function can be called several times on
2150 ;; the same article, without any intended toggle semantic (as typing `W
2151 ;; D d' would have). So face deletion must occur only when we come from
2152 ;; an interactive command, that is when the *Article* buffer is
2153 ;; read-only.
2169 png image)
2183 "Look for an X-Face header and display it if present."
2187 ;; Delete the old process, if any.
2190 ;; See the comment in `article-display-face'.
2192 ;; We have already displayed X-Faces, so we remove them
2193 ;; instead.
2195 ;; Display X-Faces.
2201 ;; If type `W f', use gnus-original-article-buffer,
2202 ;; otherwise use the current buffer because displaying
2203 ;; RFC822 parts calls this function too.
2210 ;; Sending multiple EOFs to xv doesn't work, so we only do a
2211 ;; single external face.
2215 gnus-article-x-face-command
2217 ;; Check whether this face is censored.
2221 from)))))
2223 ;; We display the face.
2225 ;; The command is a string, so we interpret the command
2226 ;; as a, well, command, and fork it off.
2230 "article-x-face" nil shell-file-name
2231 shell-command-switch gnus-article-x-face-command)
2232 nil)
2239 ;; The command is a lisp function, so we call it.
2243 gnus-article-x-face-command))))))))))
2246 "Decode all MIME-encoded words in the article."
2255 gnus-newsgroup-ignored-charsets)))
2259 "Decode charset-encoded text in the article.
2260 If PROMPT (the prefix), prompt for a coding system to use."
2269 gnus-newsgroup-ignored-charsets))
2270 ct cte ctl charset format)
2293 ;; The text code could have been decoded.
2304 "Remove encoded-word encoding from headers."
2311 gnus-newsgroup-ignored-charsets))
2318 "Decode group names in `Newsgroups:'."
2323 gnus-group-name-charset-group-alist)
2333 ;; XXX how to use data in article buffer?
2337 nil t)
2339 gnus-newsgroup-name method))
2348 ;; XXX how to use data in article buffer?
2352 nil t)
2354 gnus-newsgroup-name method))
2360 "Decode IDNA strings in RHS in various headers in current buffer.
2361 The following headers are decoded: From:, To:, Cc:, Reply-To:,
2362 Mail-Reply-To: and Mail-Followup-To:."
2381 "Translate a quoted-printable-encoded article.
2382 If FORCE, decode the article whether it is marked as quoted-printable
2383 or not.
2384 If READ-CHARSET, ask for a coding system."
2410 "Translate a base64 article.
2411 If FORCE, decode the article whether it is marked as base64 not.
2412 If READ-CHARSET, ask for a coding system."
2444 "Translate a HZ-encoded article."
2452 "Remove the newlines that some other mailers insert into URLs."
2465 "Format an HTML article.
2466 If READ-CHARSET, ask for a coding system. If it is a number, the
2467 charset defined in `gnus-summary-show-article-charset-alist' is used."
2471 charset)
2477 gnus-summary-show-article-charset-alist))))
2509 "Wash the current buffer with w3."
2520 "Wash the current buffer with emacs-w3m."
2523 w3m-force-redisplay)
2527 w3m-minor-mode-map)
2531 ;; Put the mark meaning this part was rendered by emacs-w3m.
2537 "Wash the current buffer with w3m."
2541 ;; The default.
2552 "Remove list identifies from the Subject header.
2553 The `gnus-list-identifiers' variable specifies what to do."
2558 gnus-list-identifiers))
2567 nil t)
2575 "Toggle hiding of any PEM headers and signatures in the current article.
2576 If given a negative prefix, always show; if given a positive prefix,
2577 always hide."
2583 ;; Hide the horrendously ugly "header".
2586 nil t)
2590 end
2595 ;; Hide the trailer as well
2597 nil t)
2602 "Strip the banners specified by the `banner' group parameter and by
2603 `gnus-article-address-banner-alist'."
2612 ;; Note that the From header is decoded here, so it is
2613 ;; required that the *-extract-address-components function
2614 ;; supports non-ASCII text.
2622 from))))
2630 "Strip the banner specified by the argument."
2652 "Translate article using an online translation service."
2669 "Hide the signature in the current article.
2670 If given a negative prefix, always show; if given a positive prefix,
2671 always hide."
2683 "Strip offensive headers from bodies."
2692 "Remove all blank lines from the beginning of the article."
2703 "Narrow the buffer to the head of the message.
2704 Point is left at the beginning of the narrowed-to region."
2713 "Place point at the start of the body."
2716 ;; This variable is only bound when dealing with separate
2717 ;; MIME body parts.
2719 t)
2721 t)
2724 nil)))
2727 "Replace consecutive blank lines with one empty line."
2732 ;; First make all blank lines empty.
2738 ;; Then replace multiple empty lines with a single empty line.
2746 "Remove all white space from the beginning of the lines in the article."
2756 "Remove all white space from the end of the lines in the article."
2766 "Strip leading, trailing and multiple blank lines."
2773 "Strip all blank lines."
2783 "Narrow to the signature; return t if a signature is found, else nil."
2787 ;; Check whether we have some limits to what we consider
2788 ;; to be a signature.
2791 limit limited)
2803 limits nil)))
2806 t)))))
2809 "Search the current buffer for the signature separator.
2810 Put point at the beginning of the signature separator."
2819 seps))
2820 t
2822 nil)))
2825 "Return the current prefix arg as a number, or 0 if no prefix."
2831 "Return nil if hiding is necessary.
2832 Arg can be nil or a number. nil and positive means hide, negative
2833 means show, 0 means toggle."
2840 nil)
2843 t)
2848 t)
2849 nil)))))))
2852 "Say whether the current buffer contains hidden text of type TYPE."
2860 'hidden
2861 nil)))
2864 "Show all hidden text of type TYPE.
2865 Originally it is hide instead of DUMMY."
2869 'article-type type
2872 gnus-hidden-properties)))
2885 "Move point to the start of the next header.
2886 If the current header is a continuation header, this can be several
2887 lines forward."
2896 "Convert DATE date to universal time in the current article.
2897 If TYPE is `local', convert to local time; if it is `lapsed', output
2898 how much time has lapsed since DATE. For `lapsed', the value of
2904 tdate-regexp)
2910 tdate-regexp)))
2914 pos date bface eface)
2924 t))
2934 ;; Delete any old Date headers.
2955 ;; Do highlighting.
2967 "Return a DATE line of TYPE."
2973 ;; Convert to the local timezone.
2979 ;; Convert to Universal Time.
2991 ;; Get the original date from the article.
2995 date)))
2996 ;; Let the user define the format.
3000 gnus-article-time-format)
3002 gnus-article-time-format)))
3006 ;; ISO 8601.
3010 "Date: "
3015 ;; Do an X-Sent lapsed format.
3017 ;; If the date is seriously mangled, the timezone functions are
3018 ;; liable to bug out, so we ignore all errors.
3025 num prev)
3033 "X-Sent: "
3034 ;; This is a bit convoluted, but basically we go
3035 ;; through the time units for years, weeks, etc,
3036 ;; and divide things to see whether that results
3037 ;; in positive answers.
3041 ;; The (remaining) seconds are too few to
3042 ;; be divided into this time unit.
3043 ""
3044 ;; It's big enough, so we output it.
3053 ;; If dates are odd, then it might appear like the
3054 ;; article was sent in the future.
3056 " ago"
3058 ;; Display the date in proper English
3062 "Date: the "
3071 " of "
3073 " "
3075 " at "
3077 ":"
3083 "Convert the current article date to the local timezone."
3088 "Convert the current article date to something that is proper English."
3093 "Convert the current article date to what it was originally.
3094 This is only useful if you have used some other date conversion
3095 function and want to see what the date was before converting."
3100 "Convert the current article date to time lapsed since it was sent."
3105 "Function to be run from a timer to update the lapsed time line."
3123 "Start a timer to update the X-Sent header in the article buffers.
3124 The numerical prefix says how frequently (in seconds) the function
3125 is to run."
3134 "Stop the X-Sent timer."
3141 "Convert the current article date to the user-defined format.
3142 This format is defined by the `gnus-article-time-format' variable."
3147 "Convert the current article date to ISO8601."
3152 "Save the original date as a text property and evaluate FORMS."
3161 nil t))
3167 ,@forms
3172 ;; (defun article-show-all ()
3173 ;; "Show all hidden text in the article buffer."
3174 ;; (interactive)
3175 ;; (save-excursion
3176 ;; (let ((inhibit-read-only t))
3177 ;; (gnus-article-unhide-text (point-min) (point-max)))))
3180 "Remove excessive whitespace from all headers."
3191 "Emphasize text according to `gnus-emphasis-alist'."
3198 gnus-article-emphasis-alist)
3200 gnus-emphasis-alist))
3203 gnus-hidden-properties))
3204 regexp elem beg invisible visible face)
3225 "Setup newsgroup emphasis alist."
3237 highlight)
3242 gnus-emphasis-alist)))))
3248 ;;; Saving functions.
3251 "Save the currently selected article."
3253 ;; Remove headers according to `gnus-saved-headers'.
3263 ;; !!! Magic! The saving functions all save
3264 ;; `gnus-save-article-buffer' (or so they think), but we
3265 ;; bind that variable to our save-buffer.
3280 function group headers variable)
3283 result)
3288 default-name)
3290 default-name)
3299 gnus-number-of-articles-to-be-saved)
3302 ;; Let the split methods have their say.
3304 ;; No split name was found.
3310 default-name))
3311 ;; A single group name is returned.
3320 default-name))
3321 ;; A single split name was found
3325 gnus-article-save-directory))
3332 dir name)))
3333 ;; A list of splits was found.
3343 gnus-article-save-directory
3345 gnus-article-save-directory)))
3347 ;; Create the directory.
3349 ;; If we have read a directory, we append the default file name.
3352 default-name)
3354 ;; Possibly translate some characters.
3367 "If GROUP is an nndoc group, return the name of the parent group."
3372 "Append this article to Rmail file.
3373 Optional argument FILENAME specifies file name.
3374 Directory to save to is default to `gnus-article-save-directory'."
3376 "Save %s in rmail file" filename
3377 gnus-rmail-save-name gnus-newsgroup-name
3384 filename)
3387 "Append this article to Unix mail file.
3388 Optional argument FILENAME specifies file name.
3389 Directory to save to is default to `gnus-article-save-directory'."
3391 "Save %s in Unix mail file" filename
3392 gnus-mail-save-name gnus-newsgroup-name
3403 filename)
3406 "Append this article to file.
3407 Optional argument FILENAME specifies file name.
3408 Directory to save to is default to `gnus-article-save-directory'."
3410 "Save %s in file" filename
3411 gnus-file-save-name gnus-newsgroup-name
3421 filename)
3424 "Write this article to a file, overwriting it if the file exists.
3425 Optional argument FILENAME specifies file name.
3426 The directory to save in defaults to `gnus-article-save-directory'."
3430 "Append this article body to a file.
3431 Optional argument FILENAME specifies file name.
3432 The directory to save in defaults to `gnus-article-save-directory'."
3434 "Save %s body in file" filename
3435 gnus-file-save-name gnus-newsgroup-name
3444 filename)
3447 "Pipe this article to subprocess."
3450 gnus-last-shell-command)
3451 gnus-last-shell-command)
3453 command)
3456 "Shell command on %s: "
3460 gnus-number-of-articles-to-be-saved)
3462 gnus-last-shell-command))))
3474 default-value)
3475 "Like `read-string' but allow for older XEmacsen that don't have the 5th arg."
3482 "Pipe this article to muttprint."
3484 "Print using command: " gnus-summary-muttprint-program
3485 nil gnus-summary-muttprint-program))
3488 ;;; Article file names when saving.
3491 "Capitalize NEWSGROUP name."
3497 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
3498 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
3499 Otherwise, it is like ~/News/news/group/num."
3506 gnus-article-save-directory)))
3511 default
3515 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
3516 If variable `gnus-use-long-file-name' is non-nil, it is
3517 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
3521 newsgroup
3524 gnus-article-save-directory)))
3529 default
3533 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
3534 If variable `gnus-use-long-file-name' is non-nil, it is
3535 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
3539 newsgroup
3542 default-directory))
3543 gnus-article-save-directory)))
3546 "Generate file name from sender."
3552 gnus-article-save-directory)))
3555 "Verify X-PGP-Sig."
3560 items info headers)
3562 mml2015-use
3570 ;; Don't verify multiple headers.
3620 ;; Do highlighting.
3629 "Verify Cancel-Lock header."
3654 article-verify-x-pgp-sig
3655 article-verify-cancel-lock
3656 article-hide-boring-headers
3657 article-treat-overstrike
3658 article-fill-long-lines
3659 article-capitalize-sentences
3660 article-remove-cr
3661 article-remove-leading-whitespace
3662 article-display-x-face
3663 article-display-face
3664 article-de-quoted-unreadable
3665 article-de-base64-unreadable
3666 article-decode-HZ
3667 article-wash-html
3668 article-unsplit-urls
3669 article-hide-list-identifiers
3670 article-strip-banner
3671 article-babel
3672 article-hide-pem
3673 article-hide-signature
3674 article-strip-headers-in-body
3675 article-remove-trailing-blank-lines
3676 article-strip-leading-blank-lines
3677 article-strip-multiple-blank-lines
3678 article-strip-leading-space
3679 article-strip-trailing-space
3680 article-strip-blank-lines
3681 article-strip-all-blank-lines
3682 article-date-local
3683 article-date-english
3684 article-date-iso8601
3685 article-date-original
3686 article-date-ut
3687 article-decode-mime-words
3688 article-decode-charset
3689 article-decode-encoded-words
3690 article-date-user
3691 article-date-lapsed
3692 article-emphasize
3693 article-treat-dumbquotes
3694 article-normalize-headers
3695 ;; (article-show-all . gnus-article-show-all-headers)
3696 )))
3697 \f
3698 ;;;
3699 ;;; Gnus article mode
3700 ;;;
3707 " " gnus-article-goto-next-page
3709 [delete] gnus-article-goto-prev-page
3710 [backspace] gnus-article-goto-prev-page
3711 "\C-c^" gnus-article-refer-article
3712 "h" gnus-article-show-summary
3713 "s" gnus-article-show-summary
3714 "\C-c\C-m" gnus-article-mail
3715 "?" gnus-article-describe-briefly
3716 "e" gnus-summary-edit-article
3717 "<" beginning-of-buffer
3718 ">" end-of-buffer
3719 "\C-c\C-i" gnus-info-find-node
3720 "\C-c\C-b" gnus-bug
3721 "R" gnus-article-reply-with-original
3722 "F" gnus-article-followup-with-original
3723 "\C-hk" gnus-article-describe-key
3724 "\C-hc" gnus-article-describe-key-briefly
3726 "\C-d" gnus-article-read-summary-keys
3727 "\M-*" gnus-article-read-summary-keys
3728 "\M-#" gnus-article-read-summary-keys
3729 "\M-^" gnus-article-read-summary-keys
3730 "\M-g" gnus-article-read-summary-keys)
3732 (substitute-key-definition
3733 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
3735 (defun gnus-article-make-menu-bar ()
3736 (unless (boundp 'gnus-article-commands-menu)
3737 (gnus-summary-make-menu-bar))
3738 (gnus-turn-off-edit-menu 'article)
3739 (unless (boundp 'gnus-article-article-menu)
3740 (easy-menu-define
3741 gnus-article-article-menu gnus-article-mode-map ""
3742 '("Article"
3743 ["Scroll forwards" gnus-article-goto-next-page t]
3744 ["Scroll backwards" gnus-article-goto-prev-page t]
3745 ["Show summary" gnus-article-show-summary t]
3746 ["Fetch Message-ID at point" gnus-article-refer-article t]
3747 ["Mail to address at point" gnus-article-mail t]
3748 ["Send a bug report" gnus-bug t]))
3750 (easy-menu-define
3751 gnus-article-treatment-menu gnus-article-mode-map ""
3752 ;; Fixme: this should use :active (and maybe :visible).
3753 '("Treatment"
3754 ["Hide headers" gnus-article-hide-headers t]
3755 ["Hide signature" gnus-article-hide-signature t]
3756 ["Hide citation" gnus-article-hide-citation t]
3757 ["Treat overstrike" gnus-article-treat-overstrike t]
3758 ["Remove carriage return" gnus-article-remove-cr t]
3759 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
3760 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
3761 ["Remove base64" gnus-article-de-base64-unreadable t]
3762 ["Treat html" gnus-article-wash-html t]
3763 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
3764 ["Decode HZ" gnus-article-decode-HZ t]))
3766 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
3768 ;; Note "Post" menu is defined in gnus-sum.el for consistency
3770 (gnus-run-hooks 'gnus-article-menu-hook)))
3772 (defun gnus-article-mode ()
3773 "Major mode for displaying an article.
3775 All normal editing commands are switched off.
3777 The following commands are available in addition to all summary mode
3778 commands:
3787 (interactive)
3788 (kill-all-local-variables)
3789 (gnus-simplify-mode-line)
3790 (setq mode-name "Article")
3791 (setq major-mode 'gnus-article-mode)
3792 (make-local-variable 'minor-mode-alist)
3793 (use-local-map gnus-article-mode-map)
3794 (when (gnus-visual-p 'article-menu 'menu)
3795 (gnus-article-make-menu-bar)
3796 (when gnus-summary-tool-bar-map
3797 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
3798 (gnus-update-format-specifications nil 'article-mode)
3799 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
3800 (set (make-local-variable 'gnus-page-broken) nil)
3801 (make-local-variable 'gnus-button-marker-list)
3802 (make-local-variable 'gnus-article-current-summary)
3803 (make-local-variable 'gnus-article-mime-handles)
3804 (make-local-variable 'gnus-article-decoded-p)
3805 (make-local-variable 'gnus-article-mime-handle-alist)
3806 (make-local-variable 'gnus-article-wash-types)
3807 (make-local-variable 'gnus-article-image-alist)
3808 (make-local-variable 'gnus-article-charset)
3809 (make-local-variable 'gnus-article-ignored-charsets)
3810 ;; Prevent recent Emacsen from displaying non-break space as "\ ".
3811 (set (make-local-variable 'nobreak-char-display) nil)
3812 (gnus-set-default-directory)
3813 (buffer-disable-undo)
3814 (setq buffer-read-only t)
3815 (set-syntax-table gnus-article-mode-syntax-table)
3816 (mm-enable-multibyte)
3817 (gnus-run-mode-hooks 'gnus-article-mode-hook))
3819 (defun gnus-article-setup-buffer ()
3820 "Initialize the article buffer."
3821 (let* ((name (if gnus-single-article-buffer "*Article*"
3822 (concat "*Article " gnus-newsgroup-name "*")))
3823 (original
3825 (concat " *Original Article"
3826 (substring name (match-end 0))))))
3827 (setq gnus-article-buffer name)
3828 (setq gnus-original-article-buffer original)
3829 (setq gnus-article-mime-handle-alist nil)
3830 ;; This might be a variable local to the summary buffer.
3831 (unless gnus-single-article-buffer
3832 (save-excursion
3833 (set-buffer gnus-summary-buffer)
3834 (setq gnus-article-buffer name)
3835 (setq gnus-original-article-buffer original)
3836 (gnus-set-global-variables)))
3837 (gnus-article-setup-highlight-words)
3838 ;; Init original article buffer.
3839 (save-excursion
3840 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
3841 (mm-enable-multibyte)
3842 (setq major-mode 'gnus-original-article-mode)
3843 (make-local-variable 'gnus-original-article))
3844 (if (and (get-buffer name)
3845 (with-current-buffer name
3846 (if gnus-article-edit-mode
3847 (if (y-or-n-p "Article mode edit in progress; discard? ")
3848 (progn
3849 (set-buffer-modified-p nil)
3850 (gnus-kill-buffer name)
3851 (message "")
3852 nil)
3853 (error "Action aborted"))
3854 t)))
3855 (save-excursion
3856 (set-buffer name)
3857 (set (make-local-variable 'gnus-article-edit-mode) nil)
3858 (when gnus-article-mime-handles
3859 (mm-destroy-parts gnus-article-mime-handles)
3860 (setq gnus-article-mime-handles nil))
3861 ;; Set it to nil in article-buffer!
3862 (setq gnus-article-mime-handle-alist nil)
3863 (buffer-disable-undo)
3864 (setq buffer-read-only t)
3865 ;; This list just keeps growing if we don't reset it.
3866 (setq gnus-button-marker-list nil)
3867 (unless (eq major-mode 'gnus-article-mode)
3868 (gnus-article-mode))
3869 (current-buffer))
3870 (save-excursion
3871 (set-buffer (gnus-get-buffer-create name))
3872 (gnus-article-mode)
3873 (make-local-variable 'gnus-summary-buffer)
3874 (gnus-summary-set-local-parameters gnus-newsgroup-name)
3875 (current-buffer)))))
3877 ;; Set article window start at LINE, where LINE is the number of lines
3878 ;; from the head of the article.
3879 (defun gnus-article-set-window-start (&optional line)
3880 (set-window-start
3881 (gnus-get-buffer-window gnus-article-buffer t)
3882 (save-excursion
3883 (set-buffer gnus-article-buffer)
3884 (goto-char (point-min))
3885 (if (not line)
3886 (point-min)
3887 (gnus-message 6 "Moved to bookmark")
3889 (forward-line line)
3890 (point)))))
3892 (defun gnus-article-prepare (article &optional all-headers header)
3893 "Prepare ARTICLE in article mode buffer.
3894 ARTICLE should either be an article number or a Message-ID.
3895 If ARTICLE is an id, HEADER should be the article headers.
3896 If ALL-HEADERS is non-nil, no headers are hidden."
3897 (save-excursion
3898 ;; Make sure we start in a summary buffer.
3899 (unless (eq major-mode 'gnus-summary-mode)
3900 (set-buffer gnus-summary-buffer))
3901 (setq gnus-summary-buffer (current-buffer))
3902 (let* ((gnus-article (if header (mail-header-number header) article))
3903 (summary-buffer (current-buffer))
3904 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
3905 (group gnus-newsgroup-name)
3906 result)
3907 (save-excursion
3908 (gnus-article-setup-buffer)
3909 (set-buffer gnus-article-buffer)
3910 ;; Deactivate active regions.
3911 (when (and (boundp 'transient-mark-mode)
3912 transient-mark-mode)
3913 (setq mark-active nil))
3914 (if (not (setq result (let ((inhibit-read-only t))
3915 (gnus-request-article-this-buffer
3916 article group))))
3917 ;; There is no such article.
3918 (save-excursion
3919 (when (and (numberp article)
3920 (not (memq article gnus-newsgroup-sparse)))
3921 (setq gnus-article-current
3922 (cons gnus-newsgroup-name article))
3923 (set-buffer gnus-summary-buffer)
3924 (setq gnus-current-article article)
3925 (if (and (memq article gnus-newsgroup-undownloaded)
3926 (not (gnus-online (gnus-find-method-for-group
3927 gnus-newsgroup-name))))
3928 (progn
3929 (gnus-summary-set-agent-mark article)
3930 (message "Message marked for downloading"))
3931 (gnus-summary-mark-article article gnus-canceled-mark)
3932 (unless (memq article gnus-newsgroup-sparse)
3933 (gnus-error 1 "No such article (may have expired or been canceled)")))))
3934 (if (or (eq result 'pseudo)
3935 (eq result 'nneething))
3936 (progn
3937 (save-excursion
3938 (set-buffer summary-buffer)
3939 (push article gnus-newsgroup-history)
3940 (setq gnus-last-article gnus-current-article
3941 gnus-current-article 0
3942 gnus-current-headers nil
3943 gnus-article-current nil)
3944 (if (eq result 'nneething)
3945 (gnus-configure-windows 'summary)
3946 (gnus-configure-windows 'article))
3947 (gnus-set-global-variables))
3948 (let ((gnus-article-mime-handle-alist-1
3949 gnus-article-mime-handle-alist))
3950 (gnus-set-mode-line 'article)))
3951 ;; The result from the `request' was an actual article -
3952 ;; or at least some text that is now displayed in the
3953 ;; article buffer.
3954 (when (and (numberp article)
3955 (not (eq article gnus-current-article)))
3956 ;; Seems like a new article has been selected.
3957 ;; `gnus-current-article' must be an article number.
3958 (save-excursion
3959 (set-buffer summary-buffer)
3960 (push article gnus-newsgroup-history)
3961 (setq gnus-last-article gnus-current-article
3962 gnus-current-article article
3963 gnus-current-headers
3964 (gnus-summary-article-header gnus-current-article)
3965 gnus-article-current
3966 (cons gnus-newsgroup-name gnus-current-article))
3967 (unless (vectorp gnus-current-headers)
3968 (setq gnus-current-headers nil))
3969 (gnus-summary-goto-subject gnus-current-article)
3970 (when (gnus-summary-show-thread)
3971 ;; If the summary buffer really was folded, the
3972 ;; previous goto may not actually have gone to
3973 ;; the right article, but the thread root instead.
3974 ;; So we go again.
3975 (gnus-summary-goto-subject gnus-current-article))
3976 (gnus-run-hooks 'gnus-mark-article-hook)
3977 (gnus-set-mode-line 'summary)
3978 (when (gnus-visual-p 'article-highlight 'highlight)
3979 (gnus-run-hooks 'gnus-visual-mark-article-hook))
3980 ;; Set the global newsgroup variables here.
3981 (gnus-set-global-variables)
3982 (setq gnus-have-all-headers
3983 (or all-headers gnus-show-all-headers))))
3984 (save-excursion
3985 (gnus-configure-windows 'article))
3986 (when (or (numberp article)
3987 (stringp article))
3988 (gnus-article-prepare-display)
3989 ;; Do page break.
3990 (goto-char (point-min))
3991 (when gnus-break-pages
3992 (gnus-narrow-to-page)))
3993 (let ((gnus-article-mime-handle-alist-1
3994 gnus-article-mime-handle-alist))
3995 (gnus-set-mode-line 'article))
3996 (article-goto-body)
3997 (unless (bobp)
3998 (forward-line -1))
3999 (set-window-point (get-buffer-window (current-buffer)) (point))
4000 (gnus-configure-windows 'article)
4001 t))))))
4003 ;;;###autoload
4004 (defun gnus-article-prepare-display ()
4005 "Make the current buffer look like a nice article."
4006 ;; Hooks for getting information from the article.
4007 ;; This hook must be called before being narrowed.
4008 (let ((gnus-article-buffer (current-buffer))
4009 buffer-read-only
4010 (inhibit-read-only t))
4011 (unless (eq major-mode 'gnus-article-mode)
4012 (gnus-article-mode))
4013 (setq buffer-read-only nil
4014 gnus-article-wash-types nil
4015 gnus-article-image-alist nil)
4016 (gnus-run-hooks 'gnus-tmp-internal-hook)
4017 (when gnus-display-mime-function
4018 (funcall gnus-display-mime-function))
4019 (gnus-run-hooks 'gnus-article-prepare-hook)))
4021 ;;;
4022 ;;; Gnus MIME viewing functions
4023 ;;;
4026 "Format of the MIME buttons.
4028 Valid specifiers include:
4029 %t The MIME type
4030 %T MIME type, along with additional info
4031 %n The `name' parameter
4032 %d The description, if any
4033 %l The length of the encoded part
4034 %p The part identifier number
4035 %e Dots if the part isn't displayed
4037 General format specifiers can also be used. See Info node
4038 `(gnus)Formatting Variables'.")
4040 (defvar gnus-mime-button-line-format-alist
4041 '((?t gnus-tmp-type ?s)
4042 (?T gnus-tmp-type-long ?s)
4043 (?n gnus-tmp-name ?s)
4044 (?d gnus-tmp-description ?s)
4045 (?p gnus-tmp-id ?s)
4046 (?l gnus-tmp-length ?d)
4047 (?e gnus-tmp-dots ?s)))
4049 (defvar gnus-mime-button-commands
4051 (gnus-mime-view-part "v" "View Interactively...")
4052 (gnus-mime-view-part-as-type "t" "View As Type...")
4053 (gnus-mime-view-part-as-charset "C" "View As charset...")
4054 (gnus-mime-save-part "o" "Save...")
4055 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
4056 (gnus-mime-delete-part "d" "Delete part")
4057 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
4058 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
4059 (gnus-mime-view-part-internally "E" "View Internally")
4060 (gnus-mime-view-part-externally "e" "View Externally")
4061 (gnus-mime-print-part "p" "Print")
4062 (gnus-mime-pipe-part "|" "Pipe To Command...")
4063 (gnus-mime-action-on-part "." "Take action on the part...")))
4065 (defun gnus-article-mime-part-status ()
4066 (if gnus-article-mime-handle-alist-1
4067 (if (eq 1 (length gnus-article-mime-handle-alist-1))
4068 " (1 part)"
4069 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
4070 ""))
4072 (defvar gnus-mime-button-map
4073 (let ((map (make-sparse-keymap)))
4074 (unless (>= (string-to-number emacs-version) 21)
4075 ;; XEmacs doesn't care.
4076 (set-keymap-parent map gnus-article-mode-map))
4077 (define-key map gnus-mouse-2 'gnus-article-push-button)
4078 (define-key map gnus-down-mouse-3 'gnus-mime-button-menu)
4079 (dolist (c gnus-mime-button-commands)
4080 (define-key map (cadr c) (car c)))
4081 map))
4083 (easy-menu-define
4084 gnus-mime-button-menu gnus-mime-button-map "MIME button menu."
4085 `("MIME Part"
4086 ,@(mapcar (lambda (c)
4087 (vector (caddr c) (car c) :enable t))
4088 gnus-mime-button-commands)))
4090 (eval-when-compile
4091 (define-compiler-macro popup-menu (&whole form
4092 menu &optional position prefix)
4093 (if (and (fboundp 'popup-menu)
4094 (not (memq 'popup-menu (assoc "lmenu" load-history))))
4095 form
4096 ;; Gnus is probably running under Emacs 20.
4097 `(let* ((menu (cdr ,menu))
4098 (response (x-popup-menu
4099 t (list (car menu)
4100 (cons "" (mapcar (lambda (c)
4101 (cons (caddr c) (car c)))
4102 (cdr menu)))))))
4103 (if response
4104 (call-interactively (nth 3 (assq response menu))))))))
4106 (defun gnus-mime-button-menu (event prefix)
4107 "Construct a context-sensitive menu of MIME commands."
4109 (save-window-excursion
4110 (let ((pos (event-start event)))
4111 (select-window (posn-window pos))
4112 (goto-char (posn-point pos))
4113 (gnus-article-check-buffer)
4114 (popup-menu gnus-mime-button-menu nil prefix))))
4116 (defun gnus-mime-view-all-parts (&optional handles)
4117 "View all the MIME parts."
4118 (interactive)
4119 (save-current-buffer
4120 (set-buffer gnus-article-buffer)
4121 (let ((handles (or handles gnus-article-mime-handles))
4122 (mail-parse-charset gnus-newsgroup-charset)
4123 (mail-parse-ignored-charsets
4124 (with-current-buffer gnus-summary-buffer
4125 gnus-newsgroup-ignored-charsets)))
4126 (when handles
4127 (mm-remove-parts handles)
4128 (goto-char (point-min))
4130 (let ((inhibit-read-only t))
4131 (delete-region (point) (point-max))
4132 (mm-display-parts handles))))))
4134 (defun gnus-mime-save-part-and-strip ()
4135 "Save the MIME part under point then replace it with an external body."
4136 (interactive)
4137 (gnus-article-check-buffer)
4138 (when (gnus-group-read-only-p)
4139 (error "The current group does not support deleting of parts"))
4140 (when (mm-complicated-handles gnus-article-mime-handles)
4141 (error "\
4142 The current article has a complicated MIME structure, giving up..."))
4143 (when (gnus-yes-or-no-p "\
4144 Deleting parts may malfunction or destroy the article; continue? ")
4145 (let* ((data (get-text-property (point) 'gnus-data))
4146 file param
4147 (handles gnus-article-mime-handles))
4148 (setq file (and data (mm-save-part data)))
4149 (when file
4150 (with-current-buffer (mm-handle-buffer data)
4151 (erase-buffer)
4152 (insert "Content-Type: " (mm-handle-media-type data))
4153 (mml-insert-parameter-string (cdr (mm-handle-type data))
4154 '(charset))
4155 ;; Add a filename for the sake of saving the part again.
4156 (mml-insert-parameter
4157 (mail-header-encode-parameter "name" (file-name-nondirectory file)))
4162 (setcdr data
4163 (cdr (mm-make-handle nil
4164 `("message/external-body"
4165 (access-type . "LOCAL-FILE")
4166 (name . ,file)))))
4167 (set-buffer gnus-summary-buffer)
4168 (gnus-article-edit-article
4169 `(lambda ()
4170 (erase-buffer)
4171 (let ((mail-parse-charset (or gnus-article-charset
4172 ',gnus-newsgroup-charset))
4173 (mail-parse-ignored-charsets
4174 (or gnus-article-ignored-charsets
4175 ',gnus-newsgroup-ignored-charsets))
4176 (mbl mml-buffer-list))
4177 (setq mml-buffer-list nil)
4178 (insert-buffer-substring gnus-original-article-buffer)
4179 (mime-to-mml ',handles)
4180 (setq gnus-article-mime-handles nil)
4181 (let ((mbl1 mml-buffer-list))
4182 (setq mml-buffer-list mbl)
4183 (set (make-local-variable 'mml-buffer-list) mbl1))
4184 (gnus-make-local-hook 'kill-buffer-hook)
4185 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
4186 `(lambda (no-highlight)
4187 (let ((mail-parse-charset (or gnus-article-charset
4188 ',gnus-newsgroup-charset))
4189 (message-options message-options)
4190 (message-options-set-recipient)
4191 (mail-parse-ignored-charsets
4192 (or gnus-article-ignored-charsets
4193 ',gnus-newsgroup-ignored-charsets)))
4194 (mml-to-mime)
4195 (mml-destroy-buffers)
4196 (remove-hook 'kill-buffer-hook
4197 'mml-destroy-buffers t)
4198 (kill-local-variable 'mml-buffer-list))
4199 (gnus-summary-edit-article-done
4200 ,(or (mail-header-references gnus-current-headers) "")
4201 ,(gnus-group-read-only-p)
4202 ,gnus-summary-buffer no-highlight)))))))
4204 (defun gnus-mime-delete-part ()
4205 "Delete the MIME part under point.
4206 Replace it with some information about the removed part."
4207 (interactive)
4208 (gnus-article-check-buffer)
4209 (when (gnus-group-read-only-p)
4210 (error "The current group does not support deleting of parts"))
4211 (when (mm-complicated-handles gnus-article-mime-handles)
4212 (error "\
4213 The current article has a complicated MIME structure, giving up..."))
4214 (when (gnus-yes-or-no-p "\
4215 Deleting parts may malfunction or destroy the article; continue? ")
4216 (let* ((data (get-text-property (point) 'gnus-data))
4217 (handles gnus-article-mime-handles)
4218 (none "(none)")
4219 (description
4220 (or
4221 (mail-decode-encoded-word-string (or (mm-handle-description data)
4222 none))))
4223 (filename
4224 (or (mail-content-type-get (mm-handle-disposition data) 'filename)
4225 none))
4226 (type (mm-handle-media-type data)))
4227 (unless data
4228 (error "No MIME part under point"))
4229 (with-current-buffer (mm-handle-buffer data)
4230 (let ((bsize (format "%s" (buffer-size))))
4231 (erase-buffer)
4232 (insert
4233 (concat
4242 (setcdr data
4243 (cdr (mm-make-handle
4244 nil `("text/plain") nil nil
4245 (list "attachment")
4246 (format "Deleted attachment (%s bytes)" bsize))))))
4247 (set-buffer gnus-summary-buffer)
4248 ;; FIXME: maybe some of the following code (borrowed from
4249 ;; `gnus-mime-save-part-and-strip') isn't necessary?
4250 (gnus-article-edit-article
4251 `(lambda ()
4252 (erase-buffer)
4253 (let ((mail-parse-charset (or gnus-article-charset
4254 ',gnus-newsgroup-charset))
4255 (mail-parse-ignored-charsets
4256 (or gnus-article-ignored-charsets
4257 ',gnus-newsgroup-ignored-charsets))
4258 (mbl mml-buffer-list))
4259 (setq mml-buffer-list nil)
4260 (insert-buffer-substring gnus-original-article-buffer)
4261 (mime-to-mml ',handles)
4262 (setq gnus-article-mime-handles nil)
4263 (let ((mbl1 mml-buffer-list))
4264 (setq mml-buffer-list mbl)
4265 (set (make-local-variable 'mml-buffer-list) mbl1))
4266 (gnus-make-local-hook 'kill-buffer-hook)
4267 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
4268 `(lambda (no-highlight)
4269 (let ((mail-parse-charset (or gnus-article-charset
4270 ',gnus-newsgroup-charset))
4271 (message-options message-options)
4272 (message-options-set-recipient)
4273 (mail-parse-ignored-charsets
4274 (or gnus-article-ignored-charsets
4275 ',gnus-newsgroup-ignored-charsets)))
4276 (mml-to-mime)
4277 (mml-destroy-buffers)
4278 (remove-hook 'kill-buffer-hook
4279 'mml-destroy-buffers t)
4280 (kill-local-variable 'mml-buffer-list))
4281 (gnus-summary-edit-article-done
4282 ,(or (mail-header-references gnus-current-headers) "")
4283 ,(gnus-group-read-only-p)
4284 ,gnus-summary-buffer no-highlight)))))
4285 ;; Not in `gnus-mime-save-part-and-strip':
4286 (gnus-article-edit-done)
4287 (gnus-summary-expand-window)
4288 (gnus-summary-show-article))
4290 (defun gnus-mime-save-part ()
4291 "Save the MIME part under point."
4292 (interactive)
4293 (gnus-article-check-buffer)
4294 (let ((data (get-text-property (point) 'gnus-data)))
4295 (when data
4296 (mm-save-part data))))
4298 (defun gnus-mime-pipe-part ()
4299 "Pipe the MIME part under point to a process."
4300 (interactive)
4301 (gnus-article-check-buffer)
4302 (let ((data (get-text-property (point) 'gnus-data)))
4303 (when data
4304 (mm-pipe-part data))))
4306 (defun gnus-mime-view-part ()
4307 "Interactively choose a viewing method for the MIME part under point."
4308 (interactive)
4309 (gnus-article-check-buffer)
4310 (let ((data (get-text-property (point) 'gnus-data)))
4311 (when data
4312 (setq gnus-article-mime-handles
4313 (mm-merge-handles
4314 gnus-article-mime-handles (setq data (copy-sequence data))))
4315 (mm-interactively-view-part data))))
4317 (defun gnus-mime-view-part-as-type-internal ()
4318 (gnus-article-check-buffer)
4319 (let* ((name (mail-content-type-get
4320 (mm-handle-type (get-text-property (point) 'gnus-data))
4321 'name))
4322 (def-type (and name (mm-default-file-encoding name))))
4323 (and def-type (cons def-type 0))))
4325 (defun gnus-mime-view-part-as-type (&optional mime-type)
4326 "Choose a MIME media type, and view the part as such."
4327 (interactive)
4328 (unless mime-type
4329 (setq mime-type (completing-read
4330 "View as MIME type: "
4331 (mapcar #'list (mailcap-mime-types))
4332 nil nil
4333 (gnus-mime-view-part-as-type-internal))))
4334 (gnus-article-check-buffer)
4335 (let ((handle (get-text-property (point) 'gnus-data)))
4336 (when handle
4337 (when (equal (mm-handle-media-type handle) "message/external-body")
4338 (unless (mm-handle-cache handle)
4339 (mm-extern-cache-contents handle))
4340 (setq handle (mm-handle-cache handle)))
4341 (setq handle
4342 (mm-make-handle (mm-handle-buffer handle)
4343 (cons mime-type (cdr (mm-handle-type handle)))
4344 (mm-handle-encoding handle)
4345 (mm-handle-undisplayer handle)
4346 (mm-handle-disposition handle)
4347 (mm-handle-description handle)
4348 nil
4349 (mm-handle-id handle)))
4350 (setq gnus-article-mime-handles
4351 (mm-merge-handles gnus-article-mime-handles handle))
4352 (gnus-mm-display-part handle))))
4354 (eval-when-compile
4355 (require 'jka-compr))
4357 ;; jka-compr.el uses a "sh -c" to direct stderr to err-file, but these days
4358 ;; emacs can do that itself.
4359 ;;
4360 (defun gnus-mime-jka-compr-maybe-uncompress ()
4361 "Uncompress the current buffer if `auto-compression-mode' is enabled.
4362 The uncompress method used is derived from `buffer-file-name'."
4363 (when (and (fboundp 'jka-compr-installed-p)
4364 (jka-compr-installed-p))
4365 (let ((info (jka-compr-get-compression-info buffer-file-name)))
4366 (when info
4367 (let ((basename (file-name-nondirectory buffer-file-name))
4368 (args (jka-compr-info-uncompress-args info))
4369 (prog (jka-compr-info-uncompress-program info))
4370 (message (jka-compr-info-uncompress-message info))
4371 (err-file (jka-compr-make-temp-name)))
4372 (if message
4373 (message "%s %s..." message basename))
4374 (unwind-protect
4375 (unless (memq (apply 'call-process-region
4376 (point-min) (point-max)
4377 prog
4378 t (list t err-file) nil
4379 args)
4380 jka-compr-acceptable-retval-list)
4381 (jka-compr-error prog args basename message err-file))
4382 (jka-compr-delete-temp-file err-file)))))))
4384 (defun gnus-mime-copy-part (&optional handle)
4385 "Put the MIME part under point into a new buffer.
4386 If `auto-compression-mode' is enabled, compressed files like .gz and .bz2
4387 are decompressed."
4388 (interactive)
4389 (gnus-article-check-buffer)
4390 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4391 (contents (and handle (mm-get-part handle)))
4392 (base (and handle
4393 (file-name-nondirectory
4394 (or
4395 (mail-content-type-get (mm-handle-type handle) 'name)
4396 (mail-content-type-get (mm-handle-disposition handle)
4397 'filename)
4398 "*decoded*"))))
4399 (buffer (and base (generate-new-buffer base))))
4400 (when contents
4401 (switch-to-buffer buffer)
4402 (insert contents)
4403 ;; We do it this way to make `normal-mode' set the appropriate mode.
4404 (unwind-protect
4405 (progn
4406 (setq buffer-file-name (expand-file-name base))
4407 (gnus-mime-jka-compr-maybe-uncompress)
4408 (normal-mode))
4409 (setq buffer-file-name nil))
4410 (goto-char (point-min)))))
4412 (defun gnus-mime-print-part (&optional handle filename)
4413 "Print the MIME part under point."
4414 (interactive (list nil (ps-print-preprint current-prefix-arg)))
4415 (gnus-article-check-buffer)
4416 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4417 (contents (and handle (mm-get-part handle)))
4418 (file (mm-make-temp-file (expand-file-name "mm." mm-tmp-directory)))
4419 (printer (mailcap-mime-info (mm-handle-media-type handle) "print")))
4420 (when contents
4421 (if printer
4422 (unwind-protect
4423 (progn
4424 (mm-save-part-to-file handle file)
4425 (call-process shell-file-name nil
4426 (generate-new-buffer " *mm*")
4427 nil
4428 shell-command-switch
4429 (mm-mailcap-command
4430 printer file (mm-handle-type handle))))
4431 (delete-file file))
4432 (with-temp-buffer
4433 (insert contents)
4434 (gnus-print-buffer))
4435 (ps-despool filename)))))
4437 (defun gnus-mime-inline-part (&optional handle arg)
4438 "Insert the MIME part under point into the current buffer."
4439 (interactive (list nil current-prefix-arg))
4440 (gnus-article-check-buffer)
4441 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4442 contents charset
4443 (b (point))
4444 (inhibit-read-only t))
4445 (when handle
4446 (if (and (not arg) (mm-handle-undisplayer handle))
4447 (mm-remove-part handle)
4448 (setq contents (mm-get-part handle))
4449 (cond
4450 ((not arg)
4451 (setq charset (or (mail-content-type-get
4452 (mm-handle-type handle) 'charset)
4453 gnus-newsgroup-charset)))
4454 ((numberp arg)
4455 (if (mm-handle-undisplayer handle)
4456 (mm-remove-part handle))
4457 (setq charset
4458 (or (cdr (assq arg
4459 gnus-summary-show-article-charset-alist))
4460 (mm-read-coding-system "Charset: "))))
4461 (t
4462 (if (mm-handle-undisplayer handle)
4463 (mm-remove-part handle))))
4464 (forward-line 2)
4465 (mm-insert-inline
4466 handle
4467 (if (and charset
4468 (setq charset (mm-charset-to-coding-system
4469 charset))
4470 (not (eq charset 'ascii)))
4471 (mm-decode-coding-string contents charset)
4472 (mm-string-to-multibyte contents)))
4473 (goto-char b)))))
4475 (defun gnus-mime-view-part-as-charset (&optional handle arg)
4476 "Insert the MIME part under point into the current buffer using the
4477 specified charset."
4478 (interactive (list nil current-prefix-arg))
4479 (gnus-article-check-buffer)
4480 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4481 contents charset
4482 (b (point))
4483 (inhibit-read-only t))
4484 (when handle
4485 (if (mm-handle-undisplayer handle)
4486 (mm-remove-part handle))
4487 (let ((gnus-newsgroup-charset
4488 (or (cdr (assq arg
4489 gnus-summary-show-article-charset-alist))
4490 (mm-read-coding-system "Charset: ")))
4491 (gnus-newsgroup-ignored-charsets 'gnus-all))
4492 (gnus-article-press-button)))))
4494 (defun gnus-mime-view-part-externally (&optional handle)
4495 "View the MIME part under point with an external viewer."
4496 (interactive)
4497 (gnus-article-check-buffer)
4498 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4499 (mm-user-display-methods nil)
4500 (mm-inlined-types nil)
4501 (mail-parse-charset gnus-newsgroup-charset)
4502 (mail-parse-ignored-charsets
4503 (save-excursion (set-buffer gnus-summary-buffer)
4504 gnus-newsgroup-ignored-charsets)))
4505 (when handle
4506 (if (mm-handle-undisplayer handle)
4507 (mm-remove-part handle)
4508 (mm-display-part handle)))))
4510 (defun gnus-mime-view-part-internally (&optional handle)
4511 "View the MIME part under point with an internal viewer.
4512 If no internal viewer is available, use an external viewer."
4513 (interactive)
4514 (gnus-article-check-buffer)
4515 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4516 (mm-inlined-types '(".*"))
4517 (mm-inline-large-images t)
4518 (mail-parse-charset gnus-newsgroup-charset)
4519 (mail-parse-ignored-charsets
4520 (save-excursion (set-buffer gnus-summary-buffer)
4521 gnus-newsgroup-ignored-charsets))
4522 (inhibit-read-only t))
4523 (when handle
4524 (if (mm-handle-undisplayer handle)
4525 (mm-remove-part handle)
4526 (mm-display-part handle)))))
4528 (defun gnus-mime-action-on-part (&optional action)
4529 "Do something with the MIME attachment at \(point\)."
4530 (interactive
4531 (list (completing-read "Action: " gnus-mime-action-alist nil t)))
4532 (gnus-article-check-buffer)
4533 (let ((action-pair (assoc action gnus-mime-action-alist)))
4534 (if action-pair
4535 (funcall (cdr action-pair)))))
4537 (defun gnus-article-part-wrapper (n function)
4538 (save-current-buffer
4539 (set-buffer gnus-article-buffer)
4540 (when (> n (length gnus-article-mime-handle-alist))
4541 (error "No such part"))
4542 (gnus-article-goto-part n)
4543 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
4544 (funcall function handle))))
4546 (defun gnus-article-pipe-part (n)
4547 "Pipe MIME part N, which is the numerical prefix."
4548 (interactive "p")
4549 (gnus-article-part-wrapper n 'mm-pipe-part))
4551 (defun gnus-article-save-part (n)
4552 "Save MIME part N, which is the numerical prefix."
4553 (interactive "p")
4554 (gnus-article-part-wrapper n 'mm-save-part))
4556 (defun gnus-article-interactively-view-part (n)
4557 "View MIME part N interactively, which is the numerical prefix."
4558 (interactive "p")
4559 (gnus-article-part-wrapper n 'mm-interactively-view-part))
4561 (defun gnus-article-copy-part (n)
4562 "Copy MIME part N, which is the numerical prefix."
4563 (interactive "p")
4564 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
4566 (defun gnus-article-view-part-as-charset (n)
4567 "View MIME part N using a specified charset.
4568 N is the numerical prefix."
4569 (interactive "p")
4570 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
4572 (defun gnus-article-view-part-externally (n)
4573 "View MIME part N externally, which is the numerical prefix."
4574 (interactive "p")
4575 (gnus-article-part-wrapper n 'gnus-mime-view-part-externally))
4577 (defun gnus-article-inline-part (n)
4578 "Inline MIME part N, which is the numerical prefix."
4579 (interactive "p")
4580 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
4582 (defun gnus-article-mime-match-handle-first (condition)
4583 (if condition
4584 (let ((alist gnus-article-mime-handle-alist) ihandle n)
4585 (while (setq ihandle (pop alist))
4586 (if (and (cond
4587 ((functionp condition)
4588 (funcall condition (cdr ihandle)))
4589 ((eq condition 'undisplayed)
4590 (not (or (mm-handle-undisplayer (cdr ihandle))
4591 (equal (mm-handle-media-type (cdr ihandle))
4592 "multipart/alternative"))))
4593 ((eq condition 'undisplayed-alternative)
4594 (not (mm-handle-undisplayer (cdr ihandle))))
4595 (t t))
4596 (gnus-article-goto-part (car ihandle))
4597 (or (not n) (< (car ihandle) n)))
4598 (setq n (car ihandle))))
4599 (or n 1))
4600 1))
4602 (defun gnus-article-view-part (&optional n)
4603 "View MIME part N, which is the numerical prefix."
4604 (interactive "P")
4605 (save-current-buffer
4606 (set-buffer gnus-article-buffer)
4607 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
4608 gnus-article-mime-match-handle-function)))
4609 (when (> n (length gnus-article-mime-handle-alist))
4610 (error "No such part"))
4611 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
4612 (when (gnus-article-goto-part n)
4613 (if (equal (car handle) "multipart/alternative")
4614 (gnus-article-press-button)
4615 (when (eq (gnus-mm-display-part handle) 'internal)
4616 (gnus-set-window-start)))))))
4618 (defsubst gnus-article-mime-total-parts ()
4619 (if (bufferp (car gnus-article-mime-handles))
4620 1 ;; single part
4621 (1- (length gnus-article-mime-handles))))
4623 (defun gnus-mm-display-part (handle)
4624 "Display HANDLE and fix MIME button."
4625 (let ((id (get-text-property (point) 'gnus-part))
4626 (point (point))
4627 (inhibit-read-only t))
4628 (forward-line 1)
4629 (prog1
4630 (let ((window (selected-window))
4631 (mail-parse-charset gnus-newsgroup-charset)
4632 (mail-parse-ignored-charsets
4633 (if (gnus-buffer-live-p gnus-summary-buffer)
4634 (save-excursion
4635 (set-buffer gnus-summary-buffer)
4636 gnus-newsgroup-ignored-charsets)
4637 nil)))
4638 (save-excursion
4639 (unwind-protect
4640 (let ((win (gnus-get-buffer-window (current-buffer) t))
4641 (beg (point)))
4642 (when win
4643 (select-window win))
4644 (goto-char point)
4645 (forward-line)
4646 (if (mm-handle-displayed-p handle)
4647 ;; This will remove the part.
4648 (mm-display-part handle)
4649 (save-restriction
4650 (narrow-to-region (point)
4651 (if (eobp) (point) (1+ (point))))
4652 (mm-display-part handle)
4653 ;; We narrow to the part itself and
4654 ;; then call the treatment functions.
4655 (goto-char (point-min))
4656 (forward-line 1)
4657 (narrow-to-region (point) (point-max))
4658 (gnus-treat-article
4659 nil id
4660 (gnus-article-mime-total-parts)
4661 (mm-handle-media-type handle)))))
4662 (if (window-live-p window)
4663 (select-window window)))))
4664 (goto-char point)
4665 (gnus-delete-line)
4666 (gnus-insert-mime-button
4667 handle id (list (mm-handle-displayed-p handle)))
4668 (goto-char point))))
4670 (defun gnus-article-goto-part (n)
4671 "Go to MIME part N."
4672 (gnus-goto-char (text-property-any (point-min) (point-max) 'gnus-part n)))
4674 (defun gnus-insert-mime-button (handle gnus-tmp-id &optional displayed)
4675 (let ((gnus-tmp-name
4676 (or (mail-content-type-get (mm-handle-type handle) 'name)
4677 (mail-content-type-get (mm-handle-disposition handle) 'filename)
4678 (mail-content-type-get (mm-handle-type handle) 'url)
4679 ""))
4680 (gnus-tmp-type (mm-handle-media-type handle))
4681 (gnus-tmp-description
4682 (mail-decode-encoded-word-string (or (mm-handle-description handle)
4683 "")))
4684 (gnus-tmp-dots
4685 (if (if displayed (car displayed)
4686 (mm-handle-displayed-p handle))
4687 "" "..."))
4688 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
4689 (buffer-size)))
4690 gnus-tmp-type-long b e)
4691 (when (string-match ".*/" gnus-tmp-name)
4692 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
4693 (setq gnus-tmp-type-long (concat gnus-tmp-type
4694 (and (not (equal gnus-tmp-name ""))
4695 (concat "; " gnus-tmp-name))))
4696 (unless (equal gnus-tmp-description "")
4697 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
4698 (unless (bolp)
4700 (setq b (point))
4701 (gnus-eval-format
4702 gnus-mime-button-line-format gnus-mime-button-line-format-alist
4703 `(,@(gnus-local-map-property gnus-mime-button-map)
4704 gnus-callback gnus-mm-display-part
4705 gnus-part ,gnus-tmp-id
4706 article-type annotation
4707 gnus-data ,handle))
4708 (setq e (if (bolp)
4709 ;; Exclude a newline.
4710 (1- (point))
4711 (point)))
4712 (widget-convert-button
4713 'link b e
4714 :mime-handle handle
4715 :action 'gnus-widget-press-button
4716 :button-keymap gnus-mime-button-map
4717 :help-echo
4718 (lambda (widget/window &optional overlay pos)
4719 ;; Needed to properly clear the message due to a bug in
4720 ;; wid-edit (XEmacs only).
4721 (if (boundp 'help-echo-owns-message)
4722 (setq help-echo-owns-message t))
4723 (format
4724 "%S: %s the MIME part; %S: more options"
4725 (aref gnus-mouse-2 0)
4726 ;; XEmacs will get a single widget arg; Emacs 21 will get
4727 ;; window, overlay, position.
4728 (if (mm-handle-displayed-p
4729 (if overlay
4730 (with-current-buffer (gnus-overlay-buffer overlay)
4731 (widget-get (widget-at (gnus-overlay-start overlay))
4732 :mime-handle))
4733 (widget-get widget/window :mime-handle)))
4734 "hide" "show")
4735 (aref gnus-down-mouse-3 0))))))
4737 (defun gnus-widget-press-button (elems el)
4738 (goto-char (widget-get elems :from))
4739 (gnus-article-press-button))
4741 (defvar gnus-displaying-mime nil)
4743 (defun gnus-display-mime (&optional ihandles)
4744 "Display the MIME parts."
4745 (save-excursion
4746 (save-selected-window
4747 (let ((window (get-buffer-window gnus-article-buffer))
4748 (point (point)))
4749 (when window
4750 (select-window window)
4751 ;; We have to do this since selecting the window
4752 ;; may change the point. So we set the window point.
4753 (set-window-point window point)))
4754 (let ((handles ihandles)
4755 (inhibit-read-only t)
4756 handle)
4757 (cond (handles)
4758 ((setq handles (mm-dissect-buffer nil gnus-article-loose-mime))
4759 (when gnus-article-emulate-mime
4760 (mm-uu-dissect-text-parts handles)))
4761 (gnus-article-emulate-mime
4762 (setq handles (mm-uu-dissect))))
4763 (when (and (not ihandles)
4764 (not gnus-displaying-mime))
4765 ;; Top-level call; we clean up.
4766 (when gnus-article-mime-handles
4767 (mm-destroy-parts gnus-article-mime-handles)
4768 (setq gnus-article-mime-handle-alist nil));; A trick.
4769 (setq gnus-article-mime-handles handles)
4770 ;; We allow users to glean info from the handles.
4771 (when gnus-article-mime-part-function
4772 (gnus-mime-part-function handles)))
4773 (if (and handles
4774 (or (not (stringp (car handles)))
4775 (cdr handles)))
4776 (progn
4777 (when (and (not ihandles)
4778 (not gnus-displaying-mime))
4779 ;; Clean up for mime parts.
4780 (article-goto-body)
4781 (delete-region (point) (point-max)))
4782 (let ((gnus-displaying-mime t))
4783 (gnus-mime-display-part handles)))
4784 (save-restriction
4785 (article-goto-body)
4786 (narrow-to-region (point) (point-max))
4787 (gnus-treat-article nil 1 1)
4788 (widen)))
4789 (unless ihandles
4790 ;; Highlight the headers.
4791 (save-excursion
4792 (save-restriction
4793 (article-goto-body)
4794 (narrow-to-region (point-min) (point))
4795 (gnus-article-save-original-date
4796 (gnus-treat-article 'head)))))))))
4798 (defcustom gnus-mime-display-multipart-as-mixed nil
4801 If t, it overrides nil values of
4802 `gnus-mime-display-multipart-alternative-as-mixed' and
4803 `gnus-mime-display-multipart-related-as-mixed'."
4804 :group 'gnus-article-mime
4805 :type 'boolean)
4807 (defcustom gnus-mime-display-multipart-alternative-as-mixed nil
4809 :version "22.1"
4810 :group 'gnus-article-mime
4811 :type 'boolean)
4813 (defcustom gnus-mime-display-multipart-related-as-mixed nil
4817 `mm-discouraged-alternatives'\) images or other material inside a
4819 :version "22.1"
4820 :group 'gnus-article-mime
4821 :type 'boolean)
4823 (defun gnus-mime-display-part (handle)
4824 (cond
4825 ;; Maybe a broken MIME message.
4826 ((null handle))
4827 ;; Single part.
4828 ((not (stringp (car handle)))
4829 (gnus-mime-display-single handle))
4830 ;; User-defined multipart
4831 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
4832 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
4833 handle))
4834 ;; multipart/alternative
4835 ((and (equal (car handle) "multipart/alternative")
4836 (not (or gnus-mime-display-multipart-as-mixed
4837 gnus-mime-display-multipart-alternative-as-mixed)))
4838 (let ((id (1+ (length gnus-article-mime-handle-alist))))
4839 (push (cons id handle) gnus-article-mime-handle-alist)
4840 (gnus-mime-display-alternative (cdr handle) nil nil id)))
4841 ;; multipart/related
4842 ((and (equal (car handle) "multipart/related")
4843 (not (or gnus-mime-display-multipart-as-mixed
4844 gnus-mime-display-multipart-related-as-mixed)))
4845 ;;;!!!We should find the start part, but we just default
4846 ;;;!!!to the first part.
4847 ;;(gnus-mime-display-part (cadr handle))
4848 ;;;!!! Most multipart/related is an HTML message plus images.
4849 ;;;!!! Unfortunately we are unable to let W3 display those
4850 ;;;!!! included images, so we just display it as a mixed multipart.
4851 ;;(gnus-mime-display-mixed (cdr handle))
4852 ;;;!!! No, w3 can display everything just fine.
4853 (gnus-mime-display-part (cadr handle)))
4854 ((equal (car handle) "multipart/signed")
4855 (gnus-add-wash-type 'signed)
4856 (gnus-mime-display-security handle))
4857 ((equal (car handle) "multipart/encrypted")
4858 (gnus-add-wash-type 'encrypted)
4859 (gnus-mime-display-security handle))
4860 ;; Other multiparts are handled like multipart/mixed.
4861 (t
4862 (gnus-mime-display-mixed (cdr handle)))))
4864 (defun gnus-mime-part-function (handles)
4865 (if (stringp (car handles))
4866 (mapcar 'gnus-mime-part-function (cdr handles))
4867 (funcall gnus-article-mime-part-function handles)))
4869 (defun gnus-mime-display-mixed (handles)
4870 (mapcar 'gnus-mime-display-part handles))
4872 (defun gnus-mime-display-single (handle)
4873 (let ((type (mm-handle-media-type handle))
4874 (ignored gnus-ignored-mime-types)
4875 (not-attachment t)
4876 (move nil)
4877 display text)
4878 (catch 'ignored
4879 (progn
4880 (while ignored
4881 (when (string-match (pop ignored) type)
4882 (throw 'ignored nil)))
4883 (if (and (setq not-attachment
4884 (and (not (mm-inline-override-p handle))
4885 (or (not (mm-handle-disposition handle))
4886 (equal (car (mm-handle-disposition handle))
4887 "inline")
4888 (mm-attachment-override-p handle))))
4889 (mm-automatic-display-p handle)
4890 (or (and
4891 (mm-inlinable-p handle)
4892 (mm-inlined-p handle))
4893 (mm-automatic-external-display-p type)))
4894 (setq display t)
4895 (when (equal (mm-handle-media-supertype handle) "text")
4896 (setq text t)))
4897 (let ((id (1+ (length gnus-article-mime-handle-alist)))
4898 beg)
4899 (push (cons id handle) gnus-article-mime-handle-alist)
4900 (when (and display
4901 (equal (mm-handle-media-supertype handle) "message"))
4902 (insert-char
4904 (cond ((not (bolp)) 2)
4906 (t 1))))
4907 (when (or (not display)
4908 (not (gnus-unbuttonized-mime-type-p type)))
4909 (gnus-insert-mime-button
4910 handle id (list (or display (and not-attachment text))))
4911 (gnus-article-insert-newline)
4912 ;; Remember modify the number of forward lines.
4913 (setq move t))
4914 (setq beg (point))
4915 (cond
4916 (display
4917 (when move
4918 (forward-line -1)
4919 (setq beg (point)))
4920 (let ((mail-parse-charset gnus-newsgroup-charset)
4921 (mail-parse-ignored-charsets
4922 (save-excursion (condition-case ()
4923 (set-buffer gnus-summary-buffer)
4924 (error))
4925 gnus-newsgroup-ignored-charsets)))
4926 (mm-display-part handle t))
4927 (goto-char (point-max)))
4928 ((and text not-attachment)
4929 (when move
4930 (forward-line -1)
4931 (setq beg (point)))
4932 (gnus-article-insert-newline)
4933 (mm-insert-inline
4934 handle
4935 (let ((charset (mail-content-type-get (mm-handle-type handle)
4936 'charset)))
4937 (cond ((not charset)
4938 (mm-string-as-multibyte (mm-get-part handle)))
4939 ((eq charset 'gnus-decoded)
4940 (with-current-buffer (mm-handle-buffer handle)
4941 (buffer-string)))
4942 (t
4943 (mm-decode-string (mm-get-part handle) charset)))))
4944 (goto-char (point-max))))
4945 ;; Do highlighting.
4946 (save-excursion
4947 (save-restriction
4948 (narrow-to-region beg (point))
4949 (gnus-treat-article
4950 nil id
4951 (gnus-article-mime-total-parts)
4952 (mm-handle-media-type handle)))))))))
4954 (defun gnus-unbuttonized-mime-type-p (type)
4955 "Say whether TYPE is to be unbuttonized."
4956 (unless gnus-inhibit-mime-unbuttonizing
4957 (when (catch 'found
4958 (let ((types gnus-unbuttonized-mime-types))
4959 (while types
4960 (when (string-match (pop types) type)
4961 (throw 'found t)))))
4962 (not (catch 'found
4963 (let ((types gnus-buttonized-mime-types))
4964 (while types
4965 (when (string-match (pop types) type)
4966 (throw 'found t)))))))))
4968 (defun gnus-article-insert-newline ()
4969 "Insert a newline, but mark it as undeletable."
4970 (gnus-put-text-property
4973 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
4974 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
4975 (ihandles handles)
4976 (point (point))
4977 handle (inhibit-read-only t) from props begend not-pref)
4978 (save-window-excursion
4979 (save-restriction
4980 (when ibegend
4981 (narrow-to-region (car ibegend)
4982 (or (cdr ibegend)
4983 (progn
4984 (goto-char (car ibegend))
4985 (forward-line 2)
4986 (point))))
4987 (delete-region (point-min) (point-max))
4988 (mm-remove-parts handles))
4989 (setq begend (list (point-marker)))
4990 ;; Do the toggle.
4991 (unless (setq not-pref (cadr (member preferred ihandles)))
4992 (setq not-pref (car ihandles)))
4993 (when (or ibegend
4994 (not preferred)
4995 (not (gnus-unbuttonized-mime-type-p
4996 "multipart/alternative")))
4997 (gnus-add-text-properties
4998 (setq from (point))
4999 (progn
5000 (insert (format "%d. " id))
5001 (point))
5002 `(gnus-callback
5003 (lambda (handles)
5004 (unless ,(not ibegend)
5005 (setq gnus-article-mime-handle-alist
5006 ',gnus-article-mime-handle-alist))
5007 (gnus-mime-display-alternative
5008 ',ihandles ',not-pref ',begend ,id))
5009 ,@(gnus-local-map-property gnus-mime-button-map)
5010 ,gnus-mouse-face-prop ,gnus-article-mouse-face
5011 face ,gnus-article-button-face
5012 gnus-part ,id
5013 article-type multipart))
5014 (widget-convert-button 'link from (point)
5015 :action 'gnus-widget-press-button
5016 :button-keymap gnus-widget-button-keymap)
5017 ;; Do the handles
5018 (while (setq handle (pop handles))
5019 (gnus-add-text-properties
5020 (setq from (point))
5021 (progn
5022 (insert (format "(%c) %-18s"
5023 (if (equal handle preferred) ?* ? )
5024 (mm-handle-media-type handle)))
5025 (point))
5026 `(gnus-callback
5027 (lambda (handles)
5028 (unless ,(not ibegend)
5029 (setq gnus-article-mime-handle-alist
5030 ',gnus-article-mime-handle-alist))
5031 (gnus-mime-display-alternative
5032 ',ihandles ',handle ',begend ,id))
5033 ,@(gnus-local-map-property gnus-mime-button-map)
5034 ,gnus-mouse-face-prop ,gnus-article-mouse-face
5035 face ,gnus-article-button-face
5036 gnus-part ,id
5037 gnus-data ,handle))
5038 (widget-convert-button 'link from (point)
5039 :action 'gnus-widget-press-button
5040 :button-keymap gnus-widget-button-keymap)
5041 (insert " "))
5043 (when preferred
5044 (if (stringp (car preferred))
5045 (gnus-display-mime preferred)
5046 (let ((mail-parse-charset gnus-newsgroup-charset)
5047 (mail-parse-ignored-charsets
5048 (save-excursion (set-buffer gnus-summary-buffer)
5049 gnus-newsgroup-ignored-charsets)))
5050 (mm-display-part preferred)
5051 ;; Do highlighting.
5052 (save-excursion
5053 (save-restriction
5054 (narrow-to-region (car begend) (point-max))
5055 (gnus-treat-article
5056 nil (length gnus-article-mime-handle-alist)
5057 (gnus-article-mime-total-parts)
5058 (mm-handle-media-type handle))))))
5059 (goto-char (point-max))
5060 (setcdr begend (point-marker)))))
5061 (when ibegend
5062 (goto-char point))))
5064 (defconst gnus-article-wash-status-strings
5065 (let ((alist '((cite "c" "Possible hidden citation text"
5066 " " "All citation text visible")
5067 (headers "h" "Hidden headers"
5068 " " "All headers visible.")
5069 (pgp "p" "Encrypted or signed message status hidden"
5070 " " "No hidden encryption nor digital signature status")
5071 (signature "s" "Signature has been hidden"
5072 " " "Signature is visible")
5073 (overstrike "o" "Overstrike (^H) characters applied"
5074 " " "No overstrike characters applied")
5075 (emphasis "e" "/*_Emphasis_*/ characters applied"
5076 " " "No /*_emphasis_*/ characters applied")))
5077 result)
5078 (dolist (entry alist result)
5079 (let ((key (nth 0 entry))
5080 (on (copy-sequence (nth 1 entry)))
5081 (on-help (nth 2 entry))
5082 (off (copy-sequence (nth 3 entry)))
5083 (off-help (nth 4 entry)))
5084 (put-text-property 0 1 'help-echo on-help on)
5085 (put-text-property 0 1 'help-echo off-help off)
5086 (push (list key on off) result))))
5087 "Alist of strings describing wash status in the mode line.
5088 Each entry has the form (KEY ON OF), where the KEY is a symbol
5089 representing the particular washing function, ON is the string to use
5090 in the article mode line when the washing function is active, and OFF
5091 is the string to use when it is inactive.")
5093 (defun gnus-article-wash-status-entry (key value)
5094 (let ((entry (assoc key gnus-article-wash-status-strings)))
5095 (if value (nth 1 entry) (nth 2 entry))))
5097 (defun gnus-article-wash-status ()
5098 "Return a string which display status of article washing."
5099 (save-excursion
5100 (set-buffer gnus-article-buffer)
5101 (let ((cite (memq 'cite gnus-article-wash-types))
5102 (headers (memq 'headers gnus-article-wash-types))
5103 (boring (memq 'boring-headers gnus-article-wash-types))
5104 (pgp (memq 'pgp gnus-article-wash-types))
5105 (pem (memq 'pem gnus-article-wash-types))
5106 (signed (memq 'signed gnus-article-wash-types))
5107 (encrypted (memq 'encrypted gnus-article-wash-types))
5108 (signature (memq 'signature gnus-article-wash-types))
5109 (overstrike (memq 'overstrike gnus-article-wash-types))
5110 (emphasis (memq 'emphasis gnus-article-wash-types)))
5111 (concat
5112 (gnus-article-wash-status-entry 'cite cite)
5113 (gnus-article-wash-status-entry 'headers (or headers boring))
5114 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
5115 (gnus-article-wash-status-entry 'signature signature)
5116 (gnus-article-wash-status-entry 'overstrike overstrike)
5117 (gnus-article-wash-status-entry 'emphasis emphasis)))))
5119 (defun gnus-add-wash-type (type)
5120 "Add a washing of TYPE to the current status."
5121 (add-to-list 'gnus-article-wash-types type))
5123 (defun gnus-delete-wash-type (type)
5124 "Add a washing of TYPE to the current status."
5125 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
5127 (defun gnus-add-image (category image)
5128 "Add IMAGE of CATEGORY to the list of displayed images."
5129 (let ((entry (assq category gnus-article-image-alist)))
5130 (unless entry
5131 (setq entry (list category))
5132 (push entry gnus-article-image-alist))
5133 (nconc entry (list image))))
5135 (defun gnus-delete-images (category)
5136 "Delete all images in CATEGORY."
5137 (let ((entry (assq category gnus-article-image-alist)))
5138 (dolist (image (cdr entry))
5139 (gnus-remove-image image category))
5140 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
5141 (gnus-delete-wash-type category)))
5143 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
5145 (defun gnus-article-maybe-hide-headers ()
5146 "Hide unwanted headers if `gnus-have-all-headers' is nil.
5147 Provided for backwards compatibility."
5148 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
5149 (not (save-excursion (set-buffer gnus-summary-buffer)
5150 gnus-have-all-headers)))
5151 (not gnus-inhibit-hiding))
5152 (gnus-article-hide-headers)))
5154 ;;; Article savers.
5156 (defun gnus-output-to-file (file-name)
5157 "Append the current article to a file named FILE-NAME."
5158 (let ((artbuf (current-buffer)))
5159 (with-temp-buffer
5160 (insert-buffer-substring artbuf)
5161 ;; Append newline at end of the buffer as separator, and then
5162 ;; save it to file.
5163 (goto-char (point-max))
5165 (let ((file-name-coding-system nnmail-pathname-coding-system))
5166 (mm-append-to-file (point-min) (point-max) file-name))
5167 t)))
5169 (defun gnus-narrow-to-page (&optional arg)
5170 "Narrow the article buffer to a page.
5171 If given a numerical ARG, move forward ARG pages."
5172 (interactive "P")
5173 (setq arg (if arg (prefix-numeric-value arg) 0))
5174 (save-excursion
5175 (set-buffer gnus-article-buffer)
5176 (goto-char (point-min))
5177 (widen)
5178 ;; Remove any old next/prev buttons.
5179 (when (gnus-visual-p 'page-marker)
5180 (let ((inhibit-read-only t))
5181 (gnus-remove-text-with-property 'gnus-prev)
5182 (gnus-remove-text-with-property 'gnus-next)))
5183 (if
5184 (cond ((< arg 0)
5185 (re-search-backward page-delimiter nil 'move (1+ (abs arg))))
5186 ((> arg 0)
5187 (re-search-forward page-delimiter nil 'move arg)))
5188 (goto-char (match-end 0))
5189 (save-excursion
5190 (goto-char (point-min))
5191 (setq gnus-page-broken
5192 (and (re-search-forward page-delimiter nil t) t))))
5193 (when gnus-page-broken
5194 (narrow-to-region
5195 (point)
5196 (if (re-search-forward page-delimiter nil 'move)
5197 (match-beginning 0)
5198 (point)))
5199 (when (and (gnus-visual-p 'page-marker)
5200 (> (point-min) (save-restriction (widen) (point-min))))
5201 (save-excursion
5202 (goto-char (point-min))
5203 (gnus-insert-prev-page-button)))
5204 (when (and (gnus-visual-p 'page-marker)
5205 (< (point-max) (save-restriction (widen) (point-max))))
5206 (save-excursion
5207 (goto-char (point-max))
5208 (gnus-insert-next-page-button))))))
5210 ;; Article mode commands
5212 (defun gnus-article-goto-next-page ()
5213 "Show the next page of the article."
5214 (interactive)
5215 (when (gnus-article-next-page)
5216 (goto-char (point-min))
5217 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
5220 (defun gnus-article-goto-prev-page ()
5221 "Show the previous page of the article."
5222 (interactive)
5223 (if (bobp)
5224 (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
5225 (gnus-article-prev-page nil)))
5227 ;; This is cleaner but currently breaks `gnus-pick-mode':
5228 ;;
5229 ;; (defun gnus-article-goto-next-page ()
5230 ;; "Show the next page of the article."
5231 ;; (interactive)
5232 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
5233 ;; (gnus-summary-next-page)))
5234 ;;
5235 ;; (defun gnus-article-goto-prev-page ()
5236 ;; "Show the next page of the article."
5237 ;; (interactive)
5238 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
5239 ;; (gnus-summary-prev-page)))
5241 (defun gnus-article-next-page (&optional lines)
5242 "Show the next page of the current article.
5243 If end of article, return non-nil. Otherwise return nil.
5244 Argument LINES specifies lines to be scrolled up."
5245 (interactive "p")
5246 (move-to-window-line -1)
5247 (if (save-excursion
5248 (end-of-line)
5249 (and (pos-visible-in-window-p) ;Not continuation line.
5250 (>= (1+ (point)) (point-max)))) ;Allow for trailing newline.
5251 ;; Nothing in this page.
5252 (if (or (not gnus-page-broken)
5253 (save-excursion
5254 (save-restriction
5255 (widen)
5256 (forward-line)
5257 (eobp)))) ;Real end-of-buffer?
5258 (progn
5259 (when gnus-article-over-scroll
5260 (gnus-article-next-page-1 lines))
5261 t) ;Nothing more.
5262 (gnus-narrow-to-page 1) ;Go to next page.
5263 nil)
5264 ;; More in this page.
5265 (gnus-article-next-page-1 lines)
5266 nil))
5268 (defmacro gnus-article-beginning-of-window ()
5269 "Move point to the beginning of the window.
5270 In Emacs, the point is placed at the line number which `scroll-margin'
5271 specifies."
5272 (if (featurep 'xemacs)
5273 '(move-to-window-line 0)
5274 '(move-to-window-line
5275 (min (max 0 scroll-margin)
5276 (max 1 (- (window-height)
5277 (if mode-line-format 1 0)
5278 (if (and (boundp 'header-line-format)
5279 (symbol-value 'header-line-format))
5280 1 0)))))))
5282 (defun gnus-article-next-page-1 (lines)
5283 (when (and (not (featurep 'xemacs))
5284 (numberp lines)
5285 (> lines 0)
5286 (numberp (symbol-value 'scroll-margin))
5287 (> (symbol-value 'scroll-margin) 0))
5288 ;; Protect against the bug that Emacs 21.x hangs up when scrolling up for
5289 ;; too many number of lines if `scroll-margin' is set as two or greater.
5290 (setq lines (min lines
5291 (max 0 (- (count-lines (window-start) (point-max))
5292 (symbol-value 'scroll-margin))))))
5293 (condition-case ()
5294 (let ((scroll-in-place nil))
5295 (scroll-up lines))
5296 (end-of-buffer
5297 ;; Long lines may cause an end-of-buffer error.
5298 (goto-char (point-max))))
5299 (gnus-article-beginning-of-window))
5301 (defun gnus-article-prev-page (&optional lines)
5302 "Show previous page of current article.
5303 Argument LINES specifies lines to be scrolled down."
5304 (interactive "p")
5305 (move-to-window-line 0)
5306 (if (and gnus-page-broken
5307 (bobp)
5308 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
5309 (progn
5310 (gnus-narrow-to-page -1) ;Go to previous page.
5311 (goto-char (point-max))
5312 (recenter -1))
5313 (prog1
5314 (condition-case ()
5315 (let ((scroll-in-place nil))
5316 (scroll-down lines))
5317 (beginning-of-buffer
5318 (goto-char (point-min))))
5319 (gnus-article-beginning-of-window))))
5321 (defun gnus-article-only-boring-p ()
5322 "Decide whether there is only boring text remaining in the article.
5324 not have a face in `gnus-article-boring-faces'."
5325 (when (and gnus-article-skip-boring
5326 (boundp 'gnus-article-boring-faces)
5327 (symbol-value 'gnus-article-boring-faces))
5328 (save-excursion
5329 (let ((inhibit-point-motion-hooks t))
5330 (catch 'only-boring
5332 (forward-char -1)
5333 (when (not (gnus-intersection
5334 (gnus-faces-at (point))
5335 (symbol-value 'gnus-article-boring-faces)))
5336 (throw 'only-boring nil)))
5337 (throw 'only-boring t))))))
5339 (defun gnus-article-refer-article ()
5340 "Read article specified by message-id around point."
5341 (interactive)
5342 (save-excursion
5346 (let ((msg-id (concat "<" (match-string 0) ">")))
5347 (set-buffer gnus-summary-buffer)
5348 (gnus-summary-refer-article msg-id))
5349 (error "No references around point"))))
5351 (defun gnus-article-show-summary ()
5352 "Reconfigure windows to show summary buffer."
5353 (interactive)
5354 (if (not (gnus-buffer-live-p gnus-summary-buffer))
5355 (error "There is no summary buffer for this article buffer")
5356 (gnus-article-set-globals)
5357 (gnus-configure-windows 'article)
5358 (gnus-summary-goto-subject gnus-current-article)
5359 (gnus-summary-position-point)))
5361 (defun gnus-article-describe-briefly ()
5362 "Describe article mode commands briefly."
5363 (interactive)
5364 (gnus-message 6 (substitute-command-keys "\\<gnus-article-mode-map>\\[gnus-article-goto-next-page]:Next page \\[gnus-article-goto-prev-page]:Prev page \\[gnus-article-show-summary]:Show summary \\[gnus-info-find-node]:Run Info \\[gnus-article-describe-briefly]:This help")))
5366 (defun gnus-article-summary-command ()
5367 "Execute the last keystroke in the summary buffer."
5368 (interactive)
5369 (let ((obuf (current-buffer))
5370 (owin (current-window-configuration))
5371 func)
5372 (switch-to-buffer gnus-article-current-summary 'norecord)
5373 (setq func (lookup-key (current-local-map) (this-command-keys)))
5374 (call-interactively func)
5375 (set-buffer obuf)
5376 (set-window-configuration owin)
5377 (set-window-point (get-buffer-window (current-buffer)) (point))))
5379 (defun gnus-article-summary-command-nosave ()
5380 "Execute the last keystroke in the summary buffer."
5381 (interactive)
5382 (let (func)
5383 (pop-to-buffer gnus-article-current-summary 'norecord)
5384 (setq func (lookup-key (current-local-map) (this-command-keys)))
5385 (call-interactively func)))
5387 (defun gnus-article-check-buffer ()
5388 "Beep if not in an article buffer."
5389 (unless (equal major-mode 'gnus-article-mode)
5390 (error "Command invoked outside of a Gnus article buffer")))
5392 (defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
5393 "Read a summary buffer key sequence and execute it from the article buffer."
5394 (interactive "P")
5395 (gnus-article-check-buffer)
5396 (let ((nosaves
5397 '("q" "Q" "c" "r" "\C-c\C-f" "m" "a" "f"
5398 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
5399 "=" "^" "\M-^" "|"))
5400 (nosave-but-article
5402 (nosave-in-article
5403 '("\C-d"))
5404 (up-to-top
5405 '("n" "Gn" "p" "Gp"))
5406 keys new-sum-point)
5407 (save-excursion
5408 (set-buffer gnus-article-current-summary)
5409 (let (gnus-pick-mode)
5410 (push (or key last-command-event) unread-command-events)
5411 (setq keys (if (featurep 'xemacs)
5412 (events-to-keys (read-key-sequence nil))
5413 (read-key-sequence nil)))))
5415 (message "")
5417 (if (or (member keys nosaves)
5418 (member keys nosave-but-article)
5419 (member keys nosave-in-article))
5420 (let (func)
5421 (save-window-excursion
5422 (pop-to-buffer gnus-article-current-summary 'norecord)
5423 ;; We disable the pick minor mode commands.
5424 (let (gnus-pick-mode)
5425 (setq func (lookup-key (current-local-map) keys))))
5426 (if (or (not func)
5427 (numberp func))
5428 (ding)
5429 (unless (member keys nosave-in-article)
5430 (set-buffer gnus-article-current-summary))
5431 (call-interactively func)
5432 (setq new-sum-point (point)))
5433 (when (member keys nosave-but-article)
5434 (pop-to-buffer gnus-article-buffer 'norecord)))
5435 ;; These commands should restore window configuration.
5436 (let ((obuf (current-buffer))
5437 (owin (current-window-configuration))
5438 (opoint (point))
5439 win func in-buffer selected new-sum-start new-sum-hscroll)
5440 (cond (not-restore-window
5441 (pop-to-buffer gnus-article-current-summary 'norecord))
5442 ((setq win (get-buffer-window gnus-article-current-summary))
5443 (select-window win))
5444 (t
5445 (switch-to-buffer gnus-article-current-summary 'norecord)))
5446 (setq in-buffer (current-buffer))
5447 ;; We disable the pick minor mode commands.
5448 (if (and (setq func (let (gnus-pick-mode)
5449 (lookup-key (current-local-map) keys)))
5450 (functionp func))
5451 (progn
5452 (call-interactively func)
5453 (when (eq win (selected-window))
5454 (setq new-sum-point (point)
5455 new-sum-start (window-start win)
5456 new-sum-hscroll (window-hscroll win)))
5457 (when (eq in-buffer (current-buffer))
5458 (setq selected (gnus-summary-select-article))
5459 (set-buffer obuf)
5460 (unless not-restore-window
5461 (set-window-configuration owin))
5462 (when (eq selected 'old)
5463 (article-goto-body)
5464 (set-window-start (get-buffer-window (current-buffer))
5465 1)
5466 (set-window-point (get-buffer-window (current-buffer))
5467 (point)))
5468 (when (and (not not-restore-window)
5469 new-sum-point)
5470 (set-window-point win new-sum-point)
5471 (set-window-start win new-sum-start)
5472 (set-window-hscroll win new-sum-hscroll))))
5473 (set-window-configuration owin)
5474 (ding))))))
5476 (defun gnus-article-describe-key (key)
5477 "Display documentation of the function invoked by KEY. KEY is a string."
5478 (interactive "kDescribe key: ")
5479 (gnus-article-check-buffer)
5480 (if (eq (key-binding key) 'gnus-article-read-summary-keys)
5481 (save-excursion
5482 (set-buffer gnus-article-current-summary)
5483 (let (gnus-pick-mode)
5484 (if (featurep 'xemacs)
5485 (progn
5486 (push (elt key 0) unread-command-events)
5487 (setq key (events-to-keys
5488 (read-key-sequence "Describe key: "))))
5489 (setq unread-command-events
5490 (mapcar
5491 (lambda (x) (if (>= x 128) (list 'meta (- x 128)) x))
5492 (string-to-list key)))
5493 (setq key (read-key-sequence "Describe key: "))))
5494 (describe-key key))
5495 (describe-key key)))
5497 (defun gnus-article-describe-key-briefly (key &optional insert)
5498 "Display documentation of the function invoked by KEY. KEY is a string."
5500 (gnus-article-check-buffer)
5501 (if (eq (key-binding key) 'gnus-article-read-summary-keys)
5502 (save-excursion
5503 (set-buffer gnus-article-current-summary)
5504 (let (gnus-pick-mode)
5505 (if (featurep 'xemacs)
5506 (progn
5507 (push (elt key 0) unread-command-events)
5508 (setq key (events-to-keys
5509 (read-key-sequence "Describe key: "))))
5510 (setq unread-command-events
5511 (mapcar
5512 (lambda (x) (if (>= x 128) (list 'meta (- x 128)) x))
5513 (string-to-list key)))
5514 (setq key (read-key-sequence "Describe key: "))))
5515 (describe-key-briefly key insert))
5516 (describe-key-briefly key insert)))
5518 (defun gnus-article-reply-with-original (&optional wide)
5519 "Start composing a reply mail to the current message.
5520 The text in the region will be yanked. If the region isn't active,
5521 the entire article will be yanked."
5522 (interactive "P")
5523 (let ((article (cdr gnus-article-current))
5524 contents)
5525 (if (not (gnus-mark-active-p))
5526 (with-current-buffer gnus-summary-buffer
5527 (gnus-summary-reply (list (list article)) wide))
5528 (setq contents (buffer-substring (point) (mark t)))
5529 ;; Deactivate active regions.
5530 (when (and (boundp 'transient-mark-mode)
5531 transient-mark-mode)
5532 (setq mark-active nil))
5533 (with-current-buffer gnus-summary-buffer
5534 (gnus-summary-reply
5535 (list (list article contents)) wide)))))
5537 (defun gnus-article-followup-with-original ()
5538 "Compose a followup to the current article.
5539 The text in the region will be yanked. If the region isn't active,
5540 the entire article will be yanked."
5541 (interactive)
5542 (let ((article (cdr gnus-article-current))
5543 contents)
5544 (if (not (gnus-mark-active-p))
5545 (with-current-buffer gnus-summary-buffer
5546 (gnus-summary-followup (list (list article))))
5547 (setq contents (buffer-substring (point) (mark t)))
5548 ;; Deactivate active regions.
5549 (when (and (boundp 'transient-mark-mode)
5550 transient-mark-mode)
5551 (setq mark-active nil))
5552 (with-current-buffer gnus-summary-buffer
5553 (gnus-summary-followup
5554 (list (list article contents)))))))
5556 (defun gnus-article-hide (&optional arg force)
5557 "Hide all the gruft in the current article.
5558 This means that signatures, cited text and (some) headers will be
5559 hidden.
5560 If given a prefix, show the hidden text instead."
5561 (interactive (append (gnus-article-hidden-arg) (list 'force)))
5562 (gnus-article-hide-headers arg)
5563 (gnus-article-hide-list-identifiers arg)
5564 (gnus-article-hide-citation-maybe arg force)
5565 (gnus-article-hide-signature arg))
5567 (defun gnus-article-maybe-highlight ()
5568 "Do some article highlighting if article highlighting is requested."
5569 (when (gnus-visual-p 'article-highlight 'highlight)
5570 (gnus-article-highlight-some)))
5572 (defun gnus-check-group-server ()
5573 ;; Make sure the connection to the server is alive.
5574 (unless (gnus-server-opened
5575 (gnus-find-method-for-group gnus-newsgroup-name))
5576 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
5577 (gnus-request-group gnus-newsgroup-name t)))
5579 (eval-when-compile
5580 (autoload 'nneething-get-file-name "nneething"))
5582 (defun gnus-request-article-this-buffer (article group)
5583 "Get an article and insert it into this buffer."
5584 (let (do-update-line sparse-header)
5585 (prog1
5586 (save-excursion
5587 (erase-buffer)
5588 (gnus-kill-all-overlays)
5589 (setq group (or group gnus-newsgroup-name))
5591 ;; Using `gnus-request-article' directly will insert the article into
5592 ;; `nntp-server-buffer' - so we'll save some time by not having to
5593 ;; copy it from the server buffer into the article buffer.
5595 ;; We only request an article by message-id when we do not have the
5596 ;; headers for it, so we'll have to get those.
5597 (when (stringp article)
5598 (gnus-read-header article))
5600 ;; If the article number is negative, that means that this article
5601 ;; doesn't belong in this newsgroup (possibly), so we find its
5602 ;; message-id and request it by id instead of number.
5603 (when (and (numberp article)
5604 gnus-summary-buffer
5605 (get-buffer gnus-summary-buffer)
5606 (gnus-buffer-exists-p gnus-summary-buffer))
5607 (save-excursion
5608 (set-buffer gnus-summary-buffer)
5609 (let ((header (gnus-summary-article-header article)))
5610 (when (< article 0)
5611 (cond
5612 ((memq article gnus-newsgroup-sparse)
5613 ;; This is a sparse gap article.
5614 (setq do-update-line article)
5615 (setq article (mail-header-id header))
5616 (setq sparse-header (gnus-read-header article))
5617 (setq gnus-newsgroup-sparse
5618 (delq article gnus-newsgroup-sparse)))
5619 ((vectorp header)
5620 ;; It's a real article.
5621 (setq article (mail-header-id header)))
5622 (t
5623 ;; It is an extracted pseudo-article.
5624 (setq article 'pseudo)
5625 (gnus-request-pseudo-article header))))
5627 (let ((method (gnus-find-method-for-group
5628 gnus-newsgroup-name)))
5629 (when (and (eq (car method) 'nneething)
5630 (vectorp header))
5631 (let ((dir (nneething-get-file-name
5632 (mail-header-id header))))
5633 (when (and (stringp dir)
5634 (file-directory-p dir))
5635 (setq article 'nneething)
5636 (gnus-group-enter-directory dir))))))))
5638 (cond
5639 ;; Refuse to select canceled articles.
5640 ((and (numberp article)
5641 gnus-summary-buffer
5642 (get-buffer gnus-summary-buffer)
5643 (gnus-buffer-exists-p gnus-summary-buffer)
5644 (eq (cdr (save-excursion
5645 (set-buffer gnus-summary-buffer)
5646 (assq article gnus-newsgroup-reads)))
5647 gnus-canceled-mark))
5648 nil)
5649 ;; We first check `gnus-original-article-buffer'.
5650 ((and (get-buffer gnus-original-article-buffer)
5651 (numberp article)
5652 (save-excursion
5653 (set-buffer gnus-original-article-buffer)
5654 (and (equal (car gnus-original-article) group)
5655 (eq (cdr gnus-original-article) article))))
5656 (insert-buffer-substring gnus-original-article-buffer)
5657 'article)
5658 ;; Check the backlog.
5659 ((and gnus-keep-backlog
5660 (gnus-backlog-request-article group article (current-buffer)))
5661 'article)
5662 ;; Check asynchronous pre-fetch.
5663 ((gnus-async-request-fetched-article group article (current-buffer))
5664 (gnus-async-prefetch-next group article gnus-summary-buffer)
5665 (when (and (numberp article) gnus-keep-backlog)
5666 (gnus-backlog-enter-article group article (current-buffer)))
5667 'article)
5668 ;; Check the cache.
5669 ((and gnus-use-cache
5670 (numberp article)
5671 (gnus-cache-request-article article group))
5672 'article)
5673 ;; Check the agent cache.
5674 ((gnus-agent-request-article article group)
5675 'article)
5676 ;; Get the article and put into the article buffer.
5677 ((or (stringp article)
5678 (numberp article))
5679 (let ((gnus-override-method gnus-override-method)
5680 (methods (and (stringp article)
5681 gnus-refer-article-method))
5682 (backend (car (gnus-find-method-for-group
5683 gnus-newsgroup-name)))
5684 result
5685 (inhibit-read-only t))
5686 (if (or (not (listp methods))
5687 (and (symbolp (car methods))
5688 (assq (car methods) nnoo-definition-alist)))
5689 (setq methods (list methods)))
5690 (when (and (null gnus-override-method)
5691 methods)
5692 (setq gnus-override-method (pop methods)))
5693 (while (not result)
5694 (when (eq gnus-override-method 'current)
5695 (setq gnus-override-method
5696 (with-current-buffer gnus-summary-buffer
5697 gnus-current-select-method)))
5698 (erase-buffer)
5699 (gnus-kill-all-overlays)
5700 (let ((gnus-newsgroup-name group))
5701 (gnus-check-group-server))
5702 (cond
5703 ((gnus-request-article article group (current-buffer))
5704 (when (numberp article)
5705 (gnus-async-prefetch-next group article
5706 gnus-summary-buffer)
5707 (when gnus-keep-backlog
5708 (gnus-backlog-enter-article
5709 group article (current-buffer))))
5710 (setq result 'article))
5711 (methods
5712 (setq gnus-override-method (pop methods)))
5713 ((not (string-match "^400 "
5714 (nnheader-get-report backend)))
5715 ;; If we get 400 server disconnect, reconnect and
5716 ;; retry; otherwise, assume the article has expired.
5717 (setq result 'done))))
5718 (and (eq result 'article) 'article)))
5719 ;; It was a pseudo.
5720 (t article)))
5722 ;; Associate this article with the current summary buffer.
5723 (setq gnus-article-current-summary gnus-summary-buffer)
5725 ;; Take the article from the original article buffer
5726 ;; and place it in the buffer it's supposed to be in.
5727 (when (and (get-buffer gnus-article-buffer)
5728 (equal (buffer-name (current-buffer))
5729 (buffer-name (get-buffer gnus-article-buffer))))
5730 (save-excursion
5731 (if (get-buffer gnus-original-article-buffer)
5732 (set-buffer gnus-original-article-buffer)
5733 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
5734 (buffer-disable-undo)
5735 (setq major-mode 'gnus-original-article-mode)
5736 (setq buffer-read-only t))
5737 (let ((inhibit-read-only t))
5738 (erase-buffer)
5739 (insert-buffer-substring gnus-article-buffer))
5740 (setq gnus-original-article (cons group article)))
5742 ;; Decode charsets.
5743 (run-hooks 'gnus-article-decode-hook)
5744 ;; Mark article as decoded or not.
5745 (setq gnus-article-decoded-p gnus-article-decode-hook))
5747 ;; Update sparse articles.
5748 (when (and do-update-line
5749 (or (numberp article)
5750 (stringp article)))
5751 (let ((buf (current-buffer)))
5752 (set-buffer gnus-summary-buffer)
5753 (gnus-summary-update-article do-update-line sparse-header)
5754 (gnus-summary-goto-subject do-update-line nil t)
5755 (set-window-point (gnus-get-buffer-window (current-buffer) t)
5756 (point))
5757 (set-buffer buf))))))
5759 ;;;
5760 ;;; Article editing
5761 ;;;
5763 (defcustom gnus-article-edit-mode-hook nil
5764 "Hook run in article edit mode buffers."
5765 :group 'gnus-article-various
5766 :type 'hook)
5768 (defvar gnus-article-edit-done-function nil)
5770 (defvar gnus-article-edit-mode-map nil)
5771 (defvar gnus-article-edit-mode nil)
5773 ;; Should we be using derived.el for this?
5774 (unless gnus-article-edit-mode-map
5775 (setq gnus-article-edit-mode-map (make-keymap))
5776 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
5778 (gnus-define-keys gnus-article-edit-mode-map
5779 "\C-c?" describe-mode
5780 "\C-c\C-c" gnus-article-edit-done
5781 "\C-c\C-k" gnus-article-edit-exit
5782 "\C-c\C-f\C-t" message-goto-to
5783 "\C-c\C-f\C-o" message-goto-from
5784 "\C-c\C-f\C-b" message-goto-bcc
5785 ;;"\C-c\C-f\C-w" message-goto-fcc
5786 "\C-c\C-f\C-c" message-goto-cc
5787 "\C-c\C-f\C-s" message-goto-subject
5788 "\C-c\C-f\C-r" message-goto-reply-to
5789 "\C-c\C-f\C-n" message-goto-newsgroups
5790 "\C-c\C-f\C-d" message-goto-distribution
5791 "\C-c\C-f\C-f" message-goto-followup-to
5792 "\C-c\C-f\C-m" message-goto-mail-followup-to
5793 "\C-c\C-f\C-k" message-goto-keywords
5794 "\C-c\C-f\C-u" message-goto-summary
5795 "\C-c\C-f\C-i" message-insert-or-toggle-importance
5796 "\C-c\C-f\C-a" message-generate-unsubscribed-mail-followup-to
5797 "\C-c\C-b" message-goto-body
5798 "\C-c\C-i" message-goto-signature
5800 "\C-c\C-t" message-insert-to
5801 "\C-c\C-n" message-insert-newsgroups
5802 "\C-c\C-o" message-sort-headers
5803 "\C-c\C-e" message-elide-region
5804 "\C-c\C-v" message-delete-not-region
5805 "\C-c\C-z" message-kill-to-signature
5807 "\C-c\C-a" mml-attach-file
5808 "\C-a" message-beginning-of-line
5810 "\M-;" comment-region)
5812 (gnus-define-keys (gnus-article-edit-wash-map
5813 "\C-c\C-w" gnus-article-edit-mode-map)
5814 "f" gnus-article-edit-full-stops))
5816 (easy-menu-define
5817 gnus-article-edit-mode-field-menu gnus-article-edit-mode-map ""
5818 '("Field"
5819 ["Fetch To" message-insert-to t]
5820 ["Fetch Newsgroups" message-insert-newsgroups t]
5821 "----"
5822 ["To" message-goto-to t]
5823 ["From" message-goto-from t]
5824 ["Subject" message-goto-subject t]
5825 ["Cc" message-goto-cc t]
5826 ["Reply-To" message-goto-reply-to t]
5827 ["Summary" message-goto-summary t]
5828 ["Keywords" message-goto-keywords t]
5829 ["Newsgroups" message-goto-newsgroups t]
5830 ["Followup-To" message-goto-followup-to t]
5831 ["Mail-Followup-To" message-goto-mail-followup-to t]
5832 ["Distribution" message-goto-distribution t]
5833 ["Body" message-goto-body t]
5834 ["Signature" message-goto-signature t]))
5836 (define-derived-mode gnus-article-edit-mode message-mode "Article Edit"
5837 "Major mode for editing articles.
5838 This is an extended text-mode.
5841 (make-local-variable 'gnus-article-edit-done-function)
5842 (make-local-variable 'gnus-prev-winconf)
5843 (set (make-local-variable 'font-lock-defaults)
5844 '(message-font-lock-keywords t))
5845 (set (make-local-variable 'mail-header-separator) "")
5846 (set (make-local-variable 'gnus-article-edit-mode) t)
5847 (easy-menu-add message-mode-field-menu message-mode-map)
5848 (mml-mode)
5849 (setq buffer-read-only nil)
5850 (buffer-enable-undo)
5851 (widen))
5853 (defun gnus-article-edit (&optional force)
5854 "Edit the current article.
5855 This will have permanent effect only in mail groups.
5856 If FORCE is non-nil, allow editing of articles even in read-only
5857 groups."
5858 (interactive "P")
5859 (when (and (not force)
5860 (gnus-group-read-only-p))
5861 (error "The current newsgroup does not support article editing"))
5862 (gnus-article-date-original)
5863 (gnus-article-edit-article
5864 'ignore
5865 `(lambda (no-highlight)
5866 'ignore
5867 (gnus-summary-edit-article-done
5868 ,(or (mail-header-references gnus-current-headers) "")
5869 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
5871 (defun gnus-article-edit-article (start-func exit-func)
5872 "Start editing the contents of the current article buffer."
5873 (let ((winconf (current-window-configuration)))
5874 (set-buffer gnus-article-buffer)
5875 (let ((message-auto-save-directory
5876 ;; Don't associate the article buffer with a draft file.
5877 nil))
5878 (gnus-article-edit-mode))
5879 (funcall start-func)
5880 (set-buffer-modified-p nil)
5881 (gnus-configure-windows 'edit-article)
5882 (setq gnus-article-edit-done-function exit-func)
5883 (setq gnus-prev-winconf winconf)
5884 (gnus-message 6 "C-c C-c to end edits")))
5886 (defun gnus-article-edit-done (&optional arg)
5887 "Update the article edits and exit."
5888 (interactive "P")
5889 (let ((func gnus-article-edit-done-function)
5890 (buf (current-buffer))
5891 (start (window-start))
5892 (p (point))
5893 (winconf gnus-prev-winconf))
5894 (widen) ;; Widen it in case that users narrowed the buffer.
5895 (funcall func arg)
5896 (set-buffer buf)
5897 ;; The cache and backlog have to be flushed somewhat.
5898 (when gnus-keep-backlog
5899 (gnus-backlog-remove-article
5900 (car gnus-article-current) (cdr gnus-article-current)))
5901 ;; Flush original article as well.
5902 (save-excursion
5903 (when (get-buffer gnus-original-article-buffer)
5904 (set-buffer gnus-original-article-buffer)
5905 (setq gnus-original-article nil)))
5906 (when gnus-use-cache
5907 (gnus-cache-update-article
5908 (car gnus-article-current) (cdr gnus-article-current)))
5909 ;; We remove all text props from the article buffer.
5910 (kill-all-local-variables)
5911 (gnus-set-text-properties (point-min) (point-max) nil)
5912 (gnus-article-mode)
5913 (set-window-configuration winconf)
5914 (set-buffer buf)
5915 (set-window-start (get-buffer-window buf) start)
5916 (set-window-point (get-buffer-window buf) (point)))
5917 (gnus-summary-show-article))
5919 (defun gnus-article-edit-exit ()
5920 "Exit the article editing without updating."
5921 (interactive)
5922 (when (or (not (buffer-modified-p))
5923 (yes-or-no-p "Article modified; kill anyway? "))
5924 (let ((curbuf (current-buffer))
5925 (p (point))
5926 (window-start (window-start)))
5927 (erase-buffer)
5928 (if (gnus-buffer-live-p gnus-original-article-buffer)
5929 (insert-buffer-substring gnus-original-article-buffer))
5930 (let ((winconf gnus-prev-winconf))
5931 (kill-all-local-variables)
5932 (gnus-article-mode)
5933 (set-window-configuration winconf)
5934 ;; Tippy-toe some to make sure that point remains where it was.
5935 (save-current-buffer
5936 (set-buffer curbuf)
5937 (set-window-start (get-buffer-window (current-buffer)) window-start)
5938 (goto-char p))))
5939 (gnus-summary-show-article)))
5941 (defun gnus-article-edit-full-stops ()
5942 "Interactively repair spacing at end of sentences."
5943 (interactive)
5944 (save-excursion
5945 (goto-char (point-min))
5946 (search-forward-regexp "^$" nil t)
5947 (let ((case-fold-search nil))
5950 ;;;
5951 ;;; Article highlights
5952 ;;;
5954 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
5956 ;;; Internal Variables:
5958 (defcustom gnus-button-url-regexp
5959 (if (string-match "[[:digit:]]" "1") ;; support POSIX?
5960 "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|nntp\\|news\\|telnet\\|wais\\|mailto\\|info\\):\\)\\(//[-a-z0-9_.]+:[0-9]*\\)?[-a-z0-9_=!?#$@~%&*+\\/:;.,[:word:]]+[-a-z0-9_=#$@~%&*+\\/[:word:]]\\)"
5961 "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|nntp\\|news\\|telnet\\|wais\\|mailto\\|info\\):\\)\\(//[-a-z0-9_.]+:[0-9]*\\)?\\([-a-z0-9_=!?#$@~%&*+\\/:;.,]\\|\\w\\)+\\([-a-z0-9_=#$@~%&*+\\/]\\|\\w\\)\\)")
5962 "Regular expression that matches URLs."
5963 :group 'gnus-article-buttons
5964 :type 'regexp)
5966 (defcustom gnus-button-valid-fqdn-regexp
5967 message-valid-fqdn-regexp
5968 "Regular expression that matches a valid FQDN."
5969 :version "22.1"
5970 :group 'gnus-article-buttons
5971 :type 'regexp)
5973 ;; Regexp suggested by Felix Wiemann in <87oeuomcz9.fsf@news2.ososo.de>
5974 (defcustom gnus-button-valid-localpart-regexp
5976 "Regular expression that matches a localpart of mail addresses or MIDs."
5977 :version "22.1"
5978 :group 'gnus-article-buttons
5979 :type 'regexp)
5981 (defcustom gnus-button-man-handler 'manual-entry
5982 "Function to use for displaying man pages.
5983 The function must take at least one argument with a string naming the
5984 man page."
5985 :version "22.1"
5986 :type '(choice (function-item :tag "Man" manual-entry)
5987 (function-item :tag "Woman" woman)
5988 (function :tag "Other"))
5989 :group 'gnus-article-buttons)
5991 (defcustom gnus-ctan-url "http://tug.ctan.org/tex-archive/"
5992 "Top directory of a CTAN \(Comprehensive TeX Archive Network\) archive.
5993 If the default site is too slow, try to find a CTAN mirror, see
5994 <URL:http://tug.ctan.org/tex-archive/CTAN.sites?action=/index.html>. See also
5995 the variable `gnus-button-handle-ctan'."
5996 :version "22.1"
5997 :group 'gnus-article-buttons
5998 :link '(custom-manual "(gnus)Group Parameters")
5999 :type '(choice (const "http://www.tex.ac.uk/tex-archive/")
6000 (const "http://tug.ctan.org/tex-archive/")
6001 (const "http://www.dante.de/CTAN/")
6002 (string :tag "Other")))
6004 (defcustom gnus-button-ctan-handler 'browse-url
6005 "Function to use for displaying CTAN links.
6006 The function must take one argument, the string naming the URL."
6007 :version "22.1"
6008 :type '(choice (function-item :tag "Browse Url" browse-url)
6009 (function :tag "Other"))
6010 :group 'gnus-article-buttons)
6013 "Bogus strings removed from CTAN URLs."
6014 :version "22.1"
6015 :group 'gnus-article-buttons
6017 (regexp :tag "Other")))
6019 (defcustom gnus-button-ctan-directory-regexp
6020 (regexp-opt
6021 (list "archive-tools" "biblio" "bibliography" "digests" "documentation"
6022 "dviware" "fonts" "graphics" "help" "indexing" "info" "language"
6023 "languages" "macros" "nonfree" "obsolete" "support" "systems"
6024 "tds" "tools" "usergrps" "web") t)
6025 "Regular expression for ctan directories.
6026 It should match all directories in the top level of `gnus-ctan-url'."
6027 :version "22.1"
6028 :group 'gnus-article-buttons
6029 :type 'regexp)
6031 (defcustom gnus-button-mid-or-mail-regexp
6033 gnus-button-valid-fqdn-regexp
6035 "Regular expression that matches a message ID or a mail address."
6036 :version "22.1"
6037 :group 'gnus-article-buttons
6038 :type 'regexp)
6040 (defcustom gnus-button-prefer-mid-or-mail 'gnus-button-mid-or-mail-heuristic
6042 Strings like this can be either a message ID or a mail address. If it is one
6043 of the symbols `mid' or `mail', Gnus will always assume that the string is a
6044 message ID or a mail address, respectively. If this variable is set to the
6045 symbol `ask', always query the user what do do. If it is a function, this
6046 function will be called with the string as it's only argument. The function
6047 must return `mid', `mail', `invalid' or `ask'."
6048 :version "22.1"
6049 :group 'gnus-article-buttons
6050 :type '(choice (function-item :tag "Heuristic function"
6051 gnus-button-mid-or-mail-heuristic)
6052 (const ask)
6053 (const mid)
6054 (const mail)))
6056 (defcustom gnus-button-mid-or-mail-heuristic-alist
6058 (-10.0 . "#")
6061 (-5.0 . "@[Nn][Ee][Ww][Ss]") ;; /\@news/i
6062 (-5.0 . "@.*[Dd][Ii][Aa][Ll][Uu][Pp]") ;; /\@.*dialup/i;
6063 (-1.0 . "^[^a-z]+@")
6064 ;;
6066 (-5.0 . "[a-z].*[A-Z].*[a-z].*[A-Z].*@") ;; "([a-z].*[A-Z].*){2,}\@"
6067 (-3.0 . "[A-Z][A-Z][a-z][a-z].*@")
6069 ;;
6070 (-2.0 . "^[0-9]")
6071 (-1.0 . "^[0-9][0-9]")
6072 ;;
6073 ;; -3.0 /^[0-9][0-9a-fA-F]{2,2}/;
6074 (-3.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
6075 ;; -5.0 /^[0-9][0-9a-fA-F]{3,3}/;
6076 (-5.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
6077 ;;
6078 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][^0-9].*@") ;; "[0-9]{5,}.*\@"
6079 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][^0-9].*@")
6080 ;; "[0-9]{8,}.*\@"
6081 (-3.0
6082 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].*@")
6083 ;; "[0-9]{12,}.*\@"
6084 ;; compensation for TDMA dated mail addresses:
6085 (25.0 . "-dated-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]+.*@")
6086 ;;
6088 (-20.0 . "^slrn")
6089 (-20.0 . "^Pine")
6090 (-20.0 . "_-_") ;; Subject change in thread
6091 ;;
6095 ;;
6096 ;; (5.0 . "") ;; $local_part_len <= 7
6097 (10.0 . "^[^0-9]+@")
6098 (3.0 . "^[^0-9]+[0-9][0-9]?[0-9]?@")
6099 ;; ^[^0-9]+[0-9]{1,3}\@ digits only at end of local part
6100 (3.0 . "\@stud")
6101 ;;
6102 (2.0 . "[a-z][a-z][._-][A-Z][a-z].*@")
6103 ;;
6104 (0.5 . "^[A-Z][a-z]")
6105 (0.5 . "^[A-Z][a-z][a-z]")
6106 (1.5 . "^[A-Z][a-z][A-Z][a-z][^a-z]") ;; ^[A-Z][a-z]{3,3}
6107 (2.0 . "^[A-Z][a-z][A-Z][a-z][a-z][^a-z]")) ;; ^[A-Z][a-z]{4,4}
6108 "An alist of \(RATE . REGEXP\) pairs for `gnus-button-mid-or-mail-heuristic'.
6110 A negative RATE indicates a message IDs, whereas a positive indicates a mail
6111 address. The REGEXP is processed with `case-fold-search' set to nil."
6112 :version "22.1"
6113 :group 'gnus-article-buttons
6114 :type '(repeat (cons (number :tag "Rate")
6115 (regexp :tag "Regexp"))))
6117 (defun gnus-button-mid-or-mail-heuristic (mid-or-mail)
6118 "Guess whether MID-OR-MAIL is a message ID or a mail address.
6119 Returns `mid' if MID-OR-MAIL is a message IDs, `mail' if it's a mail
6120 address, `ask' if unsure and `invalid' if the string is invalid."
6121 (let ((case-fold-search nil)
6122 (list gnus-button-mid-or-mail-heuristic-alist)
6123 (result 0) rate regexp lpartlen elem)
6124 (setq lpartlen
6126 (gnus-message 8 "`%s', length of local part=`%s'." mid-or-mail lpartlen)
6127 ;; Certain special cases...
6128 (when (string-match
6129 (concat
6133 mid-or-mail)
6134 (gnus-message 8 "`%s' is a known mail address." mid-or-mail)
6135 (setq result 'mail))
6137 (gnus-message 8 "`%s' is invalid." mid-or-mail)
6138 (setq result 'invalid))
6139 ;; Nothing more to do, if result is not a number here...
6140 (when (numberp result)
6141 (while list
6142 (setq elem (car list)
6143 rate (car elem)
6144 regexp (cdr elem)
6145 list (cdr list))
6146 (when (string-match regexp mid-or-mail)
6147 (setq result (+ result rate))
6148 (gnus-message
6149 9 "`%s' matched `%s', rate `%s', result `%s'."
6150 mid-or-mail regexp rate result)))
6151 (when (<= lpartlen 7)
6152 (setq result (+ result 5.0))
6153 (gnus-message 9 "`%s' matched (<= lpartlen 7), result `%s'."
6154 mid-or-mail result))
6155 (when (>= lpartlen 12)
6156 (gnus-message 9 "`%s' matched (>= lpartlen 12)" mid-or-mail)
6157 (cond
6158 ((string-match "[0-9][^0-9]+[0-9].*@" mid-or-mail)
6159 ;; Long local part should contain realname if e-mail address,
6160 ;; too many digits: message-id.
6161 ;; $score -= 5.0 + 0.1 * $local_part_len;
6162 (setq rate (* -1.0 (+ 5.0 (* 0.1 lpartlen))))
6163 (setq result (+ result rate))
6164 (gnus-message
6165 9 "Many digits in `%s', rate `%s', result `%s'."
6166 mid-or-mail rate result))
6167 ((string-match "[^aeiouy][^aeiouy][^aeiouy][^aeiouy]+.*\@"
6168 mid-or-mail)
6169 ;; Too few vowels [^aeiouy]{4,}.*\@
6170 (setq result (+ result -5.0))
6171 (gnus-message
6172 9 "Few vowels in `%s', rate `%s', result `%s'."
6173 mid-or-mail -5.0 result))
6174 (t
6175 (setq result (+ result 5.0))
6176 (gnus-message
6177 9 "`%s', rate `%s', result `%s'." mid-or-mail 5.0 result)))))
6178 (gnus-message 8 "`%s': Final rate is `%s'." mid-or-mail result)
6179 ;; Maybe we should make this a customizable alist: (condition . 'result)
6180 (cond
6181 ((symbolp result) result)
6182 ;; Now convert number into proper results:
6183 ((< result -10.0) 'mid)
6184 ((> result 10.0) 'mail)
6185 (t 'ask))))
6187 (defun gnus-button-handle-mid-or-mail (mid-or-mail)
6188 (let* ((pref gnus-button-prefer-mid-or-mail) guessed
6189 (url-mid (concat "news" ":" mid-or-mail))
6190 (url-mailto (concat "mailto" ":" mid-or-mail)))
6191 (gnus-message 9 "mid-or-mail=%s" mid-or-mail)
6192 (when (fboundp pref)
6193 (setq guessed
6194 ;; get rid of surrounding angles...
6195 (funcall pref
6197 (if (or (eq 'mid guessed) (eq 'mail guessed))
6198 (setq pref guessed)
6199 (setq pref 'ask)))
6200 (if (eq pref 'ask)
6201 (save-window-excursion
6202 (if (y-or-n-p (concat "Is <" mid-or-mail "> a mail address? "))
6203 (setq pref 'mail)
6204 (setq pref 'mid))))
6205 (cond ((eq pref 'mid)
6206 (gnus-message 8 "calling `gnus-button-handle-news' %s" url-mid)
6207 (gnus-button-handle-news url-mid))
6208 ((eq pref 'mail)
6209 (gnus-message 8 "calling `gnus-url-mailto' %s" url-mailto)
6210 (gnus-url-mailto url-mailto))
6211 (t (gnus-message 3 "Invalid string.")))))
6213 (defun gnus-button-handle-custom (url)
6214 "Follow a Custom URL."
6215 (customize-apropos (gnus-url-unhex-string url)))
6219 ;; FIXME: Maybe we should merge some of the functions that do quite similar
6220 ;; stuff?
6222 (defun gnus-button-handle-describe-function (url)
6223 "Call `describe-function' when pushing the corresponding URL button."
6224 (describe-function
6225 (intern
6226 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
6228 (defun gnus-button-handle-describe-variable (url)
6229 "Call `describe-variable' when pushing the corresponding URL button."
6230 (describe-variable
6231 (intern
6232 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
6234 (defun gnus-button-handle-symbol (url)
6235 "Display help on variable or function.
6236 Calls `describe-variable' or `describe-function'."
6237 (let ((sym (intern url)))
6238 (cond
6239 ((fboundp sym) (describe-function sym))
6240 ((boundp sym) (describe-variable sym))
6241 (t (gnus-message 3 "`%s' is not a known function of variable." url)))))
6243 (defun gnus-button-handle-describe-key (url)
6244 "Call `describe-key' when pushing the corresponding URL button."
6245 (let* ((key-string
6246 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))
6247 (keys (ignore-errors (eval `(kbd ,key-string)))))
6248 (if keys
6249 (describe-key keys)
6250 (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
6252 (defun gnus-button-handle-apropos (url)
6253 "Call `apropos' when pushing the corresponding URL button."
6254 (apropos (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
6256 (defun gnus-button-handle-apropos-command (url)
6257 "Call `apropos' when pushing the corresponding URL button."
6258 (apropos-command
6259 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
6261 (defun gnus-button-handle-apropos-variable (url)
6262 "Call `apropos' when pushing the corresponding URL button."
6263 (funcall
6264 (if (fboundp 'apropos-variable) 'apropos-variable 'apropos)
6265 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
6267 (defun gnus-button-handle-apropos-documentation (url)
6268 "Call `apropos' when pushing the corresponding URL button."
6269 (funcall
6270 (if (fboundp 'apropos-documentation) 'apropos-documentation 'apropos)
6271 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
6273 (defun gnus-button-handle-library (url)
6274 "Call `locate-library' when pushing the corresponding URL button."
6275 (gnus-message 9 "url=`%s'" url)
6276 (let* ((lib (locate-library url))
6277 (file (gnus-replace-in-string (or lib "") "\.elc" ".el")))
6278 (if (not lib)
6279 (gnus-message 1 "Cannot locale library `%s'." url)
6280 (find-file-read-only file))))
6282 (defun gnus-button-handle-ctan (url)
6283 "Call `browse-url' when pushing a CTAN URL button."
6284 (funcall
6285 gnus-button-ctan-handler
6286 (concat
6287 gnus-ctan-url
6288 (gnus-replace-in-string url gnus-button-handle-ctan-bogus-regexp ""))))
6290 (defcustom gnus-button-tex-level 5
6291 "*Integer that says how many TeX-related buttons Gnus will show.
6292 The higher the number, the more buttons will appear and the more false
6293 positives are possible. Note that you can set this variable local to
6294 specific groups. Setting it higher in TeX groups is probably a good idea.
6295 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
6296 how to set variables in specific groups."
6297 :version "22.1"
6298 :group 'gnus-article-buttons
6299 :link '(custom-manual "(gnus)Group Parameters")
6300 :type 'integer)
6302 (defcustom gnus-button-man-level 5
6303 "*Integer that says how many man-related buttons Gnus will show.
6304 The higher the number, the more buttons will appear and the more false
6305 positives are possible. Note that you can set this variable local to
6306 specific groups. Setting it higher in Unix groups is probably a good idea.
6307 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
6308 how to set variables in specific groups."
6309 :version "22.1"
6310 :group 'gnus-article-buttons
6311 :link '(custom-manual "(gnus)Group Parameters")
6312 :type 'integer)
6314 (defcustom gnus-button-emacs-level 5
6315 "*Integer that says how many emacs-related buttons Gnus will show.
6316 The higher the number, the more buttons will appear and the more false
6317 positives are possible. Note that you can set this variable local to
6318 specific groups. Setting it higher in Emacs or Gnus related groups is
6319 probably a good idea. See Info node `(gnus)Group Parameters' and the variable
6320 `gnus-parameters' on how to set variables in specific groups."
6321 :version "22.1"
6322 :group 'gnus-article-buttons
6323 :link '(custom-manual "(gnus)Group Parameters")
6324 :type 'integer)
6326 (defcustom gnus-button-message-level 5
6327 "*Integer that says how many buttons for news or mail messages will appear.
6328 The higher the number, the more buttons will appear and the more false
6329 positives are possible."
6330 ;; mail addresses, MIDs, URLs for news, ...
6331 :version "22.1"
6332 :group 'gnus-article-buttons
6333 :type 'integer)
6335 (defcustom gnus-button-browse-level 5
6336 "*Integer that says how many buttons for browsing will appear.
6337 The higher the number, the more buttons will appear and the more false
6338 positives are possible."
6339 ;; stuff handled by `browse-url' or `gnus-button-embedded-url'
6340 :version "22.1"
6341 :group 'gnus-article-buttons
6342 :type 'integer)
6344 (defcustom gnus-button-alist
6346 0 (>= gnus-button-message-level 0) gnus-button-handle-news 3)
6349 0 t gnus-button-handle-news 2)
6351 1 (>= gnus-button-message-level 0) gnus-button-fetch-group 5)
6353 0 (>= gnus-button-message-level 0) gnus-button-fetch-group 3)
6354 ;; RFC 2392 (Don't allow `/' in domain part --> CID)
6356 0 (>= gnus-button-message-level 0) gnus-button-message-id 2)
6358 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
6360 0 (>= gnus-button-message-level 0) gnus-url-mailto 2)
6361 ;; RFC 2368 (The mailto URL scheme)
6363 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
6365 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
6366 ;; CTAN
6368 gnus-button-ctan-directory-regexp
6370 0 (>= gnus-button-tex-level 1) gnus-button-handle-ctan 1)
6372 gnus-button-ctan-directory-regexp
6374 1 (>= gnus-button-tex-level 6) gnus-button-handle-ctan 1)
6375 ((concat
6377 gnus-button-ctan-directory-regexp
6379 1 (>= gnus-button-tex-level 8) gnus-button-handle-ctan 1)
6380 ;; This is info (home-grown style) <info://foo/bar+baz>
6382 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
6383 ;; Info GNOME style <info:foo#bar_baz>
6385 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-gnome 1)
6386 ;; Info KDE style <info:(foo)bar baz>
6388 1 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-kde 2)
6390 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 2)
6392 ;; Info links like `C-h i d m CC Mode RET'
6393 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-keystrokes 2)
6394 ;; This is custom
6396 0 (>= gnus-button-emacs-level 5) gnus-button-handle-custom 2)
6398 (>= gnus-button-emacs-level 1) gnus-button-handle-custom 1)
6399 ;; Emacs help commands
6401 ;; regexp doesn't match arguments containing ` '.
6402 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos 1)
6404 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-command 1)
6406 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-variable 1)
6408 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-documentation 1)
6409 ;; The following entries may lead to many false positives so don't enable
6410 ;; them by default (use a high button level).
6412 ;; Exclude [.?] for URLs in gmane.emacs.cvs
6413 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
6415 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
6417 0 (>= gnus-button-emacs-level 8) gnus-button-handle-symbol 1)
6419 0 (>= gnus-button-emacs-level 9) gnus-button-handle-symbol 1)
6421 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-variable 1)
6423 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-function 1)
6425 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
6427 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
6429 ;; Unlike the other regexps we really have to require quoting
6430 ;; here to determine where it ends.
6431 1 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
6432 ;; This is how URLs _should_ be embedded in text (RFC 1738, RFC 2396)...
6434 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
6435 ;; RFC 2396 (2.4.3., delims) ...
6437 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
6438 ;; RFC 2396 (2.4.3., delims) ...
6440 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
6441 ;; Raw URLs.
6442 (gnus-button-url-regexp
6443 0 (>= gnus-button-browse-level 0) browse-url 0)
6444 ;; man pages
6446 0 (and (>= gnus-button-man-level 1) (< gnus-button-man-level 3))
6447 gnus-button-handle-man 1)
6448 ;; more man pages: resolv.conf(5), iso_8859-1(7), xterm(1x)
6450 0 (and (>= gnus-button-man-level 3) (< gnus-button-man-level 5))
6451 gnus-button-handle-man 1)
6452 ;; even more: Apache::PerlRun(3pm), PDL::IO::FastRaw(3pm),
6453 ;; SoWWWAnchor(3iv), XSelectInput(3X11), X(1), X(7)
6455 0 (>= gnus-button-man-level 5) gnus-button-handle-man 1)
6456 ;; MID or mail: To avoid too many false positives we don't try to catch
6457 ;; all kind of allowed MIDs or mail addresses. Domain part must contain
6458 ;; at least one dot. TLD must contain two or three chars or be a know TLD
6459 ;; (info|name|...). Put this entry near the _end_ of `gnus-button-alist'
6460 ;; so that non-ambiguous entries (see above) match first.
6461 (gnus-button-mid-or-mail-regexp
6462 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1))
6463 "*Alist of regexps matching buttons in article bodies.
6465 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
6466 REGEXP: is the string (case insensitive) matching text around the button (can
6467 also be Lisp expression evaluating to a string),
6468 BUTTON: is the number of the regexp grouping actually matching the button,
6469 FORM: is a Lisp expression which must eval to true for the button to
6470 be added,
6471 CALLBACK: is the function to call when the user push this button, and each
6472 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
6474 CALLBACK can also be a variable, in that case the value of that
6475 variable it the real callback function."
6476 :group 'gnus-article-buttons
6477 :type '(repeat (list (choice regexp variable sexp)
6478 (integer :tag "Button")
6479 (sexp :tag "Form")
6480 (function :tag "Callback")
6481 (repeat :tag "Par"
6482 :inline t
6483 (integer :tag "Regexp group")))))
6485 (defcustom gnus-header-button-alist
6487 0 (>= gnus-button-message-level 0) gnus-button-message-id 0)
6489 1 (>= gnus-button-message-level 0) gnus-button-reply 1)
6491 0 (>= gnus-button-message-level 0) gnus-msg-mail 0)
6492 ("^X-[Uu][Rr][Ll]:" gnus-button-url-regexp
6493 0 (>= gnus-button-browse-level 0) browse-url 0)
6494 ("^Subject:" gnus-button-url-regexp
6495 0 (>= gnus-button-browse-level 0) browse-url 0)
6496 ("^[^:]+:" gnus-button-url-regexp
6497 0 (>= gnus-button-browse-level 0) browse-url 0)
6499 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
6501 1 (>= gnus-button-message-level 0) gnus-button-message-id 4))
6502 "*Alist of headers and regexps to match buttons in article heads.
6504 This alist is very similar to `gnus-button-alist', except that each
6505 alist has an additional HEADER element first in each entry:
6507 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
6509 HEADER is a regexp to match a header. For a fuller explanation, see
6510 `gnus-button-alist'."
6511 :group 'gnus-article-buttons
6512 :group 'gnus-article-headers
6513 :type '(repeat (list (regexp :tag "Header")
6514 (choice regexp variable)
6515 (integer :tag "Button")
6516 (sexp :tag "Form")
6517 (function :tag "Callback")
6518 (repeat :tag "Par"
6519 :inline t
6520 (integer :tag "Regexp group")))))
6522 (defvar gnus-button-regexp nil)
6523 (defvar gnus-button-marker-list nil)
6524 ;; Regexp matching any of the regexps from `gnus-button-alist'.
6526 (defvar gnus-button-last nil)
6527 ;; The value of `gnus-button-alist' when `gnus-button-regexp' was build.
6529 ;;; Commands:
6531 (defun gnus-article-push-button (event)
6532 "Check text under the mouse pointer for a callback function.
6533 If the text under the mouse pointer has a `gnus-callback' property,
6534 call it with the value of the `gnus-data' text property."
6535 (interactive "e")
6536 (set-buffer (window-buffer (posn-window (event-start event))))
6537 (let* ((pos (posn-point (event-start event)))
6538 (data (get-text-property pos 'gnus-data))
6539 (fun (get-text-property pos 'gnus-callback)))
6540 (goto-char pos)
6541 (when fun
6542 (funcall fun data))))
6544 (defun gnus-article-press-button ()
6545 "Check text at point for a callback function.
6546 If the text at point has a `gnus-callback' property,
6547 call it with the value of the `gnus-data' text property."
6548 (interactive)
6549 (let ((data (get-text-property (point) 'gnus-data))
6550 (fun (get-text-property (point) 'gnus-callback)))
6551 (when fun
6552 (funcall fun data))))
6554 (defun gnus-article-highlight (&optional force)
6555 "Highlight current article.
6556 This function calls `gnus-article-highlight-headers',
6557 `gnus-article-highlight-citation',
6558 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
6559 do the highlighting. See the documentation for those functions."
6560 (interactive (list 'force))
6561 (gnus-article-highlight-headers)
6562 (gnus-article-highlight-citation force)
6563 (gnus-article-highlight-signature)
6564 (gnus-article-add-buttons force)
6565 (gnus-article-add-buttons-to-head))
6567 (defun gnus-article-highlight-some (&optional force)
6568 "Highlight current article.
6569 This function calls `gnus-article-highlight-headers',
6570 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
6571 do the highlighting. See the documentation for those functions."
6572 (interactive (list 'force))
6573 (gnus-article-highlight-headers)
6574 (gnus-article-highlight-signature)
6575 (gnus-article-add-buttons))
6577 (defun gnus-article-highlight-headers ()
6578 "Highlight article headers as specified by `gnus-header-face-alist'."
6579 (interactive)
6580 (save-excursion
6581 (set-buffer gnus-article-buffer)
6582 (save-restriction
6583 (let ((alist gnus-header-face-alist)
6584 (inhibit-read-only t)
6585 (case-fold-search t)
6586 (inhibit-point-motion-hooks t)
6587 entry regexp header-face field-face from hpoints fpoints)
6588 (article-narrow-to-head)
6589 (while (setq entry (pop alist))
6590 (goto-char (point-min))
6592 (if (string-equal "" (nth 0 entry))
6594 (nth 0 entry))
6596 header-face (nth 1 entry)
6597 field-face (nth 2 entry))
6598 (while (and (re-search-forward regexp nil t)
6599 (not (eobp)))
6600 (beginning-of-line)
6601 (setq from (point))
6602 (unless (search-forward ":" nil t)
6603 (forward-char 1))
6604 (when (and header-face
6605 (not (memq (point) hpoints)))
6606 (push (point) hpoints)
6607 (gnus-put-text-property from (point) 'face header-face))
6608 (when (and field-face
6609 (not (memq (setq from (point)) fpoints)))
6610 (push from fpoints)
6612 (forward-char -2)
6613 (goto-char (point-max)))
6614 (gnus-put-text-property from (point) 'face field-face))))))))
6616 (defun gnus-article-highlight-signature ()
6617 "Highlight the signature in an article.
6618 It does this by highlighting everything after
6619 `gnus-signature-separator' using the face `gnus-signature'."
6620 (interactive)
6621 (save-excursion
6622 (set-buffer gnus-article-buffer)
6623 (let ((inhibit-read-only t)
6624 (inhibit-point-motion-hooks t))
6625 (save-restriction
6626 (when (and gnus-signature-face
6627 (gnus-article-narrow-to-signature))
6628 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max))
6629 'face gnus-signature-face)
6630 (widen)
6631 (gnus-article-search-signature)
6632 (let ((start (match-beginning 0))
6633 (end (set-marker (make-marker) (1+ (match-end 0)))))
6634 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
6635 end)))))))
6637 (defun gnus-button-in-region-p (b e prop)
6638 "Say whether PROP exists in the region."
6639 (text-property-not-all b e prop nil))
6641 (defun gnus-article-add-buttons (&optional force)
6642 "Find external references in the article and make buttons of them.
6644 specified by `gnus-button-alist'."
6645 (interactive (list 'force))
6646 (save-excursion
6647 (set-buffer gnus-article-buffer)
6648 (let ((inhibit-read-only t)
6649 (inhibit-point-motion-hooks t)
6650 (case-fold-search t)
6651 (alist gnus-button-alist)
6652 beg entry regexp)
6653 ;; Remove all old markers.
6654 (let (marker entry new-list)
6655 (while (setq marker (pop gnus-button-marker-list))
6656 (if (or (< marker (point-min)) (>= marker (point-max)))
6657 (push marker new-list)
6658 (goto-char marker)
6659 (when (setq entry (gnus-button-entry))
6660 (put-text-property (match-beginning (nth 1 entry))
6661 (match-end (nth 1 entry))
6662 'gnus-callback nil))
6663 (set-marker marker nil)))
6664 (setq gnus-button-marker-list new-list))
6665 ;; We skip the headers.
6666 (article-goto-body)
6667 (setq beg (point))
6668 (while (setq entry (pop alist))
6669 (setq regexp (eval (car entry)))
6670 (goto-char beg)
6671 (while (re-search-forward regexp nil t)
6672 (let* ((start (and entry (match-beginning (nth 1 entry))))
6673 (end (and entry (match-end (nth 1 entry))))
6674 (from (match-beginning 0)))
6675 (when (and (or (eq t (nth 2 entry))
6676 (eval (nth 2 entry)))
6677 (not (gnus-button-in-region-p
6678 start end 'gnus-callback)))
6679 ;; That optional form returned non-nil, so we add the
6680 ;; button.
6681 (gnus-article-add-button
6682 start end 'gnus-button-push
6683 (car (push (set-marker (make-marker) from)
6684 gnus-button-marker-list))))))))))
6686 ;; Add buttons to the head of an article.
6687 (defun gnus-article-add-buttons-to-head ()
6688 "Add buttons to the head of the article."
6689 (interactive)
6690 (save-excursion
6691 (set-buffer gnus-article-buffer)
6692 (save-restriction
6693 (let ((inhibit-read-only t)
6694 (inhibit-point-motion-hooks t)
6695 (case-fold-search t)
6696 (alist gnus-header-button-alist)
6697 entry beg end)
6698 (article-narrow-to-head)
6699 (while alist
6700 ;; Each alist entry.
6701 (setq entry (car alist)
6702 alist (cdr alist))
6703 (goto-char (point-min))
6704 (while (re-search-forward (car entry) nil t)
6705 ;; Each header matching the entry.
6706 (setq beg (match-beginning 0))
6708 (match-beginning 0))
6709 (point-max)))
6710 (goto-char beg)
6711 (while (re-search-forward (eval (nth 1 entry)) end t)
6712 ;; Each match within a header.
6713 (let* ((entry (cdr entry))
6714 (start (match-beginning (nth 1 entry)))
6715 (end (match-end (nth 1 entry)))
6716 (form (nth 2 entry)))
6717 (goto-char (match-end 0))
6718 (when (eval form)
6719 (gnus-article-add-button
6720 start end (nth 3 entry)
6721 (buffer-substring (match-beginning (nth 4 entry))
6722 (match-end (nth 4 entry)))))))
6723 (goto-char end)))))))
6725 ;;; External functions:
6727 (defun gnus-article-add-button (from to fun &optional data)
6728 "Create a button between FROM and TO with callback FUN and data DATA."
6729 (when gnus-article-button-face
6730 (gnus-overlay-put (gnus-make-overlay from to)
6731 'face gnus-article-button-face))
6732 (gnus-add-text-properties
6733 from to
6734 (nconc (and gnus-article-mouse-face
6735 (list gnus-mouse-face-prop gnus-article-mouse-face))
6736 (list 'gnus-callback fun)
6737 (and data (list 'gnus-data data))))
6738 (widget-convert-button 'link from to :action 'gnus-widget-press-button
6739 :button-keymap gnus-widget-button-keymap))
6741 ;;; Internal functions:
6743 (defun gnus-article-set-globals ()
6744 (save-excursion
6745 (set-buffer gnus-summary-buffer)
6746 (gnus-set-global-variables)))
6748 (defun gnus-signature-toggle (end)
6749 (save-excursion
6750 (set-buffer gnus-article-buffer)
6751 (let ((inhibit-read-only t)
6752 (inhibit-point-motion-hooks t))
6753 (if (text-property-any end (point-max) 'article-type 'signature)
6754 (progn
6755 (gnus-delete-wash-type 'signature)
6756 (gnus-remove-text-properties-when
6757 'article-type 'signature end (point-max)
6758 (cons 'article-type (cons 'signature
6759 gnus-hidden-properties))))
6760 (gnus-add-wash-type 'signature)
6761 (gnus-add-text-properties-when
6762 'article-type nil end (point-max)
6763 (cons 'article-type (cons 'signature
6764 gnus-hidden-properties)))))
6765 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
6766 (gnus-set-mode-line 'article))))
6768 (defun gnus-button-entry ()
6769 ;; Return the first entry in `gnus-button-alist' matching this place.
6770 (let ((alist gnus-button-alist)
6771 (entry nil))
6772 (while alist
6773 (setq entry (pop alist))
6774 (if (looking-at (eval (car entry)))
6775 (setq alist nil)
6776 (setq entry nil)))
6777 entry))
6779 (defun gnus-button-push (marker)
6780 ;; Push button starting at MARKER.
6781 (save-excursion
6782 (goto-char marker)
6783 (let* ((entry (gnus-button-entry))
6784 (inhibit-point-motion-hooks t)
6785 (fun (nth 3 entry))
6786 (args (mapcar (lambda (group)
6787 (let ((string (match-string group)))
6788 (gnus-set-text-properties
6789 0 (length string) nil string)
6790 string))
6791 (nthcdr 4 entry))))
6792 (cond
6793 ((fboundp fun)
6794 (apply fun args))
6795 ((and (boundp fun)
6796 (fboundp (symbol-value fun)))
6797 (apply (symbol-value fun) args))
6798 (t
6799 (gnus-message 1 "You must define `%S' to use this button"
6800 (cons fun args)))))))
6802 (defun gnus-parse-news-url (url)
6803 (let (scheme server port group message-id articles)
6804 (with-temp-buffer
6805 (insert url)
6806 (goto-char (point-min))
6808 (setq scheme (match-string 1))
6809 (goto-char (match-end 0)))
6811 (setq server (match-string 1))
6812 (setq port (if (stringp (match-string 3))
6813 (string-to-number (match-string 3))
6814 (match-string 3)))
6815 (goto-char (match-end 0)))
6817 (cond
6819 (setq message-id (match-string 1)))
6821 (setq group (match-string 1)
6822 articles (split-string (match-string 2) "-")))
6824 (setq group (match-string 1)))
6825 (t
6826 (error "Unknown news URL syntax"))))
6827 (list scheme server port group message-id articles)))
6829 (defun gnus-button-handle-news (url)
6830 "Fetch a news URL."
6831 (destructuring-bind (scheme server port group message-id articles)
6832 (gnus-parse-news-url url)
6833 (cond
6834 (message-id
6835 (save-excursion
6836 (set-buffer gnus-summary-buffer)
6837 (if server
6838 (let ((gnus-refer-article-method
6839 (nconc (list (list 'nntp server))
6840 gnus-refer-article-method))
6841 (nntp-port-number (or port "nntp")))
6842 (gnus-message 7 "Fetching %s with %s"
6843 message-id gnus-refer-article-method)
6844 (gnus-summary-refer-article message-id))
6845 (gnus-summary-refer-article message-id))))
6846 (group
6847 (gnus-button-fetch-group url)))))
6849 (defun gnus-button-handle-man (url)
6850 "Fetch a man page."
6851 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
6852 (when (eq gnus-button-man-handler 'woman)
6854 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
6855 (funcall gnus-button-man-handler url))
6857 (defun gnus-button-handle-info-url (url)
6858 "Fetch an info URL."
6859 (setq url (mm-subst-char-in-string ?+ ?\ url))
6860 (cond
6862 (gnus-info-find-node
6863 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
6864 "Gnus")
6865 ")" (gnus-url-unhex-string (match-string 2 url)))))
6867 (setq url
6868 (gnus-replace-in-string
6870 (gnus-info-find-node url))
6871 (t (error "Can't parse %s" url))))
6873 (defun gnus-button-handle-info-url-gnome (url)
6874 "Fetch GNOME style info URL."
6875 (setq url (mm-subst-char-in-string ?_ ?\ url))
6877 (gnus-info-find-node
6878 (concat "("
6879 (gnus-url-unhex-string
6880 (match-string 1 url))
6881 ")"
6882 (or (gnus-url-unhex-string
6883 (match-string 2 url))
6884 "Top")))
6885 (error "Can't parse %s" url)))
6887 (defun gnus-button-handle-info-url-kde (url)
6888 "Fetch KDE style info URL."
6889 (gnus-info-find-node (gnus-url-unhex-string url)))
6891 (defun gnus-button-handle-info-keystrokes (url)
6892 "Call `info' when pushing the corresponding URL button."
6893 ;; For links like `C-h i d m gnus RET', `C-h i d m CC Mode RET'.
6894 (info)
6895 (Info-directory)
6896 (Info-menu url))
6898 (defun gnus-button-message-id (message-id)
6899 "Fetch MESSAGE-ID."
6900 (save-excursion
6901 (set-buffer gnus-summary-buffer)
6902 (gnus-summary-refer-article message-id)))
6904 (defun gnus-button-fetch-group (address)
6905 "Fetch GROUP specified by ADDRESS."
6906 (if (not (string-match "[:/]" address))
6907 ;; This is just a simple group url.
6908 (gnus-group-read-ephemeral-group address gnus-select-method)
6909 (if (not
6910 (string-match
6912 address))
6913 (error "Can't parse %s" address)
6914 (gnus-group-read-ephemeral-group
6915 (match-string 4 address)
6916 `(nntp ,(match-string 1 address)
6917 (nntp-address ,(match-string 1 address))
6918 (nntp-port-number ,(if (match-end 3)
6919 (match-string 3 address)
6920 "nntp")))
6921 nil nil nil
6922 (and (match-end 6) (list (string-to-number (match-string 6 address))))))))
6924 (defun gnus-url-parse-query-string (query &optional downcase)
6925 (let (retval pairs cur key val)
6926 (setq pairs (split-string query "&"))
6927 (while pairs
6928 (setq cur (car pairs)
6929 pairs (cdr pairs))
6930 (if (not (string-match "=" cur))
6931 nil ; Grace
6932 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
6933 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
6934 (if downcase
6935 (setq key (downcase key)))
6936 (setq cur (assoc key retval))
6937 (if cur
6938 (setcdr cur (cons val (cdr cur)))
6939 (setq retval (cons (list key val) retval)))))
6940 retval))
6942 (defun gnus-url-mailto (url)
6943 ;; Send mail to someone
6945 (setq url (substring url (match-beginning 1) nil)))
6946 (let (to args subject func)
6947 (setq args (gnus-url-parse-query-string
6949 (substring url 1)
6951 (concat "to=" (match-string 1 url) "&"
6952 (match-string 2 url))
6953 (concat "to=" url)))
6954 t)
6955 subject (cdr-safe (assoc "subject" args)))
6956 (gnus-msg-mail)
6957 (while args
6958 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
6959 (if (fboundp func)
6960 (funcall func)
6961 (message-position-on-field (caar args)))
6962 (insert (gnus-replace-in-string
6963 (mapconcat 'identity (reverse (cdar args)) ", ")
6965 (setq args (cdr args)))
6966 (if subject
6967 (message-goto-body)
6968 (message-goto-subject))))
6970 (defun gnus-button-embedded-url (address)
6971 "Activate ADDRESS with `browse-url'."
6972 (browse-url (gnus-strip-whitespace address)))
6974 ;;; Next/prev buttons in the article buffer.
6979 (defvar gnus-prev-page-map
6980 (let ((map (make-sparse-keymap)))
6981 (unless (>= emacs-major-version 21)
6982 ;; XEmacs doesn't care.
6983 (set-keymap-parent map gnus-article-mode-map))
6984 (define-key map gnus-mouse-2 'gnus-button-prev-page)
6986 map))
6988 (defvar gnus-next-page-map
6989 (let ((map (make-sparse-keymap)))
6990 (unless (>= emacs-major-version 21)
6991 ;; XEmacs doesn't care.
6992 (set-keymap-parent map gnus-article-mode-map))
6993 (define-key map gnus-mouse-2 'gnus-button-next-page)
6995 map))
6997 (defun gnus-insert-prev-page-button ()
6998 (let ((b (point))
6999 (inhibit-read-only t))
7000 (gnus-eval-format
7001 gnus-prev-page-line-format nil
7002 `(,@(gnus-local-map-property gnus-prev-page-map)
7003 gnus-prev t
7004 gnus-callback gnus-article-button-prev-page
7005 article-type annotation))
7006 (widget-convert-button
7007 'link b (if (bolp)
7008 ;; Exclude a newline.
7009 (1- (point))
7010 (point))
7011 :action 'gnus-button-prev-page
7012 :button-keymap gnus-prev-page-map)))
7014 (defun gnus-button-next-page (&optional args more-args)
7015 "Go to the next page."
7016 (interactive)
7017 (let ((win (selected-window)))
7018 (select-window (gnus-get-buffer-window gnus-article-buffer t))
7019 (gnus-article-next-page)
7020 (select-window win)))
7022 (defun gnus-button-prev-page (&optional args more-args)
7023 "Go to the prev page."
7024 (interactive)
7025 (let ((win (selected-window)))
7026 (select-window (gnus-get-buffer-window gnus-article-buffer t))
7027 (gnus-article-prev-page)
7028 (select-window win)))
7030 (defun gnus-insert-next-page-button ()
7031 (let ((b (point))
7032 (inhibit-read-only t))
7033 (gnus-eval-format gnus-next-page-line-format nil
7034 `(,@(gnus-local-map-property gnus-next-page-map)
7035 gnus-next t
7036 gnus-callback gnus-article-button-next-page
7037 article-type annotation))
7038 (widget-convert-button
7039 'link b (if (bolp)
7040 ;; Exclude a newline.
7041 (1- (point))
7042 (point))
7043 :action 'gnus-button-next-page
7044 :button-keymap gnus-next-page-map)))
7046 (defun gnus-article-button-next-page (arg)
7047 "Go to the next page."
7048 (interactive "P")
7049 (let ((win (selected-window)))
7050 (select-window (gnus-get-buffer-window gnus-article-buffer t))
7051 (gnus-article-next-page)
7052 (select-window win)))
7054 (defun gnus-article-button-prev-page (arg)
7055 "Go to the prev page."
7056 (interactive "P")
7057 (let ((win (selected-window)))
7058 (select-window (gnus-get-buffer-window gnus-article-buffer t))
7059 (gnus-article-prev-page)
7060 (select-window win)))
7062 (defvar gnus-decode-header-methods
7063 '(mail-decode-encoded-word-region)
7064 "List of methods used to decode headers.
7066 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
7067 is FUNCTION, FUNCTION will be applied to all newsgroups. If item is a
7068 \(REGEXP . FUNCTION), FUNCTION will be only apply to the newsgroups
7069 whose names match REGEXP.
7071 For example:
7073 mail-decode-encoded-word-region
7075 ")
7077 (defvar gnus-decode-header-methods-cache nil)
7079 (defun gnus-multi-decode-header (start end)
7080 "Apply the functions from `gnus-encoded-word-methods' that match."
7081 (unless (and gnus-decode-header-methods-cache
7082 (eq gnus-newsgroup-name
7083 (car gnus-decode-header-methods-cache)))
7084 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
7085 (mapcar (lambda (x)
7086 (if (symbolp x)
7087 (nconc gnus-decode-header-methods-cache (list x))
7088 (if (and gnus-newsgroup-name
7089 (string-match (car x) gnus-newsgroup-name))
7090 (nconc gnus-decode-header-methods-cache
7091 (list (cdr x))))))
7092 gnus-decode-header-methods))
7093 (let ((xlist gnus-decode-header-methods-cache))
7094 (pop xlist)
7095 (save-restriction
7096 (narrow-to-region start end)
7097 (while xlist
7098 (funcall (pop xlist) (point-min) (point-max))))))
7100 ;;;
7101 ;;; Treatment top-level handling.
7102 ;;;
7104 (defun gnus-treat-article (condition &optional part-number total-parts type)
7105 (let ((length (- (point-max) (point-min)))
7106 (alist gnus-treatment-function-alist)
7107 (article-goto-body-goes-to-point-min-p t)
7108 (treated-type
7109 (or (not type)
7110 (catch 'found
7111 (let ((list gnus-article-treat-types))
7112 (while list
7113 (when (string-match (pop list) type)
7114 (throw 'found t)))))))
7115 (highlightp (gnus-visual-p 'article-highlight 'highlight))
7116 val elem)
7117 (gnus-run-hooks 'gnus-part-display-hook)
7118 (dolist (elem alist)
7119 (setq val
7120 (save-excursion
7121 (when (gnus-buffer-live-p gnus-summary-buffer)
7122 (set-buffer gnus-summary-buffer))
7123 (symbol-value (car elem))))
7124 (when (and (or (consp val)
7125 treated-type)
7126 (gnus-treat-predicate val)
7127 (or (not (get (car elem) 'highlight))
7128 highlightp))
7129 (save-restriction
7130 (funcall (cadr elem)))))))
7132 ;; Dynamic variables.
7133 (eval-when-compile
7134 (defvar part-number)
7135 (defvar total-parts)
7136 (defvar type)
7137 (defvar condition)
7138 (defvar length))
7140 (defun gnus-treat-predicate (val)
7141 (cond
7142 ((null val)
7143 nil)
7144 (condition
7145 (eq condition val))
7146 ((and (listp val)
7147 (stringp (car val)))
7148 (apply 'gnus-or (mapcar `(lambda (s)
7149 (string-match s ,(or gnus-newsgroup-name "")))
7150 val)))
7151 ((listp val)
7152 (let ((pred (pop val)))
7153 (cond
7154 ((eq pred 'or)
7155 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
7156 ((eq pred 'and)
7157 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
7158 ((eq pred 'not)
7159 (not (gnus-treat-predicate (car val))))
7160 ((eq pred 'typep)
7161 (equal (car val) type))
7162 (t
7163 (error "%S is not a valid predicate" pred)))))
7164 ((eq val t)
7165 t)
7166 ((eq val 'head)
7167 nil)
7168 ((eq val 'last)
7169 (eq part-number total-parts))
7170 ((numberp val)
7171 (< length val))
7172 (t
7173 (error "%S is not a valid value" val))))
7175 (defun gnus-article-encrypt-body (protocol &optional n)
7176 "Encrypt the article body."
7177 (interactive
7178 (list
7179 (or gnus-article-encrypt-protocol
7180 (completing-read "Encrypt protocol: "
7181 gnus-article-encrypt-protocol-alist
7182 nil t))
7183 current-prefix-arg))
7184 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
7185 (unless func
7186 (error "Can't find the encrypt protocol %s" protocol))
7187 (if (member gnus-newsgroup-name '("nndraft:delayed"
7188 "nndraft:drafts"
7189 "nndraft:queue"))
7190 (error "Can't encrypt the article in group %s"
7191 gnus-newsgroup-name))
7192 (gnus-summary-iterate n
7193 (save-excursion
7194 (set-buffer gnus-summary-buffer)
7195 (let ((mail-parse-charset gnus-newsgroup-charset)
7196 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
7197 (summary-buffer gnus-summary-buffer)
7198 references point)
7199 (gnus-set-global-variables)
7200 (when (gnus-group-read-only-p)
7201 (error "The current newsgroup does not support article encrypt"))
7202 (gnus-summary-show-article t)
7203 (setq references
7204 (or (mail-header-references gnus-current-headers) ""))
7205 (set-buffer gnus-article-buffer)
7206 (let* ((inhibit-read-only t)
7207 (headers
7208 (mapcar (lambda (field)
7209 (and (save-restriction
7210 (message-narrow-to-head)
7211 (goto-char (point-min))
7212 (search-forward field nil t))
7213 (prog2
7214 (message-narrow-to-field)
7215 (buffer-string)
7216 (delete-region (point-min) (point-max))
7217 (widen))))
7218 '("Content-Type:" "Content-Transfer-Encoding:"
7219 "Content-Disposition:"))))
7220 (message-narrow-to-head)
7221 (message-remove-header "MIME-Version")
7222 (goto-char (point-max))
7223 (setq point (point))
7224 (insert (apply 'concat headers))
7225 (widen)
7226 (narrow-to-region point (point-max))
7227 (let ((message-options message-options))
7228 (message-options-set 'message-sender user-mail-address)
7229 (message-options-set 'message-recipients user-mail-address)
7230 (message-options-set 'message-sign-encrypt 'not)
7231 (funcall func))
7232 (goto-char (point-min))
7234 (widen)
7235 (gnus-summary-edit-article-done
7236 references nil summary-buffer t))
7237 (when gnus-keep-backlog
7238 (gnus-backlog-remove-article
7239 (car gnus-article-current) (cdr gnus-article-current)))
7240 (save-excursion
7241 (when (get-buffer gnus-original-article-buffer)
7242 (set-buffer gnus-original-article-buffer)
7243 (setq gnus-original-article nil)))
7244 (when gnus-use-cache
7245 (gnus-cache-update-article
7246 (car gnus-article-current) (cdr gnus-article-current))))))))
7249 "The following specs can be used:
7250 %t The security MIME type
7251 %i Additional info
7252 %d Details
7253 %D Details if button is pressed")
7256 "The following specs can be used:
7257 %t The security MIME type
7258 %i Additional info
7259 %d Details
7260 %D Details if button is pressed")
7262 (defvar gnus-mime-security-button-line-format-alist
7263 '((?t gnus-tmp-type ?s)
7264 (?i gnus-tmp-info ?s)
7265 (?d gnus-tmp-details ?s)
7266 (?D gnus-tmp-pressed-details ?s)))
7268 (defvar gnus-mime-security-button-map
7269 (let ((map (make-sparse-keymap)))
7270 (unless (>= (string-to-number emacs-version) 21)
7271 (set-keymap-parent map gnus-article-mode-map))
7272 (define-key map gnus-mouse-2 'gnus-article-push-button)
7274 map))
7276 (defvar gnus-mime-security-details-buffer nil)
7278 (defvar gnus-mime-security-button-pressed nil)
7280 (defvar gnus-mime-security-show-details-inline t
7281 "If non-nil, show details in the article buffer.")
7283 (defun gnus-mime-security-verify-or-decrypt (handle)
7284 (mm-remove-parts (cdr handle))
7285 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
7286 point (inhibit-read-only t))
7287 (if region
7288 (goto-char (car region)))
7289 (save-restriction
7290 (narrow-to-region (point) (point))
7291 (with-current-buffer (mm-handle-multipart-original-buffer handle)
7292 (let* ((mm-verify-option 'known)
7293 (mm-decrypt-option 'known)
7294 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
7295 (unless (eq nparts (cdr handle))
7296 (mm-destroy-parts (cdr handle))
7297 (setcdr handle nparts))))
7298 (setq point (point))
7299 (gnus-mime-display-security handle)
7300 (goto-char (point-max)))
7301 (when region
7302 (delete-region (point) (cdr region))
7303 (set-marker (car region) nil)
7304 (set-marker (cdr region) nil))
7305 (goto-char point)))
7307 (defun gnus-mime-security-show-details (handle)
7308 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
7309 (if (not details)
7310 (gnus-message 5 "No details.")
7311 (if gnus-mime-security-show-details-inline
7312 (let ((gnus-mime-security-button-pressed
7313 (not (get-text-property (point) 'gnus-mime-details)))
7314 (gnus-mime-security-button-line-format
7315 (get-text-property (point) 'gnus-line-format))
7316 (inhibit-read-only t))
7317 (forward-char -1)
7318 (while (eq (get-text-property (point) 'gnus-line-format)
7319 gnus-mime-security-button-line-format)
7320 (forward-char -1))
7321 (forward-char)
7322 (save-restriction
7323 (narrow-to-region (point) (point))
7324 (gnus-insert-mime-security-button handle))
7325 (delete-region (point)
7326 (or (text-property-not-all
7327 (point) (point-max)
7328 'gnus-line-format
7329 gnus-mime-security-button-line-format)
7330 (point-max))))
7331 ;; Not inlined.
7332 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
7333 (with-current-buffer gnus-mime-security-details-buffer
7334 (erase-buffer)
7335 t)
7336 (setq gnus-mime-security-details-buffer
7337 (gnus-get-buffer-create "*MIME Security Details*")))
7338 (with-current-buffer gnus-mime-security-details-buffer
7339 (insert details)
7340 (goto-char (point-min)))
7341 (pop-to-buffer gnus-mime-security-details-buffer)))))
7343 (defun gnus-mime-security-press-button (handle)
7344 (save-excursion
7345 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
7346 (gnus-mime-security-show-details handle)
7347 (gnus-mime-security-verify-or-decrypt handle))))
7349 (defun gnus-insert-mime-security-button (handle &optional displayed)
7350 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
7351 (gnus-tmp-type
7352 (concat
7353 (or (nth 2 (assoc protocol mm-verify-function-alist))
7354 (nth 2 (assoc protocol mm-decrypt-function-alist))
7355 "Unknown")
7356 (if (equal (car handle) "multipart/signed")
7357 " Signed" " Encrypted")
7358 " Part"))
7359 (gnus-tmp-info
7360 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
7361 "Undecided"))
7362 (gnus-tmp-details
7363 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
7364 gnus-tmp-pressed-details
7365 b e)
7366 (setq gnus-tmp-details
7367 (if gnus-tmp-details
7369 ""))
7370 (setq gnus-tmp-pressed-details
7371 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
7372 (unless (bolp)
7374 (setq b (point))
7375 (gnus-eval-format
7376 gnus-mime-security-button-line-format
7377 gnus-mime-security-button-line-format-alist
7378 `(,@(gnus-local-map-property gnus-mime-security-button-map)
7379 gnus-callback gnus-mime-security-press-button
7380 gnus-line-format ,gnus-mime-security-button-line-format
7381 gnus-mime-details ,gnus-mime-security-button-pressed
7382 article-type annotation
7383 gnus-data ,handle))
7384 (setq e (if (bolp)
7385 ;; Exclude a newline.
7386 (1- (point))
7387 (point)))
7388 (widget-convert-button
7389 'link b e
7390 :mime-handle handle
7391 :action 'gnus-widget-press-button
7392 :button-keymap gnus-mime-security-button-map
7393 :help-echo
7394 (lambda (widget/window &optional overlay pos)
7395 ;; Needed to properly clear the message due to a bug in
7396 ;; wid-edit (XEmacs only).
7397 (when (boundp 'help-echo-owns-message)
7398 (setq help-echo-owns-message t))
7399 (format
7400 "%S: show detail"
7401 (aref gnus-mouse-2 0))))))
7403 (defun gnus-mime-display-security (handle)
7404 (save-restriction
7405 (narrow-to-region (point) (point))
7406 (unless (gnus-unbuttonized-mime-type-p (car handle))
7407 (gnus-insert-mime-security-button handle))
7408 (gnus-mime-display-mixed (cdr handle))
7409 (unless (bolp)
7411 (unless (gnus-unbuttonized-mime-type-p (car handle))
7412 (let ((gnus-mime-security-button-line-format
7413 gnus-mime-security-button-end-line-format))
7414 (gnus-insert-mime-security-button handle)))
7415 (mm-set-handle-multipart-parameter
7416 handle 'gnus-region
7417 (cons (set-marker (make-marker) (point-min))
7418 (set-marker (make-marker) (point-max))))))
7420 (gnus-ems-redefine)
7422 (provide 'gnus-art)
7424 (run-hooks 'gnus-art-load-hook)
7426 ;;; arch-tag: 2654516f-6279-48f9-a83b-05c1fa450c33
7427 ;;; gnus-art.el ends here