| blob | ac2aed4ba71d57c8294a4ef6f975ed7c2625b030 |
1 ;;; gnus-art.el --- article mode commands for Gnus
2 ;; Copyright (C) 1996,97,98 Free Software Foundation, Inc.
4 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
5 ;; Keywords: news
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
12 ;; any later version.
14 ;; GNU Emacs is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 ;; Boston, MA 02111-1307, USA.
24 ;;; Commentary:
26 ;;; Code:
40 "Article display."
45 "Hiding article parts."
50 "Article highlighting."
56 "Article signatures."
61 "Article headers."
66 "Special commands on articles."
71 "Fontisizing articles."
76 "Saving articles."
81 "Worshiping the MIME wonder."
86 "Pushable buttons in the article buffer."
91 "Other article options."
115 "*All headers that start with this regexp will be hidden.
116 This variable can also be a list of regexps of headers to be ignored.
117 If `gnus-visible-headers' is non-nil, this variable will be ignored."
119 regexp
124 "From:\\|^Newsgroups:\\|^Subject:\\|^Date:\\|^Followup-To:\\|^Reply-To:\\|^Organization:\\|^Summary:\\|^Keywords:\\|^To:\\|^Cc:\\|^Posted-To:\\|^Mail-Copies-To:\\|^Apparently-To:\\|^Gnus-Warning:\\|^Resent-From:\\|X-Sent:"
125 "*All headers that do not match this regexp will be hidden.
126 This variable can also be a list of regexp of headers to remain visible.
127 If this variable is non-nil, `gnus-ignored-headers' will be ignored."
133 regexp)
139 "*This variable is a list of regular expressions.
140 If it is non-nil, headers that match the regular expressions will
141 be placed first in the article buffer in the sequence specified by
142 this list."
147 "Headers that are only to be displayed if they have interesting data.
148 Possible values in this list are `empty', `newsgroups', `followup-to',
149 `reply-to', `date', `long-to', and `many-to'."
160 "Regexp matching signature separator.
161 This can also be a list of regexps. In that case, it will be checked
162 from head to tail looking for a separator. Searches will be done from
163 the end of the buffer."
168 "Provide a limit to what is considered a signature.
169 If it is a number, no signature may not be longer (in characters) than
170 that number. If it is a floating point number, no signature may be
171 longer (in lines) than that number. If it is a function, the function
172 will be called without any parameters, and if it returns nil, there is
173 no signature in the buffer. If it is a string, it will be used as a
174 regexp. If it matches, the text in question is not a signature."
182 "Property list to use for hiding text."
187 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | xv -quit -"
188 "*String or function to be executed to display an X-Face header.
189 If it is a string, the command will be executed in a sub-shell
190 asynchronously. The compressed face will be piped to this command."
195 "Regexp matching posters whose face shouldn't be shown automatically."
201 "\\(\\s-\\|^\\|[-\"]\\|\\s(\\|\\s)\\)\\(%s\\(\\w+\\(\\s-+\\w+\\)*[.,]?\\)%s\\)\\(\\s-\\|[-?!.,;:\"]\\|\\s(\\|\\s)\\)")
217 types)))
218 "*Alist that says how to fontify certain phrases.
219 Each item looks like this:
223 The first element is a regular expression to be matched. The second
224 is a number that says what regular expression grouping used to find
225 the entire emphasized word. The third is a number that says what
226 regexp grouping should be displayed and highlighted. The fourth
227 is the face used for highlighting."
229 regexp
232 face))
236 "Face used for displaying strong emphasized text (*word*)."
240 "Face used for displaying italic emphasized text (/word/)."
244 "Face used for displaying underlined emphasized text (_word_)."
248 "Face used for displaying underlined bold emphasized text (_*word*_)."
252 "Face used for displaying underlined italic emphasized text (_/word/_)."
256 "Face used for displaying bold italic emphasized text (/*word*/)."
261 "Face used for displaying underlined bold italic emphasized text.
262 Esample: (_/*word*/_)."
266 "Format for display of Date headers in article bodies.
267 See `format-time-string' for the possible values.
269 The variable can also be function, which should return a complete Date
270 header. The function is called with one argument, the time, which can
271 be fed to `format-time-string'."
282 "*If non-nil, don't remove any headers before saving."
287 "*This variable says how much prompting is to be done when saving articles.
288 If it is nil, no prompting will be done, and the articles will be
289 saved to the default files. If this variable is `always', each and
290 every article that is saved will be preceded by a prompt, even when
291 saving large batches of articles. If this variable is neither nil not
292 `always', there the user will be prompted once for a file name for
293 each invocation of the saving commands."
300 "Headers to keep if `gnus-save-all-headers' is nil.
301 If `gnus-save-all-headers' is non-nil, this variable will be ignored.
302 If that variable is nil, however, all headers that match this regexp
303 will be kept while the rest will be deleted before saving."
308 "A function to save articles in your favourite format.
309 The function must be interactively callable (in other words, it must
310 be an Emacs command).
312 Gnus provides the following functions:
314 * gnus-summary-save-in-rmail (Rmail format)
315 * gnus-summary-save-in-mail (Unix mail format)
316 * gnus-summary-save-in-folder (MH folder)
317 * gnus-summary-save-in-file (article format)
318 * gnus-summary-save-in-vm (use VM's folder format)
319 * gnus-summary-write-to-file (article format -- overwrite)."
329 "A function generating a file name to save articles in Rmail format.
330 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
335 "A function generating a file name to save articles in Unix mail format.
336 The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
341 "A function generating a file name to save articles in MH folder.
342 The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
347 "A function generating a file name to save articles in article format.
348 The function is called with NEWSGROUP, HEADERS, and optional
349 LAST-FILE."
356 "*Variable used to suggest where articles are to be saved.
357 For instance, if you would like to save articles related to Gnus in
359 you could set this variable to something like:
364 This variable is an alist where the where the key is the match and the
365 value is a list of possible files to save in if the match is non-nil.
367 If the match is a string, it is used as a regexp match on the
368 article. If the match is a symbol, that symbol will be funcalled
369 from the buffer of the article to be saved with the newsgroup as the
370 parameter. If it is a list, it will be evaled in the same buffer.
372 If this form or function returns a string, this string will be used as
373 a possible file name; and if it returns a non-nil list, that list will
374 be used as possible file names."
381 "*If nil, MIME-decode even if there is no Mime-Version header."
386 "Function to process a MIME message.
387 The function is called from the article buffer."
392 "*Function to decode MIME encoded words.
393 The function is called from the article buffer."
403 "Function to decode ``localized RFC 822 messages''.
404 The function is called from the article buffer."
409 "*Regexp describing what to use as article page delimiters.
411 beginning of a line."
416 "*The format specification for the article mode line.
417 See `gnus-summary-mode-line-format' for a closer description."
422 "*A hook for Gnus article mode."
427 "*Hook run after the creation of the article mode menu."
432 "*A hook called after an article has been prepared in the article buffer.
433 If you want to run a special decoding program like nkf, use this hook."
438 "*A hook called after successfully hiding a PGP signature."
443 "Face used for highlighting buttons in the article buffer.
445 An article button is a piece of text that you can activate by pressing
446 `RET' or `mouse-2' above it."
451 "Face used for mouse highlighting in the article buffer.
453 Article buttons will be displayed in this face when the cursor is
454 above them."
459 "Face used for highlighting a signature in the article buffer.
460 Obsolete; use the face `gnus-signature-face' for customizations instead."
468 "Face used for highlighting a signature in the article buffer."
481 "Face used for displaying from headers."
494 "Face used for displaying subject headers."
507 "Face used for displaying newsgroups headers."
520 "Face used for displaying header names."
541 "*Controls highlighting of article header.
543 An alist of the form (HEADER NAME CONTENT).
545 HEADER is a regular expression which should match the name of an
546 header header and NAME and CONTENT are either face names or nil.
548 The name of each header field will be displayed using the face
549 specified by the first element in the list where HEADER match the
550 header name and NAME is non-nil. Similarly, the content will be
551 displayed by the first non-nil matching CONTENT face."
562 ;;; Internal variables
572 table)
573 "Syntax table used in article mode buffers.
580 gnus-summary-mode-line-format-alist))
587 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
595 "Remove hidden text properties from region between B and E."
602 "Hide text of TYPE between B and E."
607 "Unhide text of TYPE between B and E."
615 "Hide text of TYPE in the current buffer."
623 "Delete text of TYPE in the current buffer."
632 "Delete all invisible text in the current buffer."
641 "Say whether any text of type TYPE exists in the buffer."
645 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
653 i))
656 "Toggle whether to hide unwanted headers and possibly sort them as well.
657 If given a negative prefix, always show; if given a positive prefix,
658 always hide."
662 ;; Show boring headers as well.
664 ;; This function might be inhibited.
671 gnus-hidden-properties))
675 gnus-ignored-headers)
681 gnus-visible-headers)
686 beg)
687 ;; First we narrow to just the headers.
690 ;; Hide any "From " lines at the beginning of (mail) articles.
697 ;; Then treat the rest of the header lines.
703 ;; Then we use the two regular expressions
704 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
705 ;; select which header lines is to remain visible in the
706 ;; article buffer.
710 ;; Mark the rank of the header.
722 ;; We make the unwanted headers invisible.
725 ;; Suggested by Sudish Joseph <joseph@cis.ohio-state.edu>.
727 ;; Work around XEmacs lossage.
731 "Toggle hiding of headers that aren't very interesting.
732 If given a negative prefix, always show; if given a positive prefix,
733 always hide."
742 elem)
748 ;; Hide empty headers.
760 ;; Hide boring Newsgroups header.
765 gnus-newsgroup-name
776 from reply-to
821 "Translate M******** sm*rtq**t*s into proper text."
826 "Translate all characters in the body of the article according to FROM and TO.
827 FROM is a string of characters to translate from; to is a string of
828 characters to translate to."
844 "Translate overstrikes into bold text."
853 ;; We do the boldification/underlining by hiding the
854 ;; overstrikes and putting the proper text property
855 ;; on the letters.
871 "Format too long lines."
889 "Remove carriage returns from an article."
898 "Remove all trailing blank lines from the article."
913 "Look for an X-Face header and display it if present."
916 ;; Delete the old process, if any.
921 from last)
929 ;; Check whether this face is censored.
933 from))))
934 ;; Has to be present.
936 ;; This used to try to do multiple faces (`while' instead of
937 ;; `when' above), but (a) sending multiple EOFs to xv doesn't
938 ;; work (b) it can crash some versions of Emacs (c) are
939 ;; multiple faces really something to encourage?
942 ;; We now have the area of the buffer where the X-Face is stored.
946 ;; We display the face.
948 ;; The command is a lisp function, so we call it.
952 ;; The command is a string, so we interpret the command
953 ;; as a, well, command, and fork it off.
957 "article-x-face" nil shell-file-name shell-command-switch
958 gnus-article-x-face-command))
963 "Emergency hack function for avoiding problems when decoding."
966 ;; Remove encoded TABs.
969 ;; Remove encoded newlines.
977 "Hack to remove QP encoding from headers."
981 string)
1001 "Do a naive translation of a quoted-printable-encoded article.
1002 This is in no way, shape or form meant as a replacement for real MIME
1003 processing, but is simply a stop-gap measure until MIME support is
1004 written.
1005 If FORCE, decode the article whether it is marked as quoted-printable
1006 or not."
1020 "Decode Quoted-Printable in the current buffer."
1024 "Decode Quoted-Printable in the region between FROM and TO."
1042 "Toggle hiding of any PGP headers and signatures in the current article.
1043 If given a negative prefix, always show; if given a positive prefix,
1044 always hide."
1049 buffer-read-only beg end)
1052 ;; Hide the "header".
1056 ;; Hide the actual signature.
1060 end
1063 ;; Perhaps we shouldn't hide to the end of the buffer
1064 ;; if there is no end to the signature?
1066 ;; Hide "- " PGP quotation markers.
1077 "Toggle hiding of any PEM headers and signatures in the current article.
1078 If given a negative prefix, always show; if given a positive prefix,
1079 always hide."
1086 ;; hide the horrendously ugly "header".
1088 nil
1089 t)
1092 end
1097 ;; hide the trailer as well
1099 nil
1100 t)
1105 "Hide the signature in the current article.
1106 If given a negative prefix, always show; if given a positive prefix,
1107 always hide."
1118 "Remove all blank lines from the beginning of the article."
1122 buffer-read-only)
1130 "Replace consecutive blank lines with one empty line."
1134 buffer-read-only)
1135 ;; First make all blank lines empty.
1140 ;; Then replace multiple empty lines with a single empty line.
1147 "Remove all white space from the beginning of the lines in the article."
1151 buffer-read-only)
1158 "Strip leading, trailing and multiple blank lines."
1165 "Strip all blank lines."
1169 buffer-read-only)
1178 "Narrow to the signature; return t if a signature is found, else nil."
1183 ;; We have a MIMEish article, so we use the MIME data to narrow.
1192 ;; Check whether we have some limits to what we consider
1193 ;; to be a signature.
1196 limit limited)
1208 limits nil)))
1211 t)))))
1214 "Search the current buffer for the signature separator.
1215 Put point at the beginning of the signature separator."
1224 seps))
1225 t
1227 nil)))
1235 "Render HTML."
1262 "Return the current prefix arg as a number, or 0 if no prefix."
1268 "Return nil if hiding is necessary.
1269 Arg can be nil or a number. Nil and positive means hide, negative
1270 means show, 0 means toggle."
1278 nil)
1284 nil)))))))
1287 "Say whether the current buffer contains hidden text of type TYPE."
1294 'hidden
1298 "Show all hidden text of type TYPE.
1299 If HIDE, hide the text instead."
1304 beg)
1314 t)))
1326 "Convert DATE date to universal time in the current article.
1327 If TYPE is `local', convert to local time; if it is `lapsed', output
1328 how much time has lapsed since DATE."
1335 header))
1338 bface eface newline)
1344 ;; Delete any old Date headers.
1356 ;; Do highlighting.
1368 "Return a DATE line of TYPE."
1370 ;; Convert to the local timezone. We have to slap a
1371 ;; `condition-case' round the calls to the timezone
1372 ;; functions since they aren't particularly resistant to
1373 ;; buggy dates.
1378 ;; Convert to Universal Time.
1384 ;; Get the original date from the article.
1387 ;; Let the user define the format.
1391 gnus-article-time-format
1397 "Date: "
1403 ;; ISO 8601.
1406 "Date: "
1412 ;; Do an X-Sent lapsed format.
1414 ;; If the date is seriously mangled, the timezone functions are
1415 ;; liable to bug out, so we ignore all errors.
1431 num prev)
1439 "X-Sent: "
1440 ;; This is a bit convoluted, but basically we go
1441 ;; through the time units for years, weeks, etc,
1442 ;; and divide things to see whether that results
1443 ;; in positive answers.
1447 ;; The (remaining) seconds are too few to
1448 ;; be divided into this time unit.
1449 ""
1450 ;; It's big enough, so we output it.
1459 ;; If dates are odd, then it might appear like the
1460 ;; article was sent in the future.
1462 " ago"
1468 "Convert the current article date to the local timezone."
1473 "Convert the current article date to what it was originally.
1474 This is only useful if you have used some other date conversion
1475 function and want to see what the date was before converting."
1480 "Convert the current article date to time lapsed since it was sent."
1485 "Function to be run from a timer to update the lapsed time line."
1496 "Start a timer to update the X-Sent header in the article buffers.
1497 The numerical prefix says how frequently (in seconds) the function
1498 is to run."
1507 "Stop the X-Sent timer."
1514 "Convert the current article date to the user-defined format.
1515 This format is defined by the `gnus-article-time-format' variable."
1520 "Convert the current article date to ISO8601."
1525 "Show all hidden text in the article buffer."
1532 "Emphasize text according to `gnus-emphasis-alist'."
1539 gnus-hidden-properties))
1540 regexp elem beg invisible visible face)
1563 ;;; Saving functions.
1566 "Save the currently selected article."
1568 ;; Remove headers according to `gnus-saved-headers'.
1578 ;; !!! Magic! The saving functions all save
1579 ;; `gnus-original-article-buffer' (or so they think), but we
1580 ;; bind that variable to our save-buffer.
1595 function group headers variable)
1598 result)
1600 result
1603 default-name)
1605 default-name)
1614 gnus-number-of-articles-to-be-saved)
1617 ;; Let the split methods have their say.
1619 ;; No split name was found.
1625 default-name))
1626 ;; A single group name is returned.
1635 default-name))
1636 ;; A single split name was found
1646 dir name)))
1647 ;; A list of splits was found.
1657 gnus-article-save-directory
1659 gnus-article-save-directory)))
1661 ;; Create the directory.
1663 ;; If we have read a directory, we append the default file name.
1667 ;; Possibly translate some characters.
1680 "If GROUP is an nndoc group, return the name of the parent group."
1685 "Append this article to Rmail file.
1686 Optional argument FILENAME specifies file name.
1687 Directory to save to is default to `gnus-article-save-directory'."
1689 "Save %s in rmail file:" filename
1690 gnus-rmail-save-name gnus-newsgroup-name
1697 filename)
1700 "Append this article to Unix mail file.
1701 Optional argument FILENAME specifies file name.
1702 Directory to save to is default to `gnus-article-save-directory'."
1704 "Save %s in Unix mail file:" filename
1705 gnus-mail-save-name gnus-newsgroup-name
1715 filename)
1718 "Append this article to file.
1719 Optional argument FILENAME specifies file name.
1720 Directory to save to is default to `gnus-article-save-directory'."
1722 "Save %s in file:" filename
1723 gnus-file-save-name gnus-newsgroup-name
1733 filename)
1736 "Write this article to a file.
1737 Optional argument FILENAME specifies file name.
1738 The directory to save in defaults to `gnus-article-save-directory'."
1742 "Append this article body to a file.
1743 Optional argument FILENAME specifies file name.
1744 The directory to save in defaults to `gnus-article-save-directory'."
1746 "Save %s body in file:" filename
1747 gnus-file-save-name gnus-newsgroup-name
1757 filename)
1760 "Pipe this article to subprocess."
1763 gnus-last-shell-command)
1767 "Shell command on %s: "
1771 gnus-number-of-articles-to-be-saved)
1773 gnus-last-shell-command))))
1782 ;;; Article file names when saving.
1785 "Capitalize NEWSGROUP name."
1791 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
1792 If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
1793 Otherwise, it is like ~/News/news/group/num."
1800 gnus-article-save-directory)))
1805 default
1809 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
1810 If variable `gnus-use-long-file-name' is non-nil, it is
1811 ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
1815 newsgroup
1818 gnus-article-save-directory)))
1823 default
1827 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
1828 If variable `gnus-use-long-file-name' is non-nil, it is
1829 ~/News/News.group. Otherwise, it is like ~/News/news/group/news."
1835 gnus-article-save-directory)))
1838 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
1839 If variable `gnus-use-long-file-name' is non-nil, it is
1840 ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
1844 newsgroup
1846 gnus-article-save-directory)))
1859 nil
1869 article-hide-boring-headers
1870 article-treat-overstrike
1872 article-remove-cr
1873 article-display-x-face
1874 article-de-quoted-unreadable
1875 article-mime-decode-quoted-printable
1876 article-hide-pgp
1877 article-hide-pem
1878 article-hide-signature
1879 article-remove-trailing-blank-lines
1880 article-strip-leading-blank-lines
1881 article-strip-multiple-blank-lines
1882 article-strip-leading-space
1883 article-strip-blank-lines
1884 article-strip-all-blank-lines
1885 article-date-local
1886 article-date-iso8601
1887 article-date-original
1888 article-date-ut
1889 article-date-user
1890 article-date-lapsed
1891 article-emphasize
1892 article-treat-dumbquotes
1894 \f
1895 ;;;
1896 ;;; Gnus article mode
1897 ;;;
1902 " " gnus-article-goto-next-page
1904 [delete] gnus-article-goto-prev-page
1905 "\C-c^" gnus-article-refer-article
1906 "h" gnus-article-show-summary
1907 "s" gnus-article-show-summary
1908 "\C-c\C-m" gnus-article-mail
1909 "?" gnus-article-describe-briefly
1910 gnus-mouse-2 gnus-article-push-button
1914 "e" gnus-article-edit
1915 "<" beginning-of-buffer
1916 ">" end-of-buffer
1917 "\C-c\C-i" gnus-info-find-node
1918 "\C-c\C-b" gnus-bug
1920 "\C-d" gnus-article-read-summary-keys
1921 "\M-*" gnus-article-read-summary-keys
1922 "\M-#" gnus-article-read-summary-keys
1923 "\M-^" gnus-article-read-summary-keys
1924 "\M-g" gnus-article-read-summary-keys)
1926 (substitute-key-definition
1927 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
1929 (defun gnus-article-make-menu-bar ()
1930 (gnus-turn-off-edit-menu 'article)
1931 (unless (boundp 'gnus-article-article-menu)
1932 (easy-menu-define
1933 gnus-article-article-menu gnus-article-mode-map ""
1934 '("Article"
1935 ["Scroll forwards" gnus-article-goto-next-page t]
1936 ["Scroll backwards" gnus-article-goto-prev-page t]
1937 ["Show summary" gnus-article-show-summary t]
1938 ["Fetch Message-ID at point" gnus-article-refer-article t]
1939 ["Mail to address at point" gnus-article-mail t]
1940 ["Send a bug report" gnus-bug t]))
1942 (easy-menu-define
1943 gnus-article-treatment-menu gnus-article-mode-map ""
1944 '("Treatment"
1945 ["Hide headers" gnus-article-hide-headers t]
1946 ["Hide signature" gnus-article-hide-signature t]
1947 ["Hide citation" gnus-article-hide-citation t]
1948 ["Treat overstrike" gnus-article-treat-overstrike t]
1949 ["Remove carriage return" gnus-article-remove-cr t]
1950 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]))
1952 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
1954 (when (boundp 'gnus-summary-post-menu)
1955 (define-key gnus-article-mode-map [menu-bar post]
1956 (cons "Post" gnus-summary-post-menu)))
1958 (gnus-run-hooks 'gnus-article-menu-hook)))
1960 (defun gnus-article-mode ()
1961 "Major mode for displaying an article.
1963 All normal editing commands are switched off.
1965 The following commands are available in addition to all summary mode
1966 commands:
1975 (interactive)
1976 (when (gnus-visual-p 'article-menu 'menu)
1977 (gnus-article-make-menu-bar))
1978 (gnus-simplify-mode-line)
1979 (setq mode-name "Article")
1980 (setq major-mode 'gnus-article-mode)
1981 (make-local-variable 'minor-mode-alist)
1982 (unless (assq 'gnus-show-mime minor-mode-alist)
1983 (push (list 'gnus-show-mime " MIME") minor-mode-alist))
1984 (use-local-map gnus-article-mode-map)
1985 (gnus-update-format-specifications nil 'article-mode)
1986 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
1987 (make-local-variable 'gnus-page-broken)
1988 (make-local-variable 'gnus-button-marker-list)
1989 (make-local-variable 'gnus-article-current-summary)
1990 (gnus-set-default-directory)
1991 (buffer-disable-undo (current-buffer))
1992 (setq buffer-read-only t)
1993 (set-syntax-table gnus-article-mode-syntax-table)
1994 (gnus-run-hooks 'gnus-article-mode-hook))
1996 (defun gnus-article-setup-buffer ()
1997 "Initialize the article buffer."
1998 (let* ((name (if gnus-single-article-buffer "*Article*"
1999 (concat "*Article " gnus-newsgroup-name "*")))
2000 (original
2002 (concat " *Original Article"
2003 (substring name (match-end 0))))))
2004 (setq gnus-article-buffer name)
2005 (setq gnus-original-article-buffer original)
2006 ;; This might be a variable local to the summary buffer.
2007 (unless gnus-single-article-buffer
2008 (save-excursion
2009 (set-buffer gnus-summary-buffer)
2010 (setq gnus-article-buffer name)
2011 (setq gnus-original-article-buffer original)
2012 (gnus-set-global-variables)))
2013 ;; Init original article buffer.
2014 (save-excursion
2015 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
2016 (buffer-disable-undo (current-buffer))
2017 (setq major-mode 'gnus-original-article-mode)
2018 (make-local-variable 'gnus-original-article))
2019 (if (get-buffer name)
2020 (save-excursion
2021 (set-buffer name)
2022 (buffer-disable-undo (current-buffer))
2023 (setq buffer-read-only t)
2024 (unless (eq major-mode 'gnus-article-mode)
2025 (gnus-article-mode))
2026 (current-buffer))
2027 (save-excursion
2028 (set-buffer (gnus-get-buffer-create name))
2029 (gnus-article-mode)
2030 (make-local-variable 'gnus-summary-buffer)
2031 (current-buffer)))))
2033 ;; Set article window start at LINE, where LINE is the number of lines
2034 ;; from the head of the article.
2035 (defun gnus-article-set-window-start (&optional line)
2036 (set-window-start
2037 (get-buffer-window gnus-article-buffer t)
2038 (save-excursion
2039 (set-buffer gnus-article-buffer)
2040 (goto-char (point-min))
2041 (if (not line)
2042 (point-min)
2043 (gnus-message 6 "Moved to bookmark")
2045 (forward-line line)
2046 (point)))))
2048 (defun gnus-article-prepare (article &optional all-headers header)
2049 "Prepare ARTICLE in article mode buffer.
2050 ARTICLE should either be an article number or a Message-ID.
2051 If ARTICLE is an id, HEADER should be the article headers.
2052 If ALL-HEADERS is non-nil, no headers are hidden."
2053 (save-excursion
2054 ;; Make sure we start in a summary buffer.
2055 (unless (eq major-mode 'gnus-summary-mode)
2056 (set-buffer gnus-summary-buffer))
2057 (setq gnus-summary-buffer (current-buffer))
2058 (let* ((gnus-article (if header (mail-header-number header) article))
2059 (summary-buffer (current-buffer))
2060 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
2061 (group gnus-newsgroup-name)
2062 result)
2063 (save-excursion
2064 (gnus-article-setup-buffer)
2065 (set-buffer gnus-article-buffer)
2066 ;; Deactivate active regions.
2067 (when (and (boundp 'transient-mark-mode)
2068 transient-mark-mode)
2069 (setq mark-active nil))
2070 (if (not (setq result (let ((buffer-read-only nil))
2071 (gnus-request-article-this-buffer
2072 article group))))
2073 ;; There is no such article.
2074 (save-excursion
2075 (when (and (numberp article)
2076 (not (memq article gnus-newsgroup-sparse)))
2077 (setq gnus-article-current
2078 (cons gnus-newsgroup-name article))
2079 (set-buffer gnus-summary-buffer)
2080 (setq gnus-current-article article)
2081 (if (eq (gnus-article-mark article) gnus-undownloaded-mark)
2082 (progn
2083 (gnus-summary-set-agent-mark article)
2084 (message "Message marked for downloading"))
2085 (gnus-summary-mark-article article gnus-canceled-mark)
2086 (unless (memq article gnus-newsgroup-sparse)
2087 (gnus-error 1
2088 "No such article (may have expired or been canceled)")))))
2089 (if (or (eq result 'pseudo)
2090 (eq result 'nneething))
2091 (progn
2092 (save-excursion
2093 (set-buffer summary-buffer)
2094 (push article gnus-newsgroup-history)
2095 (setq gnus-last-article gnus-current-article
2096 gnus-current-article 0
2097 gnus-current-headers nil
2098 gnus-article-current nil)
2099 (if (eq result 'nneething)
2100 (gnus-configure-windows 'summary)
2101 (gnus-configure-windows 'article))
2102 (gnus-set-global-variables))
2103 (gnus-set-mode-line 'article))
2104 ;; The result from the `request' was an actual article -
2105 ;; or at least some text that is now displayed in the
2106 ;; article buffer.
2107 (when (and (numberp article)
2108 (not (eq article gnus-current-article)))
2109 ;; Seems like a new article has been selected.
2110 ;; `gnus-current-article' must be an article number.
2111 (save-excursion
2112 (set-buffer summary-buffer)
2113 (push article gnus-newsgroup-history)
2114 (setq gnus-last-article gnus-current-article
2115 gnus-current-article article
2116 gnus-current-headers
2117 (gnus-summary-article-header gnus-current-article)
2118 gnus-article-current
2119 (cons gnus-newsgroup-name gnus-current-article))
2120 (unless (vectorp gnus-current-headers)
2121 (setq gnus-current-headers nil))
2122 (gnus-summary-goto-subject gnus-current-article)
2123 (when (gnus-summary-show-thread)
2124 ;; If the summary buffer really was folded, the
2125 ;; previous goto may not actually have gone to
2126 ;; the right article, but the thread root instead.
2127 ;; So we go again.
2128 (gnus-summary-goto-subject gnus-current-article))
2129 (gnus-run-hooks 'gnus-mark-article-hook)
2130 (gnus-set-mode-line 'summary)
2131 (when (gnus-visual-p 'article-highlight 'highlight)
2132 (gnus-run-hooks 'gnus-visual-mark-article-hook))
2133 ;; Set the global newsgroup variables here.
2134 ;; Suggested by Jim Sisolak
2135 ;; <sisolak@trans4.neep.wisc.edu>.
2136 (gnus-set-global-variables)
2137 (setq gnus-have-all-headers
2138 (or all-headers gnus-show-all-headers))))
2139 (when (or (numberp article)
2140 (stringp article))
2141 ;; Hooks for getting information from the article.
2142 ;; This hook must be called before being narrowed.
2143 (let (buffer-read-only)
2144 (gnus-run-hooks 'gnus-tmp-internal-hook)
2145 (gnus-run-hooks 'gnus-article-prepare-hook)
2146 ;; Decode MIME message.
2147 (if gnus-show-mime
2148 (if (or (not gnus-strict-mime)
2149 (gnus-fetch-field "Mime-Version"))
2150 (let ((coding-system-for-write 'binary)
2151 (coding-system-for-read 'binary))
2152 (funcall gnus-show-mime-method))
2153 (funcall gnus-decode-encoded-word-method))
2154 (funcall gnus-show-traditional-method))
2155 ;; Perform the article display hooks.
2156 (gnus-run-hooks 'gnus-article-display-hook))
2157 ;; Do page break.
2158 (goto-char (point-min))
2159 (setq gnus-page-broken
2160 (when gnus-break-pages
2161 (gnus-narrow-to-page)
2162 t)))
2163 (gnus-set-mode-line 'article)
2164 (gnus-configure-windows 'article)
2165 (goto-char (point-min))
2167 (set-window-point (get-buffer-window (current-buffer)) (point))
2168 t))))))
2170 (defun gnus-article-wash-status ()
2171 "Return a string which display status of article washing."
2172 (save-excursion
2173 (set-buffer gnus-article-buffer)
2174 (let ((cite (gnus-article-hidden-text-p 'cite))
2175 (headers (gnus-article-hidden-text-p 'headers))
2176 (boring (gnus-article-hidden-text-p 'boring-headers))
2177 (pgp (gnus-article-hidden-text-p 'pgp))
2178 (pem (gnus-article-hidden-text-p 'pem))
2179 (signature (gnus-article-hidden-text-p 'signature))
2180 (overstrike (gnus-article-hidden-text-p 'overstrike))
2181 (emphasis (gnus-article-hidden-text-p 'emphasis))
2182 (mime gnus-show-mime))
2183 (format "%c%c%c%c%c%c%c"
2184 (if cite ?c ? )
2185 (if (or headers boring) ?h ? )
2186 (if (or pgp pem) ?p ? )
2187 (if signature ?s ? )
2188 (if overstrike ?o ? )
2189 (if mime ?m ? )
2190 (if emphasis ?e ? )))))
2192 (fset 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
2194 (defun gnus-article-maybe-hide-headers ()
2195 "Hide unwanted headers if `gnus-have-all-headers' is nil.
2196 Provided for backwards compatibility."
2197 (or (save-excursion (set-buffer gnus-summary-buffer) gnus-have-all-headers)
2198 gnus-inhibit-hiding
2199 (gnus-article-hide-headers)))
2201 ;;; Article savers.
2203 (defun gnus-output-to-file (file-name)
2204 "Append the current article to a file named FILE-NAME."
2205 (let ((artbuf (current-buffer)))
2206 (nnheader-temp-write nil
2207 (insert-buffer-substring artbuf)
2208 ;; Append newline at end of the buffer as separator, and then
2209 ;; save it to file.
2210 (goto-char (point-max))
2212 (append-to-file (point-min) (point-max) file-name)
2213 t)))
2215 (defun gnus-narrow-to-page (&optional arg)
2216 "Narrow the article buffer to a page.
2217 If given a numerical ARG, move forward ARG pages."
2218 (interactive "P")
2219 (setq arg (if arg (prefix-numeric-value arg) 0))
2220 (save-excursion
2221 (set-buffer gnus-article-buffer)
2222 (goto-char (point-min))
2223 (widen)
2224 ;; Remove any old next/prev buttons.
2225 (when (gnus-visual-p 'page-marker)
2226 (let ((buffer-read-only nil))
2227 (gnus-remove-text-with-property 'gnus-prev)
2228 (gnus-remove-text-with-property 'gnus-next)))
2229 (when
2230 (cond ((< arg 0)
2231 (re-search-backward page-delimiter nil 'move (1+ (abs arg))))
2232 ((> arg 0)
2233 (re-search-forward page-delimiter nil 'move arg)))
2234 (goto-char (match-end 0)))
2235 (narrow-to-region
2236 (point)
2237 (if (re-search-forward page-delimiter nil 'move)
2238 (match-beginning 0)
2239 (point)))
2240 (when (and (gnus-visual-p 'page-marker)
2241 (not (= (point-min) 1)))
2242 (save-excursion
2243 (goto-char (point-min))
2244 (gnus-insert-prev-page-button)))
2245 (when (and (gnus-visual-p 'page-marker)
2246 (< (+ (point-max) 2) (buffer-size)))
2247 (save-excursion
2248 (goto-char (point-max))
2249 (gnus-insert-next-page-button)))))
2251 ;; Article mode commands
2253 (defun gnus-article-goto-next-page ()
2254 "Show the next page of the article."
2255 (interactive)
2256 (when (gnus-article-next-page)
2257 (goto-char (point-min))
2258 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
2260 (defun gnus-article-goto-prev-page ()
2261 "Show the next page of the article."
2262 (interactive)
2263 (if (bobp) (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
2264 (gnus-article-prev-page nil)))
2266 (defun gnus-article-next-page (&optional lines)
2267 "Show the next page of the current article.
2268 If end of article, return non-nil. Otherwise return nil.
2269 Argument LINES specifies lines to be scrolled up."
2270 (interactive "p")
2271 (move-to-window-line -1)
2272 (if (save-excursion
2273 (end-of-line)
2274 (and (pos-visible-in-window-p) ;Not continuation line.
2275 (eobp)))
2276 ;; Nothing in this page.
2277 (if (or (not gnus-page-broken)
2278 (save-excursion
2279 (save-restriction
2280 (widen) (forward-line 1) (eobp)))) ;Real end-of-buffer?
2281 t ;Nothing more.
2282 (gnus-narrow-to-page 1) ;Go to next page.
2283 nil)
2284 ;; More in this page.
2285 (let ((scroll-in-place nil))
2286 (condition-case ()
2287 (scroll-up lines)
2288 (end-of-buffer
2289 ;; Long lines may cause an end-of-buffer error.
2290 (goto-char (point-max)))))
2291 (move-to-window-line 0)
2292 nil))
2294 (defun gnus-article-prev-page (&optional lines)
2295 "Show previous page of current article.
2296 Argument LINES specifies lines to be scrolled down."
2297 (interactive "p")
2298 (move-to-window-line 0)
2299 (if (and gnus-page-broken
2300 (bobp)
2301 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
2302 (progn
2303 (gnus-narrow-to-page -1) ;Go to previous page.
2304 (goto-char (point-max))
2305 (recenter -1))
2306 (let ((scroll-in-place nil))
2307 (prog1
2308 (condition-case ()
2309 (scroll-down lines)
2310 (beginning-of-buffer
2311 (goto-char (point-min))))
2312 (move-to-window-line 0)))))
2314 (defun gnus-article-refer-article ()
2315 "Read article specified by message-id around point."
2316 (interactive)
2317 (let ((point (point)))
2318 (search-forward ">" nil t) ;Move point to end of "<....>".
2320 (let ((message-id (match-string 1)))
2321 (goto-char point)
2322 (set-buffer gnus-summary-buffer)
2323 (gnus-summary-refer-article message-id))
2324 (goto-char (point))
2325 (error "No references around point"))))
2327 (defun gnus-article-show-summary ()
2328 "Reconfigure windows to show summary buffer."
2329 (interactive)
2330 (if (not (gnus-buffer-live-p gnus-summary-buffer))
2331 (error "There is no summary buffer for this article buffer")
2332 (gnus-article-set-globals)
2333 (gnus-configure-windows 'article)
2334 (gnus-summary-goto-subject gnus-current-article)
2335 (gnus-summary-position-point)))
2337 (defun gnus-article-describe-briefly ()
2338 "Describe article mode commands briefly."
2339 (interactive)
2340 (gnus-message 6
2341 (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")))
2343 (defun gnus-article-summary-command ()
2344 "Execute the last keystroke in the summary buffer."
2345 (interactive)
2346 (let ((obuf (current-buffer))
2347 (owin (current-window-configuration))
2348 func)
2349 (switch-to-buffer gnus-article-current-summary 'norecord)
2350 (setq func (lookup-key (current-local-map) (this-command-keys)))
2351 (call-interactively func)
2352 (set-buffer obuf)
2353 (set-window-configuration owin)
2354 (set-window-point (get-buffer-window (current-buffer)) (point))))
2356 (defun gnus-article-summary-command-nosave ()
2357 "Execute the last keystroke in the summary buffer."
2358 (interactive)
2359 (let (func)
2360 (pop-to-buffer gnus-article-current-summary 'norecord)
2361 (setq func (lookup-key (current-local-map) (this-command-keys)))
2362 (call-interactively func)))
2364 (defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
2365 "Read a summary buffer key sequence and execute it from the article buffer."
2366 (interactive "P")
2367 (let ((nosaves
2368 '("q" "Q" "c" "r" "R" "\C-c\C-f" "m" "a" "f" "F"
2369 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
2370 "=" "^" "\M-^" "|"))
2371 (nosave-but-article
2373 (nosave-in-article
2374 '("\C-d"))
2375 (up-to-top
2376 '("n" "Gn" "p" "Gp"))
2377 keys new-sum-point)
2378 (save-excursion
2379 (set-buffer gnus-article-current-summary)
2380 (let (gnus-pick-mode)
2381 (push (or key last-command-event) unread-command-events)
2382 (setq keys (read-key-sequence nil))))
2383 (message "")
2385 (if (or (member keys nosaves)
2386 (member keys nosave-but-article)
2387 (member keys nosave-in-article))
2388 (let (func)
2389 (save-window-excursion
2390 (pop-to-buffer gnus-article-current-summary 'norecord)
2391 ;; We disable the pick minor mode commands.
2392 (let (gnus-pick-mode)
2393 (setq func (lookup-key (current-local-map) keys))))
2394 (if (not func)
2395 (ding)
2396 (unless (member keys nosave-in-article)
2397 (set-buffer gnus-article-current-summary))
2398 (call-interactively func)
2399 (setq new-sum-point (point)))
2400 (when (member keys nosave-but-article)
2401 (pop-to-buffer gnus-article-buffer 'norecord)))
2402 ;; These commands should restore window configuration.
2403 (let ((obuf (current-buffer))
2404 (owin (current-window-configuration))
2405 (opoint (point))
2406 (summary gnus-article-current-summary)
2407 func in-buffer selected)
2408 (if not-restore-window
2409 (pop-to-buffer summary 'norecord)
2410 (switch-to-buffer summary 'norecord))
2411 (setq in-buffer (current-buffer))
2412 ;; We disable the pick minor mode commands.
2413 (if (setq func (let (gnus-pick-mode)
2414 (lookup-key (current-local-map) keys)))
2415 (progn
2416 (call-interactively func)
2417 (setq new-sum-point (point)))
2418 (ding))
2419 (when (eq in-buffer (current-buffer))
2420 (setq selected (gnus-summary-select-article))
2421 (set-buffer obuf)
2422 (unless not-restore-window
2423 (set-window-configuration owin))
2424 (unless (or (not (eq selected 'old)) (member keys up-to-top))
2425 (set-window-point (get-buffer-window (current-buffer))
2426 opoint))
2427 (let ((win (get-buffer-window gnus-article-current-summary)))
2428 (when win
2429 (set-window-point win new-sum-point))))))))
2431 (defun gnus-article-hide (&optional arg force)
2432 "Hide all the gruft in the current article.
2433 This means that PGP stuff, signatures, cited text and (some)
2434 headers will be hidden.
2435 If given a prefix, show the hidden text instead."
2436 (interactive (append (gnus-article-hidden-arg) (list 'force)))
2437 (gnus-article-hide-headers arg)
2438 (gnus-article-hide-pgp arg)
2439 (gnus-article-hide-citation-maybe arg force)
2440 (gnus-article-hide-signature arg))
2442 (defun gnus-article-maybe-highlight ()
2443 "Do some article highlighting if article highlighting is requested."
2444 (when (gnus-visual-p 'article-highlight 'highlight)
2445 (gnus-article-highlight-some)))
2447 (defun gnus-check-group-server ()
2448 ;; Make sure the connection to the server is alive.
2449 (unless (gnus-server-opened
2450 (gnus-find-method-for-group gnus-newsgroup-name))
2451 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
2452 (gnus-request-group gnus-newsgroup-name t)))
2454 (defun gnus-request-article-this-buffer (article group)
2455 "Get an article and insert it into this buffer."
2456 (let (do-update-line sparse-header)
2457 (prog1
2458 (save-excursion
2459 (erase-buffer)
2460 (gnus-kill-all-overlays)
2461 (setq group (or group gnus-newsgroup-name))
2463 ;; Using `gnus-request-article' directly will insert the article into
2464 ;; `nntp-server-buffer' - so we'll save some time by not having to
2465 ;; copy it from the server buffer into the article buffer.
2467 ;; We only request an article by message-id when we do not have the
2468 ;; headers for it, so we'll have to get those.
2469 (when (stringp article)
2470 (let ((gnus-override-method gnus-refer-article-method))
2471 (gnus-read-header article)))
2473 ;; If the article number is negative, that means that this article
2474 ;; doesn't belong in this newsgroup (possibly), so we find its
2475 ;; message-id and request it by id instead of number.
2476 (when (and (numberp article)
2477 gnus-summary-buffer
2478 (get-buffer gnus-summary-buffer)
2479 (gnus-buffer-exists-p gnus-summary-buffer))
2480 (save-excursion
2481 (set-buffer gnus-summary-buffer)
2482 (let ((header (gnus-summary-article-header article)))
2483 (when (< article 0)
2484 (cond
2485 ((memq article gnus-newsgroup-sparse)
2486 ;; This is a sparse gap article.
2487 (setq do-update-line article)
2488 (setq article (mail-header-id header))
2489 (let ((gnus-override-method gnus-refer-article-method))
2490 (setq sparse-header (gnus-read-header article)))
2491 (setq gnus-newsgroup-sparse
2492 (delq article gnus-newsgroup-sparse)))
2493 ((vectorp header)
2494 ;; It's a real article.
2495 (setq article (mail-header-id header)))
2496 (t
2497 ;; It is an extracted pseudo-article.
2498 (setq article 'pseudo)
2499 (gnus-request-pseudo-article header))))
2501 (let ((method (gnus-find-method-for-group
2502 gnus-newsgroup-name)))
2503 (when (and (eq (car method) 'nneething)
2504 (vectorp header))
2505 (let ((dir (concat
2506 (file-name-as-directory
2507 (or (cadr (assq 'nneething-address method))
2508 (nth 1 method)))
2509 (mail-header-subject header))))
2510 (when (file-directory-p dir)
2511 (setq article 'nneething)
2512 (gnus-group-enter-directory dir))))))))
2514 (cond
2515 ;; Refuse to select canceled articles.
2516 ((and (numberp article)
2517 gnus-summary-buffer
2518 (get-buffer gnus-summary-buffer)
2519 (gnus-buffer-exists-p gnus-summary-buffer)
2520 (eq (cdr (save-excursion
2521 (set-buffer gnus-summary-buffer)
2522 (assq article gnus-newsgroup-reads)))
2523 gnus-canceled-mark))
2524 nil)
2525 ;; We first check `gnus-original-article-buffer'.
2526 ((and (get-buffer gnus-original-article-buffer)
2527 (numberp article)
2528 (save-excursion
2529 (set-buffer gnus-original-article-buffer)
2530 (and (equal (car gnus-original-article) group)
2531 (eq (cdr gnus-original-article) article))))
2532 (insert-buffer-substring gnus-original-article-buffer)
2533 'article)
2534 ;; Check the backlog.
2535 ((and gnus-keep-backlog
2536 (gnus-backlog-request-article group article (current-buffer)))
2537 'article)
2538 ;; Check asynchronous pre-fetch.
2539 ((gnus-async-request-fetched-article group article (current-buffer))
2540 (gnus-async-prefetch-next group article gnus-summary-buffer)
2541 (when (and (numberp article) gnus-keep-backlog)
2542 (gnus-backlog-enter-article group article (current-buffer)))
2543 'article)
2544 ;; Check the cache.
2545 ((and gnus-use-cache
2546 (numberp article)
2547 (gnus-cache-request-article article group))
2548 'article)
2549 ;; Get the article and put into the article buffer.
2550 ((or (stringp article) (numberp article))
2551 (let ((gnus-override-method
2552 (and (stringp article) gnus-refer-article-method))
2553 (buffer-read-only nil))
2554 (erase-buffer)
2555 (gnus-kill-all-overlays)
2556 (gnus-check-group-server)
2557 (when (gnus-request-article article group (current-buffer))
2558 (when (numberp article)
2559 (gnus-async-prefetch-next group article gnus-summary-buffer)
2560 (when gnus-keep-backlog
2561 (gnus-backlog-enter-article
2562 group article (current-buffer))))
2563 'article)))
2564 ;; It was a pseudo.
2565 (t article)))
2567 ;; Associate this article with the current summary buffer.
2568 (setq gnus-article-current-summary gnus-summary-buffer)
2570 ;; Take the article from the original article buffer
2571 ;; and place it in the buffer it's supposed to be in.
2572 (when (and (get-buffer gnus-article-buffer)
2573 (equal (buffer-name (current-buffer))
2574 (buffer-name (get-buffer gnus-article-buffer))))
2575 (save-excursion
2576 (if (get-buffer gnus-original-article-buffer)
2577 (set-buffer gnus-original-article-buffer)
2578 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
2579 (buffer-disable-undo (current-buffer))
2580 (setq major-mode 'gnus-original-article-mode)
2581 (setq buffer-read-only t))
2582 (let (buffer-read-only)
2583 (erase-buffer)
2584 (insert-buffer-substring gnus-article-buffer))
2585 (setq gnus-original-article (cons group article))))
2587 ;; Update sparse articles.
2588 (when (and do-update-line
2589 (or (numberp article)
2590 (stringp article)))
2591 (let ((buf (current-buffer)))
2592 (set-buffer gnus-summary-buffer)
2593 (gnus-summary-update-article do-update-line sparse-header)
2594 (gnus-summary-goto-subject do-update-line nil t)
2595 (set-window-point (get-buffer-window (current-buffer) t)
2596 (point))
2597 (set-buffer buf))))))
2599 ;;;
2600 ;;; Article editing
2601 ;;;
2603 (defcustom gnus-article-edit-mode-hook nil
2604 "Hook run in article edit mode buffers."
2605 :group 'gnus-article-various
2606 :type 'hook)
2608 (defvar gnus-article-edit-done-function nil)
2610 (defvar gnus-article-edit-mode-map nil)
2612 (unless gnus-article-edit-mode-map
2613 (setq gnus-article-edit-mode-map (copy-keymap text-mode-map))
2615 (gnus-define-keys gnus-article-edit-mode-map
2616 "\C-c\C-c" gnus-article-edit-done
2617 "\C-c\C-k" gnus-article-edit-exit)
2619 (gnus-define-keys (gnus-article-edit-wash-map
2620 "\C-c\C-w" gnus-article-edit-mode-map)
2621 "f" gnus-article-edit-full-stops))
2623 (defun gnus-article-edit-mode ()
2624 "Major mode for editing articles.
2625 This is an extended text-mode.
2628 (interactive)
2629 (setq major-mode 'gnus-article-edit-mode)
2630 (setq mode-name "Article Edit")
2631 (use-local-map gnus-article-edit-mode-map)
2632 (make-local-variable 'gnus-article-edit-done-function)
2633 (make-local-variable 'gnus-prev-winconf)
2634 (setq buffer-read-only nil)
2635 (buffer-enable-undo)
2636 (widen)
2637 (gnus-run-hooks 'text-mode-hook 'gnus-article-edit-mode-hook))
2639 (defun gnus-article-edit (&optional force)
2640 "Edit the current article.
2641 This will have permanent effect only in mail groups.
2642 If FORCE is non-nil, allow editing of articles even in read-only
2643 groups."
2644 (interactive "P")
2645 (when (and (not force)
2646 (gnus-group-read-only-p))
2647 (error "The current newsgroup does not support article editing"))
2648 (gnus-article-date-original)
2649 (gnus-article-edit-article
2650 `(lambda (no-highlight)
2651 (gnus-summary-edit-article-done
2652 ,(or (mail-header-references gnus-current-headers) "")
2653 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
2655 (defun gnus-article-edit-article (exit-func)
2656 "Start editing the contents of the current article buffer."
2657 (let ((winconf (current-window-configuration)))
2658 (set-buffer gnus-article-buffer)
2659 (gnus-article-edit-mode)
2660 (gnus-article-delete-text-of-type 'annotation)
2661 (gnus-set-text-properties (point-min) (point-max) nil)
2662 (gnus-configure-windows 'edit-article)
2663 (setq gnus-article-edit-done-function exit-func)
2664 (setq gnus-prev-winconf winconf)
2665 (gnus-message 6 "C-c C-c to end edits")))
2667 (defun gnus-article-edit-done (&optional arg)
2668 "Update the article edits and exit."
2669 (interactive "P")
2670 (save-excursion
2671 (save-restriction
2672 (widen)
2673 (goto-char (point-min))
2675 (let ((lines (count-lines (point) (point-max)))
2676 (length (- (point-max) (point)))
2677 (case-fold-search t)
2678 (body (copy-marker (point))))
2679 (goto-char (point-min))
2681 (delete-region (match-beginning 1) (match-end 1))
2682 (insert (number-to-string length)))
2683 (goto-char (point-min))
2684 (when (re-search-forward
2686 (delete-region (match-beginning 1) (match-end 1))
2687 (insert (number-to-string length)))
2688 (goto-char (point-min))
2690 (delete-region (match-beginning 1) (match-end 1))
2691 (insert (number-to-string lines)))))))
2692 (let ((func gnus-article-edit-done-function)
2693 (buf (current-buffer))
2694 (start (window-start)))
2695 (gnus-article-edit-exit)
2696 (save-excursion
2697 (set-buffer buf)
2698 (let ((buffer-read-only nil))
2699 (funcall func arg)))
2700 (set-buffer buf)
2701 (set-window-start (get-buffer-window buf) start)
2702 (set-window-point (get-buffer-window buf) (point))))
2704 (defun gnus-article-edit-exit ()
2705 "Exit the article editing without updating."
2706 (interactive)
2707 ;; We remove all text props from the article buffer.
2708 (let ((buf (format "%s" (buffer-string)))
2709 (curbuf (current-buffer))
2710 (p (point))
2711 (window-start (window-start)))
2712 (erase-buffer)
2713 (insert buf)
2714 (let ((winconf gnus-prev-winconf))
2715 (gnus-article-mode)
2716 ;; The cache and backlog have to be flushed somewhat.
2717 (when gnus-use-cache
2718 (gnus-cache-update-article
2719 (car gnus-article-current) (cdr gnus-article-current)))
2720 (when gnus-keep-backlog
2721 (gnus-backlog-remove-article
2722 (car gnus-article-current) (cdr gnus-article-current)))
2723 ;; Flush original article as well.
2724 (save-excursion
2725 (when (get-buffer gnus-original-article-buffer)
2726 (set-buffer gnus-original-article-buffer)
2727 (setq gnus-original-article nil)))
2728 (set-window-configuration winconf)
2729 ;; Tippy-toe some to make sure that point remains where it was.
2730 (let ((buf (current-buffer)))
2731 (set-buffer curbuf)
2732 (set-window-start (get-buffer-window (current-buffer)) window-start)
2733 (goto-char p)
2734 (set-buffer buf)))))
2736 (defun gnus-article-edit-full-stops ()
2737 "Interactively repair spacing at end of sentences."
2738 (interactive)
2739 (save-excursion
2740 (goto-char (point-min))
2741 (search-forward-regexp "^$" nil t)
2742 (let ((case-fold-search nil))
2745 ;;;
2746 ;;; Article highlights
2747 ;;;
2749 ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
2751 ;;; Internal Variables:
2753 (defcustom gnus-button-url-regexp "\\b\\(s?https?\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\):\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?\\([-a-zA-Z0-9_=!?#$@~`%&*+|\\/:;.,]\\|\\w\\)+\\([-a-zA-Z0-9_=#$@~`%&*+|\\/]\\|\\w\\)"
2754 "Regular expression that matches URLs."
2755 :group 'gnus-article-buttons
2756 :type 'regexp)
2758 (defcustom gnus-button-alist
2760 gnus-button-message-id 2)
2763 1 t
2764 gnus-button-fetch-group 4)
2767 t gnus-button-message-id 3)
2771 ;; This is how URLs _should_ be embedded in text...
2773 ;; Raw URLs.
2774 (,gnus-button-url-regexp 0 t gnus-button-url 0))
2775 "*Alist of regexps matching buttons in article bodies.
2777 Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
2778 REGEXP: is the string matching text around the button,
2779 BUTTON: is the number of the regexp grouping actually matching the button,
2780 FORM: is a lisp expression which must eval to true for the button to
2781 be added,
2782 CALLBACK: is the function to call when the user push this button, and each
2783 PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
2785 CALLBACK can also be a variable, in that case the value of that
2786 variable it the real callback function."
2787 :group 'gnus-article-buttons
2788 :type '(repeat (list regexp
2789 (integer :tag "Button")
2790 (sexp :tag "Form")
2791 (function :tag "Callback")
2792 (repeat :tag "Par"
2793 :inline t
2794 (integer :tag "Regexp group")))))
2796 (defcustom gnus-header-button-alist
2798 0 t gnus-button-message-id 0)
2801 0 t gnus-button-mailto 0)
2802 ("^X-[Uu][Rr][Ll]:" ,gnus-button-url-regexp 0 t gnus-button-url 0)
2803 ("^Subject:" ,gnus-button-url-regexp 0 t gnus-button-url 0)
2804 ("^[^:]+:" ,gnus-button-url-regexp 0 t gnus-button-url 0)
2806 gnus-button-message-id 3))
2807 "*Alist of headers and regexps to match buttons in article heads.
2809 This alist is very similar to `gnus-button-alist', except that each
2810 alist has an additional HEADER element first in each entry:
2812 \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
2814 HEADER is a regexp to match a header. For a fuller explanation, see
2815 `gnus-button-alist'."
2816 :group 'gnus-article-buttons
2817 :group 'gnus-article-headers
2818 :type '(repeat (list (regexp :tag "Header")
2819 regexp
2820 (integer :tag "Button")
2821 (sexp :tag "Form")
2822 (function :tag "Callback")
2823 (repeat :tag "Par"
2824 :inline t
2825 (integer :tag "Regexp group")))))
2827 (defvar gnus-button-regexp nil)
2828 (defvar gnus-button-marker-list nil)
2829 ;; Regexp matching any of the regexps from `gnus-button-alist'.
2831 (defvar gnus-button-last nil)
2832 ;; The value of `gnus-button-alist' when `gnus-button-regexp' was build.
2834 ;;; Commands:
2836 (defun gnus-article-push-button (event)
2837 "Check text under the mouse pointer for a callback function.
2838 If the text under the mouse pointer has a `gnus-callback' property,
2839 call it with the value of the `gnus-data' text property."
2840 (interactive "e")
2841 (set-buffer (window-buffer (posn-window (event-start event))))
2842 (let* ((pos (posn-point (event-start event)))
2843 (data (get-text-property pos 'gnus-data))
2844 (fun (get-text-property pos 'gnus-callback)))
2845 (goto-char pos)
2846 (when fun
2847 (funcall fun data))))
2849 (defun gnus-article-press-button ()
2850 "Check text at point for a callback function.
2851 If the text at point has a `gnus-callback' property,
2852 call it with the value of the `gnus-data' text property."
2853 (interactive)
2854 (let* ((data (get-text-property (point) 'gnus-data))
2855 (fun (get-text-property (point) 'gnus-callback)))
2856 (when fun
2857 (funcall fun data))))
2859 (defun gnus-article-prev-button (n)
2860 "Move point to N buttons backward.
2861 If N is negative, move forward instead."
2862 (interactive "p")
2863 (gnus-article-next-button (- n)))
2865 (defun gnus-article-next-button (n)
2866 "Move point to N buttons forward.
2867 If N is negative, move backward instead."
2868 (interactive "p")
2869 (let ((function (if (< n 0) 'previous-single-property-change
2870 'next-single-property-change))
2871 (inhibit-point-motion-hooks t)
2872 (backward (< n 0))
2873 (limit (if (< n 0) (point-min) (point-max))))
2874 (setq n (abs n))
2875 (while (and (not (= limit (point)))
2876 (> n 0))
2877 ;; Skip past the current button.
2878 (when (get-text-property (point) 'gnus-callback)
2879 (goto-char (funcall function (point) 'gnus-callback nil limit)))
2880 ;; Go to the next (or previous) button.
2881 (gnus-goto-char (funcall function (point) 'gnus-callback nil limit))
2882 ;; Put point at the start of the button.
2883 (when (and backward (not (get-text-property (point) 'gnus-callback)))
2884 (goto-char (funcall function (point) 'gnus-callback nil limit)))
2885 ;; Skip past intangible buttons.
2886 (when (get-text-property (point) 'intangible)
2887 (incf n))
2888 (decf n))
2889 (unless (zerop n)
2890 (gnus-message 5 "No more buttons"))
2891 n))
2893 (defun gnus-article-highlight (&optional force)
2894 "Highlight current article.
2895 This function calls `gnus-article-highlight-headers',
2896 `gnus-article-highlight-citation',
2897 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
2898 do the highlighting. See the documentation for those functions."
2899 (interactive (list 'force))
2900 (gnus-article-highlight-headers)
2901 (gnus-article-highlight-citation force)
2902 (gnus-article-highlight-signature)
2903 (gnus-article-add-buttons force)
2904 (gnus-article-add-buttons-to-head))
2906 (defun gnus-article-highlight-some (&optional force)
2907 "Highlight current article.
2908 This function calls `gnus-article-highlight-headers',
2909 `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
2910 do the highlighting. See the documentation for those functions."
2911 (interactive (list 'force))
2912 (gnus-article-highlight-headers)
2913 (gnus-article-highlight-signature)
2914 (gnus-article-add-buttons))
2916 (defun gnus-article-highlight-headers ()
2917 "Highlight article headers as specified by `gnus-header-face-alist'."
2918 (interactive)
2919 (save-excursion
2920 (set-buffer gnus-article-buffer)
2921 (save-restriction
2922 (let ((alist gnus-header-face-alist)
2923 (buffer-read-only nil)
2924 (case-fold-search t)
2925 (inhibit-point-motion-hooks t)
2926 entry regexp header-face field-face from hpoints fpoints)
2927 (message-narrow-to-head)
2928 (while (setq entry (pop alist))
2929 (goto-char (point-min))
2931 (if (string-equal "" (nth 0 entry))
2933 (nth 0 entry))
2935 header-face (nth 1 entry)
2936 field-face (nth 2 entry))
2937 (while (and (re-search-forward regexp nil t)
2938 (not (eobp)))
2939 (beginning-of-line)
2940 (setq from (point))
2941 (unless (search-forward ":" nil t)
2942 (forward-char 1))
2943 (when (and header-face
2944 (not (memq (point) hpoints)))
2945 (push (point) hpoints)
2946 (gnus-put-text-property from (point) 'face header-face))
2947 (when (and field-face
2948 (not (memq (setq from (point)) fpoints)))
2949 (push from fpoints)
2951 (forward-char -2)
2952 (goto-char (point-max)))
2953 (gnus-put-text-property from (point) 'face field-face))))))))
2955 (defun gnus-article-highlight-signature ()
2956 "Highlight the signature in an article.
2957 It does this by highlighting everything after
2958 `gnus-signature-separator' using `gnus-signature-face'."
2959 (interactive)
2960 (save-excursion
2961 (set-buffer gnus-article-buffer)
2962 (let ((buffer-read-only nil)
2963 (inhibit-point-motion-hooks t))
2964 (save-restriction
2965 (when (and gnus-signature-face
2966 (gnus-article-narrow-to-signature))
2967 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max))
2968 'face gnus-signature-face)
2969 (widen)
2970 (gnus-article-search-signature)
2971 (let ((start (match-beginning 0))
2972 (end (set-marker (make-marker) (1+ (match-end 0)))))
2973 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
2974 end)))))))
2976 (defun gnus-button-in-region-p (b e prop)
2977 "Say whether PROP exists in the region."
2978 (text-property-not-all b e prop nil))
2980 (defun gnus-article-add-buttons (&optional force)
2981 "Find external references in the article and make buttons of them.
2983 specified by `gnus-button-alist'."
2984 (interactive (list 'force))
2985 (save-excursion
2986 (set-buffer gnus-article-buffer)
2987 (let ((buffer-read-only nil)
2988 (inhibit-point-motion-hooks t)
2989 (case-fold-search t)
2990 (alist gnus-button-alist)
2991 beg entry regexp)
2992 ;; Remove all old markers.
2993 (let (marker entry)
2994 (while (setq marker (pop gnus-button-marker-list))
2995 (goto-char marker)
2996 (when (setq entry (gnus-button-entry))
2997 (put-text-property (match-beginning (nth 1 entry))
2998 (match-end (nth 1 entry))
2999 'gnus-callback nil))
3000 (set-marker marker nil)))
3001 ;; We skip the headers.
3002 (goto-char (point-min))
3004 (goto-char (point-max)))
3005 (setq beg (point))
3006 (while (setq entry (pop alist))
3007 (setq regexp (car entry))
3008 (goto-char beg)
3009 (while (re-search-forward regexp nil t)
3010 (let* ((start (and entry (match-beginning (nth 1 entry))))
3011 (end (and entry (match-end (nth 1 entry))))
3012 (from (match-beginning 0)))
3013 (when (and (or (eq t (nth 2 entry))
3014 (eval (nth 2 entry)))
3015 (not (gnus-button-in-region-p
3016 start end 'gnus-callback)))
3017 ;; That optional form returned non-nil, so we add the
3018 ;; button.
3019 (gnus-article-add-button
3020 start end 'gnus-button-push
3021 (car (push (set-marker (make-marker) from)
3022 gnus-button-marker-list))))))))))
3024 ;; Add buttons to the head of an article.
3025 (defun gnus-article-add-buttons-to-head ()
3026 "Add buttons to the head of the article."
3027 (interactive)
3028 (save-excursion
3029 (set-buffer gnus-article-buffer)
3030 (let ((buffer-read-only nil)
3031 (inhibit-point-motion-hooks t)
3032 (case-fold-search t)
3033 (alist gnus-header-button-alist)
3034 entry beg end)
3035 (nnheader-narrow-to-headers)
3036 (while alist
3037 ;; Each alist entry.
3038 (setq entry (car alist)
3039 alist (cdr alist))
3040 (goto-char (point-min))
3041 (while (re-search-forward (car entry) nil t)
3042 ;; Each header matching the entry.
3043 (setq beg (match-beginning 0))
3045 (match-beginning 0))
3046 (point-max)))
3047 (goto-char beg)
3048 (while (re-search-forward (nth 1 entry) end t)
3049 ;; Each match within a header.
3050 (let* ((entry (cdr entry))
3051 (start (match-beginning (nth 1 entry)))
3052 (end (match-end (nth 1 entry)))
3053 (form (nth 2 entry)))
3054 (goto-char (match-end 0))
3055 (when (eval form)
3056 (gnus-article-add-button
3057 start end (nth 3 entry)
3058 (buffer-substring (match-beginning (nth 4 entry))
3059 (match-end (nth 4 entry)))))))
3060 (goto-char end))))
3061 (widen)))
3063 ;;; External functions:
3065 (defun gnus-article-add-button (from to fun &optional data)
3066 "Create a button between FROM and TO with callback FUN and data DATA."
3067 (when gnus-article-button-face
3068 (gnus-overlay-put (gnus-make-overlay from to)
3069 'face gnus-article-button-face))
3070 (gnus-add-text-properties
3071 from to
3072 (nconc (and gnus-article-mouse-face
3073 (list gnus-mouse-face-prop gnus-article-mouse-face))
3074 (list 'gnus-callback fun)
3075 (and data (list 'gnus-data data)))))
3077 ;;; Internal functions:
3079 (defun gnus-article-set-globals ()
3080 (save-excursion
3081 (set-buffer gnus-summary-buffer)
3082 (gnus-set-global-variables)))
3084 (defun gnus-signature-toggle (end)
3085 (save-excursion
3086 (set-buffer gnus-article-buffer)
3087 (let ((buffer-read-only nil)
3088 (inhibit-point-motion-hooks t))
3089 (if (get-text-property end 'invisible)
3090 (gnus-article-unhide-text end (point-max))
3091 (gnus-article-hide-text end (point-max) gnus-hidden-properties)))))
3093 (defun gnus-button-entry ()
3094 ;; Return the first entry in `gnus-button-alist' matching this place.
3095 (let ((alist gnus-button-alist)
3096 (entry nil))
3097 (while alist
3098 (setq entry (pop alist))
3099 (if (looking-at (car entry))
3100 (setq alist nil)
3101 (setq entry nil)))
3102 entry))
3104 (defun gnus-button-push (marker)
3105 ;; Push button starting at MARKER.
3106 (save-excursion
3107 (set-buffer gnus-article-buffer)
3108 (goto-char marker)
3109 (let* ((entry (gnus-button-entry))
3110 (inhibit-point-motion-hooks t)
3111 (fun (nth 3 entry))
3112 (args (mapcar (lambda (group)
3113 (let ((string (match-string group)))
3114 (gnus-set-text-properties
3115 0 (length string) nil string)
3116 string))
3117 (nthcdr 4 entry))))
3118 (cond
3119 ((fboundp fun)
3120 (apply fun args))
3121 ((and (boundp fun)
3122 (fboundp (symbol-value fun)))
3123 (apply (symbol-value fun) args))
3124 (t
3125 (gnus-message 1 "You must define `%S' to use this button"
3126 (cons fun args)))))))
3128 (defun gnus-button-message-id (message-id)
3129 "Fetch MESSAGE-ID."
3130 (save-excursion
3131 (set-buffer gnus-summary-buffer)
3132 (gnus-summary-refer-article message-id)))
3134 (defun gnus-button-fetch-group (address)
3135 "Fetch GROUP specified by ADDRESS."
3136 (if (not (string-match "[:/]" address))
3137 ;; This is just a simple group url.
3138 (gnus-group-read-ephemeral-group address gnus-select-method)
3140 address))
3141 (error "Can't parse %s" address)
3142 (gnus-group-read-ephemeral-group
3143 (match-string 4 address)
3144 `(nntp ,(match-string 1 address)
3145 (nntp-address ,(match-string 1 address))
3146 (nntp-port-number ,(if (match-end 3)
3147 (match-string 3 address)
3148 "nntp")))))))
3150 (defun gnus-url-parse-query-string (query &optional downcase)
3151 (let (retval pairs cur key val)
3152 (setq pairs (gnus-split-string query "&"))
3153 (while pairs
3154 (setq cur (car pairs)
3155 pairs (cdr pairs))
3156 (if (not (string-match "=" cur))
3157 nil ; Grace
3158 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
3159 val (gnus-url-unhex-string (substring cur (match-end 0) nil)))
3160 (if downcase
3161 (setq key (downcase key)))
3162 (setq cur (assoc key retval))
3163 (if cur
3164 (setcdr cur (cons val (cdr cur)))
3165 (setq retval (cons (list key val) retval)))))
3166 retval))
3168 (defun gnus-url-unhex (x)
3169 (if (> x ?9)
3170 (if (>= x ?a)
3171 (+ 10 (- x ?a))
3172 (+ 10 (- x ?A)))
3173 (- x ?0)))
3175 (defun gnus-url-unhex-string (str &optional allow-newlines)
3176 "Remove %XXX embedded spaces, etc in a url.
3177 If optional second argument ALLOW-NEWLINES is non-nil, then allow the
3178 decoding of carriage returns and line feeds in the string, which is normally
3179 forbidden in URL encoding."
3180 (setq str (or str ""))
3181 (let ((tmp "")
3182 (case-fold-search t))
3183 (while (string-match "%[0-9a-f][0-9a-f]" str)
3184 (let* ((start (match-beginning 0))
3185 (ch1 (gnus-url-unhex (elt str (+ start 1))))
3186 (code (+ (* 16 ch1)
3187 (gnus-url-unhex (elt str (+ start 2))))))
3188 (setq tmp (concat
3189 tmp (substring str 0 start)
3190 (cond
3191 (allow-newlines
3192 (char-to-string code))
3194 " ")
3195 (t (char-to-string code))))
3196 str (substring str (match-end 0)))))
3197 (setq tmp (concat tmp str))
3198 tmp))
3200 (defun gnus-url-mailto (url)
3201 ;; Send mail to someone
3203 (setq url (substring url (match-beginning 1) nil)))
3204 (let (to args subject func)
3205 (if (string-match (regexp-quote "?") url)
3206 (setq to (gnus-url-unhex-string (substring url 0 (match-beginning 0)))
3207 args (gnus-url-parse-query-string
3208 (substring url (match-end 0) nil) t))
3209 (setq to (gnus-url-unhex-string url)))
3210 (setq args (cons (list "to" to) args)
3211 subject (cdr-safe (assoc "subject" args)))
3212 (message-mail)
3213 (while args
3214 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
3215 (if (fboundp func)
3216 (funcall func)
3217 (message-position-on-field (caar args)))
3218 (insert (mapconcat 'identity (cdar args) ", "))
3219 (setq args (cdr args)))
3220 (if subject
3221 (message-goto-body)
3222 (message-goto-subject))))
3224 (defun gnus-button-mailto (address)
3225 ;; Mail to ADDRESS.
3226 (set-buffer (gnus-copy-article-buffer))
3227 (message-reply address))
3229 (defun gnus-button-reply (address)
3230 ;; Reply to ADDRESS.
3231 (message-reply address))
3233 (defun gnus-button-url (address)
3234 "Browse ADDRESS."
3235 (browse-url address))
3237 (defun gnus-button-embedded-url (address)
3238 "Browse ADDRESS."
3239 ;; In Emacs 20, `browse-url-browser-function' may be an alist.
3240 (browse-url (gnus-strip-whitespace address)))
3242 ;;; Next/prev buttons in the article buffer.
3247 (defvar gnus-prev-page-map nil)
3248 (unless gnus-prev-page-map
3249 (setq gnus-prev-page-map (make-sparse-keymap))
3250 (define-key gnus-prev-page-map gnus-mouse-2 'gnus-button-prev-page)
3253 (defun gnus-insert-prev-page-button ()
3254 (let ((buffer-read-only nil))
3255 (gnus-eval-format
3256 gnus-prev-page-line-format nil
3257 `(gnus-prev t local-map ,gnus-prev-page-map
3258 gnus-callback gnus-article-button-prev-page
3259 gnus-type annotation))))
3261 (defvar gnus-next-page-map nil)
3262 (unless gnus-next-page-map
3263 (setq gnus-next-page-map (make-keymap))
3264 (suppress-keymap gnus-prev-page-map)
3265 (define-key gnus-next-page-map gnus-mouse-2 'gnus-button-next-page)
3268 (defun gnus-button-next-page ()
3269 "Go to the next page."
3270 (interactive)
3271 (let ((win (selected-window)))
3272 (select-window (get-buffer-window gnus-article-buffer t))
3273 (gnus-article-next-page)
3274 (select-window win)))
3276 (defun gnus-button-prev-page ()
3277 "Go to the prev page."
3278 (interactive)
3279 (let ((win (selected-window)))
3280 (select-window (get-buffer-window gnus-article-buffer t))
3281 (gnus-article-prev-page)
3282 (select-window win)))
3284 (defun gnus-insert-next-page-button ()
3285 (let ((buffer-read-only nil))
3286 (gnus-eval-format gnus-next-page-line-format nil
3287 `(gnus-next
3288 t local-map ,gnus-next-page-map
3289 gnus-callback gnus-article-button-next-page
3290 gnus-type annotation))))
3292 (defun gnus-article-button-next-page (arg)
3293 "Go to the next page."
3294 (interactive "P")
3295 (let ((win (selected-window)))
3296 (select-window (get-buffer-window gnus-article-buffer t))
3297 (gnus-article-next-page)
3298 (select-window win)))
3300 (defun gnus-article-button-prev-page (arg)
3301 "Go to the prev page."
3302 (interactive "P")
3303 (let ((win (selected-window)))
3304 (select-window (get-buffer-window gnus-article-buffer t))
3305 (gnus-article-prev-page)
3306 (select-window win)))
3308 (gnus-ems-redefine)
3310 (provide 'gnus-art)
3312 (run-hooks 'gnus-art-load-hook)
3314 ;;; gnus-art.el ends here