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1 ;;; gnus-art.el --- article mode commands for Gnus
2 ;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
3 ;; Free Software Foundation, Inc.
5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
6 ;; Keywords: news
8 ;; This file is part of GNU Emacs.
10 ;; GNU Emacs is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
13 ;; any later version.
15 ;; GNU Emacs is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
25 ;;; Commentary:
27 ;;; Code:
52 "Article display."
57 "Treating article parts."
62 "Hiding article parts."
67 "Article highlighting."
73 "Article signatures."
78 "Article headers."
83 "Special commands on articles."
88 "Fontisizing articles."
93 "Saving articles."
98 "Worshiping the MIME wonder."
103 "Pushable buttons in the article buffer."
108 "Other article options."
154 "*All headers that start with this regexp will be hidden.
155 This variable can also be a list of regexps of headers to be ignored.
156 If `gnus-visible-headers' is non-nil, this variable will be ignored."
158 regexp
163 "^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:"
164 "*All headers that do not match this regexp will be hidden.
165 This variable can also be a list of regexp of headers to remain visible.
166 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
172 regexp)
178 "*This variable is a list of regular expressions.
179 If it is non-nil, headers that match the regular expressions will
180 be placed first in the article buffer in the sequence specified by
181 this list."
186 "Headers that are only to be displayed if they have interesting data.
187 Possible values in this list are:
189 'empty Headers with no content.
190 'newsgroups Newsgroup identical to Gnus group.
191 'to-address To identical to To-address.
192 'to-list To identical to To-list.
193 'cc-list CC identical to To-list.
194 'followup-to Followup-to identical to Newsgroups.
195 'reply-to Reply-to identical to From.
196 'date Date less than four days old.
197 'long-to To and/or Cc longer than 1024 characters.
198 'many-to Multiple To and/or Cc."
212 "Skip over text that is not worth reading.
213 By default, if you set this t, then Gnus will display citations and
214 signatures, but will never scroll down to show you a page consisting
215 only of boring text. Boring text is controlled by
216 `gnus-article-boring-faces'."
222 "Regexp matching signature separator.
223 This can also be a list of regexps. In that case, it will be checked
224 from head to tail looking for a separator. Searches will be done from
225 the end of the buffer."
230 "Provide a limit to what is considered a signature.
231 If it is a number, no signature may not be longer (in characters) than
232 that number. If it is a floating point number, no signature may be
233 longer (in lines) than that number. If it is a function, the function
234 will be called without any parameters, and if it returns nil, there is
235 no signature in the buffer. If it is a string, it will be used as a
236 regexp. If it matches, the text in question is not a signature."
244 "Property list to use for hiding text."
248 ;; Fixme: This isn't the right thing for mixed graphical and non-graphical
249 ;; frames in a session.
254 'gnus-display-x-face-in-from
257 'gnus-display-x-face-in-from
258 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | \
260 "*String or function to be executed to display an X-Face header.
261 If it is a string, the command will be executed in a sub-shell
262 asynchronously. The compressed face will be piped to this command."
265 function)
271 "Regexp matching posters whose face shouldn't be shown automatically."
276 "Banner alist for stripping.
277 For example,
278 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( \\\\(e\\\\|Yahoo! \\\\)Groups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
284 banner
285 :variable-document
286 "Alist of regexps (to match group names) and banner."
287 :variable-group gnus-article-washing
288 :parameter-type
290 :value nil
293 regexp
295 :parameter-document
296 "If non-nil, specify how to remove `banners' from articles.
298 Symbol `signature' means to remove signatures delimited by
299 `gnus-signature-separator'. Any other symbol is used to look up a
300 regular expression to match the banner in `gnus-article-banner-alist'.
301 A string is used as a regular expression to match the banner
305 "Alist of mail addresses and banners.
306 Each element has the form (ADDRESS . BANNER), where ADDRESS is a regexp
307 to match a mail address in the From: header, BANNER is one of a symbol
308 `signature', an item in `gnus-article-banner-alist', a regexp and nil.
309 If ADDRESS matches author's mail address, it will remove things like
310 advertisements. For example:
313 "
320 regexp
335 2
338 value)))
346 pattern)
351 value))))
369 types))
371 ;; several times seen it triggered by normal text. --Stef
372 ;; Miles suggests that this form is sometimes used but for italics,
373 ;; so maybe we should map it to `italic'.
374 ;; ("\\(\\s-\\|^\\)\\(-\\(\\(\\w\\|-[^-]\\)+\\)-\\)\\(\\s-\\|[?!.,;]\\)"
375 ;; 2 3 gnus-emphasis-strikethru)
378 "*Alist that says how to fontify certain phrases.
379 Each item looks like this:
383 The first element is a regular expression to be matched. The second
384 is a number that says what regular expression grouping used to find
385 the entire emphasized word. The third is a number that says what
386 regexp grouping should be displayed and highlighted. The fourth
387 is the face used for highlighting."
388 :type
395 :value-create
403 widget
404 :value
407 regexp
410 face)
418 face)))
424 value)))
428 "A regexp to describe whitespace which should not be emphasized.
430 The former avoids underlining of leading and trailing whitespace,
431 and the latter avoids underlining any whitespace at all."
437 "Face used for displaying strong emphasized text (*word*)."
441 "Face used for displaying italic emphasized text (/word/)."
445 "Face used for displaying underlined emphasized text (_word_)."
449 "Face used for displaying underlined bold emphasized text (_*word*_)."
453 "Face used for displaying underlined italic emphasized text (_/word/_)."
457 "Face used for displaying bold italic emphasized text (/*word*/)."
462 "Face used for displaying underlined bold italic emphasized text.
463 Example: (_/*word*/_)."
469 "Face used for displaying strike-through text (-word-)."
474 "Face used for displaying highlighted words."
478 "Format for display of Date headers in article bodies.
479 See `format-time-string' for the possible values.
481 The variable can also be function, which should return a complete Date
482 header. The function is called with one argument, the time, which can
483 be fed to `format-time-string'."
489 "*If non-nil, don't remove any headers before saving."
494 "*This variable says how much prompting is to be done when saving articles.
495 If it is nil, no prompting will be done, and the articles will be
496 saved to the default files. If this variable is `always', each and
497 every article that is saved will be preceded by a prompt, even when
498 saving large batches of articles. If this variable is neither nil not
499 `always', there the user will be prompted once for a file name for
500 each invocation of the saving commands."
507 "Headers to keep if `gnus-save-all-headers' is nil.
508 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
509 If that variable is nil, however, all headers that match this regexp
510 will be kept while the rest will be deleted before saving."
515 "A function to save articles in your favourite format.
516 The function must be interactively callable (in other words, it must
517 be an Emacs command).
519 Gnus provides the following functions:
521 * gnus-summary-save-in-rmail (Rmail format)
522 * gnus-summary-save-in-mail (Unix mail format)
523 * gnus-summary-save-in-folder (MH folder)
524 * gnus-summary-save-in-file (article format)
525 * gnus-summary-save-body-in-file (article body)
526 * gnus-summary-save-in-vm (use VM's folder format)
527 * gnus-summary-write-to-file (article format -- overwrite)."
538 "A function generating a file name to save articles in Rmail format.
539 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
544 "A function generating a file name to save articles in Unix mail format.
545 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
550 "A function generating a file name to save articles in MH folder.
551 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
556 "A function generating a file name to save articles in article format.
557 The function is called with NEWSGROUP, HEADERS, and optional
558 LAST-FILE."
565 "*Variable used to suggest where articles are to be saved.
566 For instance, if you would like to save articles related to Gnus in
568 you could set this variable to something like:
573 This variable is an alist where the where the key is the match and the
574 value is a list of possible files to save in if the match is non-nil.
576 If the match is a string, it is used as a regexp match on the
577 article. If the match is a symbol, that symbol will be funcalled
578 from the buffer of the article to be saved with the newsgroup as the
579 parameter. If it is a list, it will be evaled in the same buffer.
581 If this form or function returns a string, this string will be used as
582 a possible file name; and if it returns a non-nil list, that list will
583 be used as possible file names."
590 "*Regexp describing what to use as article page delimiters.
592 beginning of a line."
597 "*The format specification for the article mode line.
598 See `gnus-summary-mode-line-format' for a closer description.
600 The following additional specs are available:
602 %w The article washing status.
603 %m The number of MIME parts in the article."
608 "*A hook for Gnus article mode."
613 ;; Extracted from gnus-xmas-define in order to preserve user settings
616 ;; Extracted from gnus-xmas-redefine in order to preserve user settings
620 "*Hook run after the creation of the article mode menu."
625 "*A hook called after an article has been prepared in the article buffer."
633 "Face used for highlighting buttons in the article buffer.
635 An article button is a piece of text that you can activate by pressing
636 `RET' or `mouse-2' above it."
641 "Face used for mouse highlighting in the article buffer.
643 Article buttons will be displayed in this face when the cursor is
644 above them."
649 "Face used for highlighting a signature in the article buffer.
650 Obsolete; use the face `gnus-signature' for customizations instead."
658 "Face used for highlighting a signature in the article buffer."
661 ;; backward-compatibility alias
673 "Face used for displaying from headers."
676 ;; backward-compatibility alias
688 "Face used for displaying subject headers."
691 ;; backward-compatibility alias
703 "Face used for displaying newsgroups headers.
704 In the default setup this face is only used for crossposted
705 articles."
708 ;; backward-compatibility alias
720 "Face used for displaying header names."
723 ;; backward-compatibility alias
737 ;; backward-compatibility alias
745 "*Controls highlighting of article headers.
747 An alist of the form (HEADER NAME CONTENT).
749 HEADER is a regular expression which should match the name of a
750 header and NAME and CONTENT are either face names or nil.
752 The name of each header field will be displayed using the face
753 specified by the first element in the list where HEADER matches
754 the header name and NAME is non-nil. Similarly, the content will
755 be displayed by the first non-nil matching CONTENT face."
768 article-decode-group-name article-decode-idna-rhs)
769 "*Hook run to decode charsets in articles."
774 "Function to display MIME articles."
804 "List of MIME types that should be ignored by Gnus."
810 "List of MIME types that should not be given buttons when rendered inline.
811 See also `gnus-buttonized-mime-types' which may override this variable.
812 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
818 "List of MIME types that should be given buttons when rendered inline.
819 If set, this variable overrides `gnus-unbuttonized-mime-types'.
820 To see e.g. security buttons you could set this to
822 This variable is only used when `gnus-inhibit-mime-unbuttonizing' is nil."
828 "If non-nil, all MIME parts get buttons.
829 When nil (the default value), then some MIME parts do not get buttons,
830 as described by the variables `gnus-buttonized-mime-types' and
831 `gnus-unbuttonized-mime-types'."
837 "String used to delimit header and body.
838 This variable is used by `gnus-article-treat-body-boundary' which can
839 be controlled by `gnus-treat-body-boundary'."
843 string))
846 "Defines the location of the faces database.
847 For information on obtaining this database of pretty pictures, please
848 see http://www.cs.indiana.edu/picons/ftp/index.html"
857 "Say whether picons are installed on your machine."
862 installed))
865 "Function called with a MIME handle as the argument.
866 This is meant for people who want to do something automatic based
867 on parts -- for instance, adding Vcard info to a database."
872 "An alist of MIME types to functions to display them."
878 "Whether the X-Sent and Date headers can coexist.
881 be added below it (otherwise)."
887 "Function called with a MIME handle as the argument.
888 This is meant for people who want to view first matched part.
889 For `undisplayed-alternative' (default), the first undisplayed
890 part or alternative part is used. For `undisplayed', the first
891 undisplayed part is used. For a function, the first part which
892 the function return t is used. For nil, the first part is
893 used."
915 "An alist of actions that run on the MIME attachment."
920 ;;;
921 ;;; The treatment variables
922 ;;;
947 "Highlight the signature.
948 Valid values are nil, t, `head', `last', an integer or a predicate.
949 See Info node `(gnus)Customizing Articles'."
956 "Add buttons.
957 Valid values are nil, t, `head', `last', an integer or a predicate.
958 See Info node `(gnus)Customizing Articles'."
965 "Add buttons to the head.
966 Valid values are nil, t, `head', `last', an integer or a predicate.
967 See Info node `(gnus)Customizing Articles' for details."
978 "Emphasize text.
979 Valid values are nil, t, `head', `last', an integer or a predicate.
980 See Info node `(gnus)Customizing Articles' for details."
987 "Remove carriage returns.
988 Valid values are nil, t, `head', `last', an integer or a predicate.
989 See Info node `(gnus)Customizing Articles' for details."
996 "Remove newlines from within URLs.
997 Valid values are nil, t, `head', `last', an integer or a predicate.
998 See Info node `(gnus)Customizing Articles' for details."
1005 "Remove leading whitespace in headers.
1006 Valid values are nil, t, `head', `last', an integer or a predicate.
1007 See Info node `(gnus)Customizing Articles' for details."
1014 "Hide headers.
1015 Valid values are nil, t, `head', `last', an integer or a predicate.
1016 See Info node `(gnus)Customizing Articles' for details."
1022 "Hide boring headers.
1023 Valid values are nil, t, `head', `last', an integer or a predicate.
1024 See Info node `(gnus)Customizing Articles' for details."
1030 "Hide the signature.
1031 Valid values are nil, t, `head', `last', an integer or a predicate.
1032 See Info node `(gnus)Customizing Articles' for details."
1038 "Fill the article.
1039 Valid values are nil, t, `head', `last', an integer or a predicate.
1040 See Info node `(gnus)Customizing Articles' for details."
1046 "Hide cited text.
1047 Valid values are nil, t, `head', `last', an integer or a predicate.
1048 See Info node `(gnus)Customizing Articles' for details."
1054 "Hide cited text.
1055 Valid values are nil, t, `head', `last', an integer or a predicate.
1056 See Info node `(gnus)Customizing Articles' for details."
1062 "Strip list identifiers from `gnus-list-identifiers`.
1063 Valid values are nil, t, `head', `last', an integer or a predicate.
1064 See Info node `(gnus)Customizing Articles' for details."
1074 "Strip PEM signatures.
1075 Valid values are nil, t, `head', `last', an integer or a predicate.
1076 See Info node `(gnus)Customizing Articles' for details."
1082 "Strip banners from articles.
1083 The banner to be stripped is specified in the `banner' group parameter.
1084 Valid values are nil, t, `head', `last', an integer or a predicate.
1085 See Info node `(gnus)Customizing Articles' for details."
1091 "Highlight the headers.
1092 Valid values are nil, t, `head', `last', an integer or a predicate.
1093 See Info node `(gnus)Customizing Articles' for details."
1100 "Highlight cited text.
1101 Valid values are nil, t, `head', `last', an integer or a predicate.
1102 See Info node `(gnus)Customizing Articles' for details."
1109 "Display the Date in UT (GMT).
1110 Valid values are nil, t, `head', `last', an integer or a predicate.
1111 See Info node `(gnus)Customizing Articles' for details."
1117 "Display the Date in the local timezone.
1118 Valid values are nil, t, `head', `last', an integer or a predicate.
1119 See Info node `(gnus)Customizing Articles' for details."
1125 "Display the Date in a format that can be read aloud in English.
1126 Valid values are nil, t, `head', `last', an integer or a predicate.
1127 See Info node `(gnus)Customizing Articles' for details."
1134 "Display the Date header in a way that says how much time has elapsed.
1135 Valid values are nil, t, `head', `last', an integer or a predicate.
1136 See Info node `(gnus)Customizing Articles' for details."
1142 "Display the date in the original timezone.
1143 Valid values are nil, t, `head', `last', an integer or a predicate.
1144 See Info node `(gnus)Customizing Articles' for details."
1150 "Display the date in the ISO8601 format.
1151 Valid values are nil, t, `head', `last', an integer or a predicate.
1152 See Info node `(gnus)Customizing Articles' for details."
1159 "Display the date in a user-defined format.
1160 The format is defined by the `gnus-article-time-format' variable.
1161 Valid values are nil, t, `head', `last', an integer or a predicate.
1162 See Info node `(gnus)Customizing Articles' for details."
1168 "Strip the X-No-Archive header line from the beginning of the body.
1169 Valid values are nil, t, `head', `last', an integer or a predicate.
1170 See Info node `(gnus)Customizing Articles' for details."
1177 "Strip trailing blank lines.
1178 Valid values are nil, t, `head', `last', an integer or a predicate.
1179 See Info node `(gnus)Customizing Articles' for details."
1185 "Strip leading blank lines.
1186 Valid values are nil, t, `head', `last', an integer or a predicate.
1187 See Info node `(gnus)Customizing Articles' for details."
1193 "Strip multiple blank lines.
1194 Valid values are nil, t, `head', `last', an integer or a predicate.
1195 See Info node `(gnus)Customizing Articles' for details."
1201 "Unfold folded header lines.
1202 Valid values are nil, t, `head', `last', an integer or a predicate.
1203 See Info node `(gnus)Customizing Articles' for details."
1210 "Fold headers.
1211 Valid values are nil, t, `head', `last', an integer or a predicate.
1212 See Info node `(gnus)Customizing Articles' for details."
1219 "Fold the Newsgroups and Followup-To headers.
1220 Valid values are nil, t, `head', `last', an integer or a predicate.
1221 See Info node `(gnus)Customizing Articles' for details."
1228 "Treat overstrike highlighting.
1229 Valid values are nil, t, `head', `last', an integer or a predicate.
1230 See Info node `(gnus)Customizing Articles' for details."
1248 "Display X-Face headers.
1249 Valid values are nil, t, `head', `last', an integer or a predicate.
1250 See Info node `(gnus)Customizing Articles' and Info node
1251 `(gnus)X-Face' for details."
1256 :type gnus-article-treat-head-custom
1259 symbol
1261 value)
1264 ** gnus-treat-display-xface is an obsolete variable;\
1269 ** gnus-treat-display-xface is an obsolete variable;\
1273 value)))))
1283 "Display Face headers.
1284 Valid values are nil, t, `head', `last', an integer or a predicate.
1285 See Info node `(gnus)Customizing Articles' and Info node
1286 `(gnus)X-Face' for details."
1299 t nil)
1300 "Display smileys.
1301 Valid values are nil, t, `head', `last', an integer or a predicate.
1302 See Info node `(gnus)Customizing Articles' and Info node
1303 `(gnus)Smileys' for details."
1315 "Display picons in the From header.
1316 Valid values are nil, t, `head', `last', an integer or a predicate.
1317 See Info node `(gnus)Customizing Articles' and Info node
1318 `(gnus)Picons' for details."
1331 "Display picons in To and Cc headers.
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 the Newsgroups and Followup-To 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."
1361 gnus-treat-mail-picon
1362 gnus-treat-from-picon)
1364 "Draw a boundary at the end of the headers.
1365 Valid values are nil and `head'.
1366 See Info node `(gnus)Customizing Articles' for details."
1373 "Capitalize sentence-starting words.
1374 Valid values are nil, t, `head', `last', an integer or a predicate.
1375 See Info node `(gnus)Customizing Articles' for details."
1382 "Format as HTML.
1383 Valid values are nil, t, `head', `last', an integer or a predicate.
1384 See Info node `(gnus)Customizing Articles' for details."
1391 "Fill long lines.
1392 Valid values are nil, t, `head', `last', an integer or a predicate.
1393 See Info node `(gnus)Customizing Articles' for details."
1399 "Play sounds.
1400 Valid values are nil, t, `head', `last', an integer or a predicate.
1401 See Info node `(gnus)Customizing Articles' for details."
1408 "Translate articles from one language to another.
1409 Valid values are nil, t, `head', `last', an integer or a predicate.
1410 See Info node `(gnus)Customizing Articles' for details."
1417 "Verify X-PGP-Sig.
1418 To automatically treat X-PGP-Sig, set it to head.
1419 Valid values are nil, t, `head', `last', an integer or a predicate.
1420 See Info node `(gnus)Customizing Articles' for details."
1430 ;; Set to nil if more than one protocol added to
1431 ;; gnus-article-encrypt-protocol-alist.
1433 "The protocol used for encrypt articles.
1445 "Whether IDNA decoding of headers is used when viewing messages.
1446 This requires GNU Libidn, and by default only enabled if it is found."
1452 "If non-nil, allow scrolling the article buffer even when there no more text."
1457 ;;; Internal variables
1500 gnus-article-remove-trailing-blank-lines)
1502 gnus-article-strip-leading-blank-lines)
1504 gnus-article-strip-multiple-blank-lines)
1526 ;; This causes the citation match run O(2^n).
1527 ;; (modify-syntax-entry ?- "w" table)
1530 ;; make M-. in article buffers work for `foo' strings
1533 table)
1534 "Syntax table used in article mode buffers.
1542 gnus-summary-mode-line-format-alist))
1550 ;;; Macros for dealing with the article buffer.
1575 "Go to HEADER, which is a regular expression."
1579 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
1587 "Remove hidden text properties from region between B and E."
1594 "Hide text of TYPE between B and E."
1600 "Unhide text of TYPE between B and E."
1609 "Hide text of TYPE in the current buffer."
1617 "Delete text of TYPE in the current buffer."
1626 "Delete all invisible text in the current buffer."
1635 "Say whether any text of type TYPE exists in the buffer."
1639 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1647 i))
1650 "Hide unwanted headers and possibly sort them as well."
1652 ;; This function might be inhibited.
1659 ignored visible beg)
1661 ;; `gnus-ignored-headers' and `gnus-visible-headers' may be
1662 ;; group parameters, so we should go to the summary buffer.
1669 gnus-ignored-headers)
1672 gnus-ignored-headers
1675 gnus-visible-headers)
1679 gnus-visible-headers
1683 ;; First we narrow to just the headers.
1685 ;; Hide any "From " lines at the beginning of (mail) articles.
1690 ;; Then treat the rest of the header lines.
1691 ;; Then we use the two regular expressions
1692 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1693 ;; select which header lines is to remain visible in the
1694 ;; article buffer.
1697 ;; Mark the rank of the header.
1709 ;; We delete the unwanted headers.
1716 "Toggle hiding of headers that aren't very interesting.
1717 If given a negative prefix, always show; if given a positive prefix,
1718 always hide."
1727 elem)
1733 ;; Hide empty headers.
1745 ;; Hide boring Newsgroups header.
1751 gnus-newsgroup-name
1763 ;; only one address in To
1765 to-address)))
1776 ;; only one address in To
1778 to-list)))
1789 ;; only one address in CC
1791 to-list)))
1806 from reply-to
1876 "Make all header lines 40 characters long."
1879 column)
1886 gnus-article-normalized-header-length)
1890 ? )))
1899 ;; Do nothing.
1900 ))
1904 "Translate M****s*** sm*rtq**t*s and other symbols into proper text.
1905 Note that this function guesses whether a character is a sm*rtq**t* or
1906 not, so it should only be used interactively.
1908 Sm*rtq**t*s are M****s***'s unilateral extension to the
1909 iso-8859-1 character map in an attempt to provide more quoting
1911 you're expecting some kind of apostrophe or quotation mark, then
1912 try this wash."
1917 "Translate all characters in the body of the article according to FROM and TO.
1918 FROM is a string of characters to translate from; to is a string of
1919 characters to translate to."
1934 "Translate all string in the body of the article according to MAP.
1939 elem)
1946 "Translate overstrikes into bold text."
1954 ;; We do the boldification/underlining by hiding the
1955 ;; overstrikes and putting the proper text property
1956 ;; on the letters.
1972 "Unfold folded message headers.
1973 Only the headers that fit into the current window width will be
1974 unfolded."
1994 "Fold message headers."
2017 "Remove all images from the article buffer."
2024 "Unfold folded message headers.
2025 Only the headers that fit into the current window width will be
2026 unfolded."
2038 "Place a boundary line at the end of the headers."
2055 "Fill lines that are wider than the window width."
2075 "Capitalize the first word in each sentence."
2086 "Remove trailing CRs and then translate remaining CRs into LFs."
2098 "Remove all trailing blank lines from the article."
2115 "Display any Face headers in the header."
2119 ;; When displaying parts, this function can be called several times on
2120 ;; the same article, without any intended toggle semantic (as typing `W
2121 ;; D d' would have). So face deletion must occur only when we come from
2122 ;; an interactive command, that is when the *Article* buffer is
2123 ;; read-only.
2140 image)
2150 )))
2153 "Look for an X-Face header and display it if present."
2157 ;; Delete the old process, if any.
2160 ;; See the comment in `article-display-face'.
2162 ;; We have already displayed X-Faces, so we remove them
2163 ;; instead.
2165 ;; Display X-Faces.
2174 ;; If type `W f', use gnus-original-article-buffer,
2175 ;; otherwise use the current buffer because displaying
2176 ;; RFC822 parts calls this function too.
2183 ;; Sending multiple EOFs to xv doesn't work, so we only do a
2184 ;; single external face.
2188 gnus-article-x-face-command
2190 ;; Check whether this face is censored.
2194 from)))))
2195 ;; We display the face.
2197 ;; The command is a string, so we interpret the command
2198 ;; as a, well, command, and fork it off.
2202 "article-x-face" nil shell-file-name
2203 shell-command-switch gnus-article-x-face-command)
2204 nil)
2211 ;; The command is a lisp function, so we call it.
2215 gnus-article-x-face-command)))))))))
2218 "Decode all MIME-encoded words in the article."
2227 gnus-newsgroup-ignored-charsets)))
2231 "Decode charset-encoded text in the article.
2232 If PROMPT (the prefix), prompt for a coding system to use."
2241 gnus-newsgroup-ignored-charsets))
2242 ct cte ctl charset format)
2266 ;; The text code could have been decoded.
2277 "Remove encoded-word encoding from headers."
2284 gnus-newsgroup-ignored-charsets))
2291 "Decode group names in `Newsgroups:'."
2296 gnus-group-name-charset-group-alist)
2306 ;; XXX how to use data in article buffer?
2310 nil t)
2312 gnus-newsgroup-name method))
2321 ;; XXX how to use data in article buffer?
2325 nil t)
2327 gnus-newsgroup-name method))
2333 "Decode IDNA strings in RHS in From:, To: and Cc: headers in current buffer."
2352 "Translate a quoted-printable-encoded article.
2353 If FORCE, decode the article whether it is marked as quoted-printable
2354 or not.
2355 If READ-CHARSET, ask for a coding system."
2383 "Translate a base64 article.
2384 If FORCE, decode the article whether it is marked as base64 not.
2385 If READ-CHARSET, ask for a coding system."
2419 "Translate a HZ-encoded article."
2427 "Remove the newlines that some other mailers insert into URLs."
2440 "Format an HTML article.
2441 If READ-CHARSET, ask for a coding system."
2445 charset)
2475 "Wash the current buffer with w3."
2486 "Wash the current buffer with emacs-w3m."
2491 w3m-force-redisplay)
2495 w3m-minor-mode-map)
2499 ;; Put the mark meaning this part was rendered by emacs-w3m.
2503 "Remove list identifies from the Subject header.
2504 The `gnus-list-identifiers' variable specifies what to do."
2509 gnus-list-identifiers))
2518 nil t)
2526 "Toggle hiding of any PEM headers and signatures in the current article.
2527 If given a negative prefix, always show; if given a positive prefix,
2528 always hide."
2534 ;; Hide the horrendously ugly "header".
2537 nil t)
2541 end
2546 ;; Hide the trailer as well
2548 nil t)
2553 "Strip the banners specified by the `banner' group parameter and by
2554 `gnus-article-address-banner-alist'."
2577 "Strip the banner specified by the argument."
2599 "Translate article using an online translation service."
2616 "Hide the signature in the current article.
2617 If given a negative prefix, always show; if given a positive prefix,
2618 always hide."
2630 "Strip offensive headers from bodies."
2639 "Remove all blank lines from the beginning of the article."
2650 "Narrow the buffer to the head of the message.
2651 Point is left at the beginning of the narrowed-to region."
2660 "Place point at the start of the body."
2663 ;; This variable is only bound when dealing with separate
2664 ;; MIME body parts.
2666 t)
2668 t)
2671 nil)))
2674 "Replace consecutive blank lines with one empty line."
2679 ;; First make all blank lines empty.
2685 ;; Then replace multiple empty lines with a single empty line.
2693 "Remove all white space from the beginning of the lines in the article."
2703 "Remove all white space from the end of the lines in the article."
2713 "Strip leading, trailing and multiple blank lines."
2720 "Strip all blank lines."
2730 "Narrow to the signature; return t if a signature is found, else nil."
2734 ;; Check whether we have some limits to what we consider
2735 ;; to be a signature.
2738 limit limited)
2750 limits nil)))
2753 t)))))
2756 "Search the current buffer for the signature separator.
2757 Put point at the beginning of the signature separator."
2766 seps))
2767 t
2769 nil)))
2772 "Return the current prefix arg as a number, or 0 if no prefix."
2778 "Return nil if hiding is necessary.
2779 Arg can be nil or a number. nil and positive means hide, negative
2780 means show, 0 means toggle."
2787 nil)
2790 t)
2795 t)
2796 nil)))))))
2799 "Say whether the current buffer contains hidden text of type TYPE."
2807 'hidden
2808 nil)))
2811 "Show all hidden text of type TYPE.
2812 Originally it is hide instead of DUMMY."
2816 'article-type type
2819 gnus-hidden-properties)))
2832 "Move point to the start of the next header.
2833 If the current header is a continuation header, this can be several
2834 lines forward."
2843 "Convert DATE date to universal time in the current article.
2844 If TYPE is `local', convert to local time; if it is `lapsed', output
2845 how much time has lapsed since DATE. For `lapsed', the value of
2851 tdate-regexp)
2857 tdate-regexp)))
2861 pos date bface eface)
2871 t))
2881 ;; Delete any old Date headers.
2902 ;; Do highlighting.
2914 "Return a DATE line of TYPE."
2920 ;; Convert to the local timezone.
2926 ;; Convert to Universal Time.
2938 ;; Get the original date from the article.
2942 date)))
2943 ;; Let the user define the format.
2947 gnus-article-time-format)
2949 gnus-article-time-format)))
2953 ;; ISO 8601.
2957 "Date: "
2962 ;; Do an X-Sent lapsed format.
2964 ;; If the date is seriously mangled, the timezone functions are
2965 ;; liable to bug out, so we ignore all errors.
2972 num prev)
2980 "X-Sent: "
2981 ;; This is a bit convoluted, but basically we go
2982 ;; through the time units for years, weeks, etc,
2983 ;; and divide things to see whether that results
2984 ;; in positive answers.
2988 ;; The (remaining) seconds are too few to
2989 ;; be divided into this time unit.
2990 ""
2991 ;; It's big enough, so we output it.
3000 ;; If dates are odd, then it might appear like the
3001 ;; article was sent in the future.
3003 " ago"
3005 ;; Display the date in proper English
3009 "Date: the "
3018 " of "
3020 " "
3022 " at "
3024 ":"
3030 "Convert the current article date to the local timezone."
3035 "Convert the current article date to something that is proper English."
3040 "Convert the current article date to what it was originally.
3041 This is only useful if you have used some other date conversion
3042 function and want to see what the date was before converting."
3047 "Convert the current article date to time lapsed since it was sent."
3052 "Function to be run from a timer to update the lapsed time line."
3070 "Start a timer to update the X-Sent header in the article buffers.
3071 The numerical prefix says how frequently (in seconds) the function
3072 is to run."
3081 "Stop the X-Sent timer."
3088 "Convert the current article date to the user-defined format.
3089 This format is defined by the `gnus-article-time-format' variable."
3094 "Convert the current article date to ISO8601."
3099 "Save the original date as a text property and evaluate FORMS."
3108 nil t))
3114 ,@forms
3119 ;; (defun article-show-all ()
3120 ;; "Show all hidden text in the article buffer."
3121 ;; (interactive)
3122 ;; (save-excursion
3123 ;; (let ((inhibit-read-only t))
3124 ;; (gnus-article-unhide-text (point-min) (point-max)))))
3127 "Remove excessive whitespace from all headers."
3138 "Emphasize text according to `gnus-emphasis-alist'."
3145 gnus-article-emphasis-alist)
3147 gnus-emphasis-alist))
3150 gnus-hidden-properties))
3151 regexp elem beg invisible visible face)
3172 "Setup newsgroup emphasis alist."
3184 highlight)
3189 gnus-emphasis-alist)))))
3195 ;;; Saving functions.
3198 "Save the currently selected article."
3200 ;; Remove headers according to `gnus-saved-headers'.
3210 ;; !!! Magic! The saving functions all save
3211 ;; `gnus-save-article-buffer' (or so they think), but we
3212 ;; bind that variable to our save-buffer.
3227 function group headers variable)
3230 result)
3235 default-name)
3237 default-name)
3246 gnus-number-of-articles-to-be-saved)
3249 ;; Let the split methods have their say.
3251 ;; No split name was found.
3257 default-name))
3258 ;; A single group name is returned.
3267 default-name))
3268 ;; A single split name was found
3272 gnus-article-save-directory))
3279 dir name)))
3280 ;; A list of splits was found.
3290 gnus-article-save-directory
3292 gnus-article-save-directory)))
3294 ;; Create the directory.
3296 ;; If we have read a directory, we append the default file name.
3299 default-name)
3301 ;; Possibly translate some characters.
3314 "If GROUP is an nndoc group, return the name of the parent group."
3319 "Append this article to Rmail file.
3320 Optional argument FILENAME specifies file name.
3321 Directory to save to is default to `gnus-article-save-directory'."
3323 "Save %s in rmail file:" filename
3324 gnus-rmail-save-name gnus-newsgroup-name
3331 filename)
3334 "Append this article to Unix mail file.
3335 Optional argument FILENAME specifies file name.
3336 Directory to save to is default to `gnus-article-save-directory'."
3338 "Save %s in Unix mail file:" filename
3339 gnus-mail-save-name gnus-newsgroup-name
3350 filename)
3353 "Append this article to file.
3354 Optional argument FILENAME specifies file name.
3355 Directory to save to is default to `gnus-article-save-directory'."
3357 "Save %s in file:" filename
3358 gnus-file-save-name gnus-newsgroup-name
3368 filename)
3371 "Write this article to a file, overwriting it if the file exists.
3372 Optional argument FILENAME specifies file name.
3373 The directory to save in defaults to `gnus-article-save-directory'."
3377 "Append this article body to a file.
3378 Optional argument FILENAME specifies file name.
3379 The directory to save in defaults to `gnus-article-save-directory'."
3381 "Save %s body in file:" filename
3382 gnus-file-save-name gnus-newsgroup-name
3391 filename)
3394 "Pipe this article to subprocess."
3397 gnus-last-shell-command)
3398 gnus-last-shell-command)
3400 command)
3403 "Shell command on %s: "
3407 gnus-number-of-articles-to-be-saved)
3409 gnus-last-shell-command))))
3421 default-value)
3422 "Like `read-string' but allow for older XEmacsen that don't have the 5th arg."
3429 "Pipe this article to muttprint."
3431 "Print using command: " gnus-summary-muttprint-program
3432 nil gnus-summary-muttprint-program))
3435 ;;; Article file names when saving.
3438 "Capitalize NEWSGROUP name."
3444 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
3445 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
3446 Otherwise, it is like ~/News/news/group/num."
3453 gnus-article-save-directory)))
3458 default
3462 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
3463 If variable `gnus-use-long-file-name' is non-nil, it is
3464 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
3468 newsgroup
3471 gnus-article-save-directory)))
3476 default
3480 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
3481 If variable `gnus-use-long-file-name' is non-nil, it is
3482 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
3486 newsgroup
3489 default-directory))
3490 gnus-article-save-directory)))
3493 "Generate file name from sender."
3499 gnus-article-save-directory)))
3502 "Verify X-PGP-Sig."
3507 items info headers)
3509 mml2015-use
3517 ;; Don't verify multiple headers.
3567 ;; Do highlighting.
3576 "Verify Cancel-Lock header."
3601 article-verify-x-pgp-sig
3602 article-verify-cancel-lock
3603 article-hide-boring-headers
3604 article-treat-overstrike
3605 article-fill-long-lines
3606 article-capitalize-sentences
3607 article-remove-cr
3608 article-remove-leading-whitespace
3609 article-display-x-face
3610 article-display-face
3611 article-de-quoted-unreadable
3612 article-de-base64-unreadable
3613 article-decode-HZ
3614 article-wash-html
3615 article-unsplit-urls
3616 article-hide-list-identifiers
3617 article-strip-banner
3618 article-babel
3619 article-hide-pem
3620 article-hide-signature
3621 article-strip-headers-in-body
3622 article-remove-trailing-blank-lines
3623 article-strip-leading-blank-lines
3624 article-strip-multiple-blank-lines
3625 article-strip-leading-space
3626 article-strip-trailing-space
3627 article-strip-blank-lines
3628 article-strip-all-blank-lines
3629 article-date-local
3630 article-date-english
3631 article-date-iso8601
3632 article-date-original
3633 article-date-ut
3634 article-decode-mime-words
3635 article-decode-charset
3636 article-decode-encoded-words
3637 article-date-user
3638 article-date-lapsed
3639 article-emphasize
3640 article-treat-dumbquotes
3641 article-normalize-headers
3642 ;; (article-show-all . gnus-article-show-all-headers)
3643 )))
3644 \f
3645 ;;;
3646 ;;; Gnus article mode
3647 ;;;
3654 " " gnus-article-goto-next-page
3656 [delete] gnus-article-goto-prev-page
3657 [backspace] gnus-article-goto-prev-page
3658 "\C-c^" gnus-article-refer-article
3659 "h" gnus-article-show-summary
3660 "s" gnus-article-show-summary
3661 "\C-c\C-m" gnus-article-mail
3662 "?" gnus-article-describe-briefly
3663 "e" gnus-summary-edit-article
3664 "<" beginning-of-buffer
3665 ">" end-of-buffer
3666 "\C-c\C-i" gnus-info-find-node
3667 "\C-c\C-b" gnus-bug
3668 "R" gnus-article-reply-with-original
3669 "F" gnus-article-followup-with-original
3670 "\C-hk" gnus-article-describe-key
3671 "\C-hc" gnus-article-describe-key-briefly
3673 "\C-d" gnus-article-read-summary-keys
3674 "\M-*" gnus-article-read-summary-keys
3675 "\M-#" gnus-article-read-summary-keys
3676 "\M-^" gnus-article-read-summary-keys
3677 "\M-g" gnus-article-read-summary-keys)
3679 (substitute-key-definition
3680 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
3682 (defun gnus-article-make-menu-bar ()
3683 (unless (boundp 'gnus-article-commands-menu)
3684 (gnus-summary-make-menu-bar))
3685 (gnus-turn-off-edit-menu 'article)
3686 (unless (boundp 'gnus-article-article-menu)
3687 (easy-menu-define
3688 gnus-article-article-menu gnus-article-mode-map ""
3689 '("Article"
3690 ["Scroll forwards" gnus-article-goto-next-page t]
3691 ["Scroll backwards" gnus-article-goto-prev-page t]
3692 ["Show summary" gnus-article-show-summary t]
3693 ["Fetch Message-ID at point" gnus-article-refer-article t]
3694 ["Mail to address at point" gnus-article-mail t]
3695 ["Send a bug report" gnus-bug t]))
3697 (easy-menu-define
3698 gnus-article-treatment-menu gnus-article-mode-map ""
3699 ;; Fixme: this should use :active (and maybe :visible).
3700 '("Treatment"
3701 ["Hide headers" gnus-article-hide-headers t]
3702 ["Hide signature" gnus-article-hide-signature t]
3703 ["Hide citation" gnus-article-hide-citation t]
3704 ["Treat overstrike" gnus-article-treat-overstrike t]
3705 ["Remove carriage return" gnus-article-remove-cr t]
3706 ["Remove leading whitespace" gnus-article-remove-leading-whitespace t]
3707 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
3708 ["Remove base64" gnus-article-de-base64-unreadable t]
3709 ["Treat html" gnus-article-wash-html t]
3710 ["Remove newlines from within URLs" gnus-article-unsplit-urls t]
3711 ["Decode HZ" gnus-article-decode-HZ t]))
3713 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
3715 ;; Note "Post" menu is defined in gnus-sum.el for consistency
3717 (gnus-run-hooks 'gnus-article-menu-hook)))
3719 (defun gnus-article-mode ()
3720 "Major mode for displaying an article.
3722 All normal editing commands are switched off.
3724 The following commands are available in addition to all summary mode
3725 commands:
3734 (interactive)
3735 (kill-all-local-variables)
3736 (gnus-simplify-mode-line)
3737 (setq mode-name "Article")
3738 (setq major-mode 'gnus-article-mode)
3739 (make-local-variable 'minor-mode-alist)
3740 (use-local-map gnus-article-mode-map)
3741 (when (gnus-visual-p 'article-menu 'menu)
3742 (gnus-article-make-menu-bar)
3743 (when gnus-summary-tool-bar-map
3744 (set (make-local-variable 'tool-bar-map) gnus-summary-tool-bar-map)))
3745 (gnus-update-format-specifications nil 'article-mode)
3746 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
3747 (set (make-local-variable 'gnus-page-broken) nil)
3748 (make-local-variable 'gnus-button-marker-list)
3749 (make-local-variable 'gnus-article-current-summary)
3750 (make-local-variable 'gnus-article-mime-handles)
3751 (make-local-variable 'gnus-article-decoded-p)
3752 (make-local-variable 'gnus-article-mime-handle-alist)
3753 (make-local-variable 'gnus-article-wash-types)
3754 (make-local-variable 'gnus-article-image-alist)
3755 (make-local-variable 'gnus-article-charset)
3756 (make-local-variable 'gnus-article-ignored-charsets)
3757 ;; Prevent recent Emacsen from displaying non-break space as "\ ".
3758 (set (make-local-variable 'nobreak-char-display) nil)
3759 (gnus-set-default-directory)
3760 (buffer-disable-undo)
3761 (setq buffer-read-only t)
3762 (set-syntax-table gnus-article-mode-syntax-table)
3763 (mm-enable-multibyte)
3764 (gnus-run-mode-hooks 'gnus-article-mode-hook))
3766 (defun gnus-article-setup-buffer ()
3767 "Initialize the article buffer."
3768 (let* ((name (if gnus-single-article-buffer "*Article*"
3769 (concat "*Article " gnus-newsgroup-name "*")))
3770 (original
3772 (concat " *Original Article"
3773 (substring name (match-end 0))))))
3774 (setq gnus-article-buffer name)
3775 (setq gnus-original-article-buffer original)
3776 (setq gnus-article-mime-handle-alist nil)
3777 ;; This might be a variable local to the summary buffer.
3778 (unless gnus-single-article-buffer
3779 (save-excursion
3780 (set-buffer gnus-summary-buffer)
3781 (setq gnus-article-buffer name)
3782 (setq gnus-original-article-buffer original)
3783 (gnus-set-global-variables)))
3784 (gnus-article-setup-highlight-words)
3785 ;; Init original article buffer.
3786 (save-excursion
3787 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
3788 (mm-enable-multibyte)
3789 (setq major-mode 'gnus-original-article-mode)
3790 (make-local-variable 'gnus-original-article))
3791 (if (and (get-buffer name)
3792 (with-current-buffer name
3793 (if gnus-article-edit-mode
3794 (if (y-or-n-p "Article mode edit in progress; discard? ")
3795 (progn
3796 (set-buffer-modified-p nil)
3797 (gnus-kill-buffer name)
3798 (message "")
3799 nil)
3800 (error "Action aborted"))
3801 t)))
3802 (save-excursion
3803 (set-buffer name)
3804 (set (make-local-variable 'gnus-article-edit-mode) nil)
3805 (when gnus-article-mime-handles
3806 (mm-destroy-parts gnus-article-mime-handles)
3807 (setq gnus-article-mime-handles nil))
3808 ;; Set it to nil in article-buffer!
3809 (setq gnus-article-mime-handle-alist nil)
3810 (buffer-disable-undo)
3811 (setq buffer-read-only t)
3812 ;; This list just keeps growing if we don't reset it.
3813 (setq gnus-button-marker-list nil)
3814 (unless (eq major-mode 'gnus-article-mode)
3815 (gnus-article-mode))
3816 (current-buffer))
3817 (save-excursion
3818 (set-buffer (gnus-get-buffer-create name))
3819 (gnus-article-mode)
3820 (make-local-variable 'gnus-summary-buffer)
3821 (gnus-summary-set-local-parameters gnus-newsgroup-name)
3822 (current-buffer)))))
3824 ;; Set article window start at LINE, where LINE is the number of lines
3825 ;; from the head of the article.
3826 (defun gnus-article-set-window-start (&optional line)
3827 (set-window-start
3828 (gnus-get-buffer-window gnus-article-buffer t)
3829 (save-excursion
3830 (set-buffer gnus-article-buffer)
3831 (goto-char (point-min))
3832 (if (not line)
3833 (point-min)
3834 (gnus-message 6 "Moved to bookmark")
3836 (forward-line line)
3837 (point)))))
3839 (defun gnus-article-prepare (article &optional all-headers header)
3840 "Prepare ARTICLE in article mode buffer.
3841 ARTICLE should either be an article number or a Message-ID.
3842 If ARTICLE is an id, HEADER should be the article headers.
3843 If ALL-HEADERS is non-nil, no headers are hidden."
3844 (save-excursion
3845 ;; Make sure we start in a summary buffer.
3846 (unless (eq major-mode 'gnus-summary-mode)
3847 (set-buffer gnus-summary-buffer))
3848 (setq gnus-summary-buffer (current-buffer))
3849 (let* ((gnus-article (if header (mail-header-number header) article))
3850 (summary-buffer (current-buffer))
3851 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
3852 (group gnus-newsgroup-name)
3853 result)
3854 (save-excursion
3855 (gnus-article-setup-buffer)
3856 (set-buffer gnus-article-buffer)
3857 ;; Deactivate active regions.
3858 (when (and (boundp 'transient-mark-mode)
3859 transient-mark-mode)
3860 (setq mark-active nil))
3861 (if (not (setq result (let ((inhibit-read-only t))
3862 (gnus-request-article-this-buffer
3863 article group))))
3864 ;; There is no such article.
3865 (save-excursion
3866 (when (and (numberp article)
3867 (not (memq article gnus-newsgroup-sparse)))
3868 (setq gnus-article-current
3869 (cons gnus-newsgroup-name article))
3870 (set-buffer gnus-summary-buffer)
3871 (setq gnus-current-article article)
3872 (if (and (memq article gnus-newsgroup-undownloaded)
3873 (not (gnus-online (gnus-find-method-for-group
3874 gnus-newsgroup-name))))
3875 (progn
3876 (gnus-summary-set-agent-mark article)
3877 (message "Message marked for downloading"))
3878 (gnus-summary-mark-article article gnus-canceled-mark)
3879 (unless (memq article gnus-newsgroup-sparse)
3880 (gnus-error 1 "No such article (may have expired or been canceled)")))))
3881 (if (or (eq result 'pseudo)
3882 (eq result 'nneething))
3883 (progn
3884 (save-excursion
3885 (set-buffer summary-buffer)
3886 (push article gnus-newsgroup-history)
3887 (setq gnus-last-article gnus-current-article
3888 gnus-current-article 0
3889 gnus-current-headers nil
3890 gnus-article-current nil)
3891 (if (eq result 'nneething)
3892 (gnus-configure-windows 'summary)
3893 (gnus-configure-windows 'article))
3894 (gnus-set-global-variables))
3895 (let ((gnus-article-mime-handle-alist-1
3896 gnus-article-mime-handle-alist))
3897 (gnus-set-mode-line 'article)))
3898 ;; The result from the `request' was an actual article -
3899 ;; or at least some text that is now displayed in the
3900 ;; article buffer.
3901 (when (and (numberp article)
3902 (not (eq article gnus-current-article)))
3903 ;; Seems like a new article has been selected.
3904 ;; `gnus-current-article' must be an article number.
3905 (save-excursion
3906 (set-buffer summary-buffer)
3907 (push article gnus-newsgroup-history)
3908 (setq gnus-last-article gnus-current-article
3909 gnus-current-article article
3910 gnus-current-headers
3911 (gnus-summary-article-header gnus-current-article)
3912 gnus-article-current
3913 (cons gnus-newsgroup-name gnus-current-article))
3914 (unless (vectorp gnus-current-headers)
3915 (setq gnus-current-headers nil))
3916 (gnus-summary-goto-subject gnus-current-article)
3917 (when (gnus-summary-show-thread)
3918 ;; If the summary buffer really was folded, the
3919 ;; previous goto may not actually have gone to
3920 ;; the right article, but the thread root instead.
3921 ;; So we go again.
3922 (gnus-summary-goto-subject gnus-current-article))
3923 (gnus-run-hooks 'gnus-mark-article-hook)
3924 (gnus-set-mode-line 'summary)
3925 (when (gnus-visual-p 'article-highlight 'highlight)
3926 (gnus-run-hooks 'gnus-visual-mark-article-hook))
3927 ;; Set the global newsgroup variables here.
3928 (gnus-set-global-variables)
3929 (setq gnus-have-all-headers
3930 (or all-headers gnus-show-all-headers))))
3931 (save-excursion
3932 (gnus-configure-windows 'article))
3933 (when (or (numberp article)
3934 (stringp article))
3935 (gnus-article-prepare-display)
3936 ;; Do page break.
3937 (goto-char (point-min))
3938 (when gnus-break-pages
3939 (gnus-narrow-to-page)))
3940 (let ((gnus-article-mime-handle-alist-1
3941 gnus-article-mime-handle-alist))
3942 (gnus-set-mode-line 'article))
3943 (article-goto-body)
3944 (unless (bobp)
3945 (forward-line -1))
3946 (set-window-point (get-buffer-window (current-buffer)) (point))
3947 (gnus-configure-windows 'article)
3948 t))))))
3950 ;;;###autoload
3951 (defun gnus-article-prepare-display ()
3952 "Make the current buffer look like a nice article."
3953 ;; Hooks for getting information from the article.
3954 ;; This hook must be called before being narrowed.
3955 (let ((gnus-article-buffer (current-buffer))
3956 buffer-read-only
3957 (inhibit-read-only t))
3958 (unless (eq major-mode 'gnus-article-mode)
3959 (gnus-article-mode))
3960 (setq buffer-read-only nil
3961 gnus-article-wash-types nil
3962 gnus-article-image-alist nil)
3963 (gnus-run-hooks 'gnus-tmp-internal-hook)
3964 (when gnus-display-mime-function
3965 (funcall gnus-display-mime-function))
3966 (gnus-run-hooks 'gnus-article-prepare-hook)))
3968 ;;;
3969 ;;; Gnus MIME viewing functions
3970 ;;;
3973 "Format of the MIME buttons.
3975 Valid specifiers include:
3976 %t The MIME type
3977 %T MIME type, along with additional info
3978 %n The `name' parameter
3979 %d The description, if any
3980 %l The length of the encoded part
3981 %p The part identifier number
3982 %e Dots if the part isn't displayed
3984 General format specifiers can also be used. See Info node
3985 `(gnus)Formatting Variables'.")
3987 (defvar gnus-mime-button-line-format-alist
3988 '((?t gnus-tmp-type ?s)
3989 (?T gnus-tmp-type-long ?s)
3990 (?n gnus-tmp-name ?s)
3991 (?d gnus-tmp-description ?s)
3992 (?p gnus-tmp-id ?s)
3993 (?l gnus-tmp-length ?d)
3994 (?e gnus-tmp-dots ?s)))
3996 (defvar gnus-mime-button-commands
3998 (gnus-mime-view-part "v" "View Interactively...")
3999 (gnus-mime-view-part-as-type "t" "View As Type...")
4000 (gnus-mime-view-part-as-charset "C" "View As charset...")
4001 (gnus-mime-save-part "o" "Save...")
4002 (gnus-mime-save-part-and-strip "\C-o" "Save and Strip")
4003 (gnus-mime-delete-part "d" "Delete part")
4004 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
4005 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
4006 (gnus-mime-view-part-internally "E" "View Internally")
4007 (gnus-mime-view-part-externally "e" "View Externally")
4008 (gnus-mime-print-part "p" "Print")
4009 (gnus-mime-pipe-part "|" "Pipe To Command...")
4010 (gnus-mime-action-on-part "." "Take action on the part...")))
4012 (defun gnus-article-mime-part-status ()
4013 (if gnus-article-mime-handle-alist-1
4014 (if (eq 1 (length gnus-article-mime-handle-alist-1))
4015 " (1 part)"
4016 (format " (%d parts)" (length gnus-article-mime-handle-alist-1)))
4017 ""))
4019 (defvar gnus-mime-button-map
4020 (let ((map (make-sparse-keymap)))
4021 (unless (>= (string-to-number emacs-version) 21)
4022 ;; XEmacs doesn't care.
4023 (set-keymap-parent map gnus-article-mode-map))
4024 (define-key map gnus-mouse-2 'gnus-article-push-button)
4025 (define-key map gnus-down-mouse-3 'gnus-mime-button-menu)
4026 (dolist (c gnus-mime-button-commands)
4027 (define-key map (cadr c) (car c)))
4028 map))
4030 (easy-menu-define
4031 gnus-mime-button-menu gnus-mime-button-map "MIME button menu."
4032 `("MIME Part"
4033 ,@(mapcar (lambda (c)
4034 (vector (caddr c) (car c) :enable t))
4035 gnus-mime-button-commands)))
4037 (eval-when-compile
4038 (define-compiler-macro popup-menu (&whole form
4039 menu &optional position prefix)
4040 (if (and (fboundp 'popup-menu)
4041 (not (memq 'popup-menu (assoc "lmenu" load-history))))
4042 form
4043 ;; Gnus is probably running under Emacs 20.
4044 `(let* ((menu (cdr ,menu))
4045 (response (x-popup-menu
4046 t (list (car menu)
4047 (cons "" (mapcar (lambda (c)
4048 (cons (caddr c) (car c)))
4049 (cdr menu)))))))
4050 (if response
4051 (call-interactively (nth 3 (assq response menu))))))))
4053 (defun gnus-mime-button-menu (event prefix)
4054 "Construct a context-sensitive menu of MIME commands."
4056 (save-window-excursion
4057 (let ((pos (event-start event)))
4058 (select-window (posn-window pos))
4059 (goto-char (posn-point pos))
4060 (gnus-article-check-buffer)
4061 (popup-menu gnus-mime-button-menu nil prefix))))
4063 (defun gnus-mime-view-all-parts (&optional handles)
4064 "View all the MIME parts."
4065 (interactive)
4066 (save-current-buffer
4067 (set-buffer gnus-article-buffer)
4068 (let ((handles (or handles gnus-article-mime-handles))
4069 (mail-parse-charset gnus-newsgroup-charset)
4070 (mail-parse-ignored-charsets
4071 (with-current-buffer gnus-summary-buffer
4072 gnus-newsgroup-ignored-charsets)))
4073 (when handles
4074 (mm-remove-parts handles)
4075 (goto-char (point-min))
4077 (let ((inhibit-read-only t))
4078 (delete-region (point) (point-max))
4079 (mm-display-parts handles))))))
4081 (defun gnus-mime-save-part-and-strip ()
4082 "Save the MIME part under point then replace it with an external body."
4083 (interactive)
4084 (gnus-article-check-buffer)
4085 (when (gnus-group-read-only-p)
4086 (error "The current group does not support deleting of parts"))
4087 (when (mm-complicated-handles gnus-article-mime-handles)
4088 (error "\
4089 The current article has a complicated MIME structure, giving up..."))
4090 (when (gnus-yes-or-no-p "\
4091 Deleting parts may malfunction or destroy the article; continue? ")
4092 (let* ((data (get-text-property (point) 'gnus-data))
4093 file param
4094 (handles gnus-article-mime-handles))
4095 (setq file (and data (mm-save-part data)))
4096 (when file
4097 (with-current-buffer (mm-handle-buffer data)
4098 (erase-buffer)
4099 (insert "Content-Type: " (mm-handle-media-type data))
4100 (mml-insert-parameter-string (cdr (mm-handle-type data))
4101 '(charset))
4106 (setcdr data
4107 (cdr (mm-make-handle nil
4108 `("message/external-body"
4109 (access-type . "LOCAL-FILE")
4110 (name . ,file)))))
4111 (set-buffer gnus-summary-buffer)
4112 (gnus-article-edit-article
4113 `(lambda ()
4114 (erase-buffer)
4115 (let ((mail-parse-charset (or gnus-article-charset
4116 ',gnus-newsgroup-charset))
4117 (mail-parse-ignored-charsets
4118 (or gnus-article-ignored-charsets
4119 ',gnus-newsgroup-ignored-charsets))
4120 (mbl mml-buffer-list))
4121 (setq mml-buffer-list nil)
4122 (insert-buffer gnus-original-article-buffer)
4123 (mime-to-mml ',handles)
4124 (setq gnus-article-mime-handles nil)
4125 (let ((mbl1 mml-buffer-list))
4126 (setq mml-buffer-list mbl)
4127 (set (make-local-variable 'mml-buffer-list) mbl1))
4128 (gnus-make-local-hook 'kill-buffer-hook)
4129 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
4130 `(lambda (no-highlight)
4131 (let ((mail-parse-charset (or gnus-article-charset
4132 ',gnus-newsgroup-charset))
4133 (message-options message-options)
4134 (message-options-set-recipient)
4135 (mail-parse-ignored-charsets
4136 (or gnus-article-ignored-charsets
4137 ',gnus-newsgroup-ignored-charsets)))
4138 (mml-to-mime)
4139 (mml-destroy-buffers)
4140 (remove-hook 'kill-buffer-hook
4141 'mml-destroy-buffers t)
4142 (kill-local-variable 'mml-buffer-list))
4143 (gnus-summary-edit-article-done
4144 ,(or (mail-header-references gnus-current-headers) "")
4145 ,(gnus-group-read-only-p)
4146 ,gnus-summary-buffer no-highlight)))))))
4148 (defun gnus-mime-delete-part ()
4149 "Delete the MIME part under point.
4150 Replace it with some information about the removed part."
4151 (interactive)
4152 (gnus-article-check-buffer)
4153 (when (gnus-group-read-only-p)
4154 (error "The current group does not support deleting of parts"))
4155 (when (mm-complicated-handles gnus-article-mime-handles)
4156 (error "\
4157 The current article has a complicated MIME structure, giving up..."))
4158 (when (gnus-yes-or-no-p "\
4159 Deleting parts may malfunction or destroy the article; continue? ")
4160 (let* ((data (get-text-property (point) 'gnus-data))
4161 (handles gnus-article-mime-handles)
4162 (none "(none)")
4163 (description
4164 (or
4165 (mail-decode-encoded-word-string (or (mm-handle-description data)
4166 none))))
4167 (filename
4168 (or (mail-content-type-get (mm-handle-disposition data) 'filename)
4169 none))
4170 (type (mm-handle-media-type data)))
4171 (unless data
4172 (error "No MIME part under point"))
4173 (with-current-buffer (mm-handle-buffer data)
4174 (let ((bsize (format "%s" (buffer-size))))
4175 (erase-buffer)
4176 (insert
4177 (concat
4186 (setcdr data
4187 (cdr (mm-make-handle
4188 nil `("text/plain") nil nil
4189 (list "attachment")
4190 (format "Deleted attachment (%s bytes)" bsize))))))
4191 (set-buffer gnus-summary-buffer)
4192 ;; FIXME: maybe some of the following code (borrowed from
4193 ;; `gnus-mime-save-part-and-strip') isn't necessary?
4194 (gnus-article-edit-article
4195 `(lambda ()
4196 (erase-buffer)
4197 (let ((mail-parse-charset (or gnus-article-charset
4198 ',gnus-newsgroup-charset))
4199 (mail-parse-ignored-charsets
4200 (or gnus-article-ignored-charsets
4201 ',gnus-newsgroup-ignored-charsets))
4202 (mbl mml-buffer-list))
4203 (setq mml-buffer-list nil)
4204 (insert-buffer gnus-original-article-buffer)
4205 (mime-to-mml ',handles)
4206 (setq gnus-article-mime-handles nil)
4207 (let ((mbl1 mml-buffer-list))
4208 (setq mml-buffer-list mbl)
4209 (set (make-local-variable 'mml-buffer-list) mbl1))
4210 (gnus-make-local-hook 'kill-buffer-hook)
4211 (add-hook 'kill-buffer-hook 'mml-destroy-buffers t t)))
4212 `(lambda (no-highlight)
4213 (let ((mail-parse-charset (or gnus-article-charset
4214 ',gnus-newsgroup-charset))
4215 (message-options message-options)
4216 (message-options-set-recipient)
4217 (mail-parse-ignored-charsets
4218 (or gnus-article-ignored-charsets
4219 ',gnus-newsgroup-ignored-charsets)))
4220 (mml-to-mime)
4221 (mml-destroy-buffers)
4222 (remove-hook 'kill-buffer-hook
4223 'mml-destroy-buffers t)
4224 (kill-local-variable 'mml-buffer-list))
4225 (gnus-summary-edit-article-done
4226 ,(or (mail-header-references gnus-current-headers) "")
4227 ,(gnus-group-read-only-p)
4228 ,gnus-summary-buffer no-highlight)))))
4229 ;; Not in `gnus-mime-save-part-and-strip':
4230 (gnus-article-edit-done)
4231 (gnus-summary-expand-window)
4232 (gnus-summary-show-article))
4234 (defun gnus-mime-save-part ()
4235 "Save the MIME part under point."
4236 (interactive)
4237 (gnus-article-check-buffer)
4238 (let ((data (get-text-property (point) 'gnus-data)))
4239 (when data
4240 (mm-save-part data))))
4242 (defun gnus-mime-pipe-part ()
4243 "Pipe the MIME part under point to a process."
4244 (interactive)
4245 (gnus-article-check-buffer)
4246 (let ((data (get-text-property (point) 'gnus-data)))
4247 (when data
4248 (mm-pipe-part data))))
4250 (defun gnus-mime-view-part ()
4251 "Interactively choose a viewing method for the MIME part under point."
4252 (interactive)
4253 (gnus-article-check-buffer)
4254 (let ((data (get-text-property (point) 'gnus-data)))
4255 (when data
4256 (setq gnus-article-mime-handles
4257 (mm-merge-handles
4258 gnus-article-mime-handles (setq data (copy-sequence data))))
4259 (mm-interactively-view-part data))))
4261 (defun gnus-mime-view-part-as-type-internal ()
4262 (gnus-article-check-buffer)
4263 (let* ((name (mail-content-type-get
4264 (mm-handle-type (get-text-property (point) 'gnus-data))
4265 'name))
4266 (def-type (and name (mm-default-file-encoding name))))
4267 (and def-type (cons def-type 0))))
4269 (defun gnus-mime-view-part-as-type (&optional mime-type)
4270 "Choose a MIME media type, and view the part as such."
4271 (interactive)
4272 (unless mime-type
4273 (setq mime-type (completing-read
4274 "View as MIME type: "
4275 (mapcar #'list (mailcap-mime-types))
4276 nil nil
4277 (gnus-mime-view-part-as-type-internal))))
4278 (gnus-article-check-buffer)
4279 (let ((handle (get-text-property (point) 'gnus-data)))
4280 (when handle
4281 (setq handle
4282 (mm-make-handle (mm-handle-buffer handle)
4283 (cons mime-type (cdr (mm-handle-type handle)))
4284 (mm-handle-encoding handle)
4285 (mm-handle-undisplayer handle)
4286 (mm-handle-disposition handle)
4287 (mm-handle-description handle)
4288 nil
4289 (mm-handle-id handle)))
4290 (setq gnus-article-mime-handles
4291 (mm-merge-handles gnus-article-mime-handles handle))
4292 (gnus-mm-display-part handle))))
4294 (eval-when-compile
4295 (require 'jka-compr))
4297 ;; jka-compr.el uses a "sh -c" to direct stderr to err-file, but these days
4298 ;; emacs can do that itself.
4299 ;;
4300 (defun gnus-mime-jka-compr-maybe-uncompress ()
4301 "Uncompress the current buffer if `auto-compression-mode' is enabled.
4302 The uncompress method used is derived from `buffer-file-name'."
4303 (when (and (fboundp 'jka-compr-installed-p)
4304 (jka-compr-installed-p))
4305 (let ((info (jka-compr-get-compression-info buffer-file-name)))
4306 (when info
4307 (let ((basename (file-name-nondirectory buffer-file-name))
4308 (args (jka-compr-info-uncompress-args info))
4309 (prog (jka-compr-info-uncompress-program info))
4310 (message (jka-compr-info-uncompress-message info))
4311 (err-file (jka-compr-make-temp-name)))
4312 (if message
4313 (message "%s %s..." message basename))
4314 (unwind-protect
4315 (unless (memq (apply 'call-process-region
4316 (point-min) (point-max)
4317 prog
4318 t (list t err-file) nil
4319 args)
4320 jka-compr-acceptable-retval-list)
4321 (jka-compr-error prog args basename message err-file))
4322 (jka-compr-delete-temp-file err-file)))))))
4324 (defun gnus-mime-copy-part (&optional handle)
4325 "Put the MIME part under point into a new buffer.
4326 If `auto-compression-mode' is enabled, compressed files like .gz and .bz2
4327 are decompressed."
4328 (interactive)
4329 (gnus-article-check-buffer)
4330 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4331 (contents (and handle (mm-get-part handle)))
4332 (base (and handle
4333 (file-name-nondirectory
4334 (or
4335 (mail-content-type-get (mm-handle-type handle) 'name)
4336 (mail-content-type-get (mm-handle-disposition handle)
4337 'filename)
4338 "*decoded*"))))
4339 (buffer (and base (generate-new-buffer base))))
4340 (when contents
4341 (switch-to-buffer buffer)
4342 (insert contents)
4343 ;; We do it this way to make `normal-mode' set the appropriate mode.
4344 (unwind-protect
4345 (progn
4346 (setq buffer-file-name (expand-file-name base))
4347 (gnus-mime-jka-compr-maybe-uncompress)
4348 (normal-mode))
4349 (setq buffer-file-name nil))
4350 (goto-char (point-min)))))
4352 (defun gnus-mime-print-part (&optional handle filename)
4353 "Print the MIME part under point."
4354 (interactive (list nil (ps-print-preprint current-prefix-arg)))
4355 (gnus-article-check-buffer)
4356 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4357 (contents (and handle (mm-get-part handle)))
4358 (file (mm-make-temp-file (expand-file-name "mm." mm-tmp-directory)))
4359 (printer (mailcap-mime-info (mm-handle-media-type handle) "print")))
4360 (when contents
4361 (if printer
4362 (unwind-protect
4363 (progn
4364 (mm-save-part-to-file handle file)
4365 (call-process shell-file-name nil
4366 (generate-new-buffer " *mm*")
4367 nil
4368 shell-command-switch
4369 (mm-mailcap-command
4370 printer file (mm-handle-type handle))))
4371 (delete-file file))
4372 (with-temp-buffer
4373 (insert contents)
4374 (gnus-print-buffer))
4375 (ps-despool filename)))))
4377 (defun gnus-mime-inline-part (&optional handle arg)
4378 "Insert the MIME part under point into the current buffer."
4379 (interactive (list nil current-prefix-arg))
4380 (gnus-article-check-buffer)
4381 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4382 contents charset
4383 (b (point))
4384 (inhibit-read-only t))
4385 (when handle
4386 (if (and (not arg) (mm-handle-undisplayer handle))
4387 (mm-remove-part handle)
4388 (setq contents (mm-get-part handle))
4389 (cond
4390 ((not arg)
4391 (setq charset (or (mail-content-type-get
4392 (mm-handle-type handle) 'charset)
4393 gnus-newsgroup-charset)))
4394 ((numberp arg)
4395 (if (mm-handle-undisplayer handle)
4396 (mm-remove-part handle))
4397 (setq charset
4398 (or (cdr (assq arg
4399 gnus-summary-show-article-charset-alist))
4400 (mm-read-coding-system "Charset: "))))
4401 (t
4402 (if (mm-handle-undisplayer handle)
4403 (mm-remove-part handle))))
4404 (forward-line 2)
4405 (mm-insert-inline
4406 handle
4407 (if (and charset
4408 (setq charset (mm-charset-to-coding-system
4409 charset))
4410 (not (eq charset 'ascii)))
4411 (mm-decode-coding-string contents charset)
4412 (mm-string-to-multibyte contents)))
4413 (goto-char b)))))
4415 (defun gnus-mime-view-part-as-charset (&optional handle arg)
4416 "Insert the MIME part under point into the current buffer using the
4417 specified charset."
4418 (interactive (list nil current-prefix-arg))
4419 (gnus-article-check-buffer)
4420 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4421 contents charset
4422 (b (point))
4423 (inhibit-read-only t))
4424 (when handle
4425 (if (mm-handle-undisplayer handle)
4426 (mm-remove-part handle))
4427 (let ((gnus-newsgroup-charset
4428 (or (cdr (assq arg
4429 gnus-summary-show-article-charset-alist))
4430 (mm-read-coding-system "Charset: ")))
4431 (gnus-newsgroup-ignored-charsets 'gnus-all))
4432 (gnus-article-press-button)))))
4434 (defun gnus-mime-view-part-externally (&optional handle)
4435 "View the MIME part under point with an external viewer."
4436 (interactive)
4437 (gnus-article-check-buffer)
4438 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4439 (mm-user-display-methods nil)
4440 (mm-inlined-types nil)
4441 (mail-parse-charset gnus-newsgroup-charset)
4442 (mail-parse-ignored-charsets
4443 (save-excursion (set-buffer gnus-summary-buffer)
4444 gnus-newsgroup-ignored-charsets)))
4445 (when handle
4446 (if (mm-handle-undisplayer handle)
4447 (mm-remove-part handle)
4448 (mm-display-part handle)))))
4450 (defun gnus-mime-view-part-internally (&optional handle)
4451 "View the MIME part under point with an internal viewer.
4452 If no internal viewer is available, use an external viewer."
4453 (interactive)
4454 (gnus-article-check-buffer)
4455 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
4456 (mm-inlined-types '(".*"))
4457 (mm-inline-large-images t)
4458 (mail-parse-charset gnus-newsgroup-charset)
4459 (mail-parse-ignored-charsets
4460 (save-excursion (set-buffer gnus-summary-buffer)
4461 gnus-newsgroup-ignored-charsets))
4462 (inhibit-read-only t))
4463 (when handle
4464 (if (mm-handle-undisplayer handle)
4465 (mm-remove-part handle)
4466 (mm-display-part handle)))))
4468 (defun gnus-mime-action-on-part (&optional action)
4469 "Do something with the MIME attachment at \(point\)."
4470 (interactive
4471 (list (completing-read "Action: " gnus-mime-action-alist nil t)))
4472 (gnus-article-check-buffer)
4473 (let ((action-pair (assoc action gnus-mime-action-alist)))
4474 (if action-pair
4475 (funcall (cdr action-pair)))))
4477 (defun gnus-article-part-wrapper (n function)
4478 (save-current-buffer
4479 (set-buffer gnus-article-buffer)
4480 (when (> n (length gnus-article-mime-handle-alist))
4481 (error "No such part"))
4482 (gnus-article-goto-part n)
4483 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
4484 (funcall function handle))))
4486 (defun gnus-article-pipe-part (n)
4487 "Pipe MIME part N, which is the numerical prefix."
4488 (interactive "p")
4489 (gnus-article-part-wrapper n 'mm-pipe-part))
4491 (defun gnus-article-save-part (n)
4492 "Save MIME part N, which is the numerical prefix."
4493 (interactive "p")
4494 (gnus-article-part-wrapper n 'mm-save-part))
4496 (defun gnus-article-interactively-view-part (n)
4497 "View MIME part N interactively, which is the numerical prefix."
4498 (interactive "p")
4499 (gnus-article-part-wrapper n 'mm-interactively-view-part))
4501 (defun gnus-article-copy-part (n)
4502 "Copy MIME part N, which is the numerical prefix."
4503 (interactive "p")
4504 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
4506 (defun gnus-article-view-part-as-charset (n)
4507 "View MIME part N using a specified charset.
4508 N is the numerical prefix."
4509 (interactive "p")
4510 (gnus-article-part-wrapper n 'gnus-mime-view-part-as-charset))
4512 (defun gnus-article-view-part-externally (n)
4513 "View MIME part N externally, which is the numerical prefix."
4514 (interactive "p")
4515 (gnus-article-part-wrapper n 'gnus-mime-view-part-externally))
4517 (defun gnus-article-inline-part (n)
4518 "Inline MIME part N, which is the numerical prefix."
4519 (interactive "p")
4520 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
4522 (defun gnus-article-mime-match-handle-first (condition)
4523 (if condition
4524 (let ((alist gnus-article-mime-handle-alist) ihandle n)
4525 (while (setq ihandle (pop alist))
4526 (if (and (cond
4527 ((functionp condition)
4528 (funcall condition (cdr ihandle)))
4529 ((eq condition 'undisplayed)
4530 (not (or (mm-handle-undisplayer (cdr ihandle))
4531 (equal (mm-handle-media-type (cdr ihandle))
4532 "multipart/alternative"))))
4533 ((eq condition 'undisplayed-alternative)
4534 (not (mm-handle-undisplayer (cdr ihandle))))
4535 (t t))
4536 (gnus-article-goto-part (car ihandle))
4537 (or (not n) (< (car ihandle) n)))
4538 (setq n (car ihandle))))
4539 (or n 1))
4540 1))
4542 (defun gnus-article-view-part (&optional n)
4543 "View MIME part N, which is the numerical prefix."
4544 (interactive "P")
4545 (save-current-buffer
4546 (set-buffer gnus-article-buffer)
4547 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
4548 gnus-article-mime-match-handle-function)))
4549 (when (> n (length gnus-article-mime-handle-alist))
4550 (error "No such part"))
4551 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
4552 (when (gnus-article-goto-part n)
4553 (if (equal (car handle) "multipart/alternative")
4554 (gnus-article-press-button)
4555 (when (eq (gnus-mm-display-part handle) 'internal)
4556 (gnus-set-window-start)))))))
4558 (defsubst gnus-article-mime-total-parts ()
4559 (if (bufferp (car gnus-article-mime-handles))
4560 1 ;; single part
4561 (1- (length gnus-article-mime-handles))))
4563 (defun gnus-mm-display-part (handle)
4564 "Display HANDLE and fix MIME button."
4565 (let ((id (get-text-property (point) 'gnus-part))
4566 (point (point))
4567 (inhibit-read-only t))
4568 (forward-line 1)
4569 (prog1
4570 (let ((window (selected-window))
4571 (mail-parse-charset gnus-newsgroup-charset)
4572 (mail-parse-ignored-charsets
4573 (if (gnus-buffer-live-p gnus-summary-buffer)
4574 (save-excursion
4575 (set-buffer gnus-summary-buffer)
4576 gnus-newsgroup-ignored-charsets)
4577 nil)))
4578 (save-excursion
4579 (unwind-protect
4580 (let ((win (gnus-get-buffer-window (current-buffer) t))
4581 (beg (point)))
4582 (when win
4583 (select-window win))
4584 (goto-char point)
4585 (forward-line)
4586 (if (mm-handle-displayed-p handle)
4587 ;; This will remove the part.
4588 (mm-display-part handle)
4589 (save-restriction
4590 (narrow-to-region (point)
4591 (if (eobp) (point) (1+ (point))))
4592 (mm-display-part handle)
4593 ;; We narrow to the part itself and
4594 ;; then call the treatment functions.
4595 (goto-char (point-min))
4596 (forward-line 1)
4597 (narrow-to-region (point) (point-max))
4598 (gnus-treat-article
4599 nil id
4600 (gnus-article-mime-total-parts)
4601 (mm-handle-media-type handle)))))
4602 (if (window-live-p window)
4603 (select-window window)))))
4604 (goto-char point)
4605 (gnus-delete-line)
4606 (gnus-insert-mime-button
4607 handle id (list (mm-handle-displayed-p handle)))
4608 (goto-char point))))
4610 (defun gnus-article-goto-part (n)
4611 "Go to MIME part N."
4612 (gnus-goto-char (text-property-any (point-min) (point-max) 'gnus-part n)))
4614 (defun gnus-insert-mime-button (handle gnus-tmp-id &optional displayed)
4615 (let ((gnus-tmp-name
4616 (or (mail-content-type-get (mm-handle-type handle) 'name)
4617 (mail-content-type-get (mm-handle-disposition handle) 'filename)
4618 (mail-content-type-get (mm-handle-type handle) 'url)
4619 ""))
4620 (gnus-tmp-type (mm-handle-media-type handle))
4621 (gnus-tmp-description
4622 (mail-decode-encoded-word-string (or (mm-handle-description handle)
4623 "")))
4624 (gnus-tmp-dots
4625 (if (if displayed (car displayed)
4626 (mm-handle-displayed-p handle))
4627 "" "..."))
4628 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
4629 (buffer-size)))
4630 gnus-tmp-type-long b e)
4631 (when (string-match ".*/" gnus-tmp-name)
4632 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
4633 (setq gnus-tmp-type-long (concat gnus-tmp-type
4634 (and (not (equal gnus-tmp-name ""))
4635 (concat "; " gnus-tmp-name))))
4636 (unless (equal gnus-tmp-description "")
4637 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
4638 (unless (bolp)
4640 (setq b (point))
4641 (gnus-eval-format
4642 gnus-mime-button-line-format gnus-mime-button-line-format-alist
4643 `(,@(gnus-local-map-property gnus-mime-button-map)
4644 gnus-callback gnus-mm-display-part
4645 gnus-part ,gnus-tmp-id
4646 article-type annotation
4647 gnus-data ,handle))
4648 (setq e (if (bolp)
4649 ;; Exclude a newline.
4650 (1- (point))
4651 (point)))
4652 (widget-convert-button
4653 'link b e
4654 :mime-handle handle
4655 :action 'gnus-widget-press-button
4656 :button-keymap gnus-mime-button-map
4657 :help-echo
4658 (lambda (widget/window &optional overlay pos)
4659 ;; Needed to properly clear the message due to a bug in
4660 ;; wid-edit (XEmacs only).
4661 (if (boundp 'help-echo-owns-message)
4662 (setq help-echo-owns-message t))
4663 (format
4664 "%S: %s the MIME part; %S: more options"
4665 (aref gnus-mouse-2 0)
4666 ;; XEmacs will get a single widget arg; Emacs 21 will get
4667 ;; window, overlay, position.
4668 (if (mm-handle-displayed-p
4669 (if overlay
4670 (with-current-buffer (gnus-overlay-buffer overlay)
4671 (widget-get (widget-at (gnus-overlay-start overlay))
4672 :mime-handle))
4673 (widget-get widget/window :mime-handle)))
4674 "hide" "show")
4675 (aref gnus-down-mouse-3 0))))))
4677 (defun gnus-widget-press-button (elems el)
4678 (goto-char (widget-get elems :from))
4679 (gnus-article-press-button))
4681 (defvar gnus-displaying-mime nil)
4683 (defun gnus-display-mime (&optional ihandles)
4684 "Display the MIME parts."
4685 (save-excursion
4686 (save-selected-window
4687 (let ((window (get-buffer-window gnus-article-buffer))
4688 (point (point)))
4689 (when window
4690 (select-window window)
4691 ;; We have to do this since selecting the window
4692 ;; may change the point. So we set the window point.
4693 (set-window-point window point)))
4694 (let* ((handles (or ihandles
4695 (mm-dissect-buffer nil gnus-article-loose-mime)
4696 (and gnus-article-emulate-mime
4697 (mm-uu-dissect))))
4698 (inhibit-read-only t) handle name type b e display)
4699 (when (and (not ihandles)
4700 (not gnus-displaying-mime))
4701 ;; Top-level call; we clean up.
4702 (when gnus-article-mime-handles
4703 (mm-destroy-parts gnus-article-mime-handles)
4704 (setq gnus-article-mime-handle-alist nil));; A trick.
4705 (setq gnus-article-mime-handles handles)
4706 ;; We allow users to glean info from the handles.
4707 (when gnus-article-mime-part-function
4708 (gnus-mime-part-function handles)))
4709 (if (and handles
4710 (or (not (stringp (car handles)))
4711 (cdr handles)))
4712 (progn
4713 (when (and (not ihandles)
4714 (not gnus-displaying-mime))
4715 ;; Clean up for mime parts.
4716 (article-goto-body)
4717 (delete-region (point) (point-max)))
4718 (let ((gnus-displaying-mime t))
4719 (gnus-mime-display-part handles)))
4720 (save-restriction
4721 (article-goto-body)
4722 (narrow-to-region (point) (point-max))
4723 (gnus-treat-article nil 1 1)
4724 (widen)))
4725 (unless ihandles
4726 ;; Highlight the headers.
4727 (save-excursion
4728 (save-restriction
4729 (article-goto-body)
4730 (narrow-to-region (point-min) (point))
4731 (gnus-article-save-original-date
4732 (gnus-treat-article 'head)))))))))
4734 (defcustom gnus-mime-display-multipart-as-mixed nil
4737 If t, it overrides nil values of
4738 `gnus-mime-display-multipart-alternative-as-mixed' and
4739 `gnus-mime-display-multipart-related-as-mixed'."
4740 :group 'gnus-article-mime
4741 :type 'boolean)
4743 (defcustom gnus-mime-display-multipart-alternative-as-mixed nil
4745 :version "22.1"
4746 :group 'gnus-article-mime
4747 :type 'boolean)
4749 (defcustom gnus-mime-display-multipart-related-as-mixed nil
4753 `mm-discouraged-alternatives'\) images or other material inside a
4755 :version "22.1"
4756 :group 'gnus-article-mime
4757 :type 'boolean)
4759 (defun gnus-mime-display-part (handle)
4760 (cond
4761 ;; Single part.
4762 ((not (stringp (car handle)))
4763 (gnus-mime-display-single handle))
4764 ;; User-defined multipart
4765 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
4766 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
4767 handle))
4768 ;; multipart/alternative
4769 ((and (equal (car handle) "multipart/alternative")
4770 (not (or gnus-mime-display-multipart-as-mixed
4771 gnus-mime-display-multipart-alternative-as-mixed)))
4772 (let ((id (1+ (length gnus-article-mime-handle-alist))))
4773 (push (cons id handle) gnus-article-mime-handle-alist)
4774 (gnus-mime-display-alternative (cdr handle) nil nil id)))
4775 ;; multipart/related
4776 ((and (equal (car handle) "multipart/related")
4777 (not (or gnus-mime-display-multipart-as-mixed
4778 gnus-mime-display-multipart-related-as-mixed)))
4779 ;;;!!!We should find the start part, but we just default
4780 ;;;!!!to the first part.
4781 ;;(gnus-mime-display-part (cadr handle))
4782 ;;;!!! Most multipart/related is an HTML message plus images.
4783 ;;;!!! Unfortunately we are unable to let W3 display those
4784 ;;;!!! included images, so we just display it as a mixed multipart.
4785 ;;(gnus-mime-display-mixed (cdr handle))
4786 ;;;!!! No, w3 can display everything just fine.
4787 (gnus-mime-display-part (cadr handle)))
4788 ((equal (car handle) "multipart/signed")
4789 (gnus-add-wash-type 'signed)
4790 (gnus-mime-display-security handle))
4791 ((equal (car handle) "multipart/encrypted")
4792 (gnus-add-wash-type 'encrypted)
4793 (gnus-mime-display-security handle))
4794 ;; Other multiparts are handled like multipart/mixed.
4795 (t
4796 (gnus-mime-display-mixed (cdr handle)))))
4798 (defun gnus-mime-part-function (handles)
4799 (if (stringp (car handles))
4800 (mapcar 'gnus-mime-part-function (cdr handles))
4801 (funcall gnus-article-mime-part-function handles)))
4803 (defun gnus-mime-display-mixed (handles)
4804 (mapcar 'gnus-mime-display-part handles))
4806 (defun gnus-mime-display-single (handle)
4807 (let ((type (mm-handle-media-type handle))
4808 (ignored gnus-ignored-mime-types)
4809 (not-attachment t)
4810 (move nil)
4811 display text)
4812 (catch 'ignored
4813 (progn
4814 (while ignored
4815 (when (string-match (pop ignored) type)
4816 (throw 'ignored nil)))
4817 (if (and (setq not-attachment
4818 (and (not (mm-inline-override-p handle))
4819 (or (not (mm-handle-disposition handle))
4820 (equal (car (mm-handle-disposition handle))
4821 "inline")
4822 (mm-attachment-override-p handle))))
4823 (mm-automatic-display-p handle)
4824 (or (and
4825 (mm-inlinable-p handle)
4826 (mm-inlined-p handle))
4827 (mm-automatic-external-display-p type)))
4828 (setq display t)
4829 (when (equal (mm-handle-media-supertype handle) "text")
4830 (setq text t)))
4831 (let ((id (1+ (length gnus-article-mime-handle-alist)))
4832 beg)
4833 (push (cons id handle) gnus-article-mime-handle-alist)
4834 (when (or (not display)
4835 (not (gnus-unbuttonized-mime-type-p type)))
4836 ;(gnus-article-insert-newline)
4837 (gnus-insert-mime-button
4838 handle id (list (or display (and not-attachment text))))
4839 (gnus-article-insert-newline)
4840 ;(gnus-article-insert-newline)
4841 ;; Remember modify the number of forward lines.
4842 (setq move t))
4843 (setq beg (point))
4844 (cond
4845 (display
4846 (when move
4847 (forward-line -1)
4848 (setq beg (point)))
4849 (let ((mail-parse-charset gnus-newsgroup-charset)
4850 (mail-parse-ignored-charsets
4851 (save-excursion (condition-case ()
4852 (set-buffer gnus-summary-buffer)
4853 (error))
4854 gnus-newsgroup-ignored-charsets)))
4855 (mm-display-part handle t))
4856 (goto-char (point-max)))
4857 ((and text not-attachment)
4858 (when move
4859 (forward-line -1)
4860 (setq beg (point)))
4861 (gnus-article-insert-newline)
4862 (mm-insert-inline handle (mm-get-part handle))
4863 (goto-char (point-max))))
4864 ;; Do highlighting.
4865 (save-excursion
4866 (save-restriction
4867 (narrow-to-region beg (point))
4868 (gnus-treat-article
4869 nil id
4870 (gnus-article-mime-total-parts)
4871 (mm-handle-media-type handle)))))))))
4873 (defun gnus-unbuttonized-mime-type-p (type)
4874 "Say whether TYPE is to be unbuttonized."
4875 (unless gnus-inhibit-mime-unbuttonizing
4876 (when (catch 'found
4877 (let ((types gnus-unbuttonized-mime-types))
4878 (while types
4879 (when (string-match (pop types) type)
4880 (throw 'found t)))))
4881 (not (catch 'found
4882 (let ((types gnus-buttonized-mime-types))
4883 (while types
4884 (when (string-match (pop types) type)
4885 (throw 'found t)))))))))
4887 (defun gnus-article-insert-newline ()
4888 "Insert a newline, but mark it as undeletable."
4889 (gnus-put-text-property
4892 (defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
4893 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
4894 (ihandles handles)
4895 (point (point))
4896 handle (inhibit-read-only t) from props begend not-pref)
4897 (save-window-excursion
4898 (save-restriction
4899 (when ibegend
4900 (narrow-to-region (car ibegend)
4901 (or (cdr ibegend)
4902 (progn
4903 (goto-char (car ibegend))
4904 (forward-line 2)
4905 (point))))
4906 (delete-region (point-min) (point-max))
4907 (mm-remove-parts handles))
4908 (setq begend (list (point-marker)))
4909 ;; Do the toggle.
4910 (unless (setq not-pref (cadr (member preferred ihandles)))
4911 (setq not-pref (car ihandles)))
4912 (when (or ibegend
4913 (not preferred)
4914 (not (gnus-unbuttonized-mime-type-p
4915 "multipart/alternative")))
4916 (gnus-add-text-properties
4917 (setq from (point))
4918 (progn
4919 (insert (format "%d. " id))
4920 (point))
4921 `(gnus-callback
4922 (lambda (handles)
4923 (unless ,(not ibegend)
4924 (setq gnus-article-mime-handle-alist
4925 ',gnus-article-mime-handle-alist))
4926 (gnus-mime-display-alternative
4927 ',ihandles ',not-pref ',begend ,id))
4928 ,@(gnus-local-map-property gnus-mime-button-map)
4929 ,gnus-mouse-face-prop ,gnus-article-mouse-face
4930 face ,gnus-article-button-face
4931 gnus-part ,id
4932 gnus-data ,handle))
4933 (widget-convert-button 'link from (point)
4934 :action 'gnus-widget-press-button
4935 :button-keymap gnus-widget-button-keymap)
4936 ;; Do the handles
4937 (while (setq handle (pop handles))
4938 (gnus-add-text-properties
4939 (setq from (point))
4940 (progn
4941 (insert (format "(%c) %-18s"
4942 (if (equal handle preferred) ?* ? )
4943 (mm-handle-media-type handle)))
4944 (point))
4945 `(gnus-callback
4946 (lambda (handles)
4947 (unless ,(not ibegend)
4948 (setq gnus-article-mime-handle-alist
4949 ',gnus-article-mime-handle-alist))
4950 (gnus-mime-display-alternative
4951 ',ihandles ',handle ',begend ,id))
4952 ,@(gnus-local-map-property gnus-mime-button-map)
4953 ,gnus-mouse-face-prop ,gnus-article-mouse-face
4954 face ,gnus-article-button-face
4955 gnus-part ,id
4956 gnus-data ,handle))
4957 (widget-convert-button 'link from (point)
4958 :action 'gnus-widget-press-button
4959 :button-keymap gnus-widget-button-keymap)
4960 (insert " "))
4962 (when preferred
4963 (if (stringp (car preferred))
4964 (gnus-display-mime preferred)
4965 (let ((mail-parse-charset gnus-newsgroup-charset)
4966 (mail-parse-ignored-charsets
4967 (save-excursion (set-buffer gnus-summary-buffer)
4968 gnus-newsgroup-ignored-charsets)))
4969 (mm-display-part preferred)
4970 ;; Do highlighting.
4971 (save-excursion
4972 (save-restriction
4973 (narrow-to-region (car begend) (point-max))
4974 (gnus-treat-article
4975 nil (length gnus-article-mime-handle-alist)
4976 (gnus-article-mime-total-parts)
4977 (mm-handle-media-type handle))))))
4978 (goto-char (point-max))
4979 (setcdr begend (point-marker)))))
4980 (when ibegend
4981 (goto-char point))))
4983 (defconst gnus-article-wash-status-strings
4984 (let ((alist '((cite "c" "Possible hidden citation text"
4985 " " "All citation text visible")
4986 (headers "h" "Hidden headers"
4987 " " "All headers visible.")
4988 (pgp "p" "Encrypted or signed message status hidden"
4989 " " "No hidden encryption nor digital signature status")
4990 (signature "s" "Signature has been hidden"
4991 " " "Signature is visible")
4992 (overstrike "o" "Overstrike (^H) characters applied"
4993 " " "No overstrike characters applied")
4994 (emphasis "e" "/*_Emphasis_*/ characters applied"
4995 " " "No /*_emphasis_*/ characters applied")))
4996 result)
4997 (dolist (entry alist result)
4998 (let ((key (nth 0 entry))
4999 (on (copy-sequence (nth 1 entry)))
5000 (on-help (nth 2 entry))
5001 (off (copy-sequence (nth 3 entry)))
5002 (off-help (nth 4 entry)))
5003 (put-text-property 0 1 'help-echo on-help on)
5004 (put-text-property 0 1 'help-echo off-help off)
5005 (push (list key on off) result))))
5006 "Alist of strings describing wash status in the mode line.
5007 Each entry has the form (KEY ON OF), where the KEY is a symbol
5008 representing the particular washing function, ON is the string to use
5009 in the article mode line when the washing function is active, and OFF
5010 is the string to use when it is inactive.")
5012 (defun gnus-article-wash-status-entry (key value)
5013 (let ((entry (assoc key gnus-article-wash-status-strings)))
5014 (if value (nth 1 entry) (nth 2 entry))))
5016 (defun gnus-article-wash-status ()
5017 "Return a string which display status of article washing."
5018 (save-excursion
5019 (set-buffer gnus-article-buffer)
5020 (let ((cite (memq 'cite gnus-article-wash-types))
5021 (headers (memq 'headers gnus-article-wash-types))
5022 (boring (memq 'boring-headers gnus-article-wash-types))
5023 (pgp (memq 'pgp gnus-article-wash-types))
5024 (pem (memq 'pem gnus-article-wash-types))
5025 (signed (memq 'signed gnus-article-wash-types))
5026 (encrypted (memq 'encrypted gnus-article-wash-types))
5027 (signature (memq 'signature gnus-article-wash-types))
5028 (overstrike (memq 'overstrike gnus-article-wash-types))
5029 (emphasis (memq 'emphasis gnus-article-wash-types)))
5030 (concat
5031 (gnus-article-wash-status-entry 'cite cite)
5032 (gnus-article-wash-status-entry 'headers (or headers boring))
5033 (gnus-article-wash-status-entry 'pgp (or pgp pem signed encrypted))
5034 (gnus-article-wash-status-entry 'signature signature)
5035 (gnus-article-wash-status-entry 'overstrike overstrike)
5036 (gnus-article-wash-status-entry 'emphasis emphasis)))))
5038 (defun gnus-add-wash-type (type)
5039 "Add a washing of TYPE to the current status."
5040 (add-to-list 'gnus-article-wash-types type))
5042 (defun gnus-delete-wash-type (type)
5043 "Add a washing of TYPE to the current status."
5044 (setq gnus-article-wash-types (delq type gnus-article-wash-types)))
5046 (defun gnus-add-image (category image)
5047 "Add IMAGE of CATEGORY to the list of displayed images."
5048 (let ((entry (assq category gnus-article-image-alist)))
5049 (unless entry
5050 (setq entry (list category))
5051 (push entry gnus-article-image-alist))
5052 (nconc entry (list image))))
5054 (defun gnus-delete-images (category)
5055 "Delete all images in CATEGORY."
5056 (let ((entry (assq category gnus-article-image-alist)))
5057 (dolist (image (cdr entry))
5058 (gnus-remove-image image category))
5059 (setq gnus-article-image-alist (delq entry gnus-article-image-alist))
5060 (gnus-delete-wash-type category)))
5062 (defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
5064 (defun gnus-article-maybe-hide-headers ()
5065 "Hide unwanted headers if `gnus-have-all-headers' is nil.
5066 Provided for backwards compatibility."
5067 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
5068 (not (save-excursion (set-buffer gnus-summary-buffer)
5069 gnus-have-all-headers)))
5070 (not gnus-inhibit-hiding))
5071 (gnus-article-hide-headers)))
5073 ;;; Article savers.
5075 (defun gnus-output-to-file (file-name)
5076 "Append the current article to a file named FILE-NAME."
5077 (let ((artbuf (current-buffer)))
5078 (with-temp-buffer
5079 (insert-buffer-substring artbuf)
5080 ;; Append newline at end of the buffer as separator, and then
5081 ;; save it to file.
5082 (goto-char (point-max))
5084 (let ((file-name-coding-system nnmail-pathname-coding-system))
5085 (mm-append-to-file (point-min) (point-max) file-name))
5086 t)))
5088 (defun gnus-narrow-to-page (&optional arg)
5089 "Narrow the article buffer to a page.
5090 If given a numerical ARG, move forward ARG pages."
5091 (interactive "P")
5092 (setq arg (if arg (prefix-numeric-value arg) 0))
5093 (save-excursion
5094 (set-buffer gnus-article-buffer)
5095 (goto-char (point-min))
5096 (widen)
5097 ;; Remove any old next/prev buttons.
5098 (when (gnus-visual-p 'page-marker)
5099 (let ((inhibit-read-only t))
5100 (gnus-remove-text-with-property 'gnus-prev)
5101 (gnus-remove-text-with-property 'gnus-next)))
5102 (if
5103 (cond ((< arg 0)
5104 (re-search-backward page-delimiter nil 'move (1+ (abs arg))))
5105 ((> arg 0)
5106 (re-search-forward page-delimiter nil 'move arg)))
5107 (goto-char (match-end 0))
5108 (save-excursion
5109 (goto-char (point-min))
5110 (setq gnus-page-broken
5111 (and (re-search-forward page-delimiter nil t) t))))
5112 (when gnus-page-broken
5113 (narrow-to-region
5114 (point)
5115 (if (re-search-forward page-delimiter nil 'move)
5116 (match-beginning 0)
5117 (point)))
5118 (when (and (gnus-visual-p 'page-marker)
5119 (> (point-min) (save-restriction (widen) (point-min))))
5120 (save-excursion
5121 (goto-char (point-min))
5122 (gnus-insert-prev-page-button)))
5123 (when (and (gnus-visual-p 'page-marker)
5124 (< (point-max) (save-restriction (widen) (point-max))))
5125 (save-excursion
5126 (goto-char (point-max))
5127 (gnus-insert-next-page-button))))))
5129 ;; Article mode commands
5131 (defun gnus-article-goto-next-page ()
5132 "Show the next page of the article."
5133 (interactive)
5134 (when (gnus-article-next-page)
5135 (goto-char (point-min))
5136 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
5139 (defun gnus-article-goto-prev-page ()
5140 "Show the previous page of the article."
5141 (interactive)
5142 (if (bobp)
5143 (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
5144 (gnus-article-prev-page nil)))
5146 ;; This is cleaner but currently breaks `gnus-pick-mode':
5147 ;;
5148 ;; (defun gnus-article-goto-next-page ()
5149 ;; "Show the next page of the article."
5150 ;; (interactive)
5151 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
5152 ;; (gnus-summary-next-page)))
5153 ;;
5154 ;; (defun gnus-article-goto-prev-page ()
5155 ;; "Show the next page of the article."
5156 ;; (interactive)
5157 ;; (gnus-eval-in-buffer-window gnus-summary-buffer
5158 ;; (gnus-summary-prev-page)))
5160 (defun gnus-article-next-page (&optional lines)
5161 "Show the next page of the current article.
5162 If end of article, return non-nil. Otherwise return nil.
5163 Argument LINES specifies lines to be scrolled up."
5164 (interactive "p")
5165 (move-to-window-line -1)
5166 (if (save-excursion
5167 (end-of-line)
5168 (and (pos-visible-in-window-p) ;Not continuation line.
5169 (>= (1+ (point)) (point-max)))) ;Allow for trailing newline.
5170 ;; Nothing in this page.
5171 (if (or (not gnus-page-broken)
5172 (save-excursion
5173 (save-restriction
5174 (widen)
5175 (forward-line)
5176 (eobp)))) ;Real end-of-buffer?
5177 (progn
5178 (when gnus-article-over-scroll
5179 (gnus-article-next-page-1 lines))
5180 t) ;Nothing more.
5181 (gnus-narrow-to-page 1) ;Go to next page.
5182 nil)
5183 ;; More in this page.
5184 (gnus-article-next-page-1 lines)
5185 nil))
5187 (defun gnus-article-next-page-1 (lines)
5188 (let ((scroll-in-place nil))
5189 (condition-case ()
5190 (scroll-up lines)
5191 (end-of-buffer
5192 ;; Long lines may cause an end-of-buffer error.
5193 (goto-char (point-max)))))
5194 (move-to-window-line 0))
5196 (defun gnus-article-prev-page (&optional lines)
5197 "Show previous page of current article.
5198 Argument LINES specifies lines to be scrolled down."
5199 (interactive "p")
5200 (move-to-window-line 0)
5201 (if (and gnus-page-broken
5202 (bobp)
5203 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
5204 (progn
5205 (gnus-narrow-to-page -1) ;Go to previous page.
5206 (goto-char (point-max))
5207 (recenter -1))
5208 (let ((scroll-in-place nil))
5209 (prog1
5210 (condition-case ()
5211 (scroll-down lines)
5212 (beginning-of-buffer
5213 (goto-char (point-min))))
5214 (move-to-window-line 0)))))
5216 (defun gnus-article-only-boring-p ()
5217 "Decide whether there is only boring text remaining in the article.
5219 not have a face in `gnus-article-boring-faces'."
5220 (when (and gnus-article-skip-boring
5221 (boundp 'gnus-article-boring-faces)
5222 (symbol-value 'gnus-article-boring-faces))
5223 (save-excursion
5224 (catch 'only-boring
5226 (forward-char -1)
5227 (when (not (gnus-intersection
5228 (gnus-faces-at (point))
5229 (symbol-value 'gnus-article-boring-faces)))
5230 (throw 'only-boring nil)))
5231 (throw 'only-boring t)))))
5233 (defun gnus-article-refer-article ()
5234 "Read article specified by message-id around point."
5235 (interactive)
5236 (save-excursion
5240 (let ((msg-id (concat "<" (match-string 0) ">")))
5241 (set-buffer gnus-summary-buffer)
5242 (gnus-summary-refer-article msg-id))
5243 (error "No references around point"))))
5245 (defun gnus-article-show-summary ()
5246 "Reconfigure windows to show summary buffer."
5247 (interactive)
5248 (if (not (gnus-buffer-live-p gnus-summary-buffer))
5249 (error "There is no summary buffer for this article buffer")
5250 (gnus-article-set-globals)
5251 (gnus-configure-windows 'article)
5252 (gnus-summary-goto-subject gnus-current-article)
5253 (gnus-summary-position-point)))
5255 (defun gnus-article-describe-briefly ()
5256 "Describe article mode commands briefly."
5257 (interactive)
5258 (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")))
5260 (defun gnus-article-summary-command ()
5261 "Execute the last keystroke in the summary buffer."
5262 (interactive)
5263 (let ((obuf (current-buffer))
5264 (owin (current-window-configuration))
5265 func)
5266 (switch-to-buffer gnus-article-current-summary 'norecord)
5267 (setq func (lookup-key (current-local-map) (this-command-keys)))
5268 (call-interactively func)
5269 (set-buffer obuf)
5270 (set-window-configuration owin)
5271 (set-window-point (get-buffer-window (current-buffer)) (point))))
5273 (defun gnus-article-summary-command-nosave ()
5274 "Execute the last keystroke in the summary buffer."
5275 (interactive)
5276 (let (func)
5277 (pop-to-buffer gnus-article-current-summary 'norecord)
5278 (setq func (lookup-key (current-local-map) (this-command-keys)))
5279 (call-interactively func)))
5281 (defun gnus-article-check-buffer ()
5282 "Beep if not in an article buffer."
5283 (unless (equal major-mode 'gnus-article-mode)
5284 (error "Command invoked outside of a Gnus article buffer")))
5286 (defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
5287 "Read a summary buffer key sequence and execute it from the article buffer."
5288 (interactive "P")
5289 (gnus-article-check-buffer)
5290 (let ((nosaves
5291 '("q" "Q" "c" "r" "\C-c\C-f" "m" "a" "f"
5292 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
5293 "=" "^" "\M-^" "|"))
5294 (nosave-but-article
5296 (nosave-in-article
5297 '("\C-d"))
5298 (up-to-top
5299 '("n" "Gn" "p" "Gp"))
5300 keys new-sum-point)
5301 (save-excursion
5302 (set-buffer gnus-article-current-summary)
5303 (let (gnus-pick-mode)
5304 (push (or key last-command-event) unread-command-events)
5305 (setq keys (if (featurep 'xemacs)
5306 (events-to-keys (read-key-sequence nil))
5307 (read-key-sequence nil)))))
5309 (message "")
5311 (if (or (member keys nosaves)
5312 (member keys nosave-but-article)
5313 (member keys nosave-in-article))
5314 (let (func)
5315 (save-window-excursion
5316 (pop-to-buffer gnus-article-current-summary 'norecord)
5317 ;; We disable the pick minor mode commands.
5318 (let (gnus-pick-mode)
5319 (setq func (lookup-key (current-local-map) keys))))
5320 (if (or (not func)
5321 (numberp func))
5322 (ding)
5323 (unless (member keys nosave-in-article)
5324 (set-buffer gnus-article-current-summary))
5325 (call-interactively func)
5326 (setq new-sum-point (point)))
5327 (when (member keys nosave-but-article)
5328 (pop-to-buffer gnus-article-buffer 'norecord)))
5329 ;; These commands should restore window configuration.
5330 (let ((obuf (current-buffer))
5331 (owin (current-window-configuration))
5332 (opoint (point))
5333 win func in-buffer selected new-sum-start new-sum-hscroll)
5334 (cond (not-restore-window
5335 (pop-to-buffer gnus-article-current-summary 'norecord))
5336 ((setq win (get-buffer-window gnus-article-current-summary))
5337 (select-window win))
5338 (t
5339 (switch-to-buffer gnus-article-current-summary 'norecord)))
5340 (setq in-buffer (current-buffer))
5341 ;; We disable the pick minor mode commands.
5342 (if (and (setq func (let (gnus-pick-mode)
5343 (lookup-key (current-local-map) keys)))
5344 (functionp func))
5345 (progn
5346 (call-interactively func)
5347 (when (eq win (selected-window))
5348 (setq new-sum-point (point)
5349 new-sum-start (window-start win)
5350 new-sum-hscroll (window-hscroll win)))
5351 (when (eq in-buffer (current-buffer))
5352 (setq selected (gnus-summary-select-article))
5353 (set-buffer obuf)
5354 (unless not-restore-window
5355 (set-window-configuration owin))
5356 (when (eq selected 'old)
5357 (article-goto-body)
5358 (set-window-start (get-buffer-window (current-buffer))
5359 1)
5360 (set-window-point (get-buffer-window (current-buffer))
5361 (point)))
5362 (when (and (not not-restore-window)
5363 new-sum-point)
5364 (set-window-point win new-sum-point)
5365 (set-window-start win new-sum-start)
5366 (set-window-hscroll win new-sum-hscroll))))
5367 (set-window-configuration owin)
5368 (ding))))))
5370 (defun gnus-article-describe-key (key)
5371 "Display documentation of the function invoked by KEY. KEY is a string."
5372 (interactive "kDescribe key: ")
5373 (gnus-article-check-buffer)
5374 (if (eq (key-binding key) 'gnus-article-read-summary-keys)
5375 (save-excursion
5376 (set-buffer gnus-article-current-summary)
5377 (let (gnus-pick-mode)
5378 (if (featurep 'xemacs)
5379 (progn
5380 (push (elt key 0) unread-command-events)
5381 (setq key (events-to-keys
5382 (read-key-sequence "Describe key: "))))
5383 (setq unread-command-events
5384 (mapcar
5385 (lambda (x) (if (>= x 128) (list 'meta (- x 128)) x))
5386 (string-to-list key)))
5387 (setq key (read-key-sequence "Describe key: "))))
5388 (describe-key key))
5389 (describe-key key)))
5391 (defun gnus-article-describe-key-briefly (key &optional insert)
5392 "Display documentation of the function invoked by KEY. KEY is a string."
5394 (gnus-article-check-buffer)
5395 (if (eq (key-binding key) 'gnus-article-read-summary-keys)
5396 (save-excursion
5397 (set-buffer gnus-article-current-summary)
5398 (let (gnus-pick-mode)
5399 (if (featurep 'xemacs)
5400 (progn
5401 (push (elt key 0) unread-command-events)
5402 (setq key (events-to-keys
5403 (read-key-sequence "Describe key: "))))
5404 (setq unread-command-events
5405 (mapcar
5406 (lambda (x) (if (>= x 128) (list 'meta (- x 128)) x))
5407 (string-to-list key)))
5408 (setq key (read-key-sequence "Describe key: "))))
5409 (describe-key-briefly key insert))
5410 (describe-key-briefly key insert)))
5412 (defun gnus-article-reply-with-original (&optional wide)
5413 "Start composing a reply mail to the current message.
5414 The text in the region will be yanked. If the region isn't active,
5415 the entire article will be yanked."
5416 (interactive "P")
5417 (let ((article (cdr gnus-article-current))
5418 contents)
5419 (if (not (gnus-mark-active-p))
5420 (with-current-buffer gnus-summary-buffer
5421 (gnus-summary-reply (list (list article)) wide))
5422 (setq contents (buffer-substring (point) (mark t)))
5423 ;; Deactivate active regions.
5424 (when (and (boundp 'transient-mark-mode)
5425 transient-mark-mode)
5426 (setq mark-active nil))
5427 (with-current-buffer gnus-summary-buffer
5428 (gnus-summary-reply
5429 (list (list article contents)) wide)))))
5431 (defun gnus-article-followup-with-original ()
5432 "Compose a followup to the current article.
5433 The text in the region will be yanked. If the region isn't active,
5434 the entire article will be yanked."
5435 (interactive)
5436 (let ((article (cdr gnus-article-current))
5437 contents)
5438 (if (not (gnus-mark-active-p))
5439 (with-current-buffer gnus-summary-buffer
5440 (gnus-summary-followup (list (list article))))
5441 (setq contents (buffer-substring (point) (mark t)))
5442 ;; Deactivate active regions.
5443 (when (and (boundp 'transient-mark-mode)
5444 transient-mark-mode)
5445 (setq mark-active nil))
5446 (with-current-buffer gnus-summary-buffer
5447 (gnus-summary-followup
5448 (list (list article contents)))))))
5450 (defun gnus-article-hide (&optional arg force)
5451 "Hide all the gruft in the current article.
5452 This means that signatures, cited text and (some) headers will be
5453 hidden.
5454 If given a prefix, show the hidden text instead."
5455 (interactive (append (gnus-article-hidden-arg) (list 'force)))
5456 (gnus-article-hide-headers arg)
5457 (gnus-article-hide-list-identifiers arg)
5458 (gnus-article-hide-citation-maybe arg force)
5459 (gnus-article-hide-signature arg))
5461 (defun gnus-article-maybe-highlight ()
5462 "Do some article highlighting if article highlighting is requested."
5463 (when (gnus-visual-p 'article-highlight 'highlight)
5464 (gnus-article-highlight-some)))
5466 (defun gnus-check-group-server ()
5467 ;; Make sure the connection to the server is alive.
5468 (unless (gnus-server-opened
5469 (gnus-find-method-for-group gnus-newsgroup-name))
5470 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
5471 (gnus-request-group gnus-newsgroup-name t)))
5473 (eval-when-compile
5474 (autoload 'nneething-get-file-name "nneething"))
5476 (defun gnus-request-article-this-buffer (article group)
5477 "Get an article and insert it into this buffer."
5478 (let (do-update-line sparse-header)
5479 (prog1
5480 (save-excursion
5481 (erase-buffer)
5482 (gnus-kill-all-overlays)
5483 (setq group (or group gnus-newsgroup-name))
5485 ;; Using `gnus-request-article' directly will insert the article into
5486 ;; `nntp-server-buffer' - so we'll save some time by not having to
5487 ;; copy it from the server buffer into the article buffer.
5489 ;; We only request an article by message-id when we do not have the
5490 ;; headers for it, so we'll have to get those.
5491 (when (stringp article)
5492 (gnus-read-header article))
5494 ;; If the article number is negative, that means that this article
5495 ;; doesn't belong in this newsgroup (possibly), so we find its
5496 ;; message-id and request it by id instead of number.
5497 (when (and (numberp article)
5498 gnus-summary-buffer
5499 (get-buffer gnus-summary-buffer)
5500 (gnus-buffer-exists-p gnus-summary-buffer))
5501 (save-excursion
5502 (set-buffer gnus-summary-buffer)
5503 (let ((header (gnus-summary-article-header article)))
5504 (when (< article 0)
5505 (cond
5506 ((memq article gnus-newsgroup-sparse)
5507 ;; This is a sparse gap article.
5508 (setq do-update-line article)
5509 (setq article (mail-header-id header))
5510 (setq sparse-header (gnus-read-header article))
5511 (setq gnus-newsgroup-sparse
5512 (delq article gnus-newsgroup-sparse)))
5513 ((vectorp header)
5514 ;; It's a real article.
5515 (setq article (mail-header-id header)))
5516 (t
5517 ;; It is an extracted pseudo-article.
5518 (setq article 'pseudo)
5519 (gnus-request-pseudo-article header))))
5521 (let ((method (gnus-find-method-for-group
5522 gnus-newsgroup-name)))
5523 (when (and (eq (car method) 'nneething)
5524 (vectorp header))
5525 (let ((dir (nneething-get-file-name
5526 (mail-header-id header))))
5527 (when (and (stringp dir)
5528 (file-directory-p dir))
5529 (setq article 'nneething)
5530 (gnus-group-enter-directory dir))))))))
5532 (cond
5533 ;; Refuse to select canceled articles.
5534 ((and (numberp article)
5535 gnus-summary-buffer
5536 (get-buffer gnus-summary-buffer)
5537 (gnus-buffer-exists-p gnus-summary-buffer)
5538 (eq (cdr (save-excursion
5539 (set-buffer gnus-summary-buffer)
5540 (assq article gnus-newsgroup-reads)))
5541 gnus-canceled-mark))
5542 nil)
5543 ;; We first check `gnus-original-article-buffer'.
5544 ((and (get-buffer gnus-original-article-buffer)
5545 (numberp article)
5546 (save-excursion
5547 (set-buffer gnus-original-article-buffer)
5548 (and (equal (car gnus-original-article) group)
5549 (eq (cdr gnus-original-article) article))))
5550 (insert-buffer-substring gnus-original-article-buffer)
5551 'article)
5552 ;; Check the backlog.
5553 ((and gnus-keep-backlog
5554 (gnus-backlog-request-article group article (current-buffer)))
5555 'article)
5556 ;; Check asynchronous pre-fetch.
5557 ((gnus-async-request-fetched-article group article (current-buffer))
5558 (gnus-async-prefetch-next group article gnus-summary-buffer)
5559 (when (and (numberp article) gnus-keep-backlog)
5560 (gnus-backlog-enter-article group article (current-buffer)))
5561 'article)
5562 ;; Check the cache.
5563 ((and gnus-use-cache
5564 (numberp article)
5565 (gnus-cache-request-article article group))
5566 'article)
5567 ;; Check the agent cache.
5568 ((gnus-agent-request-article article group)
5569 'article)
5570 ;; Get the article and put into the article buffer.
5571 ((or (stringp article)
5572 (numberp article))
5573 (let ((gnus-override-method gnus-override-method)
5574 (methods (and (stringp article)
5575 gnus-refer-article-method))
5576 (backend (car (gnus-find-method-for-group
5577 gnus-newsgroup-name)))
5578 result
5579 (inhibit-read-only t))
5580 (if (or (not (listp methods))
5581 (and (symbolp (car methods))
5582 (assq (car methods) nnoo-definition-alist)))
5583 (setq methods (list methods)))
5584 (when (and (null gnus-override-method)
5585 methods)
5586 (setq gnus-override-method (pop methods)))
5587 (while (not result)
5588 (when (eq gnus-override-method 'current)
5589 (setq gnus-override-method
5590 (with-current-buffer gnus-summary-buffer
5591 gnus-current-select-method)))
5592 (erase-buffer)
5593 (gnus-kill-all-overlays)
5594 (let ((gnus-newsgroup-name group))
5595 (gnus-check-group-server))
5596 (cond
5597 ((gnus-request-article article group (current-buffer))
5598 (when (numberp article)
5599 (gnus-async-prefetch-next group article
5600 gnus-summary-buffer)
5601 (when gnus-keep-backlog
5602 (gnus-backlog-enter-article
5603 group article (current-buffer))))
5604 (setq result 'article))
5605 (methods
5606 (setq gnus-override-method (pop methods)))
5607 ((not (string-match "^400 "
5608 (nnheader-get-report backend)))
5609 ;; If we get 400 server disconnect, reconnect and
5610 ;; retry; otherwise, assume the article has expired.
5611 (setq result 'done))))
5612 (and (eq result 'article) 'article)))
5613 ;; It was a pseudo.
5614 (t article)))
5616 ;; Associate this article with the current summary buffer.
5617 (setq gnus-article-current-summary gnus-summary-buffer)
5619 ;; Take the article from the original article buffer
5620 ;; and place it in the buffer it's supposed to be in.
5621 (when (and (get-buffer gnus-article-buffer)
5622 (equal (buffer-name (current-buffer))
5623 (buffer-name (get-buffer gnus-article-buffer))))
5624 (save-excursion
5625 (if (get-buffer gnus-original-article-buffer)
5626 (set-buffer gnus-original-article-buffer)
5627 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
5628 (buffer-disable-undo)
5629 (setq major-mode 'gnus-original-article-mode)
5630 (setq buffer-read-only t))
5631 (let ((inhibit-read-only t))
5632 (erase-buffer)
5633 (insert-buffer-substring gnus-article-buffer))
5634 (setq gnus-original-article (cons group article)))
5636 ;; Decode charsets.
5637 (run-hooks 'gnus-article-decode-hook)
5638 ;; Mark article as decoded or not.
5639 (setq gnus-article-decoded-p gnus-article-decode-hook))
5641 ;; Update sparse articles.
5642 (when (and do-update-line
5643 (or (numberp article)
5644 (stringp article)))
5645 (let ((buf (current-buffer)))
5646 (set-buffer gnus-summary-buffer)
5647 (gnus-summary-update-article do-update-line sparse-header)
5648 (gnus-summary-goto-subject do-update-line nil t)
5649 (set-window-point (gnus-get-buffer-window (current-buffer) t)
5650 (point))
5651 (set-buffer buf))))))
5653 ;;;
5654 ;;; Article editing
5655 ;;;
5657 (defcustom gnus-article-edit-mode-hook nil
5658 "Hook run in article edit mode buffers."
5659 :group 'gnus-article-various
5660 :type 'hook)
5662 (defvar gnus-article-edit-done-function nil)
5664 (defvar gnus-article-edit-mode-map nil)
5665 (defvar gnus-article-edit-mode nil)
5667 ;; Should we be using derived.el for this?
5668 (unless gnus-article-edit-mode-map
5669 (setq gnus-article-edit-mode-map (make-keymap))
5670 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
5672 (gnus-define-keys gnus-article-edit-mode-map
5673 "\C-c?" describe-mode
5674 "\C-c\C-c" gnus-article-edit-done
5675 "\C-c\C-k" gnus-article-edit-exit
5676 "\C-c\C-f\C-t" message-goto-to
5677 "\C-c\C-f\C-o" message-goto-from
5678 "\C-c\C-f\C-b" message-goto-bcc
5679 ;;"\C-c\C-f\C-w" message-goto-fcc
5680 "\C-c\C-f\C-c" message-goto-cc
5681 "\C-c\C-f\C-s" message-goto-subject
5682 "\C-c\C-f\C-r" message-goto-reply-to
5683 "\C-c\C-f\C-n" message-goto-newsgroups
5684 "\C-c\C-f\C-d" message-goto-distribution
5685 "\C-c\C-f\C-f" message-goto-followup-to
5686 "\C-c\C-f\C-m" message-goto-mail-followup-to
5687 "\C-c\C-f\C-k" message-goto-keywords
5688 "\C-c\C-f\C-u" message-goto-summary
5689 "\C-c\C-f\C-i" message-insert-or-toggle-importance
5690 "\C-c\C-f\C-a" message-generate-unsubscribed-mail-followup-to
5691 "\C-c\C-b" message-goto-body
5692 "\C-c\C-i" message-goto-signature
5694 "\C-c\C-t" message-insert-to
5695 "\C-c\C-n" message-insert-newsgroups
5696 "\C-c\C-o" message-sort-headers
5697 "\C-c\C-e" message-elide-region
5698 "\C-c\C-v" message-delete-not-region
5699 "\C-c\C-z" message-kill-to-signature
5701 "\C-c\C-a" mml-attach-file
5702 "\C-a" message-beginning-of-line
5704 "\M-;" comment-region)
5706 (gnus-define-keys (gnus-article-edit-wash-map
5707 "\C-c\C-w" gnus-article-edit-mode-map)
5708 "f" gnus-article-edit-full-stops))
5710 (easy-menu-define
5711 gnus-article-edit-mode-field-menu gnus-article-edit-mode-map ""
5712 '("Field"
5713 ["Fetch To" message-insert-to t]
5714 ["Fetch Newsgroups" message-insert-newsgroups t]
5715 "----"
5716 ["To" message-goto-to t]
5717 ["From" message-goto-from t]
5718 ["Subject" message-goto-subject t]
5719 ["Cc" message-goto-cc t]
5720 ["Reply-To" message-goto-reply-to t]
5721 ["Summary" message-goto-summary t]
5722 ["Keywords" message-goto-keywords t]
5723 ["Newsgroups" message-goto-newsgroups t]
5724 ["Followup-To" message-goto-followup-to t]
5725 ["Mail-Followup-To" message-goto-mail-followup-to t]
5726 ["Distribution" message-goto-distribution t]
5727 ["Body" message-goto-body t]
5728 ["Signature" message-goto-signature t]))
5730 (define-derived-mode gnus-article-edit-mode message-mode "Article Edit"
5731 "Major mode for editing articles.
5732 This is an extended text-mode.
5735 (make-local-variable 'gnus-article-edit-done-function)
5736 (make-local-variable 'gnus-prev-winconf)
5737 (set (make-local-variable 'font-lock-defaults)
5738 '(message-font-lock-keywords t))
5739 (set (make-local-variable 'mail-header-separator) "")
5740 (set (make-local-variable 'gnus-article-edit-mode) t)
5741 (easy-menu-add message-mode-field-menu message-mode-map)
5742 (mml-mode)
5743 (setq buffer-read-only nil)
5744 (buffer-enable-undo)
5745 (widen))
5747 (defun gnus-article-edit (&optional force)
5748 "Edit the current article.
5749 This will have permanent effect only in mail groups.
5750 If FORCE is non-nil, allow editing of articles even in read-only
5751 groups."
5752 (interactive "P")
5753 (when (and (not force)
5754 (gnus-group-read-only-p))
5755 (error "The current newsgroup does not support article editing"))
5756 (gnus-article-date-original)
5757 (gnus-article-edit-article
5758 'ignore
5759 `(lambda (no-highlight)
5760 'ignore
5761 (gnus-summary-edit-article-done
5762 ,(or (mail-header-references gnus-current-headers) "")
5763 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
5765 (defun gnus-article-edit-article (start-func exit-func)
5766 "Start editing the contents of the current article buffer."
5767 (let ((winconf (current-window-configuration)))
5768 (set-buffer gnus-article-buffer)
5769 (let ((message-auto-save-directory
5770 ;; Don't associate the article buffer with a draft file.
5771 nil))
5772 (gnus-article-edit-mode))
5773 (funcall start-func)
5774 (set-buffer-modified-p nil)
5775 (gnus-configure-windows 'edit-article)
5776 (setq gnus-article-edit-done-function exit-func)
5777 (setq gnus-prev-winconf winconf)
5778 (gnus-message 6 "C-c C-c to end edits")))
5780 (defun gnus-article-edit-done (&optional arg)
5781 "Update the article edits and exit."
5782 (interactive "P")
5783 (let ((func gnus-article-edit-done-function)
5784 (buf (current-buffer))
5785 (start (window-start))
5786 (p (point))
5787 (winconf gnus-prev-winconf))
5788 (widen) ;; Widen it in case that users narrowed the buffer.
5789 (funcall func arg)
5790 (set-buffer buf)
5791 ;; The cache and backlog have to be flushed somewhat.
5792 (when gnus-keep-backlog
5793 (gnus-backlog-remove-article
5794 (car gnus-article-current) (cdr gnus-article-current)))
5795 ;; Flush original article as well.
5796 (save-excursion
5797 (when (get-buffer gnus-original-article-buffer)
5798 (set-buffer gnus-original-article-buffer)
5799 (setq gnus-original-article nil)))
5800 (when gnus-use-cache
5801 (gnus-cache-update-article
5802 (car gnus-article-current) (cdr gnus-article-current)))
5803 ;; We remove all text props from the article buffer.
5804 (kill-all-local-variables)
5805 (gnus-set-text-properties (point-min) (point-max) nil)
5806 (gnus-article-mode)
5807 (set-window-configuration winconf)
5808 (set-buffer buf)
5809 (set-window-start (get-buffer-window buf) start)
5810 (set-window-point (get-buffer-window buf) (point)))
5811 (gnus-summary-show-article))
5813 (defun gnus-article-edit-exit ()
5814 "Exit the article editing without updating."
5815 (interactive)
5816 (when (or (not (buffer-modified-p))
5817 (yes-or-no-p "Article modified; kill anyway? "))
5818 (let ((curbuf (current-buffer))
5819 (p (point))
5820 (window-start (window-start)))
5821 (erase-buffer)
5822 (if (gnus-buffer-live-p gnus-original-article-buffer)
5823 (insert-buffer gnus-original-article-buffer))
5824 (let ((winconf gnus-prev-winconf))
5825 (kill-all-local-variables)
5826 (gnus-article-mode)
5827 (set-window-configuration winconf)
5828 ;; Tippy-toe some to make sure that point remains where it was.
5829 (save-current-buffer
5830 (set-buffer curbuf)
5831 (set-window-start (get-buffer-window (current-buffer)) window-start)
5832 (goto-char p))))
5833 (gnus-summary-show-article)))
5835 (defun gnus-article-edit-full-stops ()
5836 "Interactively repair spacing at end of sentences."
5837 (interactive)
5838 (save-excursion
5839 (goto-char (point-min))
5840 (search-forward-regexp "^$" nil t)
5841 (let ((case-fold-search nil))
5844 ;;;
5845 ;;; Article highlights
5846 ;;;
5848 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
5850 ;;; Internal Variables:
5852 (defcustom gnus-button-url-regexp
5853 (if (string-match "[[:digit:]]" "1") ;; support POSIX?
5854 "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|nntp\\|news\\|telnet\\|wais\\|mailto\\|info\\):\\)\\(//[-a-z0-9_.]+:[0-9]*\\)?[-a-z0-9_=!?#$@~%&*+\\/:;.,[:word:]]+[-a-z0-9_=#$@~%&*+\\/[:word:]]\\)"
5855 "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|nntp\\|news\\|telnet\\|wais\\|mailto\\|info\\):\\)\\(//[-a-z0-9_.]+:[0-9]*\\)?\\([-a-z0-9_=!?#$@~%&*+\\/:;.,]\\|\\w\\)+\\([-a-z0-9_=#$@~%&*+\\/]\\|\\w\\)\\)")
5856 "Regular expression that matches URLs."
5857 :group 'gnus-article-buttons
5858 :type 'regexp)
5860 (defcustom gnus-button-valid-fqdn-regexp
5861 message-valid-fqdn-regexp
5862 "Regular expression that matches a valid FQDN."
5863 :version "22.1"
5864 :group 'gnus-article-buttons
5865 :type 'regexp)
5867 (defcustom gnus-button-man-handler 'manual-entry
5868 "Function to use for displaying man pages.
5869 The function must take at least one argument with a string naming the
5870 man page."
5871 :version "22.1"
5872 :type '(choice (function-item :tag "Man" manual-entry)
5873 (function-item :tag "Woman" woman)
5874 (function :tag "Other"))
5875 :group 'gnus-article-buttons)
5877 (defcustom gnus-ctan-url "http://tug.ctan.org/tex-archive/"
5878 "Top directory of a CTAN \(Comprehensive TeX Archive Network\) archive.
5879 If the default site is too slow, try to find a CTAN mirror, see
5880 <URL:http://tug.ctan.org/tex-archive/CTAN.sites?action=/index.html>. See also
5881 the variable `gnus-button-handle-ctan'."
5882 :version "22.1"
5883 :group 'gnus-article-buttons
5884 :link '(custom-manual "(gnus)Group Parameters")
5885 :type '(choice (const "http://www.tex.ac.uk/tex-archive/")
5886 (const "http://tug.ctan.org/tex-archive/")
5887 (const "http://www.dante.de/CTAN/")
5888 (string :tag "Other")))
5890 (defcustom gnus-button-ctan-handler 'browse-url
5891 "Function to use for displaying CTAN links.
5892 The function must take one argument, the string naming the URL."
5893 :version "22.1"
5894 :type '(choice (function-item :tag "Browse Url" browse-url)
5895 (function :tag "Other"))
5896 :group 'gnus-article-buttons)
5899 "Bogus strings removed from CTAN URLs."
5900 :version "22.1"
5901 :group 'gnus-article-buttons
5903 (regexp :tag "Other")))
5905 (defcustom gnus-button-ctan-directory-regexp
5906 (concat
5912 "Regular expression for ctan directories.
5913 It should match all directories in the top level of `gnus-ctan-url'."
5914 :version "22.1"
5915 :group 'gnus-article-buttons
5916 :type 'regexp)
5918 (defcustom gnus-button-mid-or-mail-regexp
5920 ;; Felix Wiemann in <87oeuomcz9.fsf@news2.ososo.de>
5921 gnus-button-valid-fqdn-regexp
5923 "Regular expression that matches a message ID or a mail address."
5924 :version "22.1"
5925 :group 'gnus-article-buttons
5926 :type 'regexp)
5928 (defcustom gnus-button-prefer-mid-or-mail 'gnus-button-mid-or-mail-heuristic
5930 Strings like this can be either a message ID or a mail address. If it is one
5931 of the symbols `mid' or `mail', Gnus will always assume that the string is a
5932 message ID or a mail address, respectively. If this variable is set to the
5933 symbol `ask', always query the user what do do. If it is a function, this
5934 function will be called with the string as it's only argument. The function
5935 must return `mid', `mail', `invalid' or `ask'."
5936 :version "22.1"
5937 :group 'gnus-article-buttons
5938 :type '(choice (function-item :tag "Heuristic function"
5939 gnus-button-mid-or-mail-heuristic)
5940 (const ask)
5941 (const mid)
5942 (const mail)))
5944 (defcustom gnus-button-mid-or-mail-heuristic-alist
5946 (-10.0 . "#")
5949 (-5.0 . "@[Nn][Ee][Ww][Ss]") ;; /\@news/i
5950 (-5.0 . "@.*[Dd][Ii][Aa][Ll][Uu][Pp]") ;; /\@.*dialup/i;
5951 (-1.0 . "^[^a-z]+@")
5952 ;;
5954 (-5.0 . "[a-z].*[A-Z].*[a-z].*[A-Z].*@") ;; "([a-z].*[A-Z].*){2,}\@"
5955 (-3.0 . "[A-Z][A-Z][a-z][a-z].*@")
5957 ;;
5958 (-2.0 . "^[0-9]")
5959 (-1.0 . "^[0-9][0-9]")
5960 ;;
5961 ;; -3.0 /^[0-9][0-9a-fA-F]{2,2}/;
5962 (-3.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
5963 ;; -5.0 /^[0-9][0-9a-fA-F]{3,3}/;
5964 (-5.0 . "^[0-9][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][^0-9a-fA-F]")
5965 ;;
5966 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][^0-9].*@") ;; "[0-9]{5,}.*\@"
5967 (-3.0 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][^0-9].*@")
5968 ;; "[0-9]{8,}.*\@"
5969 (-3.0
5970 . "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9].*@")
5971 ;; "[0-9]{12,}.*\@"
5972 ;; compensation for TDMA dated mail addresses:
5973 (25.0 . "-dated-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]+.*@")
5974 ;;
5976 (-20.0 . "^slrn")
5977 (-20.0 . "^Pine")
5978 (-20.0 . "_-_") ;; Subject change in thread
5979 ;;
5983 ;;
5984 ;; (5.0 . "") ;; $local_part_len <= 7
5985 (10.0 . "^[^0-9]+@")
5986 (3.0 . "^[^0-9]+[0-9][0-9]?[0-9]?@")
5987 ;; ^[^0-9]+[0-9]{1,3}\@ digits only at end of local part
5988 (3.0 . "\@stud")
5989 ;;
5990 (2.0 . "[a-z][a-z][._-][A-Z][a-z].*@")
5991 ;;
5992 (0.5 . "^[A-Z][a-z]")
5993 (0.5 . "^[A-Z][a-z][a-z]")
5994 (1.5 . "^[A-Z][a-z][A-Z][a-z][^a-z]") ;; ^[A-Z][a-z]{3,3}
5995 (2.0 . "^[A-Z][a-z][A-Z][a-z][a-z][^a-z]")) ;; ^[A-Z][a-z]{4,4}
5996 "An alist of \(RATE . REGEXP\) pairs for `gnus-button-mid-or-mail-heuristic'.
5998 A negative RATE indicates a message IDs, whereas a positive indicates a mail
5999 address. The REGEXP is processed with `case-fold-search' set to nil."
6000 :version "22.1"
6001 :group 'gnus-article-buttons
6002 :type '(repeat (cons (number :tag "Rate")
6003 (regexp :tag "Regexp"))))
6005 (defun gnus-button-mid-or-mail-heuristic (mid-or-mail)
6006 "Guess whether MID-OR-MAIL is a message ID or a mail address.
6007 Returns `mid' if MID-OR-MAIL is a message IDs, `mail' if it's a mail
6008 address, `ask' if unsure and `invalid' if the string is invalid."
6009 (let ((case-fold-search nil)
6010 (list gnus-button-mid-or-mail-heuristic-alist)
6011 (result 0) rate regexp lpartlen elem)
6012 (setq lpartlen
6014 (gnus-message 8 "`%s', length of local part=`%s'." mid-or-mail lpartlen)
6015 ;; Certain special cases...
6016 (when (string-match
6017 (concat
6021 mid-or-mail)
6022 (gnus-message 8 "`%s' is a known mail address." mid-or-mail)
6023 (setq result 'mail))
6025 (gnus-message 8 "`%s' is invalid." mid-or-mail)
6026 (setq result 'invalid))
6027 ;; Nothing more to do, if result is not a number here...
6028 (when (numberp result)
6029 (while list
6030 (setq elem (car list)
6031 rate (car elem)
6032 regexp (cdr elem)
6033 list (cdr list))
6034 (when (string-match regexp mid-or-mail)
6035 (setq result (+ result rate))
6036 (gnus-message
6037 9 "`%s' matched `%s', rate `%s', result `%s'."
6038 mid-or-mail regexp rate result)))
6039 (when (<= lpartlen 7)
6040 (setq result (+ result 5.0))
6041 (gnus-message 9 "`%s' matched (<= lpartlen 7), result `%s'."
6042 mid-or-mail result))
6043 (when (>= lpartlen 12)
6044 (gnus-message 9 "`%s' matched (>= lpartlen 12)" mid-or-mail)
6045 (cond
6046 ((string-match "[0-9][^0-9]+[0-9].*@" mid-or-mail)
6047 ;; Long local part should contain realname if e-mail address,
6048 ;; too many digits: message-id.
6049 ;; $score -= 5.0 + 0.1 * $local_part_len;
6050 (setq rate (* -1.0 (+ 5.0 (* 0.1 lpartlen))))
6051 (setq result (+ result rate))
6052 (gnus-message
6053 9 "Many digits in `%s', rate `%s', result `%s'."
6054 mid-or-mail rate result))
6055 ((string-match "[^aeiouy][^aeiouy][^aeiouy][^aeiouy]+.*\@"
6056 mid-or-mail)
6057 ;; Too few vowels [^aeiouy]{4,}.*\@
6058 (setq result (+ result -5.0))
6059 (gnus-message
6060 9 "Few vowels in `%s', rate `%s', result `%s'."
6061 mid-or-mail -5.0 result))
6062 (t
6063 (setq result (+ result 5.0))
6064 (gnus-message
6065 9 "`%s', rate `%s', result `%s'." mid-or-mail 5.0 result)))))
6066 (gnus-message 8 "`%s': Final rate is `%s'." mid-or-mail result)
6067 ;; Maybe we should make this a customizable alist: (condition . 'result)
6068 (cond
6069 ((symbolp result) result)
6070 ;; Now convert number into proper results:
6071 ((< result -10.0) 'mid)
6072 ((> result 10.0) 'mail)
6073 (t 'ask))))
6075 (defun gnus-button-handle-mid-or-mail (mid-or-mail)
6076 (let* ((pref gnus-button-prefer-mid-or-mail) guessed
6077 (url-mid (concat "news" ":" mid-or-mail))
6078 (url-mailto (concat "mailto" ":" mid-or-mail)))
6079 (gnus-message 9 "mid-or-mail=%s" mid-or-mail)
6080 (when (fboundp pref)
6081 (setq guessed
6082 ;; get rid of surrounding angles...
6083 (funcall pref
6085 (if (or (eq 'mid guessed) (eq 'mail guessed))
6086 (setq pref guessed)
6087 (setq pref 'ask)))
6088 (if (eq pref 'ask)
6089 (save-window-excursion
6090 (if (y-or-n-p (concat "Is <" mid-or-mail "> a mail address? "))
6091 (setq pref 'mail)
6092 (setq pref 'mid))))
6093 (cond ((eq pref 'mid)
6094 (gnus-message 8 "calling `gnus-button-handle-news' %s" url-mid)
6095 (gnus-button-handle-news url-mid))
6096 ((eq pref 'mail)
6097 (gnus-message 8 "calling `gnus-url-mailto' %s" url-mailto)
6098 (gnus-url-mailto url-mailto))
6099 (t (gnus-message 3 "Invalid string.")))))
6101 (defun gnus-button-handle-custom (url)
6102 "Follow a Custom URL."
6103 (customize-apropos (gnus-url-unhex-string url)))
6107 ;; FIXME: Maybe we should merge some of the functions that do quite similar
6108 ;; stuff?
6110 (defun gnus-button-handle-describe-function (url)
6111 "Call `describe-function' when pushing the corresponding URL button."
6112 (describe-function
6113 (intern
6114 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
6116 (defun gnus-button-handle-describe-variable (url)
6117 "Call `describe-variable' when pushing the corresponding URL button."
6118 (describe-variable
6119 (intern
6120 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))))
6122 (defun gnus-button-handle-symbol (url)
6123 "Display help on variable or function.
6124 Calls `describe-variable' or `describe-function'."
6125 (let ((sym (intern url)))
6126 (cond
6127 ((fboundp sym) (describe-function sym))
6128 ((boundp sym) (describe-variable sym))
6129 (t (gnus-message 3 "`%s' is not a known function of variable." url)))))
6131 (defun gnus-button-handle-describe-key (url)
6132 "Call `describe-key' when pushing the corresponding URL button."
6133 (let* ((key-string
6134 (gnus-replace-in-string url gnus-button-handle-describe-prefix ""))
6135 (keys (ignore-errors (eval `(kbd ,key-string)))))
6136 (if keys
6137 (describe-key keys)
6138 (gnus-message 3 "Invalid key sequence in button: %s" key-string))))
6140 (defun gnus-button-handle-apropos (url)
6141 "Call `apropos' when pushing the corresponding URL button."
6142 (apropos (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
6144 (defun gnus-button-handle-apropos-command (url)
6145 "Call `apropos' when pushing the corresponding URL button."
6146 (apropos-command
6147 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
6149 (defun gnus-button-handle-apropos-variable (url)
6150 "Call `apropos' when pushing the corresponding URL button."
6151 (funcall
6152 (if (fboundp 'apropos-variable) 'apropos-variable 'apropos)
6153 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
6155 (defun gnus-button-handle-apropos-documentation (url)
6156 "Call `apropos' when pushing the corresponding URL button."
6157 (funcall
6158 (if (fboundp 'apropos-documentation) 'apropos-documentation 'apropos)
6159 (gnus-replace-in-string url gnus-button-handle-describe-prefix "")))
6161 (defun gnus-button-handle-library (url)
6162 "Call `locate-library' when pushing the corresponding URL button."
6163 (gnus-message 9 "url=`%s'" url)
6164 (let* ((lib (locate-library url))
6165 (file (gnus-replace-in-string (or lib "") "\.elc" ".el")))
6166 (if (not lib)
6167 (gnus-message 1 "Cannot locale library `%s'." url)
6168 (find-file-read-only file))))
6170 (defun gnus-button-handle-ctan (url)
6171 "Call `browse-url' when pushing a CTAN URL button."
6172 (funcall
6173 gnus-button-ctan-handler
6174 (concat
6175 gnus-ctan-url
6176 (gnus-replace-in-string url gnus-button-handle-ctan-bogus-regexp ""))))
6178 (defcustom gnus-button-tex-level 5
6179 "*Integer that says how many TeX-related buttons Gnus will show.
6180 The higher the number, the more buttons will appear and the more false
6181 positives are possible. Note that you can set this variable local to
6182 specific groups. Setting it higher in TeX groups is probably a good idea.
6183 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
6184 how to set variables in specific groups."
6185 :version "22.1"
6186 :group 'gnus-article-buttons
6187 :link '(custom-manual "(gnus)Group Parameters")
6188 :type 'integer)
6190 (defcustom gnus-button-man-level 5
6191 "*Integer that says how many man-related buttons Gnus will show.
6192 The higher the number, the more buttons will appear and the more false
6193 positives are possible. Note that you can set this variable local to
6194 specific groups. Setting it higher in Unix groups is probably a good idea.
6195 See Info node `(gnus)Group Parameters' and the variable `gnus-parameters' on
6196 how to set variables in specific groups."
6197 :version "22.1"
6198 :group 'gnus-article-buttons
6199 :link '(custom-manual "(gnus)Group Parameters")
6200 :type 'integer)
6202 (defcustom gnus-button-emacs-level 5
6203 "*Integer that says how many emacs-related buttons Gnus will show.
6204 The higher the number, the more buttons will appear and the more false
6205 positives are possible. Note that you can set this variable local to
6206 specific groups. Setting it higher in Emacs or Gnus related groups is
6207 probably a good idea. See Info node `(gnus)Group Parameters' and the variable
6208 `gnus-parameters' on how to set variables in specific groups."
6209 :version "22.1"
6210 :group 'gnus-article-buttons
6211 :link '(custom-manual "(gnus)Group Parameters")
6212 :type 'integer)
6214 (defcustom gnus-button-message-level 5
6215 "*Integer that says how many buttons for news or mail messages will appear.
6216 The higher the number, the more buttons will appear and the more false
6217 positives are possible."
6218 ;; mail addresses, MIDs, URLs for news, ...
6219 :version "22.1"
6220 :group 'gnus-article-buttons
6221 :type 'integer)
6223 (defcustom gnus-button-browse-level 5
6224 "*Integer that says how many buttons for browsing will appear.
6225 The higher the number, the more buttons will appear and the more false
6226 positives are possible."
6227 ;; stuff handled by `browse-url' or `gnus-button-embedded-url'
6228 :version "22.1"
6229 :group 'gnus-article-buttons
6230 :type 'integer)
6232 (defcustom gnus-button-alist
6234 0 (>= gnus-button-message-level 0) gnus-button-handle-news 3)
6236 gnus-button-handle-news 2)
6238 1 (>= gnus-button-message-level 0) gnus-button-fetch-group 5)
6240 0 (>= gnus-button-message-level 0) gnus-button-fetch-group 3)
6241 ;; RFC 2392 (Don't allow `/' in domain part --> CID)
6243 0 (>= gnus-button-message-level 0) gnus-button-message-id 2)
6245 2 (>= gnus-button-message-level 0) gnus-button-message-id 3)
6247 0 (>= gnus-button-message-level 0) gnus-url-mailto 2)
6248 ;; RFC 2368 (The mailto URL scheme)
6250 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
6252 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
6253 ;; CTAN
6255 gnus-button-ctan-directory-regexp
6257 0 (>= gnus-button-tex-level 1) gnus-button-handle-ctan 1)
6259 gnus-button-ctan-directory-regexp
6261 1 (>= gnus-button-tex-level 6) gnus-button-handle-ctan 1)
6262 ((concat
6264 gnus-button-ctan-directory-regexp
6266 1 (>= gnus-button-tex-level 8) gnus-button-handle-ctan 1)
6267 ;; This is info (home-grown style) <info://foo/bar+baz>
6269 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 1)
6270 ;; Info GNOME style <info:foo#bar_baz>
6272 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-gnome 1)
6273 ;; Info KDE style <info:(foo)bar baz>
6275 1 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url-kde 2)
6277 (>= gnus-button-emacs-level 1) gnus-button-handle-info-url 2)
6279 ;; Info links like `C-h i d m CC Mode RET'
6280 0 (>= gnus-button-emacs-level 1) gnus-button-handle-info-keystrokes 2)
6281 ;; This is custom
6283 0 (>= gnus-button-emacs-level 5) gnus-button-handle-custom 2)
6285 (>= gnus-button-emacs-level 1) gnus-button-handle-custom 1)
6286 ;; Emacs help commands
6288 ;; regexp doesn't match arguments containing ` '.
6289 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos 1)
6291 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-command 1)
6293 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-variable 1)
6295 0 (>= gnus-button-emacs-level 1) gnus-button-handle-apropos-documentation 1)
6296 ;; The following entries may lead to many false positives so don't enable
6297 ;; them by default (use a high button level).
6299 ;; Exclude [.?] for URLs in gmane.emacs.cvs
6300 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
6302 1 (>= gnus-button-emacs-level 8) gnus-button-handle-library 1)
6304 0 (>= gnus-button-emacs-level 8) gnus-button-handle-symbol 1)
6306 0 (>= gnus-button-emacs-level 9) gnus-button-handle-symbol 1)
6308 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-variable 1)
6310 1 (>= gnus-button-emacs-level 7) gnus-button-handle-describe-function 1)
6312 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-function 2)
6314 0 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-variable 2)
6316 ;; Unlike the other regexps we really have to require quoting
6317 ;; here to determine where it ends.
6318 1 (>= gnus-button-emacs-level 1) gnus-button-handle-describe-key 3)
6319 ;; This is how URLs _should_ be embedded in text (RFC 1738, RFC 2396)...
6321 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
6322 ;; RFC 2396 (2.4.3., delims) ...
6324 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
6325 ;; RFC 2396 (2.4.3., delims) ...
6327 1 (>= gnus-button-browse-level 0) gnus-button-embedded-url 1)
6328 ;; Raw URLs.
6329 (gnus-button-url-regexp
6330 0 (>= gnus-button-browse-level 0) browse-url 0)
6331 ;; man pages
6333 0 (and (>= gnus-button-man-level 1) (< gnus-button-man-level 3))
6334 gnus-button-handle-man 1)
6335 ;; more man pages: resolv.conf(5), iso_8859-1(7), xterm(1x)
6337 0 (and (>= gnus-button-man-level 3) (< gnus-button-man-level 5))
6338 gnus-button-handle-man 1)
6339 ;; even more: Apache::PerlRun(3pm), PDL::IO::FastRaw(3pm),
6340 ;; SoWWWAnchor(3iv), XSelectInput(3X11), X(1), X(7)
6342 0 (>= gnus-button-man-level 5) gnus-button-handle-man 1)
6343 ;; MID or mail: To avoid too many false positives we don't try to catch
6344 ;; all kind of allowed MIDs or mail addresses. Domain part must contain
6345 ;; at least one dot. TLD must contain two or three chars or be a know TLD
6346 ;; (info|name|...). Put this entry near the _end_ of `gnus-button-alist'
6347 ;; so that non-ambiguous entries (see above) match first.
6348 (gnus-button-mid-or-mail-regexp
6349 0 (>= gnus-button-message-level 5) gnus-button-handle-mid-or-mail 1))
6350 "*Alist of regexps matching buttons in article bodies.
6352 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
6353 REGEXP: is the string (case insensitive) matching text around the button (can
6354 also be Lisp expression evaluating to a string),
6355 BUTTON: is the number of the regexp grouping actually matching the button,
6356 FORM: is a Lisp expression which must eval to true for the button to
6357 be added,
6358 CALLBACK: is the function to call when the user push this button, and each
6359 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
6361 CALLBACK can also be a variable, in that case the value of that
6362 variable it the real callback function."
6363 :group 'gnus-article-buttons
6364 :type '(repeat (list (choice regexp variable sexp)
6365 (integer :tag "Button")
6366 (sexp :tag "Form")
6367 (function :tag "Callback")
6368 (repeat :tag "Par"
6369 :inline t
6370 (integer :tag "Regexp group")))))
6372 (defcustom gnus-header-button-alist
6374 0 (>= gnus-button-message-level 0) gnus-button-message-id 0)
6376 1 (>= gnus-button-message-level 0) gnus-button-reply 1)
6378 0 (>= gnus-button-message-level 0) gnus-msg-mail 0)
6379 ("^X-[Uu][Rr][Ll]:" gnus-button-url-regexp
6380 0 (>= gnus-button-browse-level 0) browse-url 0)
6381 ("^Subject:" gnus-button-url-regexp
6382 0 (>= gnus-button-browse-level 0) browse-url 0)
6383 ("^[^:]+:" gnus-button-url-regexp
6384 0 (>= gnus-button-browse-level 0) browse-url 0)
6386 0 (>= gnus-button-message-level 0) gnus-url-mailto 1)
6388 1 (>= gnus-button-message-level 0) gnus-button-message-id 4))
6389 "*Alist of headers and regexps to match buttons in article heads.
6391 This alist is very similar to `gnus-button-alist', except that each
6392 alist has an additional HEADER element first in each entry:
6394 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
6396 HEADER is a regexp to match a header. For a fuller explanation, see
6397 `gnus-button-alist'."
6398 :group 'gnus-article-buttons
6399 :group 'gnus-article-headers
6400 :type '(repeat (list (regexp :tag "Header")
6401 (choice regexp variable)
6402 (integer :tag "Button")
6403 (sexp :tag "Form")
6404 (function :tag "Callback")
6405 (repeat :tag "Par"
6406 :inline t
6407 (integer :tag "Regexp group")))))
6409 (defvar gnus-button-regexp nil)
6410 (defvar gnus-button-marker-list nil)
6411 ;; Regexp matching any of the regexps from `gnus-button-alist'.
6413 (defvar gnus-button-last nil)
6414 ;; The value of `gnus-button-alist' when `gnus-button-regexp' was build.
6416 ;;; Commands:
6418 (defun gnus-article-push-button (event)
6419 "Check text under the mouse pointer for a callback function.
6420 If the text under the mouse pointer has a `gnus-callback' property,
6421 call it with the value of the `gnus-data' text property."
6422 (interactive "e")
6423 (set-buffer (window-buffer (posn-window (event-start event))))
6424 (let* ((pos (posn-point (event-start event)))
6425 (data (get-text-property pos 'gnus-data))
6426 (fun (get-text-property pos 'gnus-callback)))
6427 (goto-char pos)
6428 (when fun
6429 (funcall fun data))))
6431 (defun gnus-article-press-button ()
6432 "Check text at point for a callback function.
6433 If the text at point has a `gnus-callback' property,
6434 call it with the value of the `gnus-data' text property."
6435 (interactive)
6436 (let ((data (get-text-property (point) 'gnus-data))
6437 (fun (get-text-property (point) 'gnus-callback)))
6438 (when fun
6439 (funcall fun data))))
6441 (defun gnus-article-highlight (&optional force)
6442 "Highlight current article.
6443 This function calls `gnus-article-highlight-headers',
6444 `gnus-article-highlight-citation',
6445 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
6446 do the highlighting. See the documentation for those functions."
6447 (interactive (list 'force))
6448 (gnus-article-highlight-headers)
6449 (gnus-article-highlight-citation force)
6450 (gnus-article-highlight-signature)
6451 (gnus-article-add-buttons force)
6452 (gnus-article-add-buttons-to-head))
6454 (defun gnus-article-highlight-some (&optional force)
6455 "Highlight current article.
6456 This function calls `gnus-article-highlight-headers',
6457 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
6458 do the highlighting. See the documentation for those functions."
6459 (interactive (list 'force))
6460 (gnus-article-highlight-headers)
6461 (gnus-article-highlight-signature)
6462 (gnus-article-add-buttons))
6464 (defun gnus-article-highlight-headers ()
6465 "Highlight article headers as specified by `gnus-header-face-alist'."
6466 (interactive)
6467 (save-excursion
6468 (set-buffer gnus-article-buffer)
6469 (save-restriction
6470 (let ((alist gnus-header-face-alist)
6471 (inhibit-read-only t)
6472 (case-fold-search t)
6473 (inhibit-point-motion-hooks t)
6474 entry regexp header-face field-face from hpoints fpoints)
6475 (article-narrow-to-head)
6476 (while (setq entry (pop alist))
6477 (goto-char (point-min))
6479 (if (string-equal "" (nth 0 entry))
6481 (nth 0 entry))
6483 header-face (nth 1 entry)
6484 field-face (nth 2 entry))
6485 (while (and (re-search-forward regexp nil t)
6486 (not (eobp)))
6487 (beginning-of-line)
6488 (setq from (point))
6489 (unless (search-forward ":" nil t)
6490 (forward-char 1))
6491 (when (and header-face
6492 (not (memq (point) hpoints)))
6493 (push (point) hpoints)
6494 (gnus-put-text-property from (point) 'face header-face))
6495 (when (and field-face
6496 (not (memq (setq from (point)) fpoints)))
6497 (push from fpoints)
6499 (forward-char -2)
6500 (goto-char (point-max)))
6501 (gnus-put-text-property from (point) 'face field-face))))))))
6503 (defun gnus-article-highlight-signature ()
6504 "Highlight the signature in an article.
6505 It does this by highlighting everything after
6506 `gnus-signature-separator' using the face `gnus-signature'."
6507 (interactive)
6508 (save-excursion
6509 (set-buffer gnus-article-buffer)
6510 (let ((inhibit-read-only t)
6511 (inhibit-point-motion-hooks t))
6512 (save-restriction
6513 (when (and gnus-signature-face
6514 (gnus-article-narrow-to-signature))
6515 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max))
6516 'face gnus-signature-face)
6517 (widen)
6518 (gnus-article-search-signature)
6519 (let ((start (match-beginning 0))
6520 (end (set-marker (make-marker) (1+ (match-end 0)))))
6521 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
6522 end)))))))
6524 (defun gnus-button-in-region-p (b e prop)
6525 "Say whether PROP exists in the region."
6526 (text-property-not-all b e prop nil))
6528 (defun gnus-article-add-buttons (&optional force)
6529 "Find external references in the article and make buttons of them.
6531 specified by `gnus-button-alist'."
6532 (interactive (list 'force))
6533 (save-excursion
6534 (set-buffer gnus-article-buffer)
6535 (let ((inhibit-read-only t)
6536 (inhibit-point-motion-hooks t)
6537 (case-fold-search t)
6538 (alist gnus-button-alist)
6539 beg entry regexp)
6540 ;; Remove all old markers.
6541 (let (marker entry new-list)
6542 (while (setq marker (pop gnus-button-marker-list))
6543 (if (or (< marker (point-min)) (>= marker (point-max)))
6544 (push marker new-list)
6545 (goto-char marker)
6546 (when (setq entry (gnus-button-entry))
6547 (put-text-property (match-beginning (nth 1 entry))
6548 (match-end (nth 1 entry))
6549 'gnus-callback nil))
6550 (set-marker marker nil)))
6551 (setq gnus-button-marker-list new-list))
6552 ;; We skip the headers.
6553 (article-goto-body)
6554 (setq beg (point))
6555 (while (setq entry (pop alist))
6556 (setq regexp (eval (car entry)))
6557 (goto-char beg)
6558 (while (re-search-forward regexp nil t)
6559 (let* ((start (and entry (match-beginning (nth 1 entry))))
6560 (end (and entry (match-end (nth 1 entry))))
6561 (from (match-beginning 0)))
6562 (when (and (or (eq t (nth 2 entry))
6563 (eval (nth 2 entry)))
6564 (not (gnus-button-in-region-p
6565 start end 'gnus-callback)))
6566 ;; That optional form returned non-nil, so we add the
6567 ;; button.
6568 (gnus-article-add-button
6569 start end 'gnus-button-push
6570 (car (push (set-marker (make-marker) from)
6571 gnus-button-marker-list))))))))))
6573 ;; Add buttons to the head of an article.
6574 (defun gnus-article-add-buttons-to-head ()
6575 "Add buttons to the head of the article."
6576 (interactive)
6577 (save-excursion
6578 (set-buffer gnus-article-buffer)
6579 (save-restriction
6580 (let ((inhibit-read-only t)
6581 (inhibit-point-motion-hooks t)
6582 (case-fold-search t)
6583 (alist gnus-header-button-alist)
6584 entry beg end)
6585 (article-narrow-to-head)
6586 (while alist
6587 ;; Each alist entry.
6588 (setq entry (car alist)
6589 alist (cdr alist))
6590 (goto-char (point-min))
6591 (while (re-search-forward (car entry) nil t)
6592 ;; Each header matching the entry.
6593 (setq beg (match-beginning 0))
6595 (match-beginning 0))
6596 (point-max)))
6597 (goto-char beg)
6598 (while (re-search-forward (eval (nth 1 entry)) end t)
6599 ;; Each match within a header.
6600 (let* ((entry (cdr entry))
6601 (start (match-beginning (nth 1 entry)))
6602 (end (match-end (nth 1 entry)))
6603 (form (nth 2 entry)))
6604 (goto-char (match-end 0))
6605 (when (eval form)
6606 (gnus-article-add-button
6607 start end (nth 3 entry)
6608 (buffer-substring (match-beginning (nth 4 entry))
6609 (match-end (nth 4 entry)))))))
6610 (goto-char end)))))))
6612 ;;; External functions:
6614 (defun gnus-article-add-button (from to fun &optional data)
6615 "Create a button between FROM and TO with callback FUN and data DATA."
6616 (when gnus-article-button-face
6617 (gnus-overlay-put (gnus-make-overlay from to)
6618 'face gnus-article-button-face))
6619 (gnus-add-text-properties
6620 from to
6621 (nconc (and gnus-article-mouse-face
6622 (list gnus-mouse-face-prop gnus-article-mouse-face))
6623 (list 'gnus-callback fun)
6624 (and data (list 'gnus-data data))))
6625 (widget-convert-button 'link from to :action 'gnus-widget-press-button
6626 :button-keymap gnus-widget-button-keymap))
6628 ;;; Internal functions:
6630 (defun gnus-article-set-globals ()
6631 (save-excursion
6632 (set-buffer gnus-summary-buffer)
6633 (gnus-set-global-variables)))
6635 (defun gnus-signature-toggle (end)
6636 (save-excursion
6637 (set-buffer gnus-article-buffer)
6638 (let ((inhibit-read-only t)
6639 (inhibit-point-motion-hooks t))
6640 (if (text-property-any end (point-max) 'article-type 'signature)
6641 (progn
6642 (gnus-delete-wash-type 'signature)
6643 (gnus-remove-text-properties-when
6644 'article-type 'signature end (point-max)
6645 (cons 'article-type (cons 'signature
6646 gnus-hidden-properties))))
6647 (gnus-add-wash-type 'signature)
6648 (gnus-add-text-properties-when
6649 'article-type nil end (point-max)
6650 (cons 'article-type (cons 'signature
6651 gnus-hidden-properties)))))
6652 (let ((gnus-article-mime-handle-alist-1 gnus-article-mime-handle-alist))
6653 (gnus-set-mode-line 'article))))
6655 (defun gnus-button-entry ()
6656 ;; Return the first entry in `gnus-button-alist' matching this place.
6657 (let ((alist gnus-button-alist)
6658 (entry nil))
6659 (while alist
6660 (setq entry (pop alist))
6661 (if (looking-at (eval (car entry)))
6662 (setq alist nil)
6663 (setq entry nil)))
6664 entry))
6666 (defun gnus-button-push (marker)
6667 ;; Push button starting at MARKER.
6668 (save-excursion
6669 (goto-char marker)
6670 (let* ((entry (gnus-button-entry))
6671 (inhibit-point-motion-hooks t)
6672 (fun (nth 3 entry))
6673 (args (mapcar (lambda (group)
6674 (let ((string (match-string group)))
6675 (gnus-set-text-properties
6676 0 (length string) nil string)
6677 string))
6678 (nthcdr 4 entry))))
6679 (cond
6680 ((fboundp fun)
6681 (apply fun args))
6682 ((and (boundp fun)
6683 (fboundp (symbol-value fun)))
6684 (apply (symbol-value fun) args))
6685 (t
6686 (gnus-message 1 "You must define `%S' to use this button"
6687 (cons fun args)))))))
6689 (defun gnus-parse-news-url (url)
6690 (let (scheme server port group message-id articles)
6691 (with-temp-buffer
6692 (insert url)
6693 (goto-char (point-min))
6695 (setq scheme (match-string 1))
6696 (goto-char (match-end 0)))
6698 (setq server (match-string 1))
6699 (setq port (if (stringp (match-string 3))
6700 (string-to-number (match-string 3))
6701 (match-string 3)))
6702 (goto-char (match-end 0)))
6704 (cond
6706 (setq message-id (match-string 1)))
6708 (setq group (match-string 1)
6709 articles (split-string (match-string 2) "-")))
6711 (setq group (match-string 1)))
6712 (t
6713 (error "Unknown news URL syntax"))))
6714 (list scheme server port group message-id articles)))
6716 (defun gnus-button-handle-news (url)
6717 "Fetch a news URL."
6718 (destructuring-bind (scheme server port group message-id articles)
6719 (gnus-parse-news-url url)
6720 (cond
6721 (message-id
6722 (save-excursion
6723 (set-buffer gnus-summary-buffer)
6724 (if server
6725 (let ((gnus-refer-article-method
6726 (nconc (list (list 'nntp server))
6727 gnus-refer-article-method))
6728 (nntp-port-number (or port "nntp")))
6729 (gnus-message 7 "Fetching %s with %s"
6730 message-id gnus-refer-article-method)
6731 (gnus-summary-refer-article message-id))
6732 (gnus-summary-refer-article message-id))))
6733 (group
6734 (gnus-button-fetch-group url)))))
6736 (defun gnus-button-handle-man (url)
6737 "Fetch a man page."
6738 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
6739 (when (eq gnus-button-man-handler 'woman)
6741 (gnus-message 9 "`%s' `%s'" gnus-button-man-handler url)
6742 (funcall gnus-button-man-handler url))
6744 (defun gnus-button-handle-info-url (url)
6745 "Fetch an info URL."
6746 (setq url (mm-subst-char-in-string ?+ ?\ url))
6747 (cond
6749 (gnus-info-find-node
6750 (concat "(" (or (gnus-url-unhex-string (match-string 1 url))
6751 "Gnus")
6752 ")" (gnus-url-unhex-string (match-string 2 url)))))
6754 (setq url
6755 (gnus-replace-in-string
6757 (gnus-info-find-node url))
6758 (t (error "Can't parse %s" url))))
6760 (defun gnus-button-handle-info-url-gnome (url)
6761 "Fetch GNOME style info URL."
6762 (setq url (mm-subst-char-in-string ?_ ?\ url))
6764 (gnus-info-find-node
6765 (concat "("
6766 (gnus-url-unhex-string
6767 (match-string 1 url))
6768 ")"
6769 (or (gnus-url-unhex-string
6770 (match-string 2 url))
6771 "Top")))
6772 (error "Can't parse %s" url)))
6774 (defun gnus-button-handle-info-url-kde (url)
6775 "Fetch KDE style info URL."
6776 (gnus-info-find-node (gnus-url-unhex-string url)))
6778 (defun gnus-button-handle-info-keystrokes (url)
6779 "Call `info' when pushing the corresponding URL button."
6780 ;; For links like `C-h i d m gnus RET', `C-h i d m CC Mode RET'.
6781 (info)
6782 (Info-directory)
6783 (Info-menu url))
6785 (defun gnus-button-message-id (message-id)
6786 "Fetch MESSAGE-ID."
6787 (save-excursion
6788 (set-buffer gnus-summary-buffer)
6789 (gnus-summary-refer-article message-id)))
6791 (defun gnus-button-fetch-group (address)
6792 "Fetch GROUP specified by ADDRESS."
6793 (if (not (string-match "[:/]" address))
6794 ;; This is just a simple group url.
6795 (gnus-group-read-ephemeral-group address gnus-select-method)
6796 (if (not
6797 (string-match
6799 address))
6800 (error "Can't parse %s" address)
6801 (gnus-group-read-ephemeral-group
6802 (match-string 4 address)
6803 `(nntp ,(match-string 1 address)
6804 (nntp-address ,(match-string 1 address))
6805 (nntp-port-number ,(if (match-end 3)
6806 (match-string 3 address)
6807 "nntp")))
6808 nil nil nil
6809 (and (match-end 6) (list (string-to-number (match-string 6 address))))))))
6811 (defun gnus-url-parse-query-string (query &optional downcase)
6812 (let (retval pairs cur key val)
6813 (setq pairs (split-string query "&"))
6814 (while pairs
6815 (setq cur (car pairs)
6816 pairs (cdr pairs))
6817 (if (not (string-match "=" cur))
6818 nil ; Grace
6819 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
6820 val (gnus-url-unhex-string (substring cur (match-end 0) nil) t))
6821 (if downcase
6822 (setq key (downcase key)))
6823 (setq cur (assoc key retval))
6824 (if cur
6825 (setcdr cur (cons val (cdr cur)))
6826 (setq retval (cons (list key val) retval)))))
6827 retval))
6829 (defun gnus-url-mailto (url)
6830 ;; Send mail to someone
6832 (setq url (substring url (match-beginning 1) nil)))
6833 (let (to args subject func)
6834 (setq args (gnus-url-parse-query-string
6836 (substring url 1)
6838 (concat "to=" (match-string 1 url) "&"
6839 (match-string 2 url))
6840 (concat "to=" url)))
6841 t)
6842 subject (cdr-safe (assoc "subject" args)))
6843 (gnus-msg-mail)
6844 (while args
6845 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
6846 (if (fboundp func)
6847 (funcall func)
6848 (message-position-on-field (caar args)))
6849 (insert (gnus-replace-in-string
6850 (mapconcat 'identity (reverse (cdar args)) ", ")
6852 (setq args (cdr args)))
6853 (if subject
6854 (message-goto-body)
6855 (message-goto-subject))))
6857 (defun gnus-button-embedded-url (address)
6858 "Activate ADDRESS with `browse-url'."
6859 (browse-url (gnus-strip-whitespace address)))
6861 ;;; Next/prev buttons in the article buffer.
6866 (defvar gnus-prev-page-map
6867 (let ((map (make-sparse-keymap)))
6868 (unless (>= emacs-major-version 21)
6869 ;; XEmacs doesn't care.
6870 (set-keymap-parent map gnus-article-mode-map))
6871 (define-key map gnus-mouse-2 'gnus-button-prev-page)
6873 map))
6875 (defvar gnus-next-page-map
6876 (let ((map (make-sparse-keymap)))
6877 (unless (>= emacs-major-version 21)
6878 ;; XEmacs doesn't care.
6879 (set-keymap-parent map gnus-article-mode-map))
6880 (define-key map gnus-mouse-2 'gnus-button-next-page)
6882 map))
6884 (defun gnus-insert-prev-page-button ()
6885 (let ((b (point))
6886 (inhibit-read-only t))
6887 (gnus-eval-format
6888 gnus-prev-page-line-format nil
6889 `(,@(gnus-local-map-property gnus-prev-page-map)
6890 gnus-prev t
6891 gnus-callback gnus-article-button-prev-page
6892 article-type annotation))
6893 (widget-convert-button
6894 'link b (if (bolp)
6895 ;; Exclude a newline.
6896 (1- (point))
6897 (point))
6898 :action 'gnus-button-prev-page
6899 :button-keymap gnus-prev-page-map)))
6901 (defun gnus-button-next-page (&optional args more-args)
6902 "Go to the next page."
6903 (interactive)
6904 (let ((win (selected-window)))
6905 (select-window (gnus-get-buffer-window gnus-article-buffer t))
6906 (gnus-article-next-page)
6907 (select-window win)))
6909 (defun gnus-button-prev-page (&optional args more-args)
6910 "Go to the prev page."
6911 (interactive)
6912 (let ((win (selected-window)))
6913 (select-window (gnus-get-buffer-window gnus-article-buffer t))
6914 (gnus-article-prev-page)
6915 (select-window win)))
6917 (defun gnus-insert-next-page-button ()
6918 (let ((b (point))
6919 (inhibit-read-only t))
6920 (gnus-eval-format gnus-next-page-line-format nil
6921 `(,@(gnus-local-map-property gnus-next-page-map)
6922 gnus-next t
6923 gnus-callback gnus-article-button-next-page
6924 article-type annotation))
6925 (widget-convert-button
6926 'link b (if (bolp)
6927 ;; Exclude a newline.
6928 (1- (point))
6929 (point))
6930 :action 'gnus-button-next-page
6931 :button-keymap gnus-next-page-map)))
6933 (defun gnus-article-button-next-page (arg)
6934 "Go to the next page."
6935 (interactive "P")
6936 (let ((win (selected-window)))
6937 (select-window (gnus-get-buffer-window gnus-article-buffer t))
6938 (gnus-article-next-page)
6939 (select-window win)))
6941 (defun gnus-article-button-prev-page (arg)
6942 "Go to the prev page."
6943 (interactive "P")
6944 (let ((win (selected-window)))
6945 (select-window (gnus-get-buffer-window gnus-article-buffer t))
6946 (gnus-article-prev-page)
6947 (select-window win)))
6949 (defvar gnus-decode-header-methods
6950 '(mail-decode-encoded-word-region)
6951 "List of methods used to decode headers.
6953 This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
6954 is FUNCTION, FUNCTION will be applied to all newsgroups. If item is a
6955 \(REGEXP . FUNCTION), FUNCTION will be only apply to the newsgroups
6956 whose names match REGEXP.
6958 For example:
6960 mail-decode-encoded-word-region
6962 ")
6964 (defvar gnus-decode-header-methods-cache nil)
6966 (defun gnus-multi-decode-header (start end)
6967 "Apply the functions from `gnus-encoded-word-methods' that match."
6968 (unless (and gnus-decode-header-methods-cache
6969 (eq gnus-newsgroup-name
6970 (car gnus-decode-header-methods-cache)))
6971 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
6972 (mapcar (lambda (x)
6973 (if (symbolp x)
6974 (nconc gnus-decode-header-methods-cache (list x))
6975 (if (and gnus-newsgroup-name
6976 (string-match (car x) gnus-newsgroup-name))
6977 (nconc gnus-decode-header-methods-cache
6978 (list (cdr x))))))
6979 gnus-decode-header-methods))
6980 (let ((xlist gnus-decode-header-methods-cache))
6981 (pop xlist)
6982 (save-restriction
6983 (narrow-to-region start end)
6984 (while xlist
6985 (funcall (pop xlist) (point-min) (point-max))))))
6987 ;;;
6988 ;;; Treatment top-level handling.
6989 ;;;
6991 (defun gnus-treat-article (condition &optional part-number total-parts type)
6992 (let ((length (- (point-max) (point-min)))
6993 (alist gnus-treatment-function-alist)
6994 (article-goto-body-goes-to-point-min-p t)
6995 (treated-type
6996 (or (not type)
6997 (catch 'found
6998 (let ((list gnus-article-treat-types))
6999 (while list
7000 (when (string-match (pop list) type)
7001 (throw 'found t)))))))
7002 (highlightp (gnus-visual-p 'article-highlight 'highlight))
7003 val elem)
7004 (gnus-run-hooks 'gnus-part-display-hook)
7005 (dolist (elem alist)
7006 (setq val
7007 (save-excursion
7008 (when (gnus-buffer-live-p gnus-summary-buffer)
7009 (set-buffer gnus-summary-buffer))
7010 (symbol-value (car elem))))
7011 (when (and (or (consp val)
7012 treated-type)
7013 (gnus-treat-predicate val)
7014 (or (not (get (car elem) 'highlight))
7015 highlightp))
7016 (save-restriction
7017 (funcall (cadr elem)))))))
7019 ;; Dynamic variables.
7020 (eval-when-compile
7021 (defvar part-number)
7022 (defvar total-parts)
7023 (defvar type)
7024 (defvar condition)
7025 (defvar length))
7027 (defun gnus-treat-predicate (val)
7028 (cond
7029 ((null val)
7030 nil)
7031 (condition
7032 (eq condition val))
7033 ((and (listp val)
7034 (stringp (car val)))
7035 (apply 'gnus-or (mapcar `(lambda (s)
7036 (string-match s ,(or gnus-newsgroup-name "")))
7037 val)))
7038 ((listp val)
7039 (let ((pred (pop val)))
7040 (cond
7041 ((eq pred 'or)
7042 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
7043 ((eq pred 'and)
7044 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
7045 ((eq pred 'not)
7046 (not (gnus-treat-predicate (car val))))
7047 ((eq pred 'typep)
7048 (equal (car val) type))
7049 (t
7050 (error "%S is not a valid predicate" pred)))))
7051 ((eq val t)
7052 t)
7053 ((eq val 'head)
7054 nil)
7055 ((eq val 'last)
7056 (eq part-number total-parts))
7057 ((numberp val)
7058 (< length val))
7059 (t
7060 (error "%S is not a valid value" val))))
7062 (defun gnus-article-encrypt-body (protocol &optional n)
7063 "Encrypt the article body."
7064 (interactive
7065 (list
7066 (or gnus-article-encrypt-protocol
7067 (completing-read "Encrypt protocol: "
7068 gnus-article-encrypt-protocol-alist
7069 nil t))
7070 current-prefix-arg))
7071 (let ((func (cdr (assoc protocol gnus-article-encrypt-protocol-alist))))
7072 (unless func
7073 (error "Can't find the encrypt protocol %s" protocol))
7074 (if (member gnus-newsgroup-name '("nndraft:delayed"
7075 "nndraft:drafts"
7076 "nndraft:queue"))
7077 (error "Can't encrypt the article in group %s"
7078 gnus-newsgroup-name))
7079 (gnus-summary-iterate n
7080 (save-excursion
7081 (set-buffer gnus-summary-buffer)
7082 (let ((mail-parse-charset gnus-newsgroup-charset)
7083 (mail-parse-ignored-charsets gnus-newsgroup-ignored-charsets)
7084 (summary-buffer gnus-summary-buffer)
7085 references point)
7086 (gnus-set-global-variables)
7087 (when (gnus-group-read-only-p)
7088 (error "The current newsgroup does not support article encrypt"))
7089 (gnus-summary-show-article t)
7090 (setq references
7091 (or (mail-header-references gnus-current-headers) ""))
7092 (set-buffer gnus-article-buffer)
7093 (let* ((inhibit-read-only t)
7094 (headers
7095 (mapcar (lambda (field)
7096 (and (save-restriction
7097 (message-narrow-to-head)
7098 (goto-char (point-min))
7099 (search-forward field nil t))
7100 (prog2
7101 (message-narrow-to-field)
7102 (buffer-string)
7103 (delete-region (point-min) (point-max))
7104 (widen))))
7105 '("Content-Type:" "Content-Transfer-Encoding:"
7106 "Content-Disposition:"))))
7107 (message-narrow-to-head)
7108 (message-remove-header "MIME-Version")
7109 (goto-char (point-max))
7110 (setq point (point))
7111 (insert (apply 'concat headers))
7112 (widen)
7113 (narrow-to-region point (point-max))
7114 (let ((message-options message-options))
7115 (message-options-set 'message-sender user-mail-address)
7116 (message-options-set 'message-recipients user-mail-address)
7117 (message-options-set 'message-sign-encrypt 'not)
7118 (funcall func))
7119 (goto-char (point-min))
7121 (widen)
7122 (gnus-summary-edit-article-done
7123 references nil summary-buffer t))
7124 (when gnus-keep-backlog
7125 (gnus-backlog-remove-article
7126 (car gnus-article-current) (cdr gnus-article-current)))
7127 (save-excursion
7128 (when (get-buffer gnus-original-article-buffer)
7129 (set-buffer gnus-original-article-buffer)
7130 (setq gnus-original-article nil)))
7131 (when gnus-use-cache
7132 (gnus-cache-update-article
7133 (car gnus-article-current) (cdr gnus-article-current))))))))
7136 "The following specs can be used:
7137 %t The security MIME type
7138 %i Additional info
7139 %d Details
7140 %D Details if button is pressed")
7143 "The following specs can be used:
7144 %t The security MIME type
7145 %i Additional info
7146 %d Details
7147 %D Details if button is pressed")
7149 (defvar gnus-mime-security-button-line-format-alist
7150 '((?t gnus-tmp-type ?s)
7151 (?i gnus-tmp-info ?s)
7152 (?d gnus-tmp-details ?s)
7153 (?D gnus-tmp-pressed-details ?s)))
7155 (defvar gnus-mime-security-button-map
7156 (let ((map (make-sparse-keymap)))
7157 (unless (>= (string-to-number emacs-version) 21)
7158 (set-keymap-parent map gnus-article-mode-map))
7159 (define-key map gnus-mouse-2 'gnus-article-push-button)
7161 map))
7163 (defvar gnus-mime-security-details-buffer nil)
7165 (defvar gnus-mime-security-button-pressed nil)
7167 (defvar gnus-mime-security-show-details-inline t
7168 "If non-nil, show details in the article buffer.")
7170 (defun gnus-mime-security-verify-or-decrypt (handle)
7171 (mm-remove-parts (cdr handle))
7172 (let ((region (mm-handle-multipart-ctl-parameter handle 'gnus-region))
7173 point (inhibit-read-only t))
7174 (if region
7175 (goto-char (car region)))
7176 (save-restriction
7177 (narrow-to-region (point) (point))
7178 (with-current-buffer (mm-handle-multipart-original-buffer handle)
7179 (let* ((mm-verify-option 'known)
7180 (mm-decrypt-option 'known)
7181 (nparts (mm-possibly-verify-or-decrypt (cdr handle) handle)))
7182 (unless (eq nparts (cdr handle))
7183 (mm-destroy-parts (cdr handle))
7184 (setcdr handle nparts))))
7185 (setq point (point))
7186 (gnus-mime-display-security handle)
7187 (goto-char (point-max)))
7188 (when region
7189 (delete-region (point) (cdr region))
7190 (set-marker (car region) nil)
7191 (set-marker (cdr region) nil))
7192 (goto-char point)))
7194 (defun gnus-mime-security-show-details (handle)
7195 (let ((details (mm-handle-multipart-ctl-parameter handle 'gnus-details)))
7196 (if (not details)
7197 (gnus-message 5 "No details.")
7198 (if gnus-mime-security-show-details-inline
7199 (let ((gnus-mime-security-button-pressed
7200 (not (get-text-property (point) 'gnus-mime-details)))
7201 (gnus-mime-security-button-line-format
7202 (get-text-property (point) 'gnus-line-format))
7203 (inhibit-read-only t))
7204 (forward-char -1)
7205 (while (eq (get-text-property (point) 'gnus-line-format)
7206 gnus-mime-security-button-line-format)
7207 (forward-char -1))
7208 (forward-char)
7209 (save-restriction
7210 (narrow-to-region (point) (point))
7211 (gnus-insert-mime-security-button handle))
7212 (delete-region (point)
7213 (or (text-property-not-all
7214 (point) (point-max)
7215 'gnus-line-format
7216 gnus-mime-security-button-line-format)
7217 (point-max))))
7218 ;; Not inlined.
7219 (if (gnus-buffer-live-p gnus-mime-security-details-buffer)
7220 (with-current-buffer gnus-mime-security-details-buffer
7221 (erase-buffer)
7222 t)
7223 (setq gnus-mime-security-details-buffer
7224 (gnus-get-buffer-create "*MIME Security Details*")))
7225 (with-current-buffer gnus-mime-security-details-buffer
7226 (insert details)
7227 (goto-char (point-min)))
7228 (pop-to-buffer gnus-mime-security-details-buffer)))))
7230 (defun gnus-mime-security-press-button (handle)
7231 (save-excursion
7232 (if (mm-handle-multipart-ctl-parameter handle 'gnus-info)
7233 (gnus-mime-security-show-details handle)
7234 (gnus-mime-security-verify-or-decrypt handle))))
7236 (defun gnus-insert-mime-security-button (handle &optional displayed)
7237 (let* ((protocol (mm-handle-multipart-ctl-parameter handle 'protocol))
7238 (gnus-tmp-type
7239 (concat
7240 (or (nth 2 (assoc protocol mm-verify-function-alist))
7241 (nth 2 (assoc protocol mm-decrypt-function-alist))
7242 "Unknown")
7243 (if (equal (car handle) "multipart/signed")
7244 " Signed" " Encrypted")
7245 " Part"))
7246 (gnus-tmp-info
7247 (or (mm-handle-multipart-ctl-parameter handle 'gnus-info)
7248 "Undecided"))
7249 (gnus-tmp-details
7250 (mm-handle-multipart-ctl-parameter handle 'gnus-details))
7251 gnus-tmp-pressed-details
7252 b e)
7253 (setq gnus-tmp-details
7254 (if gnus-tmp-details
7256 ""))
7257 (setq gnus-tmp-pressed-details
7258 (if gnus-mime-security-button-pressed gnus-tmp-details ""))
7259 (unless (bolp)
7261 (setq b (point))
7262 (gnus-eval-format
7263 gnus-mime-security-button-line-format
7264 gnus-mime-security-button-line-format-alist
7265 `(,@(gnus-local-map-property gnus-mime-security-button-map)
7266 gnus-callback gnus-mime-security-press-button
7267 gnus-line-format ,gnus-mime-security-button-line-format
7268 gnus-mime-details ,gnus-mime-security-button-pressed
7269 article-type annotation
7270 gnus-data ,handle))
7271 (setq e (if (bolp)
7272 ;; Exclude a newline.
7273 (1- (point))
7274 (point)))
7275 (widget-convert-button
7276 'link b e
7277 :mime-handle handle
7278 :action 'gnus-widget-press-button
7279 :button-keymap gnus-mime-security-button-map
7280 :help-echo
7281 (lambda (widget/window &optional overlay pos)
7282 ;; Needed to properly clear the message due to a bug in
7283 ;; wid-edit (XEmacs only).
7284 (when (boundp 'help-echo-owns-message)
7285 (setq help-echo-owns-message t))
7286 (format
7287 "%S: show detail"
7288 (aref gnus-mouse-2 0))))))
7290 (defun gnus-mime-display-security (handle)
7291 (save-restriction
7292 (narrow-to-region (point) (point))
7293 (unless (gnus-unbuttonized-mime-type-p (car handle))
7294 (gnus-insert-mime-security-button handle))
7295 (gnus-mime-display-mixed (cdr handle))
7296 (unless (bolp)
7298 (unless (gnus-unbuttonized-mime-type-p (car handle))
7299 (let ((gnus-mime-security-button-line-format
7300 gnus-mime-security-button-end-line-format))
7301 (gnus-insert-mime-security-button handle)))
7302 (mm-set-handle-multipart-parameter
7303 handle 'gnus-region
7304 (cons (set-marker (make-marker) (point-min))
7305 (set-marker (make-marker) (point-max))))))
7307 (gnus-ems-redefine)
7309 (provide 'gnus-art)
7311 (run-hooks 'gnus-art-load-hook)
7313 ;;; arch-tag: 2654516f-6279-48f9-a83b-05c1fa450c33
7314 ;;; gnus-art.el ends here