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eec82323 1;;; gnus-art.el --- article mode commands for Gnus
c55f89a5 2
43273f39 3;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002
c55f89a5 4;; Free Software Foundation, Inc.
eec82323 5
6748645f 6;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
eec82323
LMI		 7;; Keywords: news
8
9;; This file is part of GNU Emacs.
10
11;; GNU Emacs is free software; you can redistribute it and/or modify
12;; it under the terms of the GNU General Public License as published by
13;; the Free Software Foundation; either version 2, or (at your option)
14;; any later version.
15
16;; GNU Emacs is distributed in the hope that it will be useful,
17;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19;; GNU General Public License for more details.
20
21;; You should have received a copy of the GNU General Public License
22;; along with GNU Emacs; see the file COPYING. If not, write to the
23;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24;; Boston, MA 02111-1307, USA.
25
26;;; Commentary:
27
28;;; Code:
29
5ab7173c
RS		 30(eval-when-compile (require 'cl))
31
eec82323
LMI		 32(require 'gnus)
33(require 'gnus-sum)
34(require 'gnus-spec)
35(require 'gnus-int)
16409b0b
GM		 36(require 'mm-bodies)
37(require 'mail-parse)
38(require 'mm-decode)
39(require 'mm-view)
40(require 'wid-edit)
41(require 'mm-uu)
eec82323
LMI		 42
43(defgroup gnus-article nil
44 "Article display."
45 :link '(custom-manual "(gnus)The Article Buffer")
46 :group 'gnus)
47
16409b0b
GM		 48(defgroup gnus-article-treat nil
49 "Treating article parts."
50 :link '(custom-manual "(gnus)Article Hiding")
51 :group 'gnus-article)
52
eec82323
LMI		 53(defgroup gnus-article-hiding nil
54 "Hiding article parts."
55 :link '(custom-manual "(gnus)Article Hiding")
56 :group 'gnus-article)
57
58(defgroup gnus-article-highlight nil
59 "Article highlighting."
60 :link '(custom-manual "(gnus)Article Highlighting")
61 :group 'gnus-article
62 :group 'gnus-visual)
63
64(defgroup gnus-article-signature nil
65 "Article signatures."
66 :link '(custom-manual "(gnus)Article Signature")
67 :group 'gnus-article)
68
69(defgroup gnus-article-headers nil
70 "Article headers."
71 :link '(custom-manual "(gnus)Hiding Headers")
72 :group 'gnus-article)
73
74(defgroup gnus-article-washing nil
75 "Special commands on articles."
76 :link '(custom-manual "(gnus)Article Washing")
77 :group 'gnus-article)
78
79(defgroup gnus-article-emphasis nil
80 "Fontisizing articles."
81 :link '(custom-manual "(gnus)Article Fontisizing")
82 :group 'gnus-article)
83
84(defgroup gnus-article-saving nil
85 "Saving articles."
86 :link '(custom-manual "(gnus)Saving Articles")
87 :group 'gnus-article)
88
89(defgroup gnus-article-mime nil
90 "Worshiping the MIME wonder."
91 :link '(custom-manual "(gnus)Using MIME")
92 :group 'gnus-article)
93
94(defgroup gnus-article-buttons nil
95 "Pushable buttons in the article buffer."
96 :link '(custom-manual "(gnus)Article Buttons")
97 :group 'gnus-article)
98
99(defgroup gnus-article-various nil
100 "Other article options."
101 :link '(custom-manual "(gnus)Misc Article")
102 :group 'gnus-article)
103
104(defcustom gnus-ignored-headers
6748645f
LMI		 105 '("^Path:" "^Expires:" "^Date-Received:" "^References:" "^Xref:" "^Lines:"
106 "^Relay-Version:" "^Message-ID:" "^Approved:" "^Sender:" "^Received:"
107 "^X-UIDL:" "^MIME-Version:" "^Return-Path:" "^In-Reply-To:"
108 "^Content-Type:" "^Content-Transfer-Encoding:" "^X-WebTV-Signature:"
109 "^X-MimeOLE:" "^X-MSMail-Priority:" "^X-Priority:" "^X-Loop:"
110 "^X-Authentication-Warning:" "^X-MIME-Autoconverted:" "^X-Face:"
111 "^X-Attribution:" "^X-Originating-IP:" "^Delivered-To:"
112 "^NNTP-[-A-Za-z]+:" "^Distribution:" "^X-no-archive:" "^X-Trace:"
113 "^X-Complaints-To:" "^X-NNTP-Posting-Host:" "^X-Orig.*:"
114 "^Abuse-Reports-To:" "^Cache-Post-Path:" "^X-Article-Creation-Date:"
115 "^X-Poster:" "^X-Mail2News-Path:" "^X-Server-Date:" "^X-Cache:"
116 "^Originator:" "^X-Problems-To:" "^X-Auth-User:" "^X-Post-Time:"
117 "^X-Admin:" "^X-UID:" "^Resent-[-A-Za-z]+:" "^X-Mailing-List:"
118 "^Precedence:" "^Original-[-A-Za-z]+:" "^X-filename:" "^X-Orcpt:"
16409b0b 119 "^Old-Received:" "^X-Pgp" "^X-Auth:" "^X-From-Line:"
6748645f 120 "^X-Gnus-Article-Number:" "^X-Majordomo:" "^X-Url:" "^X-Sender:"
16409b0b
GM		 121 "^MBOX-Line" "^Priority:" "^X-Pgp" "^X400-[-A-Za-z]+:"
122 "^Status:" "^X-Gnus-Mail-Source:" "^Cancel-Lock:"
123 "^X-FTN" "^X-EXP32-SerialNo:" "^Encoding:" "^Importance:"
124 "^Autoforwarded:" "^Original-Encoded-Information-Types:" "^X-Ya-Pop3:"
125 "^X-Face-Version:" "^X-Vms-To:" "^X-ML-NAME:" "^X-ML-COUNT:"
126 "^Mailing-List:" "^X-finfo:" "^X-md5sum:" "^X-md5sum-Origin:"
127 "^X-Sun-Charset:" "^X-Accept-Language:" "^X-Envelope-Sender:"
128 "^List-[A-Za-z]+:" "^X-Listprocessor-Version:"
129 "^X-Received:" "^X-Distribute:" "^X-Sequence:" "^X-Juno-Line-Breaks:"
130 "^X-Notes-Item:" "^X-MS-TNEF-Correlator:" "^x-uunet-gateway:"
131 "^X-Received:" "^Content-length:" "X-precedence:")
6748645f 132 "*All headers that start with this regexp will be hidden.
eec82323
LMI		 133This variable can also be a list of regexps of headers to be ignored.
134If `gnus-visible-headers' is non-nil, this variable will be ignored."
135 :type '(choice :custom-show nil
136 regexp
137 (repeat regexp))
138 :group 'gnus-article-hiding)
139
140(defcustom gnus-visible-headers
16409b0b 141 "^From:\\|^Newsgroups:\\|^Subject:\\|^Date:\\|^Followup-To:\\|^Reply-To:\\|^Organization:\\|^Summary:\\|^Keywords:\\|^To:\\|^[BGF]?Cc:\\|^Posted-To:\\|^Mail-Copies-To:\\|^Apparently-To:\\|^Gnus-Warning:\\|^Resent-From:\\|^X-Sent:"
6748645f 142 "*All headers that do not match this regexp will be hidden.
eec82323
LMI		 143This variable can also be a list of regexp of headers to remain visible.
144If this variable is non-nil, `gnus-ignored-headers' will be ignored."
145 :type '(repeat :value-to-internal (lambda (widget value)
146 (custom-split-regexp-maybe value))
147 :match (lambda (widget value)
148 (or (stringp value)
149 (widget-editable-list-match widget value)))
150 regexp)
151 :group 'gnus-article-hiding)
152
153(defcustom gnus-sorted-header-list
154 '("^From:" "^Subject:" "^Summary:" "^Keywords:" "^Newsgroups:"
155 "^Followup-To:" "^To:" "^Cc:" "^Date:" "^Organization:")
6748645f 156 "*This variable is a list of regular expressions.
eec82323
LMI		 157If it is non-nil, headers that match the regular expressions will
158be placed first in the article buffer in the sequence specified by
159this list."
160 :type '(repeat regexp)
161 :group 'gnus-article-hiding)
162
163(defcustom gnus-boring-article-headers '(empty followup-to reply-to)
164 "Headers that are only to be displayed if they have interesting data.
165Possible values in this list are `empty', `newsgroups', `followup-to',
6748645f 166`reply-to', `date', `long-to', and `many-to'."
eec82323
LMI		 167 :type '(set (const :tag "Headers with no content." empty)
168 (const :tag "Newsgroups with only one group." newsgroups)
169 (const :tag "Followup-to identical to newsgroups." followup-to)
170 (const :tag "Reply-to identical to from." reply-to)
6748645f 171 (const :tag "Date less than four days old." date)
16409b0b
GM		 172 (const :tag "Very long To and/or Cc header." long-to)
173 (const :tag "Multiple To and/or Cc headers." many-to))
eec82323
LMI		 174 :group 'gnus-article-hiding)
175
176(defcustom gnus-signature-separator '("^-- $" "^-- *$")
177 "Regexp matching signature separator.
178This can also be a list of regexps. In that case, it will be checked
179from head to tail looking for a separator. Searches will be done from
180the end of the buffer."
181 :type '(repeat string)
182 :group 'gnus-article-signature)
183
184(defcustom gnus-signature-limit nil
16409b0b 185 "Provide a limit to what is considered a signature.
eec82323
LMI		 186If it is a number, no signature may not be longer (in characters) than
187that number. If it is a floating point number, no signature may be
188longer (in lines) than that number. If it is a function, the function
189will be called without any parameters, and if it returns nil, there is
190no signature in the buffer. If it is a string, it will be used as a
191regexp. If it matches, the text in question is not a signature."
6748645f
LMI		 192 :type '(choice (integer :value 200)
193 (number :value 4.0)
194 (function :value fun)
195 (regexp :value ".*"))
eec82323
LMI		 196 :group 'gnus-article-signature)
197
198(defcustom gnus-hidden-properties '(invisible t intangible t)
199 "Property list to use for hiding text."
200 :type 'sexp
201 :group 'gnus-article-hiding)
202
16409b0b
GM		 203;; Fixme: This isn't the right thing for mixed graphical and and
204;; non-graphical frames in a session.
205;; gnus-xmas.el overrides this for XEmacs.
eec82323 206(defcustom gnus-article-x-face-command
16409b0b
GM		 207 (if (and (fboundp 'image-type-available-p)
208 (image-type-available-p 'xbm))
209 'gnus-article-display-xface
3cc82ee4
SZ		 210 (if (or (and (boundp 'gnus-article-compface-xbm)
211 gnus-article-compface-xbm)
212 (eq 0 (string-match "#define"
213 (shell-command-to-string "uncompface -X"))))
e0bad764
DL		 214 "{ echo '/* Width=48, Height=48 */'; uncompface; } | display -"
215 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | \
216display -"))
6748645f 217 "*String or function to be executed to display an X-Face header.
eec82323
LMI		 218If it is a string, the command will be executed in a sub-shell
219asynchronously. The compressed face will be piped to this command."
16409b0b
GM		 220 :type '(choice string
221 (function-item gnus-article-display-xface)
222 function)
b5a206e7 223 :version "21.1"
eec82323
LMI		 224 :group 'gnus-article-washing)
225
226(defcustom gnus-article-x-face-too-ugly nil
227 "Regexp matching posters whose face shouldn't be shown automatically."
4bb6a3a6 228 :type '(choice regexp (const nil))
eec82323
LMI		 229 :group 'gnus-article-washing)
230
e0bad764
DL		 231(defcustom gnus-article-banner-alist nil
232 "Banner alist for stripping.
a1506d29 233For example,
e0bad764 234 ((egroups . \"^[ \\t\\n]*-------------------+\\\\( eGroups Sponsor -+\\\\)?....\\n\\\\(.+\\n\\\\)+\"))"
fc2c2db8 235 :version "21.1"
e0bad764
DL		 236 :type '(repeat (cons symbol regexp))
237 :group 'gnus-article-washing)
238
eec82323
LMI		 239(defcustom gnus-emphasis-alist
240 (let ((format
16409b0b 241 "\\(\\s-\\|^\\|[-\"]\\|\\s(\\)\\(%s\\(\\w+\\(\\s-+\\w+\\)*[.,]?\\)%s\\)\\(\\s-\\|[-,;:\"]\\s-\\|[?!.]+\\s-\\|\\s)\\)")
eec82323
LMI		 242 (types
243 '(("_" "_" underline)
244 ("/" "/" italic)
245 ("\\*" "\\*" bold)
246 ("_/" "/_" underline-italic)
247 ("_\\*" "\\*_" underline-bold)
248 ("\\*/" "/\\*" bold-italic)
249 ("_\\*/" "/\\*_" underline-bold-italic))))
250 `(("\\(\\s-\\|^\\)\\(_\\(\\(\\w\\|_[^_]\\)+\\)_\\)\\(\\s-\\|[?!.,;]\\)"
251 2 3 gnus-emphasis-underline)
252 ,@(mapcar
253 (lambda (spec)
254 (list
255 (format format (car spec) (cadr spec))
c2a2ac1a 256 2 3 (intern (format "gnus-emphasis-%s" (nth 2 spec)))))
eec82323 257 types)))
6748645f 258 "*Alist that says how to fontify certain phrases.
eec82323
LMI		 259Each item looks like this:
260
261 (\"_\\\\(\\\\w+\\\\)_\" 0 1 'underline)
262
263The first element is a regular expression to be matched. The second
264is a number that says what regular expression grouping used to find
265the entire emphasized word. The third is a number that says what
266regexp grouping should be displayed and highlighted. The fourth
267is the face used for highlighting."
268 :type '(repeat (list :value ("" 0 0 default)
269 regexp
270 (integer :tag "Match group")
271 (integer :tag "Emphasize group")
272 face))
273 :group 'gnus-article-emphasis)
274
16409b0b
GM		 275(defcustom gnus-emphasize-whitespace-regexp "^[ \t]+\\|[ \t]*\n"
276 "A regexp to describe whitespace which should not be emphasized.
277Typical values are \"^[ \\t]+\\\\|[ \\t]*\\n\" and \"[ \\t]+\\\\|[ \\t]*\\n\".
278The former avoids underlining of leading and trailing whitespace,
279and the latter avoids underlining any whitespace at all."
fc2c2db8 280 :version "21.1"
16409b0b
GM		 281 :group 'gnus-article-emphasis
282 :type 'regexp)
283
43273f39 284(defface gnus-emphasis-bold '((t (:weight bold)))
eec82323
LMI		 285 "Face used for displaying strong emphasized text (*word*)."
286 :group 'gnus-article-emphasis)
287
43273f39 288(defface gnus-emphasis-italic '((t (:slant italic)))
eec82323
LMI		 289 "Face used for displaying italic emphasized text (/word/)."
290 :group 'gnus-article-emphasis)
291
292(defface gnus-emphasis-underline '((t (:underline t)))
293 "Face used for displaying underlined emphasized text (_word_)."
294 :group 'gnus-article-emphasis)
295
43273f39 296(defface gnus-emphasis-underline-bold '((t (:weight bold :underline t)))
eec82323
LMI		 297 "Face used for displaying underlined bold emphasized text (_*word*_)."
298 :group 'gnus-article-emphasis)
299
43273f39 300(defface gnus-emphasis-underline-italic '((t (:slant italic :underline t)))
8de38c21 301 "Face used for displaying underlined italic emphasized text (_/word/_)."
eec82323
LMI		 302 :group 'gnus-article-emphasis)
303
43273f39 304(defface gnus-emphasis-bold-italic '((t (:weight bold :slant italic)))
eec82323
LMI		 305 "Face used for displaying bold italic emphasized text (/*word*/)."
306 :group 'gnus-article-emphasis)
307
308(defface gnus-emphasis-underline-bold-italic
43273f39 309 '((t (:weight bold :slant italic :underline t)))
eec82323 310 "Face used for displaying underlined bold italic emphasized text.
8f688cb0 311Example: (_/*word*/_)."
eec82323
LMI		 312 :group 'gnus-article-emphasis)
313
16409b0b
GM		 314(defface gnus-emphasis-highlight-words
315 '((t (:background "black" :foreground "yellow")))
316 "Face used for displaying highlighted words."
317 :group 'gnus-article-emphasis)
318
eec82323
LMI		 319(defcustom gnus-article-time-format "%a, %b %d %Y %T %Z"
320 "Format for display of Date headers in article bodies.
6748645f
LMI		 321See `format-time-string' for the possible values.
322
323The variable can also be function, which should return a complete Date
324header. The function is called with one argument, the time, which can
325be fed to `format-time-string'."
326 :type '(choice string symbol)
eec82323
LMI		 327 :link '(custom-manual "(gnus)Article Date")
328 :group 'gnus-article-washing)
329
330(eval-and-compile
eec82323
LMI		 331 (autoload 'mail-extract-address-components "mail-extr"))
332
333(defcustom gnus-save-all-headers t
334 "*If non-nil, don't remove any headers before saving."
335 :group 'gnus-article-saving
336 :type 'boolean)
337
338(defcustom gnus-prompt-before-saving 'always
339 "*This variable says how much prompting is to be done when saving articles.
340If it is nil, no prompting will be done, and the articles will be
341saved to the default files. If this variable is `always', each and
342every article that is saved will be preceded by a prompt, even when
343saving large batches of articles. If this variable is neither nil not
344`always', there the user will be prompted once for a file name for
345each invocation of the saving commands."
346 :group 'gnus-article-saving
347 :type '(choice (item always)
348 (item :tag "never" nil)
6748645f 349 (sexp :tag "once" :format "%t\n" :value t)))
eec82323
LMI		 350
351(defcustom gnus-saved-headers gnus-visible-headers
352 "Headers to keep if `gnus-save-all-headers' is nil.
353If `gnus-save-all-headers' is non-nil, this variable will be ignored.
354If that variable is nil, however, all headers that match this regexp
355will be kept while the rest will be deleted before saving."
356 :group 'gnus-article-saving
4bb6a3a6 357 :type 'regexp)
eec82323
LMI		 358
359(defcustom gnus-default-article-saver 'gnus-summary-save-in-rmail
360 "A function to save articles in your favourite format.
361The function must be interactively callable (in other words, it must
362be an Emacs command).
363
364Gnus provides the following functions:
365
366* gnus-summary-save-in-rmail (Rmail format)
367* gnus-summary-save-in-mail (Unix mail format)
368* gnus-summary-save-in-folder (MH folder)
369* gnus-summary-save-in-file (article format)
370* gnus-summary-save-in-vm (use VM's folder format)
371* gnus-summary-write-to-file (article format -- overwrite)."
372 :group 'gnus-article-saving
373 :type '(radio (function-item gnus-summary-save-in-rmail)
374 (function-item gnus-summary-save-in-mail)
375 (function-item gnus-summary-save-in-folder)
376 (function-item gnus-summary-save-in-file)
377 (function-item gnus-summary-save-in-vm)
378 (function-item gnus-summary-write-to-file)))
379
380(defcustom gnus-rmail-save-name 'gnus-plain-save-name
381 "A function generating a file name to save articles in Rmail format.
382The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
383 :group 'gnus-article-saving
384 :type 'function)
385
386(defcustom gnus-mail-save-name 'gnus-plain-save-name
387 "A function generating a file name to save articles in Unix mail format.
388The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
389 :group 'gnus-article-saving
390 :type 'function)
391
392(defcustom gnus-folder-save-name 'gnus-folder-save-name
393 "A function generating a file name to save articles in MH folder.
394The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
395 :group 'gnus-article-saving
396 :type 'function)
397
398(defcustom gnus-file-save-name 'gnus-numeric-save-name
399 "A function generating a file name to save articles in article format.
400The function is called with NEWSGROUP, HEADERS, and optional
401LAST-FILE."
402 :group 'gnus-article-saving
403 :type 'function)
404
405(defcustom gnus-split-methods
406 '((gnus-article-archive-name)
407 (gnus-article-nndoc-name))
6748645f 408 "*Variable used to suggest where articles are to be saved.
eec82323
LMI		 409For instance, if you would like to save articles related to Gnus in
410the file \"gnus-stuff\", and articles related to VM in \"vm-stuff\",
411you could set this variable to something like:
412
413 '((\"^Subject:.*gnus\\|^Newsgroups:.*gnus\" \"gnus-stuff\")
414 (\"^Subject:.*vm\\|^Xref:.*vm\" \"vm-stuff\"))
415
416This variable is an alist where the where the key is the match and the
417value is a list of possible files to save in if the match is non-nil.
418
419If the match is a string, it is used as a regexp match on the
420article. If the match is a symbol, that symbol will be funcalled
421from the buffer of the article to be saved with the newsgroup as the
422parameter. If it is a list, it will be evaled in the same buffer.
423
424If this form or function returns a string, this string will be used as
425a possible file name; and if it returns a non-nil list, that list will
426be used as possible file names."
427 :group 'gnus-article-saving
6748645f
LMI		 428 :type '(repeat (choice (list :value (fun) function)
429 (cons :value ("" "") regexp (repeat string))
430 (sexp :value nil))))
eec82323 431
eec82323
LMI		 432(defcustom gnus-page-delimiter "^\^L"
433 "*Regexp describing what to use as article page delimiters.
434The default value is \"^\^L\", which is a form linefeed at the
435beginning of a line."
436 :type 'regexp
437 :group 'gnus-article-various)
438
16409b0b 439(defcustom gnus-article-mode-line-format "Gnus: %g [%w] %S%m"
eec82323 440 "*The format specification for the article mode line.
16409b0b
GM		 441See `gnus-summary-mode-line-format' for a closer description.
442
443The following additional specs are available:
444
445%w The article washing status.
446%m The number of MIME parts in the article."
eec82323
LMI		 447 :type 'string
448 :group 'gnus-article-various)
449
450(defcustom gnus-article-mode-hook nil
451 "*A hook for Gnus article mode."
452 :type 'hook
453 :group 'gnus-article-various)
454
455(defcustom gnus-article-menu-hook nil
456 "*Hook run after the creation of the article mode menu."
457 :type 'hook
458 :group 'gnus-article-various)
459
460(defcustom gnus-article-prepare-hook nil
16409b0b 461 "*A hook called after an article has been prepared in the article buffer."
eec82323
LMI		 462 :type 'hook
463 :group 'gnus-article-various)
464
a8151ef7
LMI		 465(defcustom gnus-article-hide-pgp-hook nil
466 "*A hook called after successfully hiding a PGP signature."
467 :type 'hook
6748645f 468 :group 'gnus-article-various)
a8151ef7 469
eec82323
LMI		 470(defcustom gnus-article-button-face 'bold
471 "Face used for highlighting buttons in the article buffer.
472
473An article button is a piece of text that you can activate by pressing
474`RET' or `mouse-2' above it."
475 :type 'face
476 :group 'gnus-article-buttons)
477
478(defcustom gnus-article-mouse-face 'highlight
479 "Face used for mouse highlighting in the article buffer.
480
481Article buttons will be displayed in this face when the cursor is
482above them."
483 :type 'face
484 :group 'gnus-article-buttons)
485
a8151ef7
LMI		 486(defcustom gnus-signature-face 'gnus-signature-face
487 "Face used for highlighting a signature in the article buffer.
488Obsolete; use the face `gnus-signature-face' for customizations instead."
eec82323
LMI		 489 :type 'face
490 :group 'gnus-article-highlight
491 :group 'gnus-article-signature)
492
a8151ef7 493(defface gnus-signature-face
f59a3415 494 '((t
43273f39 495 (:slant italic)))
a8151ef7
LMI		 496 "Face used for highlighting a signature in the article buffer."
497 :group 'gnus-article-highlight
498 :group 'gnus-article-signature)
499
eec82323
LMI		 500(defface gnus-header-from-face
501 '((((class color)
502 (background dark))
6748645f 503 (:foreground "spring green"))
eec82323
LMI		 504 (((class color)
505 (background light))
6748645f 506 (:foreground "red3"))
eec82323 507 (t
43273f39 508 (:slant italic)))
eec82323
LMI		 509 "Face used for displaying from headers."
510 :group 'gnus-article-headers
511 :group 'gnus-article-highlight)
512
513(defface gnus-header-subject-face
514 '((((class color)
515 (background dark))
6748645f 516 (:foreground "SeaGreen3"))
eec82323
LMI		 517 (((class color)
518 (background light))
6748645f 519 (:foreground "red4"))
eec82323 520 (t
43273f39 521 (:weight bold :slant italic)))
eec82323
LMI		 522 "Face used for displaying subject headers."
523 :group 'gnus-article-headers
524 :group 'gnus-article-highlight)
525
526(defface gnus-header-newsgroups-face
527 '((((class color)
528 (background dark))
43273f39 529 (:foreground "yellow" :slant italic))
eec82323
LMI		 530 (((class color)
531 (background light))
43273f39 532 (:foreground "MidnightBlue" :slant italic))
eec82323 533 (t
43273f39 534 (:slant italic)))
eec82323
LMI		 535 "Face used for displaying newsgroups headers."
536 :group 'gnus-article-headers
537 :group 'gnus-article-highlight)
538
539(defface gnus-header-name-face
540 '((((class color)
541 (background dark))
542 (:foreground "SeaGreen"))
543 (((class color)
544 (background light))
545 (:foreground "maroon"))
546 (t
43273f39 547 (:weight bold)))
eec82323
LMI		 548 "Face used for displaying header names."
549 :group 'gnus-article-headers
550 :group 'gnus-article-highlight)
551
552(defface gnus-header-content-face
553 '((((class color)
554 (background dark))
43273f39 555 (:foreground "forest green" :slant italic))
eec82323
LMI		 556 (((class color)
557 (background light))
43273f39 558 (:foreground "indianred4" :slant italic))
eec82323 559 (t
43273f39 560 (:slant italic))) "Face used for displaying header content."
eec82323
LMI		 561 :group 'gnus-article-headers
562 :group 'gnus-article-highlight)
563
564(defcustom gnus-header-face-alist
565 '(("From" nil gnus-header-from-face)
566 ("Subject" nil gnus-header-subject-face)
567 ("Newsgroups:.*," nil gnus-header-newsgroups-face)
568 ("" gnus-header-name-face gnus-header-content-face))
6748645f 569 "*Controls highlighting of article header.
eec82323
LMI		 570
571An alist of the form (HEADER NAME CONTENT).
572
573HEADER is a regular expression which should match the name of an
574header header and NAME and CONTENT are either face names or nil.
575
576The name of each header field will be displayed using the face
577specified by the first element in the list where HEADER match the
578header name and NAME is non-nil. Similarly, the content will be
579displayed by the first non-nil matching CONTENT face."
580 :group 'gnus-article-headers
581 :group 'gnus-article-highlight
582 :type '(repeat (list (regexp :tag "Header")
583 (choice :tag "Name"
584 (item :tag "skip" nil)
585 (face :value default))
586 (choice :tag "Content"
587 (item :tag "skip" nil)
588 (face :value default)))))
589
16409b0b
GM		 590(defcustom gnus-article-decode-hook
591 '(article-decode-charset article-decode-encoded-words)
592 "*Hook run to decode charsets in articles."
593 :group 'gnus-article-headers
594 :type 'hook)
595
596(defcustom gnus-display-mime-function 'gnus-display-mime
597 "Function to display MIME articles."
598 :group 'gnus-article-mime
599 :type 'function)
600
601(defvar gnus-decode-header-function 'mail-decode-encoded-word-region
602 "Function used to decode headers.")
603
604(defvar gnus-article-dumbquotes-map
605 '(("\202" ",")
606 ("\203" "f")
607 ("\204" ",,")
608 ("\205" "...")
609 ("\213" "<")
610 ("\214" "OE")
611 ("\221" "`")
612 ("\222" "'")
613 ("\223" "``")
614 ("\224" "\"")
615 ("\225" "*")
e0bad764
DL		 616 ("\226" "-")
617 ("\227" "--")
16409b0b
GM		 618 ("\231" "(TM)")
619 ("\233" ">")
620 ("\234" "oe")
621 ("\264" "'"))
622 "Table for MS-to-Latin1 translation.")
623
624(defcustom gnus-ignored-mime-types nil
625 "List of MIME types that should be ignored by Gnus."
fc2c2db8 626 :version "21.1"
16409b0b
GM		 627 :group 'gnus-article-mime
628 :type '(repeat regexp))
629
630(defcustom gnus-unbuttonized-mime-types '(".*/.*")
631 "List of MIME types that should not be given buttons when rendered inline."
fc2c2db8 632 :version "21.1"
16409b0b
GM		 633 :group 'gnus-article-mime
634 :type '(repeat regexp))
635
636(defcustom gnus-article-mime-part-function nil
637 "Function called with a MIME handle as the argument.
638This is meant for people who want to do something automatic based
639on parts -- for instance, adding Vcard info to a database."
640 :group 'gnus-article-mime
641 :type 'function)
642
643(defcustom gnus-mime-multipart-functions nil
fc2c2db8
DL		 644 "An alist of MIME types to functions to display them."
645 :version "21.1"
646 :group 'gnus-article-mime
647 :type 'alist)
16409b0b
GM		 648
649(defcustom gnus-article-date-lapsed-new-header nil
650 "Whether the X-Sent and Date headers can coexist.
651When using `gnus-treat-date-lapsed', the \"X-Sent:\" header will
652either replace the old \"Date:\" header (if this variable is nil), or
653be added below it (otherwise)."
fc2c2db8 654 :version "21.1"
16409b0b
GM		 655 :group 'gnus-article-headers
656 :type 'boolean)
657
658(defcustom gnus-article-mime-match-handle-function 'undisplayed-alternative
659 "Function called with a MIME handle as the argument.
660This is meant for people who want to view first matched part.
a1506d29
JB		 661For `undisplayed-alternative' (default), the first undisplayed
662part or alternative part is used. For `undisplayed', the first
663undisplayed part is used. For a function, the first part which
f20b2f5c 664the function return t is used. For nil, the first part is
16409b0b 665used."
fc2c2db8 666 :version "21.1"
16409b0b 667 :group 'gnus-article-mime
a1506d29 668 :type '(choice
16409b0b
GM		 669 (item :tag "first" :value nil)
670 (item :tag "undisplayed" :value undisplayed)
a1506d29 671 (item :tag "undisplayed or alternative"
16409b0b
GM		 672 :value undisplayed-alternative)
673 (function)))
674
e0bad764
DL		 675(defcustom gnus-mime-action-alist
676 '(("save to file" . gnus-mime-save-part)
677 ("display as text" . gnus-mime-inline-part)
678 ("view the part" . gnus-mime-view-part)
679 ("pipe to command" . gnus-mime-pipe-part)
680 ("toggle display" . gnus-article-press-button)
681 ("view as type" . gnus-mime-view-part-as-type)
682 ("internalize type" . gnus-mime-internalize-part)
683 ("externalize type" . gnus-mime-externalize-part))
684 "An alist of actions that run on the MIME attachment."
fc2c2db8 685 :version "21.1"
e0bad764
DL		 686 :group 'gnus-article-mime
687 :type '(repeat (cons (string :tag "name")
688 (function))))
689
16409b0b
GM		 690;;;
691;;; The treatment variables
692;;;
693
694(defvar gnus-part-display-hook nil
695 "Hook called on parts that are to receive treatment.")
696
697(defvar gnus-article-treat-custom
698 '(choice (const :tag "Off" nil)
699 (const :tag "On" t)
700 (const :tag "Header" head)
701 (const :tag "Last" last)
702 (integer :tag "Less")
703 (repeat :tag "Groups" regexp)
704 (sexp :tag "Predicate")))
705
706(defvar gnus-article-treat-head-custom
707 '(choice (const :tag "Off" nil)
708 (const :tag "Header" head)))
709
710(defvar gnus-article-treat-types '("text/plain")
711 "Parts to treat.")
712
713(defvar gnus-inhibit-treatment nil
714 "Whether to inhibit treatment.")
715
716(defcustom gnus-treat-highlight-signature '(or last (typep "text/x-vcard"))
717 "Highlight the signature.
718Valid values are nil, t, `head', `last', an integer or a predicate.
719See the manual for details."
720 :group 'gnus-article-treat
721 :type gnus-article-treat-custom)
722(put 'gnus-treat-highlight-signature 'highlight t)
723
724(defcustom gnus-treat-buttonize 100000
725 "Add buttons.
726Valid values are nil, t, `head', `last', an integer or a predicate.
727See the manual for details."
728 :group 'gnus-article-treat
729 :type gnus-article-treat-custom)
730(put 'gnus-treat-buttonize 'highlight t)
731
732(defcustom gnus-treat-buttonize-head 'head
733 "Add buttons to the head.
734Valid values are nil, t, `head', `last', an integer or a predicate.
735See the manual for details."
736 :group 'gnus-article-treat
737 :type gnus-article-treat-head-custom)
738(put 'gnus-treat-buttonize-head 'highlight t)
739
a1506d29 740(defcustom gnus-treat-emphasize
74dd1b0d
SZ		 741 (and (or window-system
742 (featurep 'xemacs)
743 (>= (string-to-number emacs-version) 21))
744 50000)
16409b0b
GM		 745 "Emphasize text.
746Valid values are nil, t, `head', `last', an integer or a predicate.
747See the manual for details."
748 :group 'gnus-article-treat
749 :type gnus-article-treat-custom)
750(put 'gnus-treat-emphasize 'highlight t)
751
752(defcustom gnus-treat-strip-cr nil
753 "Remove carriage returns.
754Valid values are nil, t, `head', `last', an integer or a predicate.
755See the manual for details."
756 :group 'gnus-article-treat
757 :type gnus-article-treat-custom)
758
759(defcustom gnus-treat-hide-headers 'head
760 "Hide headers.
761Valid values are nil, t, `head', `last', an integer or a predicate.
762See the manual for details."
763 :group 'gnus-article-treat
764 :type gnus-article-treat-head-custom)
765
766(defcustom gnus-treat-hide-boring-headers nil
767 "Hide boring headers.
768Valid values are nil, t, `head', `last', an integer or a predicate.
769See the manual for details."
770 :group 'gnus-article-treat
771 :type gnus-article-treat-head-custom)
772
773(defcustom gnus-treat-hide-signature nil
774 "Hide the signature.
775Valid values are nil, t, `head', `last', an integer or a predicate.
776See the manual for details."
777 :group 'gnus-article-treat
778 :type gnus-article-treat-custom)
779
780(defcustom gnus-treat-fill-article nil
781 "Fill the article.
782Valid values are nil, t, `head', `last', an integer or a predicate.
783See the manual for details."
784 :group 'gnus-article-treat
785 :type gnus-article-treat-custom)
786
787(defcustom gnus-treat-hide-citation nil
788 "Hide cited text.
789Valid values are nil, t, `head', `last', an integer or a predicate.
790See the manual for details."
791 :group 'gnus-article-treat
792 :type gnus-article-treat-custom)
793
e0bad764
DL		 794(defcustom gnus-treat-hide-citation-maybe nil
795 "Hide cited text.
796Valid values are nil, t, `head', `last', an integer or a predicate.
797See the manual for details."
798 :group 'gnus-article-treat
799 :type gnus-article-treat-custom)
800
16409b0b
GM		 801(defcustom gnus-treat-strip-list-identifiers 'head
802 "Strip list identifiers from `gnus-list-identifiers`.
803Valid values are nil, t, `head', `last', an integer or a predicate.
804See the manual for details."
fc2c2db8 805 :version "21.1"
16409b0b
GM		 806 :group 'gnus-article-treat
807 :type gnus-article-treat-custom)
808
809(defcustom gnus-treat-strip-pgp t
810 "Strip PGP signatures.
811Valid values are nil, t, `head', `last', an integer or a predicate.
812See the manual for details."
813 :group 'gnus-article-treat
814 :type gnus-article-treat-custom)
815
816(defcustom gnus-treat-strip-pem nil
817 "Strip PEM signatures.
818Valid values are nil, t, `head', `last', an integer or a predicate.
819See the manual for details."
820 :group 'gnus-article-treat
821 :type gnus-article-treat-custom)
822
823(defcustom gnus-treat-strip-banner t
824 "Strip banners from articles.
825The banner to be stripped is specified in the `banner' group parameter.
826Valid values are nil, t, `head', `last', an integer or a predicate.
827See the manual for details."
828 :group 'gnus-article-treat
829 :type gnus-article-treat-custom)
830
831(defcustom gnus-treat-highlight-headers 'head
832 "Highlight the headers.
833Valid values are nil, t, `head', `last', an integer or a predicate.
834See the manual for details."
835 :group 'gnus-article-treat
836 :type gnus-article-treat-head-custom)
837(put 'gnus-treat-highlight-headers 'highlight t)
838
839(defcustom gnus-treat-highlight-citation t
840 "Highlight cited text.
841Valid values are nil, t, `head', `last', an integer or a predicate.
842See the manual for details."
843 :group 'gnus-article-treat
844 :type gnus-article-treat-custom)
845(put 'gnus-treat-highlight-citation 'highlight t)
846
847(defcustom gnus-treat-date-ut nil
848 "Display the Date in UT (GMT).
849Valid values are nil, t, `head', `last', an integer or a predicate.
850See the manual for details."
851 :group 'gnus-article-treat
852 :type gnus-article-treat-head-custom)
853
854(defcustom gnus-treat-date-local nil
855 "Display the Date in the local timezone.
856Valid values are nil, t, `head', `last', an integer or a predicate.
857See the manual for details."
858 :group 'gnus-article-treat
859 :type gnus-article-treat-head-custom)
860
861(defcustom gnus-treat-date-lapsed nil
862 "Display the Date header in a way that says how much time has elapsed.
863Valid values are nil, t, `head', `last', an integer or a predicate.
864See the manual for details."
865 :group 'gnus-article-treat
866 :type gnus-article-treat-head-custom)
867
868(defcustom gnus-treat-date-original nil
869 "Display the date in the original timezone.
870Valid values are nil, t, `head', `last', an integer or a predicate.
871See the manual for details."
872 :group 'gnus-article-treat
873 :type gnus-article-treat-head-custom)
874
875(defcustom gnus-treat-date-iso8601 nil
876 "Display the date in the ISO8601 format.
877Valid values are nil, t, `head', `last', an integer or a predicate.
878See the manual for details."
fc2c2db8 879 :version "21.1"
16409b0b
GM		 880 :group 'gnus-article-treat
881 :type gnus-article-treat-head-custom)
882
883(defcustom gnus-treat-date-user-defined nil
884 "Display the date in a user-defined format.
885The format is defined by the `gnus-article-time-format' variable.
886Valid values are nil, t, `head', `last', an integer or a predicate.
887See the manual for details."
888 :group 'gnus-article-treat
889 :type gnus-article-treat-head-custom)
890
891(defcustom gnus-treat-strip-headers-in-body t
892 "Strip the X-No-Archive header line from the beginning of the body.
893Valid values are nil, t, `head', `last', an integer or a predicate.
894See the manual for details."
fc2c2db8 895 :version "21.1"
16409b0b
GM		 896 :group 'gnus-article-treat
897 :type gnus-article-treat-custom)
898
899(defcustom gnus-treat-strip-trailing-blank-lines nil
900 "Strip trailing blank lines.
901Valid values are nil, t, `head', `last', an integer or a predicate.
902See the manual for details."
903 :group 'gnus-article-treat
904 :type gnus-article-treat-custom)
905
906(defcustom gnus-treat-strip-leading-blank-lines nil
907 "Strip leading blank lines.
908Valid values are nil, t, `head', `last', an integer or a predicate.
909See the manual for details."
910 :group 'gnus-article-treat
911 :type gnus-article-treat-custom)
912
913(defcustom gnus-treat-strip-multiple-blank-lines nil
914 "Strip multiple blank lines.
915Valid values are nil, t, `head', `last', an integer or a predicate.
916See the manual for details."
917 :group 'gnus-article-treat
918 :type gnus-article-treat-custom)
919
920(defcustom gnus-treat-overstrike t
921 "Treat overstrike highlighting.
922Valid values are nil, t, `head', `last', an integer or a predicate.
923See the manual for details."
924 :group 'gnus-article-treat
925 :type gnus-article-treat-custom)
926(put 'gnus-treat-overstrike 'highlight t)
927
a1506d29 928(defcustom gnus-treat-display-xface
8b93df01 929 (and (or (and (fboundp 'image-type-available-p)
e0bad764
DL		 930 (image-type-available-p 'xbm)
931 (string-match "^0x" (shell-command-to-string "uncompface")))
4ddf0e64 932 (and (featurep 'xemacs) (featurep 'xface)))
8b93df01 933 'head)
16409b0b
GM		 934 "Display X-Face headers.
935Valid values are nil, t, `head', `last', an integer or a predicate.
936See the manual for details."
937 :group 'gnus-article-treat
b5a206e7 938 :version "21.1"
16409b0b
GM		 939 :type gnus-article-treat-head-custom)
940(put 'gnus-treat-display-xface 'highlight t)
941
a1506d29 942(defcustom gnus-treat-display-smileys
e0bad764
DL		 943 (if (or (and (featurep 'xemacs)
944 (featurep 'xpm))
945 (and (fboundp 'image-type-available-p)
946 (image-type-available-p 'pbm)))
947 t nil)
16409b0b
GM		 948 "Display smileys.
949Valid values are nil, t, `head', `last', an integer or a predicate.
950See the manual for details."
951 :group 'gnus-article-treat
b5a206e7 952 :version "21.1"
16409b0b
GM		 953 :type gnus-article-treat-custom)
954(put 'gnus-treat-display-smileys 'highlight t)
955
4ddf0e64 956(defcustom gnus-treat-display-picons (if (featurep 'xemacs) 'head nil)
16409b0b
GM		 957 "Display picons.
958Valid values are nil, t, `head', `last', an integer or a predicate.
959See the manual for details."
960 :group 'gnus-article-treat
961 :type gnus-article-treat-head-custom)
962(put 'gnus-treat-display-picons 'highlight t)
963
964(defcustom gnus-treat-capitalize-sentences nil
965 "Capitalize sentence-starting words.
966Valid values are nil, t, `head', `last', an integer or a predicate.
967See the manual for details."
fc2c2db8 968 :version "21.1"
16409b0b
GM		 969 :group 'gnus-article-treat
970 :type gnus-article-treat-custom)
971
972(defcustom gnus-treat-fill-long-lines nil
973 "Fill long lines.
974Valid values are nil, t, `head', `last', an integer or a predicate.
975See the manual for details."
976 :group 'gnus-article-treat
977 :type gnus-article-treat-custom)
978
979(defcustom gnus-treat-play-sounds nil
980 "Play sounds.
981Valid values are nil, t, `head', `last', an integer or a predicate.
982See the manual for details."
fc2c2db8 983 :version "21.1"
16409b0b
GM		 984 :group 'gnus-article-treat
985 :type gnus-article-treat-custom)
986
987(defcustom gnus-treat-translate nil
988 "Translate articles from one language to another.
989Valid values are nil, t, `head', `last', an integer or a predicate.
990See the manual for details."
fc2c2db8 991 :version "21.1"
16409b0b
GM		 992 :group 'gnus-article-treat
993 :type gnus-article-treat-custom)
994
eec82323
LMI		 995;;; Internal variables
996
16409b0b
GM		 997(defvar article-goto-body-goes-to-point-min-p nil)
998(defvar gnus-article-wash-types nil)
999(defvar gnus-article-emphasis-alist nil)
1000
1001(defvar gnus-article-mime-handle-alist-1 nil)
1002(defvar gnus-treatment-function-alist
1003 '((gnus-treat-strip-banner gnus-article-strip-banner)
1004 (gnus-treat-strip-headers-in-body gnus-article-strip-headers-in-body)
1005 (gnus-treat-highlight-signature gnus-article-highlight-signature)
1006 (gnus-treat-buttonize gnus-article-add-buttons)
1007 (gnus-treat-fill-article gnus-article-fill-cited-article)
1008 (gnus-treat-fill-long-lines gnus-article-fill-long-lines)
1009 (gnus-treat-strip-cr gnus-article-remove-cr)
1010 (gnus-treat-emphasize gnus-article-emphasize)
1011 (gnus-treat-display-xface gnus-article-display-x-face)
1012 (gnus-treat-hide-headers gnus-article-maybe-hide-headers)
1013 (gnus-treat-hide-boring-headers gnus-article-hide-boring-headers)
1014 (gnus-treat-hide-signature gnus-article-hide-signature)
1015 (gnus-treat-hide-citation gnus-article-hide-citation)
e0bad764 1016 (gnus-treat-hide-citation-maybe gnus-article-hide-citation-maybe)
16409b0b
GM		 1017 (gnus-treat-strip-list-identifiers gnus-article-hide-list-identifiers)
1018 (gnus-treat-strip-pgp gnus-article-hide-pgp)
1019 (gnus-treat-strip-pem gnus-article-hide-pem)
1020 (gnus-treat-highlight-headers gnus-article-highlight-headers)
1021 (gnus-treat-highlight-citation gnus-article-highlight-citation)
1022 (gnus-treat-highlight-signature gnus-article-highlight-signature)
1023 (gnus-treat-date-ut gnus-article-date-ut)
1024 (gnus-treat-date-local gnus-article-date-local)
1025 (gnus-treat-date-lapsed gnus-article-date-lapsed)
1026 (gnus-treat-date-original gnus-article-date-original)
1027 (gnus-treat-date-user-defined gnus-article-date-user)
1028 (gnus-treat-date-iso8601 gnus-article-date-iso8601)
1029 (gnus-treat-strip-trailing-blank-lines
1030 gnus-article-remove-trailing-blank-lines)
1031 (gnus-treat-strip-leading-blank-lines
1032 gnus-article-strip-leading-blank-lines)
1033 (gnus-treat-strip-multiple-blank-lines
1034 gnus-article-strip-multiple-blank-lines)
1035 (gnus-treat-overstrike gnus-article-treat-overstrike)
1036 (gnus-treat-buttonize-head gnus-article-add-buttons-to-head)
1037 (gnus-treat-display-smileys gnus-smiley-display)
1038 (gnus-treat-capitalize-sentences gnus-article-capitalize-sentences)
1039 (gnus-treat-display-picons gnus-article-display-picons)
1040 (gnus-treat-play-sounds gnus-earcon-display)))
1041
1042(defvar gnus-article-mime-handle-alist nil)
6748645f
LMI		 1043(defvar article-lapsed-timer nil)
1044(defvar gnus-article-current-summary nil)
1045
eec82323
LMI		 1046(defvar gnus-article-mode-syntax-table
1047 (let ((table (copy-syntax-table text-mode-syntax-table)))
1048 (modify-syntax-entry ?- "w" table)
1049 (modify-syntax-entry ?> ")" table)
1050 (modify-syntax-entry ?< "(" table)
1051 table)
1052 "Syntax table used in article mode buffers.
1053Initialized from `text-mode-syntax-table.")
1054
1055(defvar gnus-save-article-buffer nil)
1056
1057(defvar gnus-article-mode-line-format-alist
16409b0b
GM		 1058 (nconc '((?w (gnus-article-wash-status) ?s)
1059 (?m (gnus-article-mime-part-status) ?s))
6748645f 1060 gnus-summary-mode-line-format-alist))
eec82323
LMI		 1061
1062(defvar gnus-number-of-articles-to-be-saved nil)
1063
1064(defvar gnus-inhibit-hiding nil)
1065
1066(defsubst gnus-article-hide-text (b e props)
1067 "Set text PROPS on the B to E region, extending `intangible' 1 past B."
520aa572 1068 (gnus-add-text-properties-when 'article-type nil b e props)
eec82323
LMI		 1069 (when (memq 'intangible props)
1070 (put-text-property
1071 (max (1- b) (point-min))
1072 b 'intangible (cddr (memq 'intangible props)))))
520aa572 1073
eec82323
LMI		 1074(defsubst gnus-article-unhide-text (b e)
1075 "Remove hidden text properties from region between B and E."
1076 (remove-text-properties b e gnus-hidden-properties)
1077 (when (memq 'intangible gnus-hidden-properties)
1078 (put-text-property (max (1- b) (point-min))
1079 b 'intangible nil)))
1080
1081(defun gnus-article-hide-text-type (b e type)
1082 "Hide text of TYPE between B and E."
16409b0b 1083 (push type gnus-article-wash-types)
eec82323
LMI		 1084 (gnus-article-hide-text
1085 b e (cons 'article-type (cons type gnus-hidden-properties))))
1086
1087(defun gnus-article-unhide-text-type (b e type)
6748645f 1088 "Unhide text of TYPE between B and E."
16409b0b
GM		 1089 (setq gnus-article-wash-types
1090 (delq type gnus-article-wash-types))
eec82323
LMI		 1091 (remove-text-properties
1092 b e (cons 'article-type (cons type gnus-hidden-properties)))
1093 (when (memq 'intangible gnus-hidden-properties)
1094 (put-text-property (max (1- b) (point-min))
1095 b 'intangible nil)))
1096
1097(defun gnus-article-hide-text-of-type (type)
1098 "Hide text of TYPE in the current buffer."
1099 (save-excursion
1100 (let ((b (point-min))
1101 (e (point-max)))
1102 (while (setq b (text-property-any b e 'article-type type))
1103 (add-text-properties b (incf b) gnus-hidden-properties)))))
1104
1105(defun gnus-article-delete-text-of-type (type)
1106 "Delete text of TYPE in the current buffer."
1107 (save-excursion
a8151ef7
LMI		 1108 (let ((b (point-min)))
1109 (while (setq b (text-property-any b (point-max) 'article-type type))
1110 (delete-region
1111 b (or (text-property-not-all b (point-max) 'article-type type)
1112 (point-max)))))))
eec82323
LMI		 1113
1114(defun gnus-article-delete-invisible-text ()
1115 "Delete all invisible text in the current buffer."
1116 (save-excursion
a8151ef7
LMI		 1117 (let ((b (point-min)))
1118 (while (setq b (text-property-any b (point-max) 'invisible t))
1119 (delete-region
1120 b (or (text-property-not-all b (point-max) 'invisible t)
1121 (point-max)))))))
eec82323
LMI		 1122
1123(defun gnus-article-text-type-exists-p (type)
1124 "Say whether any text of type TYPE exists in the buffer."
1125 (text-property-any (point-min) (point-max) 'article-type type))
1126
1127(defsubst gnus-article-header-rank ()
1128 "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
1129 (let ((list gnus-sorted-header-list)
1130 (i 0))
1131 (while list
1132 (when (looking-at (car list))
1133 (setq list nil))
1134 (setq list (cdr list))
1135 (incf i))
1136 i))
1137
1138(defun article-hide-headers (&optional arg delete)
16409b0b
GM		 1139 "Hide unwanted headers and possibly sort them as well."
1140 (interactive)
1141 ;; This function might be inhibited.
1142 (unless gnus-inhibit-hiding
1143 (save-excursion
1144 (save-restriction
1145 (let ((buffer-read-only nil)
1146 (case-fold-search t)
1147 (max (1+ (length gnus-sorted-header-list)))
1148 (ignored (when (not gnus-visible-headers)
1149 (cond ((stringp gnus-ignored-headers)
1150 gnus-ignored-headers)
1151 ((listp gnus-ignored-headers)
1152 (mapconcat 'identity gnus-ignored-headers
1153 "\\|")))))
1154 (visible
1155 (cond ((stringp gnus-visible-headers)
1156 gnus-visible-headers)
1157 ((and gnus-visible-headers
1158 (listp gnus-visible-headers))
1159 (mapconcat 'identity gnus-visible-headers "\\|"))))
1160 (inhibit-point-motion-hooks t)
1161 beg)
1162 ;; First we narrow to just the headers.
1163 (article-narrow-to-head)
1164 ;; Hide any "From " lines at the beginning of (mail) articles.
1165 (while (looking-at "From ")
1166 (forward-line 1))
1167 (unless (bobp)
1168 (delete-region (point-min) (point)))
1169 ;; Then treat the rest of the header lines.
1170 ;; Then we use the two regular expressions
1171 ;; `gnus-ignored-headers' and `gnus-visible-headers' to
1172 ;; select which header lines is to remain visible in the
1173 ;; article buffer.
1174 (while (re-search-forward "^[^ \t]*:" nil t)
1175 (beginning-of-line)
1176 ;; Mark the rank of the header.
1177 (put-text-property
1178 (point) (1+ (point)) 'message-rank
1179 (if (or (and visible (looking-at visible))
1180 (and ignored
1181 (not (looking-at ignored))))
1182 (gnus-article-header-rank)
1183 (+ 2 max)))
1184 (forward-line 1))
1185 (message-sort-headers-1)
1186 (when (setq beg (text-property-any
1187 (point-min) (point-max) 'message-rank (+ 2 max)))
1188 ;; We delete the unwanted headers.
1189 (push 'headers gnus-article-wash-types)
1190 (add-text-properties (point-min) (+ 5 (point-min))
1191 '(article-type headers dummy-invisible t))
1192 (delete-region beg (point-max))))))))
eec82323
LMI		 1193
1194(defun article-hide-boring-headers (&optional arg)
1195 "Toggle hiding of headers that aren't very interesting.
1196If given a negative prefix, always show; if given a positive prefix,
1197always hide."
1198 (interactive (gnus-article-hidden-arg))
1199 (when (and (not (gnus-article-check-hidden-text 'boring-headers arg))
1200 (not gnus-show-all-headers))
1201 (save-excursion
1202 (save-restriction
1203 (let ((buffer-read-only nil)
1204 (list gnus-boring-article-headers)
1205 (inhibit-point-motion-hooks t)
1206 elem)
16409b0b 1207 (article-narrow-to-head)
eec82323
LMI		 1208 (while list
1209 (setq elem (pop list))
1210 (goto-char (point-min))
1211 (cond
1212 ;; Hide empty headers.
1213 ((eq elem 'empty)
16409b0b 1214 (while (re-search-forward "^[^: \t]+:[ \t]*\n[^ \t]" nil t)
eec82323
LMI		 1215 (forward-line -1)
1216 (gnus-article-hide-text-type
1217 (progn (beginning-of-line) (point))
1218 (progn
1219 (end-of-line)
1220 (if (re-search-forward "^[^ \t]" nil t)
1221 (match-beginning 0)
1222 (point-max)))
1223 'boring-headers)))
1224 ;; Hide boring Newsgroups header.
1225 ((eq elem 'newsgroups)
1226 (when (equal (gnus-fetch-field "newsgroups")
1227 (gnus-group-real-name
1228 (if (boundp 'gnus-newsgroup-name)
1229 gnus-newsgroup-name
1230 "")))
1231 (gnus-article-hide-header "newsgroups")))
1232 ((eq elem 'followup-to)
1233 (when (equal (message-fetch-field "followup-to")
1234 (message-fetch-field "newsgroups"))
1235 (gnus-article-hide-header "followup-to")))
1236 ((eq elem 'reply-to)
1237 (let ((from (message-fetch-field "from"))
1238 (reply-to (message-fetch-field "reply-to")))
1239 (when (and
1240 from reply-to
1241 (ignore-errors
1242 (equal
1243 (nth 1 (mail-extract-address-components from))
1244 (nth 1 (mail-extract-address-components reply-to)))))
1245 (gnus-article-hide-header "reply-to"))))
1246 ((eq elem 'date)
1247 (let ((date (message-fetch-field "date")))
1248 (when (and date
16409b0b 1249 (< (days-between (current-time-string) date)
eec82323 1250 4))
6748645f
LMI		 1251 (gnus-article-hide-header "date"))))
1252 ((eq elem 'long-to)
16409b0b
GM		 1253 (let ((to (message-fetch-field "to"))
1254 (cc (message-fetch-field "cc")))
6748645f 1255 (when (> (length to) 1024)
16409b0b
GM		 1256 (gnus-article-hide-header "to"))
1257 (when (> (length cc) 1024)
1258 (gnus-article-hide-header "cc"))))
6748645f 1259 ((eq elem 'many-to)
16409b0b
GM		 1260 (let ((to-count 0)
1261 (cc-count 0))
6748645f
LMI		 1262 (goto-char (point-min))
1263 (while (re-search-forward "^to:" nil t)
1264 (setq to-count (1+ to-count)))
1265 (when (> to-count 1)
1266 (while (> to-count 0)
1267 (goto-char (point-min))
1268 (save-restriction
1269 (re-search-forward "^to:" nil nil to-count)
1270 (forward-line -1)
1271 (narrow-to-region (point) (point-max))
1272 (gnus-article-hide-header "to"))
16409b0b
GM		 1273 (setq to-count (1- to-count))))
1274 (goto-char (point-min))
1275 (while (re-search-forward "^cc:" nil t)
1276 (setq cc-count (1+ cc-count)))
1277 (when (> cc-count 1)
1278 (while (> cc-count 0)
1279 (goto-char (point-min))
1280 (save-restriction
1281 (re-search-forward "^cc:" nil nil cc-count)
1282 (forward-line -1)
1283 (narrow-to-region (point) (point-max))
1284 (gnus-article-hide-header "cc"))
1285 (setq cc-count (1- cc-count)))))))))))))
eec82323
LMI		 1286
1287(defun gnus-article-hide-header (header)
1288 (save-excursion
1289 (goto-char (point-min))
1290 (when (re-search-forward (concat "^" header ":") nil t)
1291 (gnus-article-hide-text-type
1292 (progn (beginning-of-line) (point))
1293 (progn
1294 (end-of-line)
1295 (if (re-search-forward "^[^ \t]" nil t)
1296 (match-beginning 0)
1297 (point-max)))
1298 'boring-headers))))
1299
16409b0b
GM		 1300(defvar gnus-article-normalized-header-length 40
1301 "Length of normalized headers.")
1302
1303(defun article-normalize-headers ()
1304 "Make all header lines 40 characters long."
1305 (interactive)
1306 (let ((buffer-read-only nil)
1307 column)
1308 (save-excursion
1309 (save-restriction
1310 (article-narrow-to-head)
1311 (while (not (eobp))
1312 (cond
1313 ((< (setq column (- (gnus-point-at-eol) (point)))
1314 gnus-article-normalized-header-length)
1315 (end-of-line)
1316 (insert (make-string
1317 (- gnus-article-normalized-header-length column)
1318 ? )))
1319 ((> column gnus-article-normalized-header-length)
1320 (gnus-put-text-property
1321 (progn
1322 (forward-char gnus-article-normalized-header-length)
1323 (point))
1324 (gnus-point-at-eol)
1325 'invisible t))
1326 (t
1327 ;; Do nothing.
1328 ))
1329 (forward-line 1))))))
1330
6748645f 1331(defun article-treat-dumbquotes ()
74dd1b0d 1332 "Translate M****s*** sm*rtq**t*s into proper text.
16409b0b 1333Note that this function guesses whether a character is a sm*rtq**t* or
74dd1b0d
SZ		 1334not, so it should only be used interactively.
1335
1336Sm*rtq**t*s are M****s***'s unilateral extension to the character map
1337in an attempt to provide more quoting characters. If you see
1338something like \\222 or \\264 where you're expecting some kind of
1339apostrophe or quotation mark, then try this wash."
6748645f 1340 (interactive)
16409b0b 1341 (article-translate-strings gnus-article-dumbquotes-map))
6748645f
LMI		 1342
1343(defun article-translate-characters (from to)
1344 "Translate all characters in the body of the article according to FROM and TO.
1345FROM is a string of characters to translate from; to is a string of
1346characters to translate to."
1347 (save-excursion
16409b0b 1348 (when (article-goto-body)
6748645f
LMI		 1349 (let ((buffer-read-only nil)
1350 (x (make-string 225 ?x))
1351 (i -1))
1352 (while (< (incf i) (length x))
1353 (aset x i i))
1354 (setq i 0)
1355 (while (< i (length from))
1356 (aset x (aref from i) (aref to i))
1357 (incf i))
1358 (translate-region (point) (point-max) x)))))
1359
16409b0b
GM		 1360(defun article-translate-strings (map)
1361 "Translate all string in the body of the article according to MAP.
1362MAP is an alist where the elements are on the form (\"from\" \"to\")."
1363 (save-excursion
1364 (when (article-goto-body)
1365 (let ((buffer-read-only nil)
1366 elem)
1367 (while (setq elem (pop map))
1368 (save-excursion
1369 (while (search-forward (car elem) nil t)
1370 (replace-match (cadr elem)))))))))
1371
eec82323
LMI		 1372(defun article-treat-overstrike ()
1373 "Translate overstrikes into bold text."
1374 (interactive)
1375 (save-excursion
16409b0b 1376 (when (article-goto-body)
eec82323
LMI		 1377 (let ((buffer-read-only nil))
1378 (while (search-forward "\b" nil t)
16409b0b 1379 (let ((next (char-after))
eec82323
LMI		 1380 (previous (char-after (- (point) 2))))
1381 ;; We do the boldification/underlining by hiding the
1382 ;; overstrikes and putting the proper text property
1383 ;; on the letters.
1384 (cond
1385 ((eq next previous)
1386 (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
1387 (put-text-property (point) (1+ (point)) 'face 'bold))
1388 ((eq next ?_)
1389 (gnus-article-hide-text-type
1390 (1- (point)) (1+ (point)) 'overstrike)
1391 (put-text-property
1392 (- (point) 2) (1- (point)) 'face 'underline))
1393 ((eq previous ?_)
1394 (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
1395 (put-text-property
1396 (point) (1+ (point)) 'face 'underline)))))))))
1397
16409b0b
GM		 1398(defun article-fill-long-lines ()
1399 "Fill lines that are wider than the window width."
eec82323
LMI		 1400 (interactive)
1401 (save-excursion
16409b0b
GM		 1402 (let ((buffer-read-only nil)
1403 (width (window-width (get-buffer-window (current-buffer)))))
1404 (save-restriction
1405 (article-goto-body)
80b47379 1406 (let ((adaptive-fill-mode nil)) ;Why? -sm
16409b0b
GM		 1407 (while (not (eobp))
1408 (end-of-line)
1409 (when (>= (current-column) (min fill-column width))
1410 (narrow-to-region (point) (gnus-point-at-bol))
1411 (fill-paragraph nil)
1412 (goto-char (point-max))
1413 (widen))
1414 (forward-line 1)))))))
1415
1416(defun article-capitalize-sentences ()
1417 "Capitalize the first word in each sentence."
1418 (interactive)
1419 (save-excursion
1420 (let ((buffer-read-only nil)
1421 (paragraph-start "^[\n\^L]"))
1422 (article-goto-body)
1423 (while (not (eobp))
1424 (capitalize-word 1)
1425 (forward-sentence)))))
eec82323
LMI		 1426
1427(defun article-remove-cr ()
16409b0b 1428 "Remove trailing CRs and then translate remaining CRs into LFs."
eec82323
LMI		 1429 (interactive)
1430 (save-excursion
1431 (let ((buffer-read-only nil))
1432 (goto-char (point-min))
16409b0b
GM		 1433 (while (re-search-forward "\r+$" nil t)
1434 (replace-match "" t t))
1435 (goto-char (point-min))
eec82323 1436 (while (search-forward "\r" nil t)
16409b0b 1437 (replace-match "\n" t t)))))
eec82323
LMI		 1438
1439(defun article-remove-trailing-blank-lines ()
1440 "Remove all trailing blank lines from the article."
1441 (interactive)
1442 (save-excursion
1443 (let ((buffer-read-only nil))
1444 (goto-char (point-max))
1445 (delete-region
1446 (point)
1447 (progn
1448 (while (and (not (bobp))
16409b0b
GM		 1449 (looking-at "^[ \t]*$")
1450 (not (gnus-annotation-in-region-p
1451 (point) (gnus-point-at-eol))))
eec82323
LMI		 1452 (forward-line -1))
1453 (forward-line 1)
1454 (point))))))
1455
1456(defun article-display-x-face (&optional force)
1457 "Look for an X-Face header and display it if present."
1458 (interactive (list 'force))
1459 (save-excursion
1460 ;; Delete the old process, if any.
1461 (when (process-status "article-x-face")
1462 (delete-process "article-x-face"))
1463 (let ((inhibit-point-motion-hooks t)
6748645f
LMI		 1464 (case-fold-search t)
1465 from last)
eec82323 1466 (save-restriction
16409b0b
GM		 1467 (article-narrow-to-head)
1468 (goto-char (point-min))
eec82323
LMI		 1469 (setq from (message-fetch-field "from"))
1470 (goto-char (point-min))
a8151ef7 1471 (while (and gnus-article-x-face-command
6748645f 1472 (not last)
a8151ef7
LMI		 1473 (or force
1474 ;; Check whether this face is censored.
1475 (not gnus-article-x-face-too-ugly)
1476 (and gnus-article-x-face-too-ugly from
1477 (not (string-match gnus-article-x-face-too-ugly
1478 from))))
1479 ;; Has to be present.
1480 (re-search-forward "^X-Face: " nil t))
6748645f
LMI		 1481 ;; This used to try to do multiple faces (`while' instead of
1482 ;; `when' above), but (a) sending multiple EOFs to xv doesn't
1483 ;; work (b) it can crash some versions of Emacs (c) are
1484 ;; multiple faces really something to encourage?
1485 (when (stringp gnus-article-x-face-command)
1486 (setq last t))
eec82323 1487 ;; We now have the area of the buffer where the X-Face is stored.
a8151ef7
LMI		 1488 (save-excursion
1489 (let ((beg (point))
1490 (end (1- (re-search-forward "^\\($\\|[^ \t]\\)" nil t))))
1491 ;; We display the face.
1492 (if (symbolp gnus-article-x-face-command)
1493 ;; The command is a lisp function, so we call it.
1494 (if (gnus-functionp gnus-article-x-face-command)
1495 (funcall gnus-article-x-face-command beg end)
1496 (error "%s is not a function" gnus-article-x-face-command))
1497 ;; The command is a string, so we interpret the command
1498 ;; as a, well, command, and fork it off.
1499 (let ((process-connection-type nil))
1500 (process-kill-without-query
1501 (start-process
1502 "article-x-face" nil shell-file-name shell-command-switch
1503 gnus-article-x-face-command))
1504 (process-send-region "article-x-face" beg end)
1505 (process-send-eof "article-x-face"))))))))))
1506
16409b0b
GM		 1507(defun article-decode-mime-words ()
1508 "Decode all MIME-encoded words in the article."
1509 (interactive)
1510 (save-excursion
1511 (set-buffer gnus-article-buffer)
1512 (let ((inhibit-point-motion-hooks t)
1513 buffer-read-only
1514 (mail-parse-charset gnus-newsgroup-charset)
a1506d29 1515 (mail-parse-ignored-charsets
16409b0b
GM		 1516 (save-excursion (set-buffer gnus-summary-buffer)
1517 gnus-newsgroup-ignored-charsets)))
1518 (mail-decode-encoded-word-region (point-min) (point-max)))))
1519
1520(defun article-decode-charset (&optional prompt)
1521 "Decode charset-encoded text in the article.
1522If PROMPT (the prefix), prompt for a coding system to use."
1523 (interactive "P")
1524 (let ((inhibit-point-motion-hooks t) (case-fold-search t)
1525 buffer-read-only
1526 (mail-parse-charset gnus-newsgroup-charset)
a1506d29 1527 (mail-parse-ignored-charsets
16409b0b
GM		 1528 (save-excursion (condition-case nil
1529 (set-buffer gnus-summary-buffer)
1530 (error))
1531 gnus-newsgroup-ignored-charsets))
1532 ct cte ctl charset format)
1533 (save-excursion
eec82323 1534 (save-restriction
16409b0b
GM		 1535 (article-narrow-to-head)
1536 (setq ct (message-fetch-field "Content-Type" t)
1537 cte (message-fetch-field "Content-Transfer-Encoding" t)
1538 ctl (and ct (ignore-errors
1539 (mail-header-parse-content-type ct)))
1540 charset (cond
1541 (prompt
1542 (mm-read-coding-system "Charset to decode: "))
1543 (ctl
1544 (mail-content-type-get ctl 'charset)))
1545 format (and ctl (mail-content-type-get ctl 'format)))
1546 (when cte
1547 (setq cte (mail-header-strip cte)))
a1506d29 1548 (if (and ctl (not (string-match "/" (car ctl))))
16409b0b
GM		 1549 (setq ctl nil))
1550 (goto-char (point-max)))
1551 (forward-line 1)
1552 (save-restriction
1553 (narrow-to-region (point) (point-max))
1554 (when (and (eq mail-parse-charset 'gnus-decoded)
1555 (eq (mm-body-7-or-8) '8bit))
1556 ;; The text code could have been decoded.
1557 (setq charset mail-parse-charset))
1558 (when (and (or (not ctl)
1559 (equal (car ctl) "text/plain"))
1560 (not format)) ;; article with format will decode later.
1561 (mm-decode-body
1562 charset (and cte (intern (downcase
1563 (gnus-strip-whitespace cte))))
1564 (car ctl)))))))
1565
1566(defun article-decode-encoded-words ()
1567 "Remove encoded-word encoding from headers."
1568 (let ((inhibit-point-motion-hooks t)
1569 (mail-parse-charset gnus-newsgroup-charset)
a1506d29 1570 (mail-parse-ignored-charsets
16409b0b
GM		 1571 (save-excursion (condition-case nil
1572 (set-buffer gnus-summary-buffer)
1573 (error))
1574 gnus-newsgroup-ignored-charsets))
1575 buffer-read-only)
1576 (save-restriction
1577 (article-narrow-to-head)
1578 (funcall gnus-decode-header-function (point-min) (point-max)))))
eec82323
LMI		 1579
1580(defun article-de-quoted-unreadable (&optional force)
16409b0b 1581 "Translate a quoted-printable-encoded article.
eec82323
LMI		 1582If FORCE, decode the article whether it is marked as quoted-printable
1583or not."
1584 (interactive (list 'force))
1585 (save-excursion
8b93df01
DL		 1586 (let ((buffer-read-only nil) type charset)
1587 (if (gnus-buffer-live-p gnus-original-article-buffer)
1588 (with-current-buffer gnus-original-article-buffer
1589 (setq type
1590 (gnus-fetch-field "content-transfer-encoding"))
1591 (let* ((ct (gnus-fetch-field "content-type"))
a1506d29 1592 (ctl (and ct
8b93df01
DL		 1593 (ignore-errors
1594 (mail-header-parse-content-type ct)))))
1595 (setq charset (and ctl
1596 (mail-content-type-get ctl 'charset)))
1597 (if (stringp charset)
1598 (setq charset (intern (downcase charset)))))))
a1506d29 1599 (unless charset
8b93df01 1600 (setq charset gnus-newsgroup-charset))
eec82323 1601 (when (or force
eb806ef3
DL		 1602 (and type (let ((case-fold-search t))
1603 (string-match "quoted-printable" type))))
16409b0b 1604 (article-goto-body)
eb806ef3
DL		 1605 (quoted-printable-decode-region
1606 (point) (point-max) (mm-charset-to-coding-system charset))))))
16409b0b
GM		 1607
1608(defun article-de-base64-unreadable (&optional force)
1609 "Translate a base64 article.
1610If FORCE, decode the article whether it is marked as base64 not."
1611 (interactive (list 'force))
1612 (save-excursion
8b93df01
DL		 1613 (let ((buffer-read-only nil) type charset)
1614 (if (gnus-buffer-live-p gnus-original-article-buffer)
1615 (with-current-buffer gnus-original-article-buffer
1616 (setq type
1617 (gnus-fetch-field "content-transfer-encoding"))
1618 (let* ((ct (gnus-fetch-field "content-type"))
a1506d29 1619 (ctl (and ct
8b93df01
DL		 1620 (ignore-errors
1621 (mail-header-parse-content-type ct)))))
1622 (setq charset (and ctl
1623 (mail-content-type-get ctl 'charset)))
1624 (if (stringp charset)
1625 (setq charset (intern (downcase charset)))))))
a1506d29 1626 (unless charset
8b93df01 1627 (setq charset gnus-newsgroup-charset))
16409b0b 1628 (when (or force
eb806ef3
DL		 1629 (and type (let ((case-fold-search t))
1630 (string-match "base64" type))))
16409b0b
GM		 1631 (article-goto-body)
1632 (save-restriction
1633 (narrow-to-region (point) (point-max))
1634 (base64-decode-region (point-min) (point-max))
eb806ef3
DL		 1635 (mm-decode-coding-region
1636 (point-min) (point-max) (mm-charset-to-coding-system charset)))))))
16409b0b
GM		 1637
1638(eval-when-compile
1639 (require 'rfc1843))
1640
1641(defun article-decode-HZ ()
1642 "Translate a HZ-encoded article."
1643 (interactive)
1644 (require 'rfc1843)
1645 (save-excursion
1646 (let ((buffer-read-only nil))
1647 (rfc1843-decode-region (point-min) (point-max)))))
1648
1649(defun article-wash-html ()
1650 "Format an html article."
1651 (interactive)
1652 (save-excursion
1653 (let ((buffer-read-only nil)
8b93df01
DL		 1654 charset)
1655 (if (gnus-buffer-live-p gnus-original-article-buffer)
1656 (with-current-buffer gnus-original-article-buffer
1657 (let* ((ct (gnus-fetch-field "content-type"))
a1506d29 1658 (ctl (and ct
8b93df01
DL		 1659 (ignore-errors
1660 (mail-header-parse-content-type ct)))))
1661 (setq charset (and ctl
1662 (mail-content-type-get ctl 'charset)))
1663 (if (stringp charset)
1664 (setq charset (intern (downcase charset)))))))
a1506d29 1665 (unless charset
8b93df01 1666 (setq charset gnus-newsgroup-charset))
16409b0b
GM		 1667 (article-goto-body)
1668 (save-window-excursion
1669 (save-restriction
1670 (narrow-to-region (point) (point-max))
1671 (mm-setup-w3)
1672 (let ((w3-strict-width (window-width))
6833e8ba 1673 (url-gateway-unplugged t)
16409b0b
GM		 1674 (url-standalone-mode t))
1675 (condition-case var
1676 (w3-region (point-min) (point-max))
1677 (error))))))))
1678
1679(defun article-hide-list-identifiers ()
1680 "Remove list identifies from the Subject header.
1681The `gnus-list-identifiers' variable specifies what to do."
1682 (interactive)
1683 (save-excursion
1684 (save-restriction
1685 (let ((inhibit-point-motion-hooks t)
1686 buffer-read-only)
1687 (article-narrow-to-head)
1688 (let ((regexp (if (stringp gnus-list-identifiers) gnus-list-identifiers
1689 (mapconcat 'identity gnus-list-identifiers " *\\|"))))
1690 (when regexp
1691 (goto-char (point-min))
1692 (when (re-search-forward
a1506d29 1693 (concat "^Subject: +\\(\\(\\(Re: +\\)?\\(" regexp
16409b0b
GM		 1694 " *\\)\\)+\\(Re: +\\)?\\)")
1695 nil t)
1696 (let ((s (or (match-string 3) (match-string 5))))
1697 (delete-region (match-beginning 1) (match-end 1))
1698 (when s
1699 (goto-char (match-beginning 1))
1700 (insert s))))))))))
1701
1702(defun article-hide-pgp ()
1703 "Remove any PGP headers and signatures in the current article."
1704 (interactive)
1705 (save-excursion
1706 (save-restriction
eec82323
LMI		 1707 (let ((inhibit-point-motion-hooks t)
1708 buffer-read-only beg end)
16409b0b 1709 (article-goto-body)
eec82323 1710 ;; Hide the "header".
16409b0b
GM		 1711 (when (re-search-forward "^-----BEGIN PGP SIGNED MESSAGE-----\n" nil t)
1712 (push 'pgp gnus-article-wash-types)
1713 (delete-region (match-beginning 0) (match-end 0))
1714 ;; Remove armor headers (rfc2440 6.2)
1715 (delete-region (point) (or (re-search-forward "^[ \t]*\n" nil t)
1716 (point)))
a8151ef7
LMI		 1717 (setq beg (point))
1718 ;; Hide the actual signature.
1719 (and (search-forward "\n-----BEGIN PGP SIGNATURE-----\n" nil t)
1720 (setq end (1+ (match-beginning 0)))
6748645f 1721 (delete-region
a8151ef7
LMI		 1722 end
1723 (if (search-forward "\n-----END PGP SIGNATURE-----\n" nil t)
1724 (match-end 0)
1725 ;; Perhaps we shouldn't hide to the end of the buffer
1726 ;; if there is no end to the signature?
6748645f 1727 (point-max))))
a8151ef7
LMI		 1728 ;; Hide "- " PGP quotation markers.
1729 (when (and beg end)
1730 (narrow-to-region beg end)
1731 (goto-char (point-min))
1732 (while (re-search-forward "^- " nil t)
6748645f
LMI		 1733 (delete-region
1734 (match-beginning 0) (match-end 0)))
a8151ef7 1735 (widen))
6748645f 1736 (gnus-run-hooks 'gnus-article-hide-pgp-hook))))))
eec82323
LMI		 1737
1738(defun article-hide-pem (&optional arg)
1739 "Toggle hiding of any PEM headers and signatures in the current article.
1740If given a negative prefix, always show; if given a positive prefix,
1741always hide."
1742 (interactive (gnus-article-hidden-arg))
1743 (unless (gnus-article-check-hidden-text 'pem arg)
1744 (save-excursion
1745 (let (buffer-read-only end)
eec82323 1746 (goto-char (point-min))
16409b0b
GM		 1747 ;; Hide the horrendously ugly "header".
1748 (when (and (search-forward
1749 "\n-----BEGIN PRIVACY-ENHANCED MESSAGE-----\n"
1750 nil t)
1751 (setq end (1+ (match-beginning 0))))
1752 (push 'pem gnus-article-wash-types)
1753 (gnus-article-hide-text-type
1754 end
1755 (if (search-forward "\n\n" nil t)
1756 (match-end 0)
1757 (point-max))
1758 'pem)
1759 ;; Hide the trailer as well
1760 (when (search-forward "\n-----END PRIVACY-ENHANCED MESSAGE-----\n"
1761 nil t)
1762 (gnus-article-hide-text-type
1763 (match-beginning 0) (match-end 0) 'pem)))))))
1764
1765(defun article-strip-banner ()
1766 "Strip the banner specified by the `banner' group parameter."
1767 (interactive)
1768 (save-excursion
1769 (save-restriction
1770 (let ((inhibit-point-motion-hooks t)
e0bad764 1771 (banner (gnus-group-find-parameter gnus-newsgroup-name 'banner))
16409b0b
GM		 1772 (gnus-signature-limit nil)
1773 buffer-read-only beg end)
1774 (when banner
1775 (article-goto-body)
1776 (cond
1777 ((eq banner 'signature)
1778 (when (gnus-article-narrow-to-signature)
1779 (widen)
1780 (forward-line -1)
1781 (delete-region (point) (point-max))))
e0bad764
DL		 1782 ((symbolp banner)
1783 (if (setq banner (cdr (assq banner gnus-article-banner-alist)))
1784 (while (re-search-forward banner nil t)
1785 (delete-region (match-beginning 0) (match-end 0)))))
16409b0b
GM		 1786 ((stringp banner)
1787 (while (re-search-forward banner nil t)
1788 (delete-region (match-beginning 0) (match-end 0))))))))))
1789
1790(defun article-babel ()
1791 "Translate article using an online translation service."
1792 (interactive)
1793 (require 'babel)
1794 (save-excursion
1795 (set-buffer gnus-article-buffer)
1796 (when (article-goto-body)
1797 (let* ((buffer-read-only nil)
1798 (start (point))
1799 (end (point-max))
1800 (orig (buffer-substring start end))
1801 (trans (babel-as-string orig)))
1802 (save-restriction
1803 (narrow-to-region start end)
1804 (delete-region start end)
1805 (insert trans))))))
eec82323
LMI		 1806
1807(defun article-hide-signature (&optional arg)
1808 "Hide the signature in the current article.
1809If given a negative prefix, always show; if given a positive prefix,
1810always hide."
1811 (interactive (gnus-article-hidden-arg))
1812 (unless (gnus-article-check-hidden-text 'signature arg)
1813 (save-excursion
1814 (save-restriction
1815 (let ((buffer-read-only nil))
1816 (when (gnus-article-narrow-to-signature)
1817 (gnus-article-hide-text-type
1818 (point-min) (point-max) 'signature)))))))
1819
16409b0b
GM		 1820(defun article-strip-headers-in-body ()
1821 "Strip offensive headers from bodies."
1822 (interactive)
1823 (save-excursion
1824 (article-goto-body)
1825 (let ((case-fold-search t))
1826 (when (looking-at "x-no-archive:")
1827 (gnus-delete-line)))))
1828
eec82323
LMI		 1829(defun article-strip-leading-blank-lines ()
1830 "Remove all blank lines from the beginning of the article."
1831 (interactive)
1832 (save-excursion
1833 (let ((inhibit-point-motion-hooks t)
1834 buffer-read-only)
16409b0b 1835 (when (article-goto-body)
eec82323
LMI		 1836 (while (and (not (eobp))
1837 (looking-at "[ \t]*$"))
1838 (gnus-delete-line))))))
1839
16409b0b
GM		 1840(defun article-narrow-to-head ()
1841 "Narrow the buffer to the head of the message.
1842Point is left at the beginning of the narrowed-to region."
1843 (narrow-to-region
1844 (goto-char (point-min))
1845 (if (search-forward "\n\n" nil 1)
1846 (1- (point))
1847 (point-max)))
1848 (goto-char (point-min)))
1849
1850(defun article-goto-body ()
1851 "Place point at the start of the body."
1852 (goto-char (point-min))
1853 (cond
1854 ;; This variable is only bound when dealing with separate
1855 ;; MIME body parts.
1856 (article-goto-body-goes-to-point-min-p
1857 t)
1858 ((search-forward "\n\n" nil t)
1859 t)
1860 (t
1861 (goto-char (point-max))
1862 nil)))
1863
eec82323
LMI		 1864(defun article-strip-multiple-blank-lines ()
1865 "Replace consecutive blank lines with one empty line."
1866 (interactive)
1867 (save-excursion
1868 (let ((inhibit-point-motion-hooks t)
1869 buffer-read-only)
1870 ;; First make all blank lines empty.
16409b0b 1871 (article-goto-body)
eec82323 1872 (while (re-search-forward "^[ \t]+$" nil t)
16409b0b
GM		 1873 (unless (gnus-annotation-in-region-p
1874 (match-beginning 0) (match-end 0))
1875 (replace-match "" nil t)))
eec82323 1876 ;; Then replace multiple empty lines with a single empty line.
16409b0b 1877 (article-goto-body)
eec82323 1878 (while (re-search-forward "\n\n\n+" nil t)
16409b0b
GM		 1879 (unless (gnus-annotation-in-region-p
1880 (match-beginning 0) (match-end 0))
1881 (replace-match "\n\n" t t))))))
eec82323
LMI		 1882
1883(defun article-strip-leading-space ()
1884 "Remove all white space from the beginning of the lines in the article."
1885 (interactive)
1886 (save-excursion
1887 (let ((inhibit-point-motion-hooks t)
1888 buffer-read-only)
16409b0b 1889 (article-goto-body)
eec82323
LMI		 1890 (while (re-search-forward "^[ \t]+" nil t)
1891 (replace-match "" t t)))))
1892
16409b0b
GM		 1893(defun article-strip-trailing-space ()
1894 "Remove all white space from the end of the lines in the article."
1895 (interactive)
1896 (save-excursion
1897 (let ((inhibit-point-motion-hooks t)
1898 buffer-read-only)
1899 (article-goto-body)
1900 (while (re-search-forward "[ \t]+$" nil t)
1901 (replace-match "" t t)))))
1902
eec82323
LMI		 1903(defun article-strip-blank-lines ()
1904 "Strip leading, trailing and multiple blank lines."
1905 (interactive)
1906 (article-strip-leading-blank-lines)
1907 (article-remove-trailing-blank-lines)
1908 (article-strip-multiple-blank-lines))
1909
6748645f
LMI		 1910(defun article-strip-all-blank-lines ()
1911 "Strip all blank lines."
1912 (interactive)
1913 (save-excursion
1914 (let ((inhibit-point-motion-hooks t)
1915 buffer-read-only)
16409b0b 1916 (article-goto-body)
6748645f
LMI		 1917 (while (re-search-forward "^[ \t]*\n" nil t)
1918 (replace-match "" t t)))))
1919
eec82323
LMI		 1920(defun gnus-article-narrow-to-signature ()
1921 "Narrow to the signature; return t if a signature is found, else nil."
6748645f 1922 (let ((inhibit-point-motion-hooks t))
6748645f
LMI		 1923 (when (gnus-article-search-signature)
1924 (forward-line 1)
1925 ;; Check whether we have some limits to what we consider
1926 ;; to be a signature.
1927 (let ((limits (if (listp gnus-signature-limit) gnus-signature-limit
1928 (list gnus-signature-limit)))
1929 limit limited)
1930 (while (setq limit (pop limits))
1931 (if (or (and (integerp limit)
1932 (< (- (point-max) (point)) limit))
1933 (and (floatp limit)
1934 (< (count-lines (point) (point-max)) limit))
1935 (and (gnus-functionp limit)
1936 (funcall limit))
1937 (and (stringp limit)
1938 (not (re-search-forward limit nil t))))
1939 () ; This limit did not succeed.
1940 (setq limited t
1941 limits nil)))
1942 (unless limited
1943 (narrow-to-region (point) (point-max))
1944 t)))))
eec82323
LMI		 1945
1946(defun gnus-article-search-signature ()
1947 "Search the current buffer for the signature separator.
1948Put point at the beginning of the signature separator."
1949 (let ((cur (point)))
1950 (goto-char (point-max))
1951 (if (if (stringp gnus-signature-separator)
1952 (re-search-backward gnus-signature-separator nil t)
1953 (let ((seps gnus-signature-separator))
1954 (while (and seps
1955 (not (re-search-backward (car seps) nil t)))
1956 (pop seps))
1957 seps))
1958 t
1959 (goto-char cur)
1960 nil)))
1961
eec82323
LMI		 1962(defun gnus-article-hidden-arg ()
1963 "Return the current prefix arg as a number, or 0 if no prefix."
1964 (list (if current-prefix-arg
1965 (prefix-numeric-value current-prefix-arg)
1966 0)))
1967
1968(defun gnus-article-check-hidden-text (type arg)
1969 "Return nil if hiding is necessary.
f0529b5b 1970Arg can be nil or a number. nil and positive means hide, negative
eec82323
LMI		 1971means show, 0 means toggle."
1972 (save-excursion
1973 (save-restriction
eec82323
LMI		 1974 (let ((hide (gnus-article-hidden-text-p type)))
1975 (cond
1976 ((or (null arg)
1977 (> arg 0))
1978 nil)
1979 ((< arg 0)
4481aa98
SZ		 1980 (gnus-article-show-hidden-text type)
1981 t)
eec82323
LMI		 1982 (t
1983 (if (eq hide 'hidden)
4481aa98
SZ		 1984 (progn
1985 (gnus-article-show-hidden-text type)
1986 t)
eec82323
LMI		 1987 nil)))))))
1988
1989(defun gnus-article-hidden-text-p (type)
1990 "Say whether the current buffer contains hidden text of type TYPE."
6748645f 1991 (let ((pos (text-property-any (point-min) (point-max) 'article-type type)))
eec82323 1992 (while (and pos
16409b0b
GM		 1993 (not (get-text-property pos 'invisible))
1994 (not (get-text-property pos 'dummy-invisible)))
eec82323
LMI		 1995 (setq pos
1996 (text-property-any (1+ pos) (point-max) 'article-type type)))
1997 (if pos
1998 'hidden
16409b0b 1999 nil)))
eec82323 2000
520aa572 2001(defun gnus-article-show-hidden-text (type &optional dummy)
eec82323 2002 "Show all hidden text of type TYPE.
520aa572
SZ		 2003Originally it is hide instead of DUMMY."
2004 (let ((buffer-read-only nil)
2005 (inhibit-point-motion-hooks t))
a1506d29 2006 (gnus-remove-text-properties-when
520aa572 2007 'article-type type
a1506d29 2008 (point-min) (point-max)
520aa572
SZ		 2009 (cons 'article-type (cons type
2010 gnus-hidden-properties)))))
eec82323
LMI		 2011
2012(defconst article-time-units
2013 `((year . ,(* 365.25 24 60 60))
2014 (week . ,(* 7 24 60 60))
2015 (day . ,(* 24 60 60))
2016 (hour . ,(* 60 60))
2017 (minute . 60)
2018 (second . 1))
2019 "Mapping from time units to seconds.")
2020
2021(defun article-date-ut (&optional type highlight header)
2022 "Convert DATE date to universal time in the current article.
2023If TYPE is `local', convert to local time; if it is `lapsed', output
16409b0b
GM		 2024how much time has lapsed since DATE. For `lapsed', the value of
2025`gnus-article-date-lapsed-new-header' says whether the \"X-Sent:\" header
2026should replace the \"Date:\" one, or should be added below it."
eec82323
LMI		 2027 (interactive (list 'ut t))
2028 (let* ((header (or header
eec82323
LMI		 2029 (message-fetch-field "date")
2030 ""))
16409b0b
GM		 2031 (tdate-regexp "^Date:[ \t]\\|^X-Sent:[ \t]")
2032 (date-regexp
2033 (cond
2034 ((not gnus-article-date-lapsed-new-header)
2035 tdate-regexp)
2036 ((eq type 'lapsed)
2037 "^X-Sent:[ \t]")
2038 (t
2039 "^Date:[ \t]")))
eec82323
LMI		 2040 (date (if (vectorp header) (mail-header-date header)
2041 header))
eec82323 2042 (inhibit-point-motion-hooks t)
16409b0b
GM		 2043 pos
2044 bface eface)
2045 (save-excursion
2046 (save-restriction
2047 (article-narrow-to-head)
2048 (when (re-search-forward tdate-regexp nil t)
2049 (setq bface (get-text-property (gnus-point-at-bol) 'face)
2050 date (or (get-text-property (gnus-point-at-bol)
2051 'original-date)
2052 date)
2053 eface (get-text-property (1- (gnus-point-at-eol)) 'face))
2054 (forward-line 1))
2055 (when (and date (not (string= date "")))
2056 (goto-char (point-min))
eec82323 2057 (let ((buffer-read-only nil))
16409b0b
GM		 2058 ;; Delete any old Date headers.
2059 (while (re-search-forward date-regexp nil t)
2060 (if pos
6748645f 2061 (delete-region (progn (beginning-of-line) (point))
16409b0b
GM		 2062 (progn (forward-line 1) (point)))
2063 (delete-region (progn (beginning-of-line) (point))
2064 (progn (end-of-line) (point)))
2065 (setq pos (point))))
2066 (when (and (not pos) (re-search-forward tdate-regexp nil t))
2067 (forward-line 1))
2068 (if pos (goto-char pos))
2069 (insert (article-make-date-line date (or type 'ut)))
2070 (when (not pos)
2071 (insert "\n")
2072 (forward-line -1))
eec82323 2073 ;; Do highlighting.
6748645f 2074 (beginning-of-line)
eec82323 2075 (when (looking-at "\\([^:]+\\): *\\(.*\\)$")
16409b0b
GM		 2076 (put-text-property (match-beginning 1) (1+ (match-end 1))
2077 'original-date date)
6748645f 2078 (put-text-property (match-beginning 1) (1+ (match-end 1))
eec82323
LMI		 2079 'face bface)
2080 (put-text-property (match-beginning 2) (match-end 2)
16409b0b 2081 'face eface))))))))
eec82323
LMI		 2082
2083(defun article-make-date-line (date type)
2084 "Return a DATE line of TYPE."
16409b0b
GM		 2085 (let ((time (condition-case ()
2086 (date-to-time date)
2087 (error '(0 0)))))
2088 (cond
2089 ;; Convert to the local timezone. We have to slap a
2090 ;; `condition-case' round the calls to the timezone
2091 ;; functions since they aren't particularly resistant to
2092 ;; buggy dates.
2093 ((eq type 'local)
2094 (let ((tz (car (current-time-zone time))))
2095 (format "Date: %s %s%02d%02d" (current-time-string time)
a1506d29 2096 (if (> tz 0) "+" "-") (/ (abs tz) 3600)
16409b0b
GM		 2097 (/ (% (abs tz) 3600) 60))))
2098 ;; Convert to Universal Time.
2099 ((eq type 'ut)
2100 (concat "Date: "
2101 (current-time-string
2102 (let* ((e (parse-time-string date))
2103 (tm (apply 'encode-time e))
2104 (ms (car tm))
2105 (ls (- (cadr tm) (car (current-time-zone time)))))
2106 (cond ((< ls 0) (list (1- ms) (+ ls 65536)))
2107 ((> ls 65535) (list (1+ ms) (- ls 65536)))
2108 (t (list ms ls)))))
2109 " UT"))
2110 ;; Get the original date from the article.
2111 ((eq type 'original)
2112 (concat "Date: " (if (string-match "\n+$" date)
2113 (substring date 0 (match-beginning 0))
2114 date)))
2115 ;; Let the user define the format.
2116 ((eq type 'user)
2117 (if (gnus-functionp gnus-article-time-format)
2118 (funcall gnus-article-time-format time)
eec82323 2119 (concat
16409b0b
GM		 2120 "Date: "
2121 (format-time-string gnus-article-time-format time))))
2122 ;; ISO 8601.
2123 ((eq type 'iso8601)
2124 (let ((tz (car (current-time-zone time))))
2125 (concat
2126 "Date: "
2127 (format-time-string "%Y%m%dT%H%M%S" time)
2128 (format "%s%02d%02d"
a1506d29 2129 (if (> tz 0) "+" "-") (/ (abs tz) 3600)
16409b0b
GM		 2130 (/ (% (abs tz) 3600) 60)))))
2131 ;; Do an X-Sent lapsed format.
2132 ((eq type 'lapsed)
2133 ;; If the date is seriously mangled, the timezone functions are
2134 ;; liable to bug out, so we ignore all errors.
2135 (let* ((now (current-time))
2136 (real-time (subtract-time now time))
2137 (real-sec (and real-time
2138 (+ (* (float (car real-time)) 65536)
2139 (cadr real-time))))
2140 (sec (and real-time (abs real-sec)))
2141 num prev)
2142 (cond
2143 ((null real-time)
2144 "X-Sent: Unknown")
2145 ((zerop sec)
2146 "X-Sent: Now")
2147 (t
2148 (concat
2149 "X-Sent: "
2150 ;; This is a bit convoluted, but basically we go
2151 ;; through the time units for years, weeks, etc,
2152 ;; and divide things to see whether that results
2153 ;; in positive answers.
2154 (mapconcat
2155 (lambda (unit)
2156 (if (zerop (setq num (ffloor (/ sec (cdr unit)))))
2157 ;; The (remaining) seconds are too few to
2158 ;; be divided into this time unit.
2159 ""
2160 ;; It's big enough, so we output it.
2161 (setq sec (- sec (* num (cdr unit))))
2162 (prog1
2163 (concat (if prev ", " "") (int-to-string
2164 (floor num))
2165 " " (symbol-name (car unit))
2166 (if (> num 1) "s" ""))
2167 (setq prev t))))
2168 article-time-units "")
2169 ;; If dates are odd, then it might appear like the
2170 ;; article was sent in the future.
2171 (if (> real-sec 0)
2172 " ago"
2173 " in the future"))))))
2174 (t
2175 (error "Unknown conversion type: %s" type)))))
eec82323
LMI		 2176
2177(defun article-date-local (&optional highlight)
2178 "Convert the current article date to the local timezone."
2179 (interactive (list t))
2180 (article-date-ut 'local highlight))
2181
2182(defun article-date-original (&optional highlight)
2183 "Convert the current article date to what it was originally.
2184This is only useful if you have used some other date conversion
2185function and want to see what the date was before converting."
2186 (interactive (list t))
2187 (article-date-ut 'original highlight))
2188
2189(defun article-date-lapsed (&optional highlight)
2190 "Convert the current article date to time lapsed since it was sent."
2191 (interactive (list t))
2192 (article-date-ut 'lapsed highlight))
2193
6748645f
LMI		 2194(defun article-update-date-lapsed ()
2195 "Function to be run from a timer to update the lapsed time line."
2196 (let (deactivate-mark)
2197 (save-excursion
2198 (ignore-errors
16409b0b
GM		 2199 (walk-windows
2200 (lambda (w)
2201 (set-buffer (window-buffer w))
2202 (when (eq major-mode 'gnus-article-mode)
2203 (goto-char (point-min))
2204 (when (re-search-forward "^X-Sent:" nil t)
2205 (article-date-lapsed t))))
2206 nil 'visible)))))
6748645f
LMI		 2207
2208(defun gnus-start-date-timer (&optional n)
2209 "Start a timer to update the X-Sent header in the article buffers.
2210The numerical prefix says how frequently (in seconds) the function
2211is to run."
2212 (interactive "p")
2213 (unless n
2214 (setq n 1))
2215 (gnus-stop-date-timer)
2216 (setq article-lapsed-timer
2217 (nnheader-run-at-time 1 n 'article-update-date-lapsed)))
2218
2219(defun gnus-stop-date-timer ()
2220 "Stop the X-Sent timer."
2221 (interactive)
2222 (when article-lapsed-timer
2223 (nnheader-cancel-timer article-lapsed-timer)
2224 (setq article-lapsed-timer nil)))
2225
eec82323
LMI		 2226(defun article-date-user (&optional highlight)
2227 "Convert the current article date to the user-defined format.
2228This format is defined by the `gnus-article-time-format' variable."
2229 (interactive (list t))
2230 (article-date-ut 'user highlight))
2231
6748645f
LMI		 2232(defun article-date-iso8601 (&optional highlight)
2233 "Convert the current article date to ISO8601."
2234 (interactive (list t))
2235 (article-date-ut 'iso8601 highlight))
2236
eec82323
LMI		 2237(defun article-show-all ()
2238 "Show all hidden text in the article buffer."
2239 (interactive)
2240 (save-excursion
2241 (let ((buffer-read-only nil))
2242 (gnus-article-unhide-text (point-min) (point-max)))))
2243
2244(defun article-emphasize (&optional arg)
2245 "Emphasize text according to `gnus-emphasis-alist'."
2246 (interactive (gnus-article-hidden-arg))
2247 (unless (gnus-article-check-hidden-text 'emphasis arg)
2248 (save-excursion
a1506d29 2249 (let ((alist (or
16409b0b 2250 (condition-case nil
a1506d29
JB		 2251 (with-current-buffer gnus-summary-buffer
2252 gnus-article-emphasis-alist)
16409b0b
GM		 2253 (error))
2254 gnus-emphasis-alist))
eec82323
LMI		 2255 (buffer-read-only nil)
2256 (props (append '(article-type emphasis)
2257 gnus-hidden-properties))
2258 regexp elem beg invisible visible face)
16409b0b 2259 (article-goto-body)
eec82323
LMI		 2260 (setq beg (point))
2261 (while (setq elem (pop alist))
2262 (goto-char beg)
2263 (setq regexp (car elem)
2264 invisible (nth 1 elem)
2265 visible (nth 2 elem)
2266 face (nth 3 elem))
2267 (while (re-search-forward regexp nil t)
2268 (when (and (match-beginning visible) (match-beginning invisible))
16409b0b 2269 (push 'emphasis gnus-article-wash-types)
eec82323
LMI		 2270 (gnus-article-hide-text
2271 (match-beginning invisible) (match-end invisible) props)
2272 (gnus-article-unhide-text-type
2273 (match-beginning visible) (match-end visible) 'emphasis)
2274 (gnus-put-text-property-excluding-newlines
2275 (match-beginning visible) (match-end visible) 'face face)
2276 (goto-char (match-end invisible)))))))))
2277
16409b0b
GM		 2278(defun gnus-article-setup-highlight-words (&optional highlight-words)
2279 "Setup newsgroup emphasis alist."
2280 (unless gnus-article-emphasis-alist
2281 (let ((name (and gnus-newsgroup-name
2282 (gnus-group-real-name gnus-newsgroup-name))))
2283 (make-local-variable 'gnus-article-emphasis-alist)
a1506d29
JB		 2284 (setq gnus-article-emphasis-alist
2285 (nconc
16409b0b
GM		 2286 (let ((alist gnus-group-highlight-words-alist) elem highlight)
2287 (while (setq elem (pop alist))
2288 (when (and name (string-match (car elem) name))
2289 (setq alist nil
2290 highlight (copy-sequence (cdr elem)))))
2291 highlight)
2292 (copy-sequence highlight-words)
2293 (if gnus-newsgroup-name
a1506d29 2294 (copy-sequence (gnus-group-find-parameter
16409b0b
GM		 2295 gnus-newsgroup-name 'highlight-words t)))
2296 gnus-emphasis-alist)))))
2297
1653df0f
SZ		 2298(eval-when-compile
2299 (defvar gnus-summary-article-menu)
2300 (defvar gnus-summary-post-menu))
eec82323
LMI		 2301
2302;;; Saving functions.
2303
2304(defun gnus-article-save (save-buffer file &optional num)
2305 "Save the currently selected article."
2306 (unless gnus-save-all-headers
2307 ;; Remove headers according to `gnus-saved-headers'.
2308 (let ((gnus-visible-headers
2309 (or gnus-saved-headers gnus-visible-headers))
2310 (gnus-article-buffer save-buffer))
6748645f
LMI		 2311 (save-excursion
2312 (set-buffer save-buffer)
2313 (article-hide-headers 1 t))))
eec82323
LMI		 2314 (save-window-excursion
2315 (if (not gnus-default-article-saver)
a8151ef7 2316 (error "No default saver is defined")
eec82323 2317 ;; !!! Magic! The saving functions all save
16409b0b 2318 ;; `gnus-save-article-buffer' (or so they think), but we
eec82323
LMI		 2319 ;; bind that variable to our save-buffer.
2320 (set-buffer gnus-article-buffer)
2321 (let* ((gnus-save-article-buffer save-buffer)
2322 (filename
2323 (cond
2324 ((not gnus-prompt-before-saving) 'default)
2325 ((eq gnus-prompt-before-saving 'always) nil)
2326 (t file)))
2327 (gnus-number-of-articles-to-be-saved
2328 (when (eq gnus-prompt-before-saving t)
2329 num))) ; Magic
6748645f 2330 (set-buffer gnus-article-current-summary)
eec82323
LMI		 2331 (funcall gnus-default-article-saver filename)))))
2332
2333(defun gnus-read-save-file-name (prompt &optional filename
2334 function group headers variable)
2335 (let ((default-name
2336 (funcall function group headers (symbol-value variable)))
2337 result)
4325195c 2338 (setq result
a1506d29 2339 (expand-file-name
4325195c
DL		 2340 (cond
2341 ((eq filename 'default)
2342 default-name)
2343 ((eq filename t)
2344 default-name)
2345 (filename filename)
2346 (t
2347 (let* ((split-name (gnus-get-split-value gnus-split-methods))
2348 (prompt
2349 (format prompt
2350 (if (and gnus-number-of-articles-to-be-saved
2351 (> gnus-number-of-articles-to-be-saved 1))
2352 (format "these %d articles"
2353 gnus-number-of-articles-to-be-saved)
2354 "this article")))
2355 (file
2356 ;; Let the split methods have their say.
2357 (cond
2358 ;; No split name was found.
2359 ((null split-name)
2360 (read-file-name
2361 (concat prompt " (default "
2362 (file-name-nondirectory default-name) ") ")
2363 (file-name-directory default-name)
2364 default-name))
2365 ;; A single group name is returned.
2366 ((stringp split-name)
2367 (setq default-name
2368 (funcall function split-name headers
2369 (symbol-value variable)))
2370 (read-file-name
2371 (concat prompt " (default "
2372 (file-name-nondirectory default-name) ") ")
2373 (file-name-directory default-name)
2374 default-name))
2375 ;; A single split name was found
2376 ((= 1 (length split-name))
2377 (let* ((name (expand-file-name
2378 (car split-name) gnus-article-save-directory))
2379 (dir (cond ((file-directory-p name)
2380 (file-name-as-directory name))
2381 ((file-exists-p name) name)
2382 (t gnus-article-save-directory))))
2383 (read-file-name
2384 (concat prompt " (default " name ") ")
2385 dir name)))
2386 ;; A list of splits was found.
2387 (t
2388 (setq split-name (nreverse split-name))
2389 (let (result)
2390 (let ((file-name-history
2391 (nconc split-name file-name-history)))
2392 (setq result
2393 (expand-file-name
2394 (read-file-name
2395 (concat prompt " (`M-p' for defaults) ")
2396 gnus-article-save-directory
2397 (car split-name))
2398 gnus-article-save-directory)))
2399 (car (push result file-name-history)))))))
2400 ;; Create the directory.
2401 (gnus-make-directory (file-name-directory file))
2402 ;; If we have read a directory, we append the default file name.
2403 (when (file-directory-p file)
2404 (setq file (expand-file-name (file-name-nondirectory default-name)
2405 (file-name-as-directory file))))
2406 ;; Possibly translate some characters.
2407 (nnheader-translate-file-chars file))))))
eec82323
LMI		 2408 (gnus-make-directory (file-name-directory result))
2409 (set variable result)))
2410
2411(defun gnus-article-archive-name (group)
2412 "Return the first instance of an \"Archive-name\" in the current buffer."
2413 (let ((case-fold-search t))
2414 (when (re-search-forward "archive-name: *\\([^ \n\t]+\\)[ \t]*$" nil t)
2415 (nnheader-concat gnus-article-save-directory
2416 (match-string 1)))))
2417
2418(defun gnus-article-nndoc-name (group)
2419 "If GROUP is an nndoc group, return the name of the parent group."
2420 (when (eq (car (gnus-find-method-for-group group)) 'nndoc)
2421 (gnus-group-get-parameter group 'save-article-group)))
2422
2423(defun gnus-summary-save-in-rmail (&optional filename)
2424 "Append this article to Rmail file.
2425Optional argument FILENAME specifies file name.
2426Directory to save to is default to `gnus-article-save-directory'."
eec82323
LMI		 2427 (setq filename (gnus-read-save-file-name
2428 "Save %s in rmail file:" filename
2429 gnus-rmail-save-name gnus-newsgroup-name
2430 gnus-current-headers 'gnus-newsgroup-last-rmail))
2431 (gnus-eval-in-buffer-window gnus-save-article-buffer
2432 (save-excursion
2433 (save-restriction
2434 (widen)
6748645f
LMI		 2435 (gnus-output-to-rmail filename))))
2436 filename)
eec82323
LMI		 2437
2438(defun gnus-summary-save-in-mail (&optional filename)
2439 "Append this article to Unix mail file.
2440Optional argument FILENAME specifies file name.
2441Directory to save to is default to `gnus-article-save-directory'."
eec82323
LMI		 2442 (setq filename (gnus-read-save-file-name
2443 "Save %s in Unix mail file:" filename
2444 gnus-mail-save-name gnus-newsgroup-name
2445 gnus-current-headers 'gnus-newsgroup-last-mail))
2446 (gnus-eval-in-buffer-window gnus-save-article-buffer
2447 (save-excursion
2448 (save-restriction
2449 (widen)
2450 (if (and (file-readable-p filename)
2451 (mail-file-babyl-p filename))
16409b0b 2452 (rmail-output-to-rmail-file filename t)
6748645f
LMI		 2453 (gnus-output-to-mail filename)))))
2454 filename)
eec82323
LMI		 2455
2456(defun gnus-summary-save-in-file (&optional filename overwrite)
2457 "Append this article to file.
2458Optional argument FILENAME specifies file name.
2459Directory to save to is default to `gnus-article-save-directory'."
eec82323
LMI		 2460 (setq filename (gnus-read-save-file-name
2461 "Save %s in file:" filename
2462 gnus-file-save-name gnus-newsgroup-name
2463 gnus-current-headers 'gnus-newsgroup-last-file))
2464 (gnus-eval-in-buffer-window gnus-save-article-buffer
2465 (save-excursion
2466 (save-restriction
2467 (widen)
2468 (when (and overwrite
2469 (file-exists-p filename))
2470 (delete-file filename))
6748645f
LMI		 2471 (gnus-output-to-file filename))))
2472 filename)
eec82323
LMI		 2473
2474(defun gnus-summary-write-to-file (&optional filename)
2475 "Write this article to a file.
2476Optional argument FILENAME specifies file name.
2477The directory to save in defaults to `gnus-article-save-directory'."
eec82323
LMI		 2478 (gnus-summary-save-in-file nil t))
2479
2480(defun gnus-summary-save-body-in-file (&optional filename)
2481 "Append this article body to a file.
2482Optional argument FILENAME specifies file name.
2483The directory to save in defaults to `gnus-article-save-directory'."
eec82323
LMI		 2484 (setq filename (gnus-read-save-file-name
2485 "Save %s body in file:" filename
2486 gnus-file-save-name gnus-newsgroup-name
2487 gnus-current-headers 'gnus-newsgroup-last-file))
2488 (gnus-eval-in-buffer-window gnus-save-article-buffer
2489 (save-excursion
2490 (save-restriction
2491 (widen)
16409b0b 2492 (when (article-goto-body)
eec82323 2493 (narrow-to-region (point) (point-max)))
6748645f
LMI		 2494 (gnus-output-to-file filename))))
2495 filename)
eec82323
LMI		 2496
2497(defun gnus-summary-save-in-pipe (&optional command)
2498 "Pipe this article to subprocess."
eec82323 2499 (setq command
16409b0b
GM		 2500 (cond ((and (eq command 'default)
2501 gnus-last-shell-command)
eec82323 2502 gnus-last-shell-command)
676a7cc9
SZ		 2503 ((stringp command)
2504 command)
eec82323
LMI		 2505 (t (read-string
2506 (format
2507 "Shell command on %s: "
2508 (if (and gnus-number-of-articles-to-be-saved
2509 (> gnus-number-of-articles-to-be-saved 1))
2510 (format "these %d articles"
2511 gnus-number-of-articles-to-be-saved)
2512 "this article"))
2513 gnus-last-shell-command))))
2514 (when (string-equal command "")
676a7cc9
SZ		 2515 (if gnus-last-shell-command
2516 (setq command gnus-last-shell-command)
715a2ca2 2517 (error "A command is required")))
eec82323
LMI		 2518 (gnus-eval-in-buffer-window gnus-article-buffer
2519 (save-restriction
2520 (widen)
2521 (shell-command-on-region (point-min) (point-max) command nil)))
2522 (setq gnus-last-shell-command command))
2523
2524;;; Article file names when saving.
2525
2526(defun gnus-capitalize-newsgroup (newsgroup)
2527 "Capitalize NEWSGROUP name."
2528 (when (not (zerop (length newsgroup)))
2529 (concat (char-to-string (upcase (aref newsgroup 0)))
2530 (substring newsgroup 1))))
2531
2532(defun gnus-Numeric-save-name (newsgroup headers &optional last-file)
2533 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2534If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
2535Otherwise, it is like ~/News/news/group/num."
2536 (let ((default
2537 (expand-file-name
2538 (concat (if (gnus-use-long-file-name 'not-save)
2539 (gnus-capitalize-newsgroup newsgroup)
2540 (gnus-newsgroup-directory-form newsgroup))
2541 "/" (int-to-string (mail-header-number headers)))
2542 gnus-article-save-directory)))
2543 (if (and last-file
2544 (string-equal (file-name-directory default)
2545 (file-name-directory last-file))
2546 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
2547 default
2548 (or last-file default))))
2549
2550(defun gnus-numeric-save-name (newsgroup headers &optional last-file)
2551 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2552If variable `gnus-use-long-file-name' is non-nil, it is
2553~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
2554 (let ((default
2555 (expand-file-name
2556 (concat (if (gnus-use-long-file-name 'not-save)
2557 newsgroup
2558 (gnus-newsgroup-directory-form newsgroup))
2559 "/" (int-to-string (mail-header-number headers)))
2560 gnus-article-save-directory)))
2561 (if (and last-file
2562 (string-equal (file-name-directory default)
2563 (file-name-directory last-file))
2564 (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
2565 default
2566 (or last-file default))))
2567
eec82323
LMI		 2568(defun gnus-plain-save-name (newsgroup headers &optional last-file)
2569 "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
2570If variable `gnus-use-long-file-name' is non-nil, it is
2571~/News/news.group. Otherwise, it is like ~/News/news/group/news."
2572 (or last-file
2573 (expand-file-name
2574 (if (gnus-use-long-file-name 'not-save)
2575 newsgroup
16409b0b 2576 (expand-file-name "news" (gnus-newsgroup-directory-form newsgroup)))
eec82323
LMI		 2577 gnus-article-save-directory)))
2578
2579(eval-and-compile
2580 (mapcar
2581 (lambda (func)
2582 (let (afunc gfunc)
2583 (if (consp func)
2584 (setq afunc (car func)
2585 gfunc (cdr func))
2586 (setq afunc func
2587 gfunc (intern (format "gnus-%s" func))))
16409b0b
GM		 2588 (defalias gfunc
2589 (if (fboundp afunc)
2590 `(lambda (&optional interactive &rest args)
2591 ,(documentation afunc t)
2592 (interactive (list t))
2593 (save-excursion
2594 (set-buffer gnus-article-buffer)
2595 (if interactive
2596 (call-interactively ',afunc)
2597 (apply ',afunc args))))))))
eec82323
LMI		 2598 '(article-hide-headers
2599 article-hide-boring-headers
2600 article-treat-overstrike
16409b0b
GM		 2601 article-fill-long-lines
2602 article-capitalize-sentences
eec82323
LMI		 2603 article-remove-cr
2604 article-display-x-face
2605 article-de-quoted-unreadable
16409b0b
GM		 2606 article-de-base64-unreadable
2607 article-decode-HZ
2608 article-wash-html
2609 article-hide-list-identifiers
eec82323 2610 article-hide-pgp
16409b0b
GM		 2611 article-strip-banner
2612 article-babel
eec82323
LMI		 2613 article-hide-pem
2614 article-hide-signature
16409b0b 2615 article-strip-headers-in-body
eec82323
LMI		 2616 article-remove-trailing-blank-lines
2617 article-strip-leading-blank-lines
2618 article-strip-multiple-blank-lines
2619 article-strip-leading-space
16409b0b 2620 article-strip-trailing-space
eec82323 2621 article-strip-blank-lines
6748645f 2622 article-strip-all-blank-lines
eec82323 2623 article-date-local
6748645f 2624 article-date-iso8601
eec82323
LMI		 2625 article-date-original
2626 article-date-ut
16409b0b
GM		 2627 article-decode-mime-words
2628 article-decode-charset
2629 article-decode-encoded-words
eec82323
LMI		 2630 article-date-user
2631 article-date-lapsed
2632 article-emphasize
6748645f 2633 article-treat-dumbquotes
16409b0b 2634 article-normalize-headers
eec82323
LMI		 2635 (article-show-all . gnus-article-show-all-headers))))
2636\f
2637;;;
2638;;; Gnus article mode
2639;;;
2640
2641(put 'gnus-article-mode 'mode-class 'special)
2642
16409b0b
GM		 2643(set-keymap-parent gnus-article-mode-map widget-keymap)
2644
a8151ef7
LMI		 2645(gnus-define-keys gnus-article-mode-map
2646 " " gnus-article-goto-next-page
2647 "\177" gnus-article-goto-prev-page
2648 [delete] gnus-article-goto-prev-page
16409b0b 2649 [backspace] gnus-article-goto-prev-page
a8151ef7
LMI		 2650 "\C-c^" gnus-article-refer-article
2651 "h" gnus-article-show-summary
2652 "s" gnus-article-show-summary
2653 "\C-c\C-m" gnus-article-mail
2654 "?" gnus-article-describe-briefly
16409b0b 2655 "e" gnus-summary-edit-article
a8151ef7
LMI		 2656 "<" beginning-of-buffer
2657 ">" end-of-buffer
2658 "\C-c\C-i" gnus-info-find-node
2659 "\C-c\C-b" gnus-bug
520aa572
SZ		 2660 "\C-hk" gnus-article-describe-key
2661 "\C-hc" gnus-article-describe-key-briefly
a8151ef7
LMI		 2662
2663 "\C-d" gnus-article-read-summary-keys
2664 "\M-*" gnus-article-read-summary-keys
2665 "\M-#" gnus-article-read-summary-keys
2666 "\M-^" gnus-article-read-summary-keys
2667 "\M-g" gnus-article-read-summary-keys)
2668
2669(substitute-key-definition
2670 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
eec82323 2671
1653df0f
SZ		 2672(defvar gnus-article-post-menu nil)
2673
eec82323
LMI		 2674(defun gnus-article-make-menu-bar ()
2675 (gnus-turn-off-edit-menu 'article)
2676 (unless (boundp 'gnus-article-article-menu)
2677 (easy-menu-define
2678 gnus-article-article-menu gnus-article-mode-map ""
2679 '("Article"
2680 ["Scroll forwards" gnus-article-goto-next-page t]
2681 ["Scroll backwards" gnus-article-goto-prev-page t]
2682 ["Show summary" gnus-article-show-summary t]
2683 ["Fetch Message-ID at point" gnus-article-refer-article t]
6748645f
LMI		 2684 ["Mail to address at point" gnus-article-mail t]
2685 ["Send a bug report" gnus-bug t]))
eec82323
LMI		 2686
2687 (easy-menu-define
2688 gnus-article-treatment-menu gnus-article-mode-map ""
bb367cba 2689 ;; Fixme: this should use :active (and maybe :visible).
eec82323
LMI		 2690 '("Treatment"
2691 ["Hide headers" gnus-article-hide-headers t]
2692 ["Hide signature" gnus-article-hide-signature t]
2693 ["Hide citation" gnus-article-hide-citation t]
2694 ["Treat overstrike" gnus-article-treat-overstrike t]
2695 ["Remove carriage return" gnus-article-remove-cr t]
16409b0b
GM		 2696 ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]
2697 ["Remove base64" gnus-article-de-base64-unreadable t]
2698 ["Treat html" gnus-article-wash-html t]
2699 ["Decode HZ" gnus-article-decode-HZ t]))
eec82323 2700
6748645f 2701 ;; Note "Commands" menu is defined in gnus-sum.el for consistency
eec82323
LMI		 2702
2703 (when (boundp 'gnus-summary-post-menu)
a1506d29 2704 (cond
1653df0f
SZ		 2705 ((not (keymapp gnus-summary-post-menu))
2706 (setq gnus-article-post-menu gnus-summary-post-menu))
2707 ((not gnus-article-post-menu)
2708 ;; Don't share post menu.
2709 (setq gnus-article-post-menu
2710 (copy-keymap gnus-summary-post-menu))))
eec82323 2711 (define-key gnus-article-mode-map [menu-bar post]
1653df0f 2712 (cons "Post" gnus-article-post-menu)))
eec82323 2713
6748645f 2714 (gnus-run-hooks 'gnus-article-menu-hook)))
eec82323 2715
bb367cba
DL		 2716;; Fixme: do something for the Emacs tool bar in Article mode a la
2717;; Summary.
2718
eec82323
LMI		 2719(defun gnus-article-mode ()
2720 "Major mode for displaying an article.
2721
2722All normal editing commands are switched off.
2723
2724The following commands are available in addition to all summary mode
2725commands:
2726\\<gnus-article-mode-map>
2727\\[gnus-article-next-page]\t Scroll the article one page forwards
2728\\[gnus-article-prev-page]\t Scroll the article one page backwards
2729\\[gnus-article-refer-article]\t Go to the article referred to by an article id near point
2730\\[gnus-article-show-summary]\t Display the summary buffer
2731\\[gnus-article-mail]\t Send a reply to the address near point
2732\\[gnus-article-describe-briefly]\t Describe the current mode briefly
2733\\[gnus-info-find-node]\t Go to the Gnus info node"
2734 (interactive)
eec82323
LMI		 2735 (gnus-simplify-mode-line)
2736 (setq mode-name "Article")
2737 (setq major-mode 'gnus-article-mode)
2738 (make-local-variable 'minor-mode-alist)
eec82323 2739 (use-local-map gnus-article-mode-map)
1653df0f
SZ		 2740 (when (gnus-visual-p 'article-menu 'menu)
2741 (gnus-article-make-menu-bar))
eec82323
LMI		 2742 (gnus-update-format-specifications nil 'article-mode)
2743 (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
6748645f
LMI		 2744 (make-local-variable 'gnus-page-broken)
2745 (make-local-variable 'gnus-button-marker-list)
2746 (make-local-variable 'gnus-article-current-summary)
16409b0b
GM		 2747 (make-local-variable 'gnus-article-mime-handles)
2748 (make-local-variable 'gnus-article-decoded-p)
2749 (make-local-variable 'gnus-article-mime-handle-alist)
2750 (make-local-variable 'gnus-article-wash-types)
eec82323 2751 (gnus-set-default-directory)
16409b0b 2752 (buffer-disable-undo)
eec82323
LMI		 2753 (setq buffer-read-only t)
2754 (set-syntax-table gnus-article-mode-syntax-table)
16409b0b 2755 (mm-enable-multibyte)
6748645f 2756 (gnus-run-hooks 'gnus-article-mode-hook))
eec82323
LMI		 2757
2758(defun gnus-article-setup-buffer ()
2759 "Initialize the article buffer."
2760 (let* ((name (if gnus-single-article-buffer "*Article*"
2761 (concat "*Article " gnus-newsgroup-name "*")))
2762 (original
2763 (progn (string-match "\\*Article" name)
2764 (concat " *Original Article"
2765 (substring name (match-end 0))))))
2766 (setq gnus-article-buffer name)
2767 (setq gnus-original-article-buffer original)
16409b0b 2768 (setq gnus-article-mime-handle-alist nil)
eec82323
LMI		 2769 ;; This might be a variable local to the summary buffer.
2770 (unless gnus-single-article-buffer
2771 (save-excursion
2772 (set-buffer gnus-summary-buffer)
2773 (setq gnus-article-buffer name)
2774 (setq gnus-original-article-buffer original)
2775 (gnus-set-global-variables)))
16409b0b 2776 (gnus-article-setup-highlight-words)
eec82323
LMI		 2777 ;; Init original article buffer.
2778 (save-excursion
6748645f 2779 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
16409b0b 2780 (mm-enable-multibyte)
eec82323 2781 (setq major-mode 'gnus-original-article-mode)
eec82323
LMI		 2782 (make-local-variable 'gnus-original-article))
2783 (if (get-buffer name)
2784 (save-excursion
2785 (set-buffer name)
16409b0b
GM		 2786 (when gnus-article-mime-handles
2787 (mm-destroy-parts gnus-article-mime-handles)
2788 (setq gnus-article-mime-handles nil))
2789 ;; Set it to nil in article-buffer!
a1506d29 2790 (setq gnus-article-mime-handle-alist nil)
16409b0b 2791 (buffer-disable-undo)
eec82323 2792 (setq buffer-read-only t)
eec82323
LMI		 2793 (unless (eq major-mode 'gnus-article-mode)
2794 (gnus-article-mode))
2795 (current-buffer))
2796 (save-excursion
6748645f 2797 (set-buffer (gnus-get-buffer-create name))
eec82323
LMI		 2798 (gnus-article-mode)
2799 (make-local-variable 'gnus-summary-buffer)
16409b0b 2800 (gnus-summary-set-local-parameters gnus-newsgroup-name)
eec82323
LMI		 2801 (current-buffer)))))
2802
2803;; Set article window start at LINE, where LINE is the number of lines
2804;; from the head of the article.
2805(defun gnus-article-set-window-start (&optional line)
2806 (set-window-start
2807 (get-buffer-window gnus-article-buffer t)
2808 (save-excursion
2809 (set-buffer gnus-article-buffer)
2810 (goto-char (point-min))
2811 (if (not line)
2812 (point-min)
2813 (gnus-message 6 "Moved to bookmark")
2814 (search-forward "\n\n" nil t)
2815 (forward-line line)
2816 (point)))))
2817
2818(defun gnus-article-prepare (article &optional all-headers header)
2819 "Prepare ARTICLE in article mode buffer.
2820ARTICLE should either be an article number or a Message-ID.
2821If ARTICLE is an id, HEADER should be the article headers.
2822If ALL-HEADERS is non-nil, no headers are hidden."
2823 (save-excursion
2824 ;; Make sure we start in a summary buffer.
2825 (unless (eq major-mode 'gnus-summary-mode)
2826 (set-buffer gnus-summary-buffer))
2827 (setq gnus-summary-buffer (current-buffer))
eec82323
LMI		 2828 (let* ((gnus-article (if header (mail-header-number header) article))
2829 (summary-buffer (current-buffer))
6748645f 2830 (gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
eec82323
LMI		 2831 (group gnus-newsgroup-name)
2832 result)
2833 (save-excursion
2834 (gnus-article-setup-buffer)
2835 (set-buffer gnus-article-buffer)
2836 ;; Deactivate active regions.
2837 (when (and (boundp 'transient-mark-mode)
2838 transient-mark-mode)
2839 (setq mark-active nil))
2840 (if (not (setq result (let ((buffer-read-only nil))
2841 (gnus-request-article-this-buffer
2842 article group))))
2843 ;; There is no such article.
2844 (save-excursion
2845 (when (and (numberp article)
2846 (not (memq article gnus-newsgroup-sparse)))
2847 (setq gnus-article-current
2848 (cons gnus-newsgroup-name article))
2849 (set-buffer gnus-summary-buffer)
2850 (setq gnus-current-article article)
6748645f
LMI		 2851 (if (eq (gnus-article-mark article) gnus-undownloaded-mark)
2852 (progn
2853 (gnus-summary-set-agent-mark article)
2854 (message "Message marked for downloading"))
2855 (gnus-summary-mark-article article gnus-canceled-mark)
2856 (unless (memq article gnus-newsgroup-sparse)
16409b0b 2857 (gnus-error 1 "No such article (may have expired or been canceled)")))))
6748645f
LMI		 2858 (if (or (eq result 'pseudo)
2859 (eq result 'nneething))
eec82323
LMI		 2860 (progn
2861 (save-excursion
2862 (set-buffer summary-buffer)
6748645f 2863 (push article gnus-newsgroup-history)
eec82323 2864 (setq gnus-last-article gnus-current-article
eec82323
LMI		 2865 gnus-current-article 0
2866 gnus-current-headers nil
2867 gnus-article-current nil)
2868 (if (eq result 'nneething)
2869 (gnus-configure-windows 'summary)
2870 (gnus-configure-windows 'article))
2871 (gnus-set-global-variables))
16409b0b
GM		 2872 (let ((gnus-article-mime-handle-alist-1
2873 gnus-article-mime-handle-alist))
2874 (gnus-set-mode-line 'article)))
eec82323
LMI		 2875 ;; The result from the `request' was an actual article -
2876 ;; or at least some text that is now displayed in the
2877 ;; article buffer.
2878 (when (and (numberp article)
2879 (not (eq article gnus-current-article)))
2880 ;; Seems like a new article has been selected.
2881 ;; `gnus-current-article' must be an article number.
2882 (save-excursion
2883 (set-buffer summary-buffer)
6748645f 2884 (push article gnus-newsgroup-history)
eec82323 2885 (setq gnus-last-article gnus-current-article
eec82323
LMI		 2886 gnus-current-article article
2887 gnus-current-headers
2888 (gnus-summary-article-header gnus-current-article)
2889 gnus-article-current
2890 (cons gnus-newsgroup-name gnus-current-article))
2891 (unless (vectorp gnus-current-headers)
2892 (setq gnus-current-headers nil))
6748645f
LMI		 2893 (gnus-summary-goto-subject gnus-current-article)
2894 (when (gnus-summary-show-thread)
2895 ;; If the summary buffer really was folded, the
2896 ;; previous goto may not actually have gone to
2897 ;; the right article, but the thread root instead.
2898 ;; So we go again.
2899 (gnus-summary-goto-subject gnus-current-article))
2900 (gnus-run-hooks 'gnus-mark-article-hook)
eec82323
LMI		 2901 (gnus-set-mode-line 'summary)
2902 (when (gnus-visual-p 'article-highlight 'highlight)
6748645f 2903 (gnus-run-hooks 'gnus-visual-mark-article-hook))
eec82323 2904 ;; Set the global newsgroup variables here.
eec82323
LMI		 2905 (gnus-set-global-variables)
2906 (setq gnus-have-all-headers
6748645f 2907 (or all-headers gnus-show-all-headers))))
e0bad764
DL		 2908 (save-excursion
2909 (gnus-configure-windows 'article))
eec82323
LMI		 2910 (when (or (numberp article)
2911 (stringp article))
16409b0b 2912 (gnus-article-prepare-display)
eec82323
LMI		 2913 ;; Do page break.
2914 (goto-char (point-min))
2915 (setq gnus-page-broken
2916 (when gnus-break-pages
2917 (gnus-narrow-to-page)
2918 t)))
16409b0b
GM		 2919 (let ((gnus-article-mime-handle-alist-1
2920 gnus-article-mime-handle-alist))
2921 (gnus-set-mode-line 'article))
2922 (article-goto-body)
6748645f 2923 (set-window-point (get-buffer-window (current-buffer)) (point))
16409b0b 2924 (gnus-configure-windows 'article)
eec82323
LMI		 2925 t))))))
2926
16409b0b
GM		 2927;;;###autoload
2928(defun gnus-article-prepare-display ()
2929 "Make the current buffer look like a nice article."
2930 ;; Hooks for getting information from the article.
2931 ;; This hook must be called before being narrowed.
2932 (let ((gnus-article-buffer (current-buffer))
2933 buffer-read-only)
2934 (unless (eq major-mode 'gnus-article-mode)
2935 (gnus-article-mode))
2936 (setq buffer-read-only nil
2937 gnus-article-wash-types nil)
2938 (gnus-run-hooks 'gnus-tmp-internal-hook)
2939 (when gnus-display-mime-function
2940 (funcall gnus-display-mime-function))
2941 (gnus-run-hooks 'gnus-article-prepare-hook)))
2942
2943;;;
2944;;; Gnus MIME viewing functions
2945;;;
2946
2947(defvar gnus-mime-button-line-format "%{%([%p. %d%T]%)%}%e\n"
2948 "The following specs can be used:
2949%t The MIME type
2950%T MIME type, along with additional info
2951%n The `name' parameter
2952%d The description, if any
2953%l The length of the encoded part
2954%p The part identifier number
2955%e Dots if the part isn't displayed")
2956
2957(defvar gnus-mime-button-line-format-alist
2958 '((?t gnus-tmp-type ?s)
2959 (?T gnus-tmp-type-long ?s)
2960 (?n gnus-tmp-name ?s)
2961 (?d gnus-tmp-description ?s)
2962 (?p gnus-tmp-id ?s)
2963 (?l gnus-tmp-length ?d)
2964 (?e gnus-tmp-dots ?s)))
2965
2966(defvar gnus-mime-button-commands
2967 '((gnus-article-press-button "\r" "Toggle Display")
2968 (gnus-mime-view-part "v" "View Interactively...")
2969 (gnus-mime-view-part-as-type "t" "View As Type...")
2970 (gnus-mime-save-part "o" "Save...")
2971 (gnus-mime-copy-part "c" "View As Text, In Other Buffer")
2972 (gnus-mime-inline-part "i" "View As Text, In This Buffer")
2973 (gnus-mime-internalize-part "E" "View Internally")
2974 (gnus-mime-externalize-part "e" "View Externally")
e0bad764
DL		 2975 (gnus-mime-pipe-part "|" "Pipe To Command...")
2976 (gnus-mime-action-on-part "." "Take action on the part")))
16409b0b
GM		 2977
2978(defun gnus-article-mime-part-status ()
2979 (if gnus-article-mime-handle-alist-1
2980 (format " (%d parts)" (length gnus-article-mime-handle-alist-1))
2981 ""))
2982
2983(defvar gnus-mime-button-map
2984 (let ((map (make-sparse-keymap)))
bb367cba
DL		 2985 ;; Not for Emacs 21: fixme better.
2986 ;; (set-keymap-parent map gnus-article-mode-map)
16409b0b
GM		 2987 (define-key map gnus-mouse-2 'gnus-article-push-button)
2988 (define-key map gnus-down-mouse-3 'gnus-mime-button-menu)
2989 (dolist (c gnus-mime-button-commands)
2990 (define-key map (cadr c) (car c)))
2991 map))
2992
2993(defun gnus-mime-button-menu (event)
2994 "Construct a context-sensitive menu of MIME commands."
2995 (interactive "e")
2996 (save-excursion
bb367cba
DL		 2997 (mouse-set-point event)
2998 (gnus-article-check-buffer)
2999 (let ((response (x-popup-menu
3000 t `("MIME Part"
3001 ("" ,@(mapcar (lambda (c)
3002 (cons (caddr c) (car c)))
3003 gnus-mime-button-commands))))))
3004 (if response
3005 (call-interactively response)))))
16409b0b
GM		 3006
3007(defun gnus-mime-view-all-parts (&optional handles)
3008 "View all the MIME parts."
3009 (interactive)
3010 (save-current-buffer
3011 (set-buffer gnus-article-buffer)
3012 (let ((handles (or handles gnus-article-mime-handles))
3013 (mail-parse-charset gnus-newsgroup-charset)
a1506d29 3014 (mail-parse-ignored-charsets
16409b0b
GM		 3015 (save-excursion (set-buffer gnus-summary-buffer)
3016 gnus-newsgroup-ignored-charsets)))
3017 (if (stringp (car handles))
3018 (gnus-mime-view-all-parts (cdr handles))
3019 (mapcar 'mm-display-part handles)))))
3020
3021(defun gnus-mime-save-part ()
3022 "Save the MIME part under point."
3023 (interactive)
3024 (gnus-article-check-buffer)
3025 (let ((data (get-text-property (point) 'gnus-data)))
3026 (mm-save-part data)))
3027
3028(defun gnus-mime-pipe-part ()
3029 "Pipe the MIME part under point to a process."
3030 (interactive)
3031 (gnus-article-check-buffer)
3032 (let ((data (get-text-property (point) 'gnus-data)))
3033 (mm-pipe-part data)))
3034
3035(defun gnus-mime-view-part ()
3036 "Interactively choose a viewing method for the MIME part under point."
3037 (interactive)
3038 (gnus-article-check-buffer)
3039 (let ((data (get-text-property (point) 'gnus-data)))
619ac84f 3040 (push (setq data (copy-sequence data)) gnus-article-mime-handles)
16409b0b
GM		 3041 (mm-interactively-view-part data)))
3042
3043(defun gnus-mime-view-part-as-type-internal ()
3044 (gnus-article-check-buffer)
3045 (let* ((name (mail-content-type-get
3046 (mm-handle-type (get-text-property (point) 'gnus-data))
3047 'name))
3048 (def-type (and name (mm-default-file-encoding name))))
3049 (and def-type (cons def-type 0))))
3050
3051(defun gnus-mime-view-part-as-type (mime-type)
3052 "Choose a MIME media type, and view the part as such."
3053 (interactive
3054 (list (completing-read
3055 "View as MIME type: "
3056 (mapcar #'list (mailcap-mime-types))
3057 nil nil
3058 (gnus-mime-view-part-as-type-internal))))
3059 (gnus-article-check-buffer)
3060 (let ((handle (get-text-property (point) 'gnus-data)))
3061 (gnus-mm-display-part
3062 (mm-make-handle (mm-handle-buffer handle)
3063 (cons mime-type (cdr (mm-handle-type handle)))
3064 (mm-handle-encoding handle)
3065 (mm-handle-undisplayer handle)
3066 (mm-handle-disposition handle)
3067 (mm-handle-description handle)
3068 (mm-handle-cache handle)
3069 (mm-handle-id handle)))))
3070
3071(defun gnus-mime-copy-part (&optional handle)
6b9483fa 3072 "Put the MIME part under point into a new buffer."
16409b0b
GM		 3073 (interactive)
3074 (gnus-article-check-buffer)
3075 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
619ac84f 3076 (contents (mm-get-part handle))
16409b0b
GM		 3077 (base (file-name-nondirectory
3078 (or
3079 (mail-content-type-get (mm-handle-type handle) 'name)
3080 (mail-content-type-get (mm-handle-type handle)
3081 'filename)
3082 "*decoded*")))
3083 (buffer (generate-new-buffer base)))
3084 (switch-to-buffer buffer)
3085 (insert contents)
3086 ;; We do it this way to make `normal-mode' set the appropriate mode.
3087 (unwind-protect
3088 (progn
3089 (setq buffer-file-name (expand-file-name base))
3090 (normal-mode))
3091 (setq buffer-file-name nil))
3092 (goto-char (point-min))))
3093
e0bad764 3094(defun gnus-mime-inline-part (&optional handle arg)
16409b0b 3095 "Insert the MIME part under point into the current buffer."
e0bad764 3096 (interactive (list nil current-prefix-arg))
16409b0b
GM		 3097 (gnus-article-check-buffer)
3098 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
e0bad764 3099 contents charset
16409b0b
GM		 3100 (b (point))
3101 buffer-read-only)
3102 (if (mm-handle-undisplayer handle)
3103 (mm-remove-part handle)
3104 (setq contents (mm-get-part handle))
e0bad764
DL		 3105 (cond
3106 ((not arg)
3107 (setq charset (or (mail-content-type-get
3108 (mm-handle-type handle) 'charset)
3109 gnus-newsgroup-charset)))
3110 ((numberp arg)
3111 (setq charset
a1506d29 3112 (or (cdr (assq arg
e0bad764
DL		 3113 gnus-summary-show-article-charset-alist))
3114 (read-coding-system "Charset: ")))))
16409b0b 3115 (forward-line 2)
e0bad764 3116 (mm-insert-inline handle
a1506d29
JB		 3117 (if (and charset
3118 (setq charset (mm-charset-to-coding-system
e0bad764
DL		 3119 charset))
3120 (not (eq charset 'ascii)))
3121 (mm-decode-coding-string contents charset)
3122 contents))
16409b0b
GM		 3123 (goto-char b))))
3124
3125(defun gnus-mime-externalize-part (&optional handle)
3126 "View the MIME part under point with an external viewer."
3127 (interactive)
3128 (gnus-article-check-buffer)
3129 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3130 (mm-user-display-methods nil)
3131 (mm-inlined-types nil)
3132 (mail-parse-charset gnus-newsgroup-charset)
a1506d29 3133 (mail-parse-ignored-charsets
16409b0b
GM		 3134 (save-excursion (set-buffer gnus-summary-buffer)
3135 gnus-newsgroup-ignored-charsets)))
3136 (if (mm-handle-undisplayer handle)
3137 (mm-remove-part handle)
3138 (mm-display-part handle))))
3139
3140(defun gnus-mime-internalize-part (&optional handle)
3141 "View the MIME part under point with an internal viewer.
3142In no internal viewer is available, use an external viewer."
3143 (interactive)
3144 (gnus-article-check-buffer)
3145 (let* ((handle (or handle (get-text-property (point) 'gnus-data)))
3146 (mm-inlined-types '(".*"))
3147 (mm-inline-large-images t)
3148 (mail-parse-charset gnus-newsgroup-charset)
a1506d29 3149 (mail-parse-ignored-charsets
16409b0b
GM		 3150 (save-excursion (set-buffer gnus-summary-buffer)
3151 gnus-newsgroup-ignored-charsets)))
3152 (if (mm-handle-undisplayer handle)
3153 (mm-remove-part handle)
3154 (mm-display-part handle))))
3155
e0bad764
DL		 3156(defun gnus-mime-action-on-part (&optional action)
3157 "Do something with the MIME attachment at \(point\)."
3158 (interactive
3159 (list (completing-read "Action: " gnus-mime-action-alist)))
3160 (gnus-article-check-buffer)
3161 (let ((action-pair (assoc action gnus-mime-action-alist)))
3162 (if action-pair
3163 (funcall (cdr action-pair)))))
3164
3165
16409b0b
GM		 3166(defun gnus-article-part-wrapper (n function)
3167 (save-current-buffer
3168 (set-buffer gnus-article-buffer)
3169 (when (> n (length gnus-article-mime-handle-alist))
3170 (error "No such part"))
3171 (gnus-article-goto-part n)
3172 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
3173 (funcall function handle))))
3174
3175(defun gnus-article-pipe-part (n)
3176 "Pipe MIME part N, which is the numerical prefix."
3177 (interactive "p")
3178 (gnus-article-part-wrapper n 'mm-pipe-part))
3179
3180(defun gnus-article-save-part (n)
3181 "Save MIME part N, which is the numerical prefix."
3182 (interactive "p")
3183 (gnus-article-part-wrapper n 'mm-save-part))
3184
3185(defun gnus-article-interactively-view-part (n)
3186 "View MIME part N interactively, which is the numerical prefix."
3187 (interactive "p")
3188 (gnus-article-part-wrapper n 'mm-interactively-view-part))
3189
3190(defun gnus-article-copy-part (n)
3191 "Copy MIME part N, which is the numerical prefix."
3192 (interactive "p")
3193 (gnus-article-part-wrapper n 'gnus-mime-copy-part))
3194
3195(defun gnus-article-externalize-part (n)
3196 "View MIME part N externally, which is the numerical prefix."
3197 (interactive "p")
3198 (gnus-article-part-wrapper n 'gnus-mime-externalize-part))
3199
3200(defun gnus-article-inline-part (n)
3201 "Inline MIME part N, which is the numerical prefix."
3202 (interactive "p")
3203 (gnus-article-part-wrapper n 'gnus-mime-inline-part))
3204
3205(defun gnus-article-mime-match-handle-first (condition)
3206 (if condition
3207 (let ((alist gnus-article-mime-handle-alist) ihandle n)
3208 (while (setq ihandle (pop alist))
a1506d29 3209 (if (and (cond
16409b0b
GM		 3210 ((functionp condition)
3211 (funcall condition (cdr ihandle)))
a1506d29 3212 ((eq condition 'undisplayed)
16409b0b
GM		 3213 (not (or (mm-handle-undisplayer (cdr ihandle))
3214 (equal (mm-handle-media-type (cdr ihandle))
3215 "multipart/alternative"))))
3216 ((eq condition 'undisplayed-alternative)
3217 (not (mm-handle-undisplayer (cdr ihandle))))
3218 (t t))
3219 (gnus-article-goto-part (car ihandle))
3220 (or (not n) (< (car ihandle) n)))
3221 (setq n (car ihandle))))
3222 (or n 1))
3223 1))
3224
3225(defun gnus-article-view-part (&optional n)
3226 "View MIME part N, which is the numerical prefix."
3227 (interactive "P")
3228 (save-current-buffer
3229 (set-buffer gnus-article-buffer)
a1506d29 3230 (or (numberp n) (setq n (gnus-article-mime-match-handle-first
16409b0b
GM		 3231 gnus-article-mime-match-handle-function)))
3232 (when (> n (length gnus-article-mime-handle-alist))
3233 (error "No such part"))
3234 (let ((handle (cdr (assq n gnus-article-mime-handle-alist))))
3235 (when (gnus-article-goto-part n)
3236 (if (equal (car handle) "multipart/alternative")
3237 (gnus-article-press-button)
3238 (when (eq (gnus-mm-display-part handle) 'internal)
3239 (gnus-set-window-start)))))))
3240
e0bad764
DL		 3241(defsubst gnus-article-mime-total-parts ()
3242 (if (bufferp (car gnus-article-mime-handles))
3243 1 ;; single part
3244 (1- (length gnus-article-mime-handles))))
3245
16409b0b
GM		 3246(defun gnus-mm-display-part (handle)
3247 "Display HANDLE and fix MIME button."
3248 (let ((id (get-text-property (point) 'gnus-part))
3249 (point (point))
3250 buffer-read-only)
3251 (forward-line 1)
3252 (prog1
3253 (let ((window (selected-window))
3254 (mail-parse-charset gnus-newsgroup-charset)
a1506d29 3255 (mail-parse-ignored-charsets
16409b0b
GM		 3256 (save-excursion (set-buffer gnus-summary-buffer)
3257 gnus-newsgroup-ignored-charsets)))
3258 (save-excursion
3259 (unwind-protect
3260 (let ((win (get-buffer-window (current-buffer) t))
3261 (beg (point)))
3262 (when win
3263 (select-window win))
3264 (goto-char point)
3265 (forward-line)
3266 (if (mm-handle-displayed-p handle)
3267 ;; This will remove the part.
3268 (mm-display-part handle)
3269 (save-restriction
3270 (narrow-to-region (point) (1+ (point)))
3271 (mm-display-part handle)
3272 ;; We narrow to the part itself and
3273 ;; then call the treatment functions.
3274 (goto-char (point-min))
3275 (forward-line 1)
3276 (narrow-to-region (point) (point-max))
3277 (gnus-treat-article
3278 nil id
e0bad764 3279 (gnus-article-mime-total-parts)
16409b0b
GM		 3280 (mm-handle-media-type handle)))))
3281 (select-window window))))
3282 (goto-char point)
3283 (delete-region (gnus-point-at-bol) (progn (forward-line 1) (point)))
3284 (gnus-insert-mime-button
3285 handle id (list (mm-handle-displayed-p handle)))
3286 (goto-char point))))
3287
3288(defun gnus-article-goto-part (n)
3289 "Go to MIME part N."
3290 (let ((point (text-property-any (point-min) (point-max) 'gnus-part n)))
3291 (when point
3292 (goto-char point))))
3293
3294(defun gnus-insert-mime-button (handle gnus-tmp-id &optional displayed)
3295 (let ((gnus-tmp-name
3296 (or (mail-content-type-get (mm-handle-type handle)
3297 'name)
3298 (mail-content-type-get (mm-handle-disposition handle)
3299 'filename)
3300 ""))
3301 (gnus-tmp-type (mm-handle-media-type handle))
3302 (gnus-tmp-description
3303 (mail-decode-encoded-word-string (or (mm-handle-description handle)
3304 "")))
3305 (gnus-tmp-dots
3306 (if (if displayed (car displayed)
3307 (mm-handle-displayed-p handle))
3308 "" "..."))
3309 (gnus-tmp-length (with-current-buffer (mm-handle-buffer handle)
3310 (buffer-size)))
3311 gnus-tmp-type-long b e)
3312 (when (string-match ".*/" gnus-tmp-name)
3313 (setq gnus-tmp-name (replace-match "" t t gnus-tmp-name)))
3314 (setq gnus-tmp-type-long (concat gnus-tmp-type
3315 (and (not (equal gnus-tmp-name ""))
3316 (concat "; " gnus-tmp-name))))
3317 (or (equal gnus-tmp-description "")
3318 (setq gnus-tmp-type-long (concat " --- " gnus-tmp-type-long)))
3319 (unless (bolp)
3320 (insert "\n"))
3321 (setq b (point))
3322 (gnus-eval-format
3323 gnus-mime-button-line-format gnus-mime-button-line-format-alist
bb367cba
DL		 3324 `(keymap ,gnus-mime-button-map
3325 ;; Not for Emacs 21: fixme better.
3326 ;; local-map ,gnus-mime-button-map
3327 gnus-callback gnus-mm-display-part
3328 gnus-part ,gnus-tmp-id
3329 article-type annotation
3330 gnus-data ,handle))
16409b0b
GM		 3331 (setq e (point))
3332 (widget-convert-button
3333 'link b e
3334 :mime-handle handle
3335 :action 'gnus-widget-press-button
3336 :button-keymap gnus-mime-button-map
3337 :help-echo
3338 (lambda (widget/window &optional overlay pos)
3339 ;; Needed to properly clear the message due to a bug in
3340 ;; wid-edit (XEmacs only).
3341 (if (boundp 'help-echo-owns-message)
3342 (setq help-echo-owns-message t))
3343 (format
3344 "%S: %s the MIME part; %S: more options"
3345 (aref gnus-mouse-2 0)
3346 ;; XEmacs will get a single widget arg; Emacs 21 will get
3347 ;; window, overlay, position.
3348 (if (mm-handle-displayed-p
3349 (if overlay
e0bad764
DL		 3350 (with-current-buffer (gnus-overlay-buffer overlay)
3351 (widget-get (widget-at (gnus-overlay-start overlay))
16409b0b
GM		 3352 :mime-handle))
3353 (widget-get widget/window :mime-handle)))
3354 "hide" "show")
3355 (aref gnus-down-mouse-3 0))))))
3356
3357(defun gnus-widget-press-button (elems el)
3358 (goto-char (widget-get elems :from))
3359 (gnus-article-press-button))
3360
3361(defvar gnus-displaying-mime nil)
3362
3363(defun gnus-display-mime (&optional ihandles)
3364 "Display the MIME parts."
3365 (save-excursion
3366 (save-selected-window
3367 (let ((window (get-buffer-window gnus-article-buffer))
3368 (point (point)))
3369 (when window
3370 (select-window window)
3371 ;; We have to do this since selecting the window
3372 ;; may change the point. So we set the window point.
3373 (set-window-point window point)))
3374 (let* ((handles (or ihandles (mm-dissect-buffer) (mm-uu-dissect)))
3375 buffer-read-only handle name type b e display)
3376 (when (and (not ihandles)
3377 (not gnus-displaying-mime))
3378 ;; Top-level call; we clean up.
3379 (when gnus-article-mime-handles
3380 (mm-destroy-parts gnus-article-mime-handles)
3381 (setq gnus-article-mime-handle-alist nil));; A trick.
3382 (setq gnus-article-mime-handles handles)
3383 ;; We allow users to glean info from the handles.
3384 (when gnus-article-mime-part-function
3385 (gnus-mime-part-function handles)))
3386 (if (and handles
3387 (or (not (stringp (car handles)))
3388 (cdr handles)))
3389 (progn
3390 (when (and (not ihandles)
3391 (not gnus-displaying-mime))
3392 ;; Clean up for mime parts.
3393 (article-goto-body)
3394 (delete-region (point) (point-max)))
3395 (let ((gnus-displaying-mime t))
3396 (gnus-mime-display-part handles)))
3397 (save-restriction
3398 (article-goto-body)
3399 (narrow-to-region (point) (point-max))
3400 (gnus-treat-article nil 1 1)
3401 (widen)))
3402 (unless ihandles
3403 ;; Highlight the headers.
3404 (save-excursion
3405 (save-restriction
3406 (article-goto-body)
3407 (narrow-to-region (point-min) (point))
3408 (gnus-treat-article 'head))))))))
3409
3410(defvar gnus-mime-display-multipart-as-mixed nil)
3411
3412(defun gnus-mime-display-part (handle)
3413 (cond
3414 ;; Single part.
3415 ((not (stringp (car handle)))
3416 (gnus-mime-display-single handle))
3417 ;; User-defined multipart
3418 ((cdr (assoc (car handle) gnus-mime-multipart-functions))
3419 (funcall (cdr (assoc (car handle) gnus-mime-multipart-functions))
3420 handle))
3421 ;; multipart/alternative
3422 ((and (equal (car handle) "multipart/alternative")
3423 (not gnus-mime-display-multipart-as-mixed))
3424 (let ((id (1+ (length gnus-article-mime-handle-alist))))
3425 (push (cons id handle) gnus-article-mime-handle-alist)
3426 (gnus-mime-display-alternative (cdr handle) nil nil id)))
3427 ;; multipart/related
3428 ((and (equal (car handle) "multipart/related")
3429 (not gnus-mime-display-multipart-as-mixed))
3430 ;;;!!!We should find the start part, but we just default
3431 ;;;!!!to the first part.
3432 (gnus-mime-display-part (cadr handle)))
3433 ;; Other multiparts are handled like multipart/mixed.
3434 (t
3435 (gnus-mime-display-mixed (cdr handle)))))
3436
3437(defun gnus-mime-part-function (handles)
3438 (if (stringp (car handles))
3439 (mapcar 'gnus-mime-part-function (cdr handles))
3440 (funcall gnus-article-mime-part-function handles)))
3441
3442(defun gnus-mime-display-mixed (handles)
3443 (mapcar 'gnus-mime-display-part handles))
3444
3445(defun gnus-mime-display-single (handle)
3446 (let ((type (mm-handle-media-type handle))
3447 (ignored gnus-ignored-mime-types)
3448 (not-attachment t)
3449 (move nil)
3450 display text)
3451 (catch 'ignored
3452 (progn
3453 (while ignored
3454 (when (string-match (pop ignored) type)
3455 (throw 'ignored nil)))
3456 (if (and (setq not-attachment
3457 (and (not (mm-inline-override-p handle))
3458 (or (not (mm-handle-disposition handle))
3459 (equal (car (mm-handle-disposition handle))
3460 "inline")
3461 (mm-attachment-override-p handle))))
3462 (mm-automatic-display-p handle)
3463 (or (mm-inlined-p handle)
3464 (mm-automatic-external-display-p type)))
3465 (setq display t)
3466 (when (equal (mm-handle-media-supertype handle) "text")
3467 (setq text t)))
e0bad764
DL		 3468 (let ((id (1+ (length gnus-article-mime-handle-alist)))
3469 beg)
16409b0b
GM		 3470 (push (cons id handle) gnus-article-mime-handle-alist)
3471 (when (or (not display)
3472 (not (gnus-unbuttonized-mime-type-p type)))
3473 ;(gnus-article-insert-newline)
3474 (gnus-insert-mime-button
3475 handle id (list (or display (and not-attachment text))))
3476 (gnus-article-insert-newline)
3477 ;(gnus-article-insert-newline)
e0bad764
DL		 3478 (setq move t))
3479 (setq beg (point))
16409b0b
GM		 3480 (cond
3481 (display
3482 (when move
3483 (forward-line -2)
3484 (setq beg (point)))
3485 (let ((mail-parse-charset gnus-newsgroup-charset)
a1506d29 3486 (mail-parse-ignored-charsets
16409b0b
GM		 3487 (save-excursion (condition-case ()
3488 (set-buffer gnus-summary-buffer)
3489 (error))
3490 gnus-newsgroup-ignored-charsets)))
3491 (mm-display-part handle t))
3492 (goto-char (point-max)))
3493 ((and text not-attachment)
3494 (when move
3495 (forward-line -2)
3496 (setq beg (point)))
3497 (gnus-article-insert-newline)
3498 (mm-insert-inline handle (mm-get-part handle))
3499 (goto-char (point-max))))
3500 ;; Do highlighting.
3501 (save-excursion
3502 (save-restriction
3503 (narrow-to-region beg (point))
3504 (gnus-treat-article
a1506d29 3505 nil id
e0bad764 3506 (gnus-article-mime-total-parts)
16409b0b
GM		 3507 (mm-handle-media-type handle)))))))))
3508
3509(defun gnus-unbuttonized-mime-type-p (type)
3510 "Say whether TYPE is to be unbuttonized."
3511 (unless gnus-inhibit-mime-unbuttonizing
3512 (catch 'found
3513 (let ((types gnus-unbuttonized-mime-types))
3514 (while types
3515 (when (string-match (pop types) type)
3516 (throw 'found t)))))))
3517
3518(defun gnus-article-insert-newline ()
3519 "Insert a newline, but mark it as undeletable."
3520 (gnus-put-text-property
3521 (point) (progn (insert "\n") (point)) 'gnus-undeletable t))
3522
3523(defun gnus-mime-display-alternative (handles &optional preferred ibegend id)
3524 (let* ((preferred (or preferred (mm-preferred-alternative handles)))
3525 (ihandles handles)
3526 (point (point))
3527 handle buffer-read-only from props begend not-pref)
3528 (save-window-excursion
3529 (save-restriction
3530 (when ibegend
3531 (narrow-to-region (car ibegend)
3532 (or (cdr ibegend)
3533 (progn
3534 (goto-char (car ibegend))
3535 (forward-line 2)
3536 (point))))
3537 (delete-region (point-min) (point-max))
3538 (mm-remove-parts handles))
3539 (setq begend (list (point-marker)))
3540 ;; Do the toggle.
3541 (unless (setq not-pref (cadr (member preferred ihandles)))
3542 (setq not-pref (car ihandles)))
3543 (when (or ibegend
3544 (not (gnus-unbuttonized-mime-type-p
3545 "multipart/alternative")))
3546 (gnus-add-text-properties
3547 (setq from (point))
3548 (progn
3549 (insert (format "%d. " id))
3550 (point))
3551 `(gnus-callback
3552 (lambda (handles)
3553 (unless ,(not ibegend)
3554 (setq gnus-article-mime-handle-alist
3555 ',gnus-article-mime-handle-alist))
3556 (gnus-mime-display-alternative
3557 ',ihandles ',not-pref ',begend ,id))
bb367cba
DL		 3558 ;; Not for Emacs 21: fixme better.
3559 ;; local-map ,gnus-mime-button-map
16409b0b
GM		 3560 ,gnus-mouse-face-prop ,gnus-article-mouse-face
3561 face ,gnus-article-button-face
3562 keymap ,gnus-mime-button-map
3563 gnus-part ,id
3564 gnus-data ,handle))
3565 (widget-convert-button 'link from (point)
3566 :action 'gnus-widget-press-button
3567 :button-keymap gnus-widget-button-keymap)
3568 ;; Do the handles
3569 (while (setq handle (pop handles))
3570 (gnus-add-text-properties
3571 (setq from (point))
3572 (progn
3573 (insert (format "(%c) %-18s"
3574 (if (equal handle preferred) ?* ? )
3575 (mm-handle-media-type handle)))
3576 (point))
3577 `(gnus-callback
3578 (lambda (handles)
3579 (unless ,(not ibegend)
3580 (setq gnus-article-mime-handle-alist
3581 ',gnus-article-mime-handle-alist))
3582 (gnus-mime-display-alternative
3583 ',ihandles ',handle ',begend ,id))
bb367cba
DL		 3584 ;; Not for Emacs 21: fixme better.
3585 ;; local-map ,gnus-mime-button-map
16409b0b
GM		 3586 ,gnus-mouse-face-prop ,gnus-article-mouse-face
3587 face ,gnus-article-button-face
3588 keymap ,gnus-mime-button-map
3589 gnus-part ,id
3590 gnus-data ,handle))
3591 (widget-convert-button 'link from (point)
3592 :action 'gnus-widget-press-button
3593 :button-keymap gnus-widget-button-keymap)
3594 (insert " "))
3595 (insert "\n\n"))
3596 (when preferred
3597 (if (stringp (car preferred))
3598 (gnus-display-mime preferred)
3599 (let ((mail-parse-charset gnus-newsgroup-charset)
a1506d29 3600 (mail-parse-ignored-charsets
16409b0b
GM		 3601 (save-excursion (set-buffer gnus-summary-buffer)
3602 gnus-newsgroup-ignored-charsets)))
3603 (mm-display-part preferred)
3604 ;; Do highlighting.
3605 (save-excursion
3606 (save-restriction
3607 (narrow-to-region (car begend) (point-max))
3608 (gnus-treat-article
3609 nil (length gnus-article-mime-handle-alist)
e0bad764 3610 (gnus-article-mime-total-parts)
16409b0b
GM		 3611 (mm-handle-media-type handle))))))
3612 (goto-char (point-max))
3613 (setcdr begend (point-marker)))))
3614 (when ibegend
3615 (goto-char point))))
3616
eec82323
LMI		 3617(defun gnus-article-wash-status ()
3618 "Return a string which display status of article washing."
3619 (save-excursion
3620 (set-buffer gnus-article-buffer)
16409b0b
GM		 3621 (let ((cite (memq 'cite gnus-article-wash-types))
3622 (headers (memq 'headers gnus-article-wash-types))
3623 (boring (memq 'boring-headers gnus-article-wash-types))
3624 (pgp (memq 'pgp gnus-article-wash-types))
3625 (pem (memq 'pem gnus-article-wash-types))
3626 (signature (memq 'signature gnus-article-wash-types))
3627 (overstrike (memq 'overstrike gnus-article-wash-types))
3628 (emphasis (memq 'emphasis gnus-article-wash-types)))
3629 (format "%c%c%c%c%c%c"
eec82323
LMI		 3630 (if cite ?c ? )
3631 (if (or headers boring) ?h ? )
3632 (if (or pgp pem) ?p ? )
3633 (if signature ?s ? )
3634 (if overstrike ?o ? )
eec82323
LMI		 3635 (if emphasis ?e ? )))))
3636
16409b0b 3637(defalias 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
6748645f
LMI		 3638
3639(defun gnus-article-maybe-hide-headers ()
eec82323
LMI		 3640 "Hide unwanted headers if `gnus-have-all-headers' is nil.
3641Provided for backwards compatibility."
16409b0b
GM		 3642 (when (and (or (not (gnus-buffer-live-p gnus-summary-buffer))
3643 (not (save-excursion (set-buffer gnus-summary-buffer)
3644 gnus-have-all-headers)))
3645 (not gnus-inhibit-hiding))
3646 (gnus-article-hide-headers)))
eec82323
LMI		 3647
3648;;; Article savers.
3649
3650(defun gnus-output-to-file (file-name)
3651 "Append the current article to a file named FILE-NAME."
3652 (let ((artbuf (current-buffer)))
16409b0b 3653 (with-temp-buffer
eec82323
LMI		 3654 (insert-buffer-substring artbuf)
3655 ;; Append newline at end of the buffer as separator, and then
3656 ;; save it to file.
3657 (goto-char (point-max))
3658 (insert "\n")
47e77e9f
SZ		 3659 (let ((file-name-coding-system nnmail-pathname-coding-system))
3660 (mm-append-to-file (point-min) (point-max) file-name))
a8151ef7 3661 t)))
eec82323
LMI		 3662
3663(defun gnus-narrow-to-page (&optional arg)
3664 "Narrow the article buffer to a page.
3665If given a numerical ARG, move forward ARG pages."
3666 (interactive "P")
3667 (setq arg (if arg (prefix-numeric-value arg) 0))
3668 (save-excursion
3669 (set-buffer gnus-article-buffer)
3670 (goto-char (point-min))
3671 (widen)
3672 ;; Remove any old next/prev buttons.
3673 (when (gnus-visual-p 'page-marker)
3674 (let ((buffer-read-only nil))
3675 (gnus-remove-text-with-property 'gnus-prev)
3676 (gnus-remove-text-with-property 'gnus-next)))
3677 (when
3678 (cond ((< arg 0)
3679 (re-search-backward page-delimiter nil 'move (1+ (abs arg))))
3680 ((> arg 0)
3681 (re-search-forward page-delimiter nil 'move arg)))
3682 (goto-char (match-end 0)))
3683 (narrow-to-region
3684 (point)
3685 (if (re-search-forward page-delimiter nil 'move)
3686 (match-beginning 0)
3687 (point)))
3688 (when (and (gnus-visual-p 'page-marker)
3689 (not (= (point-min) 1)))
3690 (save-excursion
3691 (goto-char (point-min))
3692 (gnus-insert-prev-page-button)))
3693 (when (and (gnus-visual-p 'page-marker)
3694 (< (+ (point-max) 2) (buffer-size)))
3695 (save-excursion
3696 (goto-char (point-max))
3697 (gnus-insert-next-page-button)))))
3698
3699;; Article mode commands
3700
3701(defun gnus-article-goto-next-page ()
3702 "Show the next page of the article."
3703 (interactive)
3704 (when (gnus-article-next-page)
3705 (goto-char (point-min))
3706 (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
3707
3708(defun gnus-article-goto-prev-page ()
3709 "Show the next page of the article."
3710 (interactive)
3711 (if (bobp) (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
3712 (gnus-article-prev-page nil)))
3713
3714(defun gnus-article-next-page (&optional lines)
3715 "Show the next page of the current article.
3716If end of article, return non-nil. Otherwise return nil.
3717Argument LINES specifies lines to be scrolled up."
3718 (interactive "p")
3719 (move-to-window-line -1)
3720 (if (save-excursion
3721 (end-of-line)
3722 (and (pos-visible-in-window-p) ;Not continuation line.
3723 (eobp)))
3724 ;; Nothing in this page.
3725 (if (or (not gnus-page-broken)
3726 (save-excursion
3727 (save-restriction
3728 (widen) (forward-line 1) (eobp)))) ;Real end-of-buffer?
3729 t ;Nothing more.
3730 (gnus-narrow-to-page 1) ;Go to next page.
3731 nil)
3732 ;; More in this page.
3733 (let ((scroll-in-place nil))
3734 (condition-case ()
3735 (scroll-up lines)
3736 (end-of-buffer
3737 ;; Long lines may cause an end-of-buffer error.
3738 (goto-char (point-max)))))
3739 (move-to-window-line 0)
3740 nil))
3741
3742(defun gnus-article-prev-page (&optional lines)
3743 "Show previous page of current article.
3744Argument LINES specifies lines to be scrolled down."
3745 (interactive "p")
3746 (move-to-window-line 0)
3747 (if (and gnus-page-broken
3748 (bobp)
3749 (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
3750 (progn
3751 (gnus-narrow-to-page -1) ;Go to previous page.
3752 (goto-char (point-max))
3753 (recenter -1))
3754 (let ((scroll-in-place nil))
3755 (prog1
3756 (condition-case ()
3757 (scroll-down lines)
3758 (beginning-of-buffer
3759 (goto-char (point-min))))
3760 (move-to-window-line 0)))))
3761
3762(defun gnus-article-refer-article ()
3763 "Read article specified by message-id around point."
3764 (interactive)
3765 (let ((point (point)))
3766 (search-forward ">" nil t) ;Move point to end of "<....>".
3767 (if (re-search-backward "\\(<[^<> \t\n]+>\\)" nil t)
3768 (let ((message-id (match-string 1)))
3769 (goto-char point)
3770 (set-buffer gnus-summary-buffer)
3771 (gnus-summary-refer-article message-id))
3772 (goto-char (point))
3773 (error "No references around point"))))
3774
3775(defun gnus-article-show-summary ()
3776 "Reconfigure windows to show summary buffer."
3777 (interactive)
3778 (if (not (gnus-buffer-live-p gnus-summary-buffer))
3779 (error "There is no summary buffer for this article buffer")
a8151ef7 3780 (gnus-article-set-globals)
eec82323 3781 (gnus-configure-windows 'article)
6748645f
LMI		 3782 (gnus-summary-goto-subject gnus-current-article)
3783 (gnus-summary-position-point)))
eec82323
LMI		 3784
3785(defun gnus-article-describe-briefly ()
3786 "Describe article mode commands briefly."
3787 (interactive)
16409b0b 3788 (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")))
eec82323
LMI		 3789
3790(defun gnus-article-summary-command ()
3791 "Execute the last keystroke in the summary buffer."
3792 (interactive)
3793 (let ((obuf (current-buffer))
3794 (owin (current-window-configuration))
3795 func)
6748645f 3796 (switch-to-buffer gnus-article-current-summary 'norecord)
eec82323
LMI		 3797 (setq func (lookup-key (current-local-map) (this-command-keys)))
3798 (call-interactively func)
3799 (set-buffer obuf)
3800 (set-window-configuration owin)
3801 (set-window-point (get-buffer-window (current-buffer)) (point))))
3802
3803(defun gnus-article-summary-command-nosave ()
3804 "Execute the last keystroke in the summary buffer."
3805 (interactive)
3806 (let (func)
6748645f 3807 (pop-to-buffer gnus-article-current-summary 'norecord)
eec82323
LMI		 3808 (setq func (lookup-key (current-local-map) (this-command-keys)))
3809 (call-interactively func)))
3810
16409b0b
GM		 3811(defun gnus-article-check-buffer ()
3812 "Beep if not in an article buffer."
3813 (unless (equal major-mode 'gnus-article-mode)
3814 (error "Command invoked outside of a Gnus article buffer")))
3815
eec82323
LMI		 3816(defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
3817 "Read a summary buffer key sequence and execute it from the article buffer."
3818 (interactive "P")
16409b0b 3819 (gnus-article-check-buffer)
eec82323 3820 (let ((nosaves
6748645f
LMI		 3821 '("q" "Q" "c" "r" "R" "\C-c\C-f" "m" "a" "f" "F"
3822 "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
3823 "=" "^" "\M-^" "|"))
3824 (nosave-but-article
3825 '("A\r"))
3826 (nosave-in-article
3827 '("\C-d"))
3828 (up-to-top
3829 '("n" "Gn" "p" "Gp"))
3830 keys new-sum-point)
eec82323 3831 (save-excursion
6748645f 3832 (set-buffer gnus-article-current-summary)
eec82323 3833 (let (gnus-pick-mode)
6748645f 3834 (push (or key last-command-event) unread-command-events)
4ddf0e64 3835 (setq keys (if (featurep 'xemacs)
16409b0b
GM		 3836 (events-to-keys (read-key-sequence nil))
3837 (read-key-sequence nil)))))
a1506d29 3838
eec82323
LMI		 3839 (message "")
3840
3841 (if (or (member keys nosaves)
6748645f
LMI		 3842 (member keys nosave-but-article)
3843 (member keys nosave-in-article))
3844 (let (func)
3845 (save-window-excursion
3846 (pop-to-buffer gnus-article-current-summary 'norecord)
3847 ;; We disable the pick minor mode commands.
3848 (let (gnus-pick-mode)
3849 (setq func (lookup-key (current-local-map) keys))))
16409b0b
GM		 3850 (if (or (not func)
3851 (numberp func))
6748645f
LMI		 3852 (ding)
3853 (unless (member keys nosave-in-article)
3854 (set-buffer gnus-article-current-summary))
3855 (call-interactively func)
3856 (setq new-sum-point (point)))
3857 (when (member keys nosave-but-article)
3858 (pop-to-buffer gnus-article-buffer 'norecord)))
eec82323
LMI		 3859 ;; These commands should restore window configuration.
3860 (let ((obuf (current-buffer))
6748645f
LMI		 3861 (owin (current-window-configuration))
3862 (opoint (point))
3863 (summary gnus-article-current-summary)
3864 func in-buffer selected)
3865 (if not-restore-window
3866 (pop-to-buffer summary 'norecord)
3867 (switch-to-buffer summary 'norecord))
3868 (setq in-buffer (current-buffer))
3869 ;; We disable the pick minor mode commands.
520aa572
SZ		 3870 (if (and (setq func (let (gnus-pick-mode)
3871 (lookup-key (current-local-map) keys)))
3872 (functionp func))
6748645f
LMI		 3873 (progn
3874 (call-interactively func)
520aa572
SZ		 3875 (setq new-sum-point (point))
3876 (when (eq in-buffer (current-buffer))
3877 (setq selected (gnus-summary-select-article))
3878 (set-buffer obuf)
3879 (unless not-restore-window
3880 (set-window-configuration owin))
3881 (when (eq selected 'old)
3882 (article-goto-body)
3883 (set-window-start (get-buffer-window (current-buffer))
3884 1)
3885 (set-window-point (get-buffer-window (current-buffer))
3886 (point)))
3887 (let ((win (get-buffer-window gnus-article-current-summary)))
3888 (when win
3889 (set-window-point win new-sum-point)))) )
3890 (switch-to-buffer gnus-article-buffer)
3891 (ding))))))
3892
3893(defun gnus-article-describe-key (key)
3894 "Display documentation of the function invoked by KEY. KEY is a string."
3895 (interactive "kDescribe key: ")
3896 (gnus-article-check-buffer)
3897 (if (eq (key-binding key) 'gnus-article-read-summary-keys)
3898 (save-excursion
3899 (set-buffer gnus-article-current-summary)
3900 (let (gnus-pick-mode)
3901 (push (elt key 0) unread-command-events)
3902 (setq key (if (featurep 'xemacs)
3903 (events-to-keys (read-key-sequence "Describe key: "))
3904 (read-key-sequence "Describe key: "))))
3905 (describe-key key))
3906 (describe-key key)))
3907
3908(defun gnus-article-describe-key-briefly (key &optional insert)
3909 "Display documentation of the function invoked by KEY. KEY is a string."
3910 (interactive "kDescribe key: \nP")
3911 (gnus-article-check-buffer)
3912 (if (eq (key-binding key) 'gnus-article-read-summary-keys)
3913 (save-excursion
3914 (set-buffer gnus-article-current-summary)
3915 (let (gnus-pick-mode)
3916 (push (elt key 0) unread-command-events)
3917 (setq key (if (featurep 'xemacs)
3918 (events-to-keys (read-key-sequence "Describe key: "))
3919 (read-key-sequence "Describe key: "))))
3920 (describe-key-briefly key insert))
3921 (describe-key-briefly key insert)))
eec82323
LMI		 3922
3923(defun gnus-article-hide (&optional arg force)
3924 "Hide all the gruft in the current article.
3925This means that PGP stuff, signatures, cited text and (some)
3926headers will be hidden.
3927If given a prefix, show the hidden text instead."
6748645f 3928 (interactive (append (gnus-article-hidden-arg) (list 'force)))
eec82323 3929 (gnus-article-hide-headers arg)
16409b0b 3930 (gnus-article-hide-list-identifiers arg)
eec82323
LMI		 3931 (gnus-article-hide-pgp arg)
3932 (gnus-article-hide-citation-maybe arg force)
3933 (gnus-article-hide-signature arg))
3934
3935(defun gnus-article-maybe-highlight ()
6748645f 3936 "Do some article highlighting if article highlighting is requested."
eec82323
LMI		 3937 (when (gnus-visual-p 'article-highlight 'highlight)
3938 (gnus-article-highlight-some)))
3939
6748645f
LMI		 3940(defun gnus-check-group-server ()
3941 ;; Make sure the connection to the server is alive.
3942 (unless (gnus-server-opened
3943 (gnus-find-method-for-group gnus-newsgroup-name))
3944 (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
3945 (gnus-request-group gnus-newsgroup-name t)))
3946
eec82323
LMI		 3947(defun gnus-request-article-this-buffer (article group)
3948 "Get an article and insert it into this buffer."
6748645f 3949 (let (do-update-line sparse-header)
eec82323
LMI		 3950 (prog1
3951 (save-excursion
3952 (erase-buffer)
3953 (gnus-kill-all-overlays)
3954 (setq group (or group gnus-newsgroup-name))
3955
eec82323
LMI		 3956 ;; Using `gnus-request-article' directly will insert the article into
3957 ;; `nntp-server-buffer' - so we'll save some time by not having to
3958 ;; copy it from the server buffer into the article buffer.
3959
3960 ;; We only request an article by message-id when we do not have the
3961 ;; headers for it, so we'll have to get those.
3962 (when (stringp article)
16409b0b 3963 (gnus-read-header article))
eec82323
LMI		 3964
3965 ;; If the article number is negative, that means that this article
3966 ;; doesn't belong in this newsgroup (possibly), so we find its
3967 ;; message-id and request it by id instead of number.
3968 (when (and (numberp article)
3969 gnus-summary-buffer
3970 (get-buffer gnus-summary-buffer)
6748645f 3971 (gnus-buffer-exists-p gnus-summary-buffer))
eec82323
LMI		 3972 (save-excursion
3973 (set-buffer gnus-summary-buffer)
3974 (let ((header (gnus-summary-article-header article)))
3975 (when (< article 0)
3976 (cond
3977 ((memq article gnus-newsgroup-sparse)
3978 ;; This is a sparse gap article.
3979 (setq do-update-line article)
3980 (setq article (mail-header-id header))
16409b0b 3981 (setq sparse-header (gnus-read-header article))
eec82323
LMI		 3982 (setq gnus-newsgroup-sparse
3983 (delq article gnus-newsgroup-sparse)))
3984 ((vectorp header)
3985 ;; It's a real article.
3986 (setq article (mail-header-id header)))
3987 (t
3988 ;; It is an extracted pseudo-article.
3989 (setq article 'pseudo)
3990 (gnus-request-pseudo-article header))))
3991
3992 (let ((method (gnus-find-method-for-group
3993 gnus-newsgroup-name)))
6748645f
LMI		 3994 (when (and (eq (car method) 'nneething)
3995 (vectorp header))
16409b0b
GM		 3996 (let ((dir (expand-file-name
3997 (mail-header-subject header)
6748645f
LMI		 3998 (file-name-as-directory
3999 (or (cadr (assq 'nneething-address method))
16409b0b 4000 (nth 1 method))))))
eec82323
LMI		 4001 (when (file-directory-p dir)
4002 (setq article 'nneething)
4003 (gnus-group-enter-directory dir))))))))
4004
4005 (cond
4006 ;; Refuse to select canceled articles.
4007 ((and (numberp article)
4008 gnus-summary-buffer
4009 (get-buffer gnus-summary-buffer)
6748645f 4010 (gnus-buffer-exists-p gnus-summary-buffer)
eec82323
LMI		 4011 (eq (cdr (save-excursion
4012 (set-buffer gnus-summary-buffer)
4013 (assq article gnus-newsgroup-reads)))
4014 gnus-canceled-mark))
4015 nil)
4016 ;; We first check `gnus-original-article-buffer'.
4017 ((and (get-buffer gnus-original-article-buffer)
4018 (numberp article)
4019 (save-excursion
4020 (set-buffer gnus-original-article-buffer)
4021 (and (equal (car gnus-original-article) group)
4022 (eq (cdr gnus-original-article) article))))
4023 (insert-buffer-substring gnus-original-article-buffer)
4024 'article)
4025 ;; Check the backlog.
4026 ((and gnus-keep-backlog
4027 (gnus-backlog-request-article group article (current-buffer)))
4028 'article)
4029 ;; Check asynchronous pre-fetch.
4030 ((gnus-async-request-fetched-article group article (current-buffer))
4031 (gnus-async-prefetch-next group article gnus-summary-buffer)
6748645f
LMI		 4032 (when (and (numberp article) gnus-keep-backlog)
4033 (gnus-backlog-enter-article group article (current-buffer)))
eec82323
LMI		 4034 'article)
4035 ;; Check the cache.
4036 ((and gnus-use-cache
4037 (numberp article)
4038 (gnus-cache-request-article article group))
4039 'article)
4040 ;; Get the article and put into the article buffer.
16409b0b
GM		 4041 ((or (stringp article)
4042 (numberp article))
4043 (let ((gnus-override-method gnus-override-method)
a1506d29 4044 (methods (and (stringp article)
16409b0b
GM		 4045 gnus-refer-article-method))
4046 result
eec82323 4047 (buffer-read-only nil))
e0bad764
DL		 4048 (if (or (not (listp methods))
4049 (and (symbolp (car methods))
4050 (assq (car methods) nnoo-definition-alist)))
4051 (setq methods (list methods)))
16409b0b
GM		 4052 (when (and (null gnus-override-method)
4053 methods)
4054 (setq gnus-override-method (pop methods)))
4055 (while (not result)
4056 (when (eq gnus-override-method 'current)
c55f89a5
GM		 4057 (setq gnus-override-method
4058 (with-current-buffer gnus-summary-buffer
4059 gnus-current-select-method)))
16409b0b
GM		 4060 (erase-buffer)
4061 (gnus-kill-all-overlays)
4062 (let ((gnus-newsgroup-name group))
4063 (gnus-check-group-server))
4064 (when (gnus-request-article article group (current-buffer))
4065 (when (numberp article)
a1506d29 4066 (gnus-async-prefetch-next group article
16409b0b
GM		 4067 gnus-summary-buffer)
4068 (when gnus-keep-backlog
4069 (gnus-backlog-enter-article
4070 group article (current-buffer))))
4071 (setq result 'article))
4072 (if (not result)
4073 (if methods
4074 (setq gnus-override-method (pop methods))
4075 (setq result 'done))))
4076 (and (eq result 'article) 'article)))
eec82323
LMI		 4077 ;; It was a pseudo.
4078 (t article)))
4079
6748645f
LMI		 4080 ;; Associate this article with the current summary buffer.
4081 (setq gnus-article-current-summary gnus-summary-buffer)
4082
eec82323
LMI		 4083 ;; Take the article from the original article buffer
4084 ;; and place it in the buffer it's supposed to be in.
4085 (when (and (get-buffer gnus-article-buffer)
eec82323
LMI		 4086 (equal (buffer-name (current-buffer))
4087 (buffer-name (get-buffer gnus-article-buffer))))
4088 (save-excursion
4089 (if (get-buffer gnus-original-article-buffer)
6748645f
LMI		 4090 (set-buffer gnus-original-article-buffer)
4091 (set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
16409b0b 4092 (buffer-disable-undo)
eec82323 4093 (setq major-mode 'gnus-original-article-mode)
6748645f 4094 (setq buffer-read-only t))
eec82323
LMI		 4095 (let (buffer-read-only)
4096 (erase-buffer)
4097 (insert-buffer-substring gnus-article-buffer))
16409b0b
GM		 4098 (setq gnus-original-article (cons group article)))
4099
4100 ;; Decode charsets.
4101 (run-hooks 'gnus-article-decode-hook)
4102 ;; Mark article as decoded or not.
4103 (setq gnus-article-decoded-p gnus-article-decode-hook))
eec82323
LMI		 4104
4105 ;; Update sparse articles.
4106 (when (and do-update-line
4107 (or (numberp article)
4108 (stringp article)))
4109 (let ((buf (current-buffer)))
4110 (set-buffer gnus-summary-buffer)
6748645f 4111 (gnus-summary-update-article do-update-line sparse-header)
eec82323
LMI		 4112 (gnus-summary-goto-subject do-update-line nil t)
4113 (set-window-point (get-buffer-window (current-buffer) t)
4114 (point))
4115 (set-buffer buf))))))
4116
4117;;;
4118;;; Article editing
4119;;;
4120
4121(defcustom gnus-article-edit-mode-hook nil
4122 "Hook run in article edit mode buffers."
4123 :group 'gnus-article-various
4124 :type 'hook)
4125
4126(defvar gnus-article-edit-done-function nil)
4127
4128(defvar gnus-article-edit-mode-map nil)
4129
16409b0b 4130;; Should we be using derived.el for this?
eec82323 4131(unless gnus-article-edit-mode-map
16409b0b
GM		 4132 (setq gnus-article-edit-mode-map (make-sparse-keymap))
4133 (set-keymap-parent gnus-article-edit-mode-map text-mode-map)
eec82323
LMI		 4134
4135 (gnus-define-keys gnus-article-edit-mode-map
4136 "\C-c\C-c" gnus-article-edit-done
4137 "\C-c\C-k" gnus-article-edit-exit)
4138
4139 (gnus-define-keys (gnus-article-edit-wash-map
4140 "\C-c\C-w" gnus-article-edit-mode-map)
4141 "f" gnus-article-edit-full-stops))
4142
80b47379 4143(define-derived-mode gnus-article-edit-mode text-mode "Article Edit"
eec82323
LMI		 4144 "Major mode for editing articles.
4145This is an extended text-mode.
4146
4147\\{gnus-article-edit-mode-map}"
eec82323
LMI		 4148 (make-local-variable 'gnus-article-edit-done-function)
4149 (make-local-variable 'gnus-prev-winconf)
80b47379
SZ		 4150 (set (make-local-variable 'font-lock-defaults)
4151 '(message-font-lock-keywords t))
eec82323
LMI		 4152 (setq buffer-read-only nil)
4153 (buffer-enable-undo)
80b47379 4154 (widen))
eec82323
LMI		 4155
4156(defun gnus-article-edit (&optional force)
4157 "Edit the current article.
4158This will have permanent effect only in mail groups.
4159If FORCE is non-nil, allow editing of articles even in read-only
4160groups."
4161 (interactive "P")
4162 (when (and (not force)
4163 (gnus-group-read-only-p))
a8151ef7 4164 (error "The current newsgroup does not support article editing"))
6748645f 4165 (gnus-article-date-original)
eec82323 4166 (gnus-article-edit-article
16409b0b 4167 'ignore
6748645f 4168 `(lambda (no-highlight)
16409b0b 4169 'ignore
eec82323
LMI		 4170 (gnus-summary-edit-article-done
4171 ,(or (mail-header-references gnus-current-headers) "")
6748645f 4172 ,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
eec82323 4173
16409b0b 4174(defun gnus-article-edit-article (start-func exit-func)
eec82323
LMI		 4175 "Start editing the contents of the current article buffer."
4176 (let ((winconf (current-window-configuration)))
4177 (set-buffer gnus-article-buffer)
4178 (gnus-article-edit-mode)
16409b0b 4179 (funcall start-func)
eec82323
LMI		 4180 (gnus-configure-windows 'edit-article)
4181 (setq gnus-article-edit-done-function exit-func)
4182 (setq gnus-prev-winconf winconf)
4183 (gnus-message 6 "C-c C-c to end edits")))
4184
6748645f 4185(defun gnus-article-edit-done (&optional arg)
eec82323 4186 "Update the article edits and exit."
6748645f 4187 (interactive "P")
bf6c5a8f 4188 (widen)
6748645f
LMI		 4189 (save-excursion
4190 (save-restriction
16409b0b 4191 (when (article-goto-body)
6748645f
LMI		 4192 (let ((lines (count-lines (point) (point-max)))
4193 (length (- (point-max) (point)))
4194 (case-fold-search t)
4195 (body (copy-marker (point))))
4196 (goto-char (point-min))
4197 (when (re-search-forward "^content-length:[ \t]\\([0-9]+\\)" body t)
4198 (delete-region (match-beginning 1) (match-end 1))
4199 (insert (number-to-string length)))
4200 (goto-char (point-min))
4201 (when (re-search-forward
4202 "^x-content-length:[ \t]\\([0-9]+\\)" body t)
4203 (delete-region (match-beginning 1) (match-end 1))
4204 (insert (number-to-string length)))
4205 (goto-char (point-min))
4206 (when (re-search-forward "^lines:[ \t]\\([0-9]+\\)" body t)
4207 (delete-region (match-beginning 1) (match-end 1))
4208 (insert (number-to-string lines)))))))
eec82323
LMI		 4209 (let ((func gnus-article-edit-done-function)
4210 (buf (current-buffer))
4211 (start (window-start)))
4212 (gnus-article-edit-exit)
4213 (save-excursion
4214 (set-buffer buf)
4215 (let ((buffer-read-only nil))
16409b0b
GM		 4216 (funcall func arg))
4217 ;; The cache and backlog have to be flushed somewhat.
4218 (when gnus-keep-backlog
4219 (gnus-backlog-remove-article
4220 (car gnus-article-current) (cdr gnus-article-current)))
4221 ;; Flush original article as well.
4222 (save-excursion
4223 (when (get-buffer gnus-original-article-buffer)
4224 (set-buffer gnus-original-article-buffer)
4225 (setq gnus-original-article nil)))
4226 (when gnus-use-cache
4227 (gnus-cache-update-article
4228 (car gnus-article-current) (cdr gnus-article-current))))
eec82323
LMI		 4229 (set-buffer buf)
4230 (set-window-start (get-buffer-window buf) start)
4231 (set-window-point (get-buffer-window buf) (point))))
4232
4233(defun gnus-article-edit-exit ()
4234 "Exit the article editing without updating."
4235 (interactive)
4236 ;; We remove all text props from the article buffer.
16409b0b 4237 (let ((buf (buffer-substring-no-properties (point-min) (point-max)))
eec82323
LMI		 4238 (curbuf (current-buffer))
4239 (p (point))
4240 (window-start (window-start)))
4241 (erase-buffer)
4242 (insert buf)
4243 (let ((winconf gnus-prev-winconf))
4244 (gnus-article-mode)
eec82323
LMI		 4245 (set-window-configuration winconf)
4246 ;; Tippy-toe some to make sure that point remains where it was.
16409b0b 4247 (save-current-buffer
eec82323
LMI		 4248 (set-buffer curbuf)
4249 (set-window-start (get-buffer-window (current-buffer)) window-start)
16409b0b 4250 (goto-char p)))))
eec82323
LMI		 4251
4252(defun gnus-article-edit-full-stops ()
4253 "Interactively repair spacing at end of sentences."
4254 (interactive)
4255 (save-excursion
4256 (goto-char (point-min))
4257 (search-forward-regexp "^$" nil t)
4258 (let ((case-fold-search nil))
4259 (query-replace-regexp "\\([.!?][])}]* \\)\\([[({A-Z]\\)" "\\1 \\2"))))
4260
4261;;;
4262;;; Article highlights
4263;;;
4264
4265;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
4266
4267;;; Internal Variables:
4268
a1506d29 4269(defcustom gnus-button-url-regexp
0076a86e
SZ		 4270 (if (string-match "[[:digit:]]" "1") ;; support POSIX?
4271 "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\|info\\):\\)\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?[-a-zA-Z0-9_=!?#$@~`%&*+|\\/:;.,[:word:]]+[-a-zA-Z0-9_=#$@~`%&*+|\\/[:word:]]\\)"
4272 "\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\|info\\):\\)\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?\\([-a-zA-Z0-9_=!?#$@~`%&*+|\\/:;.,]\\|\\w\\)+\\([-a-zA-Z0-9_=#$@~`%&*+|\\/]\\|\\w\\)\\)")
eec82323
LMI		 4273 "Regular expression that matches URLs."
4274 :group 'gnus-article-buttons
4275 :type 'regexp)
4276
4277(defcustom gnus-button-alist
16409b0b
GM		 4278 `(("<\\(url:[>\n\t ]*?\\)?news:[>\n\t ]*\\([^>\n\t ]*@[^>\n\t ]*\\)>"
4279 0 t gnus-button-message-id 2)
4280 ("\\bnews:\\([^>\n\t ]*@[^>)!;:,\n\t ]*\\)" 0 t gnus-button-message-id 1)
6748645f
LMI		 4281 ("\\(\\b<\\(url:[>\n\t ]*\\)?news:[>\n\t ]*\\(//\\)?\\([^>\n\t ]*\\)>\\)"
4282 1 t
eec82323 4283 gnus-button-fetch-group 4)
6748645f
LMI		 4284 ("\\bnews:\\(//\\)?\\([^'\">\n\t ]+\\)" 0 t gnus-button-fetch-group 2)
4285 ("\\bin\\( +article\\| +message\\)? +\\(<\\([^\n @<>]+@[^\n @<>]+\\)>\\)" 2
eec82323 4286 t gnus-button-message-id 3)
a8151ef7 4287 ("\\(<URL: *\\)mailto: *\\([^> \n\t]+\\)>" 0 t gnus-url-mailto 2)
16409b0b 4288 ("mailto:\\([-a-zA-Z.@_+0-9%]+\\)" 0 t gnus-url-mailto 1)
a8151ef7 4289 ("\\bmailto:\\([^ \n\t]+\\)" 0 t gnus-url-mailto 1)
eec82323 4290 ;; This is how URLs _should_ be embedded in text...
16409b0b 4291 ("<URL: *\\([^<>]*\\)>" 0 t gnus-button-embedded-url 1)
eec82323 4292 ;; Raw URLs.
16409b0b 4293 (,gnus-button-url-regexp 0 t browse-url 0))
6748645f 4294 "*Alist of regexps matching buttons in article bodies.
eec82323
LMI		 4295
4296Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
4297REGEXP: is the string matching text around the button,
4298BUTTON: is the number of the regexp grouping actually matching the button,
4299FORM: is a lisp expression which must eval to true for the button to
4300be added,
4301CALLBACK: is the function to call when the user push this button, and each
4302PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
4303
4304CALLBACK can also be a variable, in that case the value of that
4305variable it the real callback function."
4306 :group 'gnus-article-buttons
4307 :type '(repeat (list regexp
4308 (integer :tag "Button")
4309 (sexp :tag "Form")
4310 (function :tag "Callback")
4311 (repeat :tag "Par"
4312 :inline t
4313 (integer :tag "Regexp group")))))
4314
4315(defcustom gnus-header-button-alist
4316 `(("^\\(References\\|Message-I[Dd]\\):" "<[^>]+>"
4317 0 t gnus-button-message-id 0)
4318 ("^\\(From\\|Reply-To\\):" ": *\\(.+\\)$" 1 t gnus-button-reply 1)
4319 ("^\\(Cc\\|To\\):" "[^ \t\n<>,()\"]+@[^ \t\n<>,()\"]+"
4320 0 t gnus-button-mailto 0)
16409b0b
GM		 4321 ("^X-[Uu][Rr][Ll]:" ,gnus-button-url-regexp 0 t browse-url 0)
4322 ("^Subject:" ,gnus-button-url-regexp 0 t browse-url 0)
4323 ("^[^:]+:" ,gnus-button-url-regexp 0 t browse-url 0)
eec82323
LMI		 4324 ("^[^:]+:" "\\(<\\(url: \\)?news:\\([^>\n ]*\\)>\\)" 1 t
4325 gnus-button-message-id 3))
6748645f 4326 "*Alist of headers and regexps to match buttons in article heads.
eec82323
LMI		 4327
4328This alist is very similar to `gnus-button-alist', except that each
4329alist has an additional HEADER element first in each entry:
4330
4331\(HEADER REGEXP BUTTON FORM CALLBACK PAR)
4332
4333HEADER is a regexp to match a header. For a fuller explanation, see
4334`gnus-button-alist'."
4335 :group 'gnus-article-buttons
4336 :group 'gnus-article-headers
4337 :type '(repeat (list (regexp :tag "Header")
4338 regexp
4339 (integer :tag "Button")
4340 (sexp :tag "Form")
4341 (function :tag "Callback")
4342 (repeat :tag "Par"
4343 :inline t
4344 (integer :tag "Regexp group")))))
4345
4346(defvar gnus-button-regexp nil)
4347(defvar gnus-button-marker-list nil)
4348;; Regexp matching any of the regexps from `gnus-button-alist'.
4349
4350(defvar gnus-button-last nil)
4351;; The value of `gnus-button-alist' when `gnus-button-regexp' was build.
4352
4353;;; Commands:
4354
4355(defun gnus-article-push-button (event)
4356 "Check text under the mouse pointer for a callback function.
4357If the text under the mouse pointer has a `gnus-callback' property,
4358call it with the value of the `gnus-data' text property."
4359 (interactive "e")
4360 (set-buffer (window-buffer (posn-window (event-start event))))
4361 (let* ((pos (posn-point (event-start event)))
4362 (data (get-text-property pos 'gnus-data))
4363 (fun (get-text-property pos 'gnus-callback)))
6748645f 4364 (goto-char pos)
eec82323
LMI		 4365 (when fun
4366 (funcall fun data))))
4367
4368(defun gnus-article-press-button ()
4369 "Check text at point for a callback function.
4370If the text at point has a `gnus-callback' property,
4371call it with the value of the `gnus-data' text property."
4372 (interactive)
4373 (let* ((data (get-text-property (point) 'gnus-data))
4374 (fun (get-text-property (point) 'gnus-callback)))
4375 (when fun
4376 (funcall fun data))))
4377
eec82323
LMI		 4378(defun gnus-article-highlight (&optional force)
4379 "Highlight current article.
4380This function calls `gnus-article-highlight-headers',
4381`gnus-article-highlight-citation',
4382`gnus-article-highlight-signature', and `gnus-article-add-buttons' to
4383do the highlighting. See the documentation for those functions."
4384 (interactive (list 'force))
4385 (gnus-article-highlight-headers)
4386 (gnus-article-highlight-citation force)
4387 (gnus-article-highlight-signature)
4388 (gnus-article-add-buttons force)
4389 (gnus-article-add-buttons-to-head))
4390
4391(defun gnus-article-highlight-some (&optional force)
4392 "Highlight current article.
4393This function calls `gnus-article-highlight-headers',
4394`gnus-article-highlight-signature', and `gnus-article-add-buttons' to
4395do the highlighting. See the documentation for those functions."
4396 (interactive (list 'force))
4397 (gnus-article-highlight-headers)
4398 (gnus-article-highlight-signature)
4399 (gnus-article-add-buttons))
4400
4401(defun gnus-article-highlight-headers ()
4402 "Highlight article headers as specified by `gnus-header-face-alist'."
4403 (interactive)
4404 (save-excursion
4405 (set-buffer gnus-article-buffer)
4406 (save-restriction
4407 (let ((alist gnus-header-face-alist)
4408 (buffer-read-only nil)
4409 (case-fold-search t)
4410 (inhibit-point-motion-hooks t)
4411 entry regexp header-face field-face from hpoints fpoints)
16409b0b 4412 (article-narrow-to-head)
eec82323
LMI		 4413 (while (setq entry (pop alist))
4414 (goto-char (point-min))
4415 (setq regexp (concat "^\\("
4416 (if (string-equal "" (nth 0 entry))
4417 "[^\t ]"
4418 (nth 0 entry))
4419 "\\)")
4420 header-face (nth 1 entry)
4421 field-face (nth 2 entry))
4422 (while (and (re-search-forward regexp nil t)
4423 (not (eobp)))
4424 (beginning-of-line)
4425 (setq from (point))
4426 (unless (search-forward ":" nil t)
4427 (forward-char 1))
4428 (when (and header-face
4429 (not (memq (point) hpoints)))
4430 (push (point) hpoints)
4431 (gnus-put-text-property from (point) 'face header-face))
4432 (when (and field-face
4433 (not (memq (setq from (point)) fpoints)))
4434 (push from fpoints)
4435 (if (re-search-forward "^[^ \t]" nil t)
4436 (forward-char -2)
4437 (goto-char (point-max)))
4438 (gnus-put-text-property from (point) 'face field-face))))))))
4439
4440(defun gnus-article-highlight-signature ()
4441 "Highlight the signature in an article.
4442It does this by highlighting everything after
4443`gnus-signature-separator' using `gnus-signature-face'."
4444 (interactive)
4445 (save-excursion
4446 (set-buffer gnus-article-buffer)
4447 (let ((buffer-read-only nil)
4448 (inhibit-point-motion-hooks t))
4449 (save-restriction
4450 (when (and gnus-signature-face
4451 (gnus-article-narrow-to-signature))
4452 (gnus-overlay-put (gnus-make-overlay (point-min) (point-max))
4453 'face gnus-signature-face)
4454 (widen)
4455 (gnus-article-search-signature)
4456 (let ((start (match-beginning 0))
4457 (end (set-marker (make-marker) (1+ (match-end 0)))))
4458 (gnus-article-add-button start (1- end) 'gnus-signature-toggle
4459 end)))))))
4460
4461(defun gnus-button-in-region-p (b e prop)
4462 "Say whether PROP exists in the region."
4463 (text-property-not-all b e prop nil))
4464
4465(defun gnus-article-add-buttons (&optional force)
4466 "Find external references in the article and make buttons of them.
4467\"External references\" are things like Message-IDs and URLs, as
4468specified by `gnus-button-alist'."
4469 (interactive (list 'force))
4470 (save-excursion
4471 (set-buffer gnus-article-buffer)
4472 (let ((buffer-read-only nil)
4473 (inhibit-point-motion-hooks t)
4474 (case-fold-search t)
4475 (alist gnus-button-alist)
4476 beg entry regexp)
4477 ;; Remove all old markers.
16409b0b 4478 (let (marker entry new-list)
eec82323 4479 (while (setq marker (pop gnus-button-marker-list))
16409b0b
GM		 4480 (if (or (< marker (point-min)) (>= marker (point-max)))
4481 (push marker new-list)
4482 (goto-char marker)
4483 (when (setq entry (gnus-button-entry))
4484 (put-text-property (match-beginning (nth 1 entry))
4485 (match-end (nth 1 entry))
4486 'gnus-callback nil))
4487 (set-marker marker nil)))
4488 (setq gnus-button-marker-list new-list))
eec82323 4489 ;; We skip the headers.
16409b0b 4490 (article-goto-body)
eec82323
LMI		 4491 (setq beg (point))
4492 (while (setq entry (pop alist))
4493 (setq regexp (car entry))
4494 (goto-char beg)
4495 (while (re-search-forward regexp nil t)
4496 (let* ((start (and entry (match-beginning (nth 1 entry))))
4497 (end (and entry (match-end (nth 1 entry))))
4498 (from (match-beginning 0)))
4499 (when (and (or (eq t (nth 2 entry))
4500 (eval (nth 2 entry)))
4501 (not (gnus-button-in-region-p
4502 start end 'gnus-callback)))
4503 ;; That optional form returned non-nil, so we add the
4504 ;; button.
4505 (gnus-article-add-button
4506 start end 'gnus-button-push
4507 (car (push (set-marker (make-marker) from)
4508 gnus-button-marker-list))))))))))
4509
4510;; Add buttons to the head of an article.
4511(defun gnus-article-add-buttons-to-head ()
4512 "Add buttons to the head of the article."
4513 (interactive)
4514 (save-excursion
4515 (set-buffer gnus-article-buffer)
16409b0b
GM		 4516 (save-restriction
4517 (let ((buffer-read-only nil)
4518 (inhibit-point-motion-hooks t)
4519 (case-fold-search t)
4520 (alist gnus-header-button-alist)
4521 entry beg end)
4522 (article-narrow-to-head)
4523 (while alist
4524 ;; Each alist entry.
4525 (setq entry (car alist)
4526 alist (cdr alist))
4527 (goto-char (point-min))
4528 (while (re-search-forward (car entry) nil t)
4529 ;; Each header matching the entry.
4530 (setq beg (match-beginning 0))
4531 (setq end (or (and (re-search-forward "^[^ \t]" nil t)
4532 (match-beginning 0))
4533 (point-max)))
4534 (goto-char beg)
4535 (while (re-search-forward (nth 1 entry) end t)
4536 ;; Each match within a header.
4537 (let* ((entry (cdr entry))
4538 (start (match-beginning (nth 1 entry)))
4539 (end (match-end (nth 1 entry)))
4540 (form (nth 2 entry)))
4541 (goto-char (match-end 0))
4542 (when (eval form)
4543 (gnus-article-add-button
4544 start end (nth 3 entry)
4545 (buffer-substring (match-beginning (nth 4 entry))
4546 (match-end (nth 4 entry)))))))
4547 (goto-char end)))))))
eec82323
LMI		 4548
4549;;; External functions:
4550
4551(defun gnus-article-add-button (from to fun &optional data)
4552 "Create a button between FROM and TO with callback FUN and data DATA."
4553 (when gnus-article-button-face
4554 (gnus-overlay-put (gnus-make-overlay from to)
4555 'face gnus-article-button-face))
4556 (gnus-add-text-properties
4557 from to
4558 (nconc (and gnus-article-mouse-face
4559 (list gnus-mouse-face-prop gnus-article-mouse-face))
4560 (list 'gnus-callback fun)
16409b0b
GM		 4561 (and data (list 'gnus-data data))))
4562 (widget-convert-button 'link from to :action 'gnus-widget-press-button
4563 :button-keymap gnus-widget-button-keymap))
eec82323
LMI		 4564
4565;;; Internal functions:
4566
a8151ef7
LMI		 4567(defun gnus-article-set-globals ()
4568 (save-excursion
4569 (set-buffer gnus-summary-buffer)
4570 (gnus-set-global-variables)))
4571
eec82323
LMI		 4572(defun gnus-signature-toggle (end)
4573 (save-excursion
4574 (set-buffer gnus-article-buffer)
4575 (let ((buffer-read-only nil)
4576 (inhibit-point-motion-hooks t))
520aa572
SZ		 4577 (if (text-property-any end (point-max) 'article-type 'signature)
4578 (gnus-remove-text-properties-when
4579 'article-type 'signature end (point-max)
4580 (cons 'article-type (cons 'signature
4581 gnus-hidden-properties)))
4582 (gnus-add-text-properties-when
4583 'article-type nil end (point-max)
4584 (cons 'article-type (cons 'signature
4585 gnus-hidden-properties)))))))
eec82323
LMI		 4586
4587(defun gnus-button-entry ()
4588 ;; Return the first entry in `gnus-button-alist' matching this place.
4589 (let ((alist gnus-button-alist)
4590 (entry nil))
4591 (while alist
4592 (setq entry (pop alist))
4593 (if (looking-at (car entry))
4594 (setq alist nil)
4595 (setq entry nil)))
4596 entry))
4597
4598(defun gnus-button-push (marker)
4599 ;; Push button starting at MARKER.
4600 (save-excursion
eec82323
LMI		 4601 (goto-char marker)
4602 (let* ((entry (gnus-button-entry))
4603 (inhibit-point-motion-hooks t)
4604 (fun (nth 3 entry))
4605 (args (mapcar (lambda (group)
4606 (let ((string (match-string group)))
4607 (gnus-set-text-properties
4608 0 (length string) nil string)
4609 string))
4610 (nthcdr 4 entry))))
4611 (cond
4612 ((fboundp fun)
4613 (apply fun args))
4614 ((and (boundp fun)
4615 (fboundp (symbol-value fun)))
4616 (apply (symbol-value fun) args))
4617 (t
4618 (gnus-message 1 "You must define `%S' to use this button"
4619 (cons fun args)))))))
4620
4621(defun gnus-button-message-id (message-id)
4622 "Fetch MESSAGE-ID."
4623 (save-excursion
4624 (set-buffer gnus-summary-buffer)
4625 (gnus-summary-refer-article message-id)))
4626
4627(defun gnus-button-fetch-group (address)
4628 "Fetch GROUP specified by ADDRESS."
4629 (if (not (string-match "[:/]" address))
4630 ;; This is just a simple group url.
4631 (gnus-group-read-ephemeral-group address gnus-select-method)
4632 (if (not (string-match "^\\([^:/]+\\)\\(:\\([^/]+\\)/\\)?\\(.*\\)$"
4633 address))
4634 (error "Can't parse %s" address)
4635 (gnus-group-read-ephemeral-group
4636 (match-string 4 address)
4637 `(nntp ,(match-string 1 address)
4638 (nntp-address ,(match-string 1 address))
4639 (nntp-port-number ,(if (match-end 3)
4640 (match-string 3 address)
4641 "nntp")))))))
4642
eec82323
LMI		 4643(defun gnus-url-parse-query-string (query &optional downcase)
4644 (let (retval pairs cur key val)
16409b0b 4645 (setq pairs (split-string query "&"))
eec82323
LMI		 4646 (while pairs
4647 (setq cur (car pairs)
4648 pairs (cdr pairs))
4649 (if (not (string-match "=" cur))
4650 nil ; Grace
4651 (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
4652 val (gnus-url-unhex-string (substring cur (match-end 0) nil)))
4653 (if downcase
4654 (setq key (downcase key)))
4655 (setq cur (assoc key retval))
4656 (if cur
4657 (setcdr cur (cons val (cdr cur)))
4658 (setq retval (cons (list key val) retval)))))
4659 retval))
4660
4661(defun gnus-url-unhex (x)
4662 (if (> x ?9)
4663 (if (>= x ?a)
4664 (+ 10 (- x ?a))
4665 (+ 10 (- x ?A)))
4666 (- x ?0)))
4667
4668(defun gnus-url-unhex-string (str &optional allow-newlines)
4669 "Remove %XXX embedded spaces, etc in a url.
4670If optional second argument ALLOW-NEWLINES is non-nil, then allow the
4671decoding of carriage returns and line feeds in the string, which is normally
4672forbidden in URL encoding."
4673 (setq str (or str ""))
4674 (let ((tmp "")
4675 (case-fold-search t))
4676 (while (string-match "%[0-9a-f][0-9a-f]" str)
4677 (let* ((start (match-beginning 0))
4678 (ch1 (gnus-url-unhex (elt str (+ start 1))))
4679 (code (+ (* 16 ch1)
4680 (gnus-url-unhex (elt str (+ start 2))))))
4681 (setq tmp (concat
4682 tmp (substring str 0 start)
4683 (cond
4684 (allow-newlines
4685 (char-to-string code))
4686 ((or (= code ?\n) (= code ?\r))
4687 " ")
4688 (t (char-to-string code))))
4689 str (substring str (match-end 0)))))
4690 (setq tmp (concat tmp str))
4691 tmp))
4692
4693(defun gnus-url-mailto (url)
4694 ;; Send mail to someone
4695 (when (string-match "mailto:/*\\(.*\\)" url)
4696 (setq url (substring url (match-beginning 1) nil)))
6748645f 4697 (let (to args subject func)
eec82323
LMI		 4698 (if (string-match (regexp-quote "?") url)
4699 (setq to (gnus-url-unhex-string (substring url 0 (match-beginning 0)))
4700 args (gnus-url-parse-query-string
4701 (substring url (match-end 0) nil) t))
4702 (setq to (gnus-url-unhex-string url)))
4703 (setq args (cons (list "to" to) args)
4704 subject (cdr-safe (assoc "subject" args)))
4705 (message-mail)
4706 (while args
4707 (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
4708 (if (fboundp func)
4709 (funcall func)
4710 (message-position-on-field (caar args)))
4711 (insert (mapconcat 'identity (cdar args) ", "))
4712 (setq args (cdr args)))
4713 (if subject
4714 (message-goto-body)
4715 (message-goto-subject))))
4716
4717(defun gnus-button-mailto (address)
e0bad764 4718 "Mail to ADDRESS."
eec82323
LMI		 4719 (set-buffer (gnus-copy-article-buffer))
4720 (message-reply address))
4721
e0bad764 4722(defalias 'gnus-button-reply 'message-reply)
eec82323 4723
eec82323 4724(defun gnus-button-embedded-url (address)
e0bad764 4725 "Activate ADDRESS with `browse-url'."
1b978bfc 4726 (browse-url (gnus-strip-whitespace address)))
eec82323
LMI		 4727
4728;;; Next/prev buttons in the article buffer.
4729
4730(defvar gnus-next-page-line-format "%{%(Next page...%)%}\n")
4731(defvar gnus-prev-page-line-format "%{%(Previous page...%)%}\n")
4732
4733(defvar gnus-prev-page-map nil)
4734(unless gnus-prev-page-map
4735 (setq gnus-prev-page-map (make-sparse-keymap))
4736 (define-key gnus-prev-page-map gnus-mouse-2 'gnus-button-prev-page)
4737 (define-key gnus-prev-page-map "\r" 'gnus-button-prev-page))
4738
4739(defun gnus-insert-prev-page-button ()
4740 (let ((buffer-read-only nil))
4741 (gnus-eval-format
4742 gnus-prev-page-line-format nil
4743 `(gnus-prev t local-map ,gnus-prev-page-map
6748645f 4744 gnus-callback gnus-article-button-prev-page
16409b0b 4745 article-type annotation))))
eec82323
LMI		 4746
4747(defvar gnus-next-page-map nil)
4748(unless gnus-next-page-map
4749 (setq gnus-next-page-map (make-keymap))
4750 (suppress-keymap gnus-prev-page-map)
4751 (define-key gnus-next-page-map gnus-mouse-2 'gnus-button-next-page)
4752 (define-key gnus-next-page-map "\r" 'gnus-button-next-page))
4753
4754(defun gnus-button-next-page ()
4755 "Go to the next page."
4756 (interactive)
4757 (let ((win (selected-window)))
4758 (select-window (get-buffer-window gnus-article-buffer t))
4759 (gnus-article-next-page)
4760 (select-window win)))
4761
4762(defun gnus-button-prev-page ()
4763 "Go to the prev page."
4764 (interactive)
4765 (let ((win (selected-window)))
4766 (select-window (get-buffer-window gnus-article-buffer t))
4767 (gnus-article-prev-page)
4768 (select-window win)))
4769
4770(defun gnus-insert-next-page-button ()
4771 (let ((buffer-read-only nil))
4772 (gnus-eval-format gnus-next-page-line-format nil
6748645f
LMI		 4773 `(gnus-next
4774 t local-map ,gnus-next-page-map
4775 gnus-callback gnus-article-button-next-page
16409b0b 4776 article-type annotation))))
eec82323
LMI		 4777
4778(defun gnus-article-button-next-page (arg)
4779 "Go to the next page."
4780 (interactive "P")
4781 (let ((win (selected-window)))
4782 (select-window (get-buffer-window gnus-article-buffer t))
4783 (gnus-article-next-page)
4784 (select-window win)))
4785
4786(defun gnus-article-button-prev-page (arg)
4787 "Go to the prev page."
4788 (interactive "P")
4789 (let ((win (selected-window)))
4790 (select-window (get-buffer-window gnus-article-buffer t))
4791 (gnus-article-prev-page)
4792 (select-window win)))
4793
16409b0b
GM		 4794(defvar gnus-decode-header-methods
4795 '(mail-decode-encoded-word-region)
4796 "List of methods used to decode headers.
4797
4798This variable is a list of FUNCTION or (REGEXP . FUNCTION). If item
4799is FUNCTION, FUNCTION will be apply to all newsgroups. If item is a
8f688cb0 4800\(REGEXP . FUNCTION), FUNCTION will be only apply to these newsgroups
16409b0b
GM		 4801whose names match REGEXP.
4802
4803For example:
8f688cb0 4804\((\"chinese\" . gnus-decode-encoded-word-region-by-guess)
16409b0b
GM		 4805 mail-decode-encoded-word-region
4806 (\"chinese\" . rfc1843-decode-region))
4807")
4808
4809(defvar gnus-decode-header-methods-cache nil)
4810
4811(defun gnus-multi-decode-header (start end)
4812 "Apply the functions from `gnus-encoded-word-methods' that match."
4813 (unless (and gnus-decode-header-methods-cache
4814 (eq gnus-newsgroup-name
4815 (car gnus-decode-header-methods-cache)))
4816 (setq gnus-decode-header-methods-cache (list gnus-newsgroup-name))
4817 (mapcar (lambda (x)
4818 (if (symbolp x)
4819 (nconc gnus-decode-header-methods-cache (list x))
4820 (if (and gnus-newsgroup-name
4821 (string-match (car x) gnus-newsgroup-name))
4822 (nconc gnus-decode-header-methods-cache
4823 (list (cdr x))))))
4824 gnus-decode-header-methods))
4825 (let ((xlist gnus-decode-header-methods-cache))
4826 (pop xlist)
4827 (save-restriction
4828 (narrow-to-region start end)
4829 (while xlist
4830 (funcall (pop xlist) (point-min) (point-max))))))
4831
4832;;;
4833;;; Treatment top-level handling.
4834;;;
4835
4836(defun gnus-treat-article (condition &optional part-number total-parts type)
4837 (let ((length (- (point-max) (point-min)))
4838 (alist gnus-treatment-function-alist)
4839 (article-goto-body-goes-to-point-min-p t)
4840 (treated-type
4841 (or (not type)
4842 (catch 'found
4843 (let ((list gnus-article-treat-types))
4844 (while list
4845 (when (string-match (pop list) type)
4846 (throw 'found t)))))))
4847 (highlightp (gnus-visual-p 'article-highlight 'highlight))
4848 val elem)
4849 (gnus-run-hooks 'gnus-part-display-hook)
4850 (while (setq elem (pop alist))
4851 (setq val
4852 (save-excursion
4853 (if (gnus-buffer-live-p gnus-summary-buffer)
4854 (set-buffer gnus-summary-buffer))
4855 (symbol-value (car elem))))
4856 (when (and (or (consp val)
4857 treated-type)
4858 (gnus-treat-predicate val)
4859 (or (not (get (car elem) 'highlight))
4860 highlightp))
4861 (save-restriction
4862 (funcall (cadr elem)))))))
4863
4864;; Dynamic variables.
e0bad764
DL		 4865(eval-when-compile
4866 (defvar part-number)
4867 (defvar total-parts)
4868 (defvar type)
4869 (defvar condition)
4870 (defvar length))
4871
16409b0b
GM		 4872(defun gnus-treat-predicate (val)
4873 (cond
4874 ((null val)
4875 nil)
4876 ((and (listp val)
4877 (stringp (car val)))
4878 (apply 'gnus-or (mapcar `(lambda (s)
4879 (string-match s ,(or gnus-newsgroup-name "")))
4880 val)))
4881 ((listp val)
4882 (let ((pred (pop val)))
4883 (cond
4884 ((eq pred 'or)
4885 (apply 'gnus-or (mapcar 'gnus-treat-predicate val)))
4886 ((eq pred 'and)
4887 (apply 'gnus-and (mapcar 'gnus-treat-predicate val)))
4888 ((eq pred 'not)
4889 (not (gnus-treat-predicate (car val))))
4890 ((eq pred 'typep)
4891 (equal (car val) type))
4892 (t
4893 (error "%S is not a valid predicate" pred)))))
4894 (condition
4895 (eq condition val))
4896 ((eq val t)
4897 t)
4898 ((eq val 'head)
4899 nil)
4900 ((eq val 'last)
4901 (eq part-number total-parts))
4902 ((numberp val)
4903 (< length val))
4904 (t
4905 (error "%S is not a valid value" val))))
4906
eec82323
LMI		 4907(gnus-ems-redefine)
4908
4909(provide 'gnus-art)
4910
4911(run-hooks 'gnus-art-load-hook)
4912
ab5796a9 4913;;; arch-tag: 2654516f-6279-48f9-a83b-05c1fa450c33
eec82323 4914;;; gnus-art.el ends here
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