lisp/gnus/gnus.el

   1 ;;; gnus.el --- a newsreader for GNU Emacs
   2
   3 ;; Copyright (C) 1987, 1988, 1989, 1990, 1993, 1994, 1995, 1996, 1997, 1998,
   4 ;;   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
   5 ;;   Free Software Foundation, Inc.
   6
   7 ;; Author: Masanobu UMEDA <umerin@flab.flab.fujitsu.junet>
   8 ;;      Lars Magne Ingebrigtsen <larsi@gnus.org>
   9 ;; Keywords: news, mail
  10 ;; Version: 5.13
  11
  12 ;; This file is part of GNU Emacs.
  13
  14 ;; GNU Emacs is free software: you can redistribute it and/or modify
  15 ;; it under the terms of the GNU General Public License as published by
  16 ;; the Free Software Foundation, either version 3 of the License, or
  17 ;; (at your option) any later version.
  18
  19 ;; GNU Emacs is distributed in the hope that it will be useful,
  20 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22 ;; GNU General Public License for more details.
  23
  24 ;; You should have received a copy of the GNU General Public License
  25 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  26
  27 ;;; Commentary:
  28
  29 ;;; Code:
  30
  31 (eval '(run-hooks 'gnus-load-hook))
  32
  33 ;; For Emacs < 22.2.
  34 (eval-and-compile
  35   (unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
  36
  37 (eval-when-compile (require 'cl))
  38 (require 'wid-edit)
  39 (require 'mm-util)
  40 (require 'nnheader)
  41
  42 ;; These are defined afterwards with gnus-define-group-parameter
  43 (defvar gnus-ham-process-destinations)
  44 (defvar gnus-parameter-ham-marks-alist)
  45 (defvar gnus-parameter-spam-marks-alist)
  46 (defvar gnus-spam-autodetect)
  47 (defvar gnus-spam-autodetect-methods)
  48 (defvar gnus-spam-newsgroup-contents)
  49 (defvar gnus-spam-process-destinations)
  50 (defvar gnus-spam-resend-to)
  51 (defvar gnus-ham-resend-to)
  52 (defvar gnus-spam-process-newsgroups)
  53
  54
  55 (defgroup gnus nil
  56   "The coffee-brewing, all singing, all dancing, kitchen sink newsreader."
  57   :group 'news
  58   :group 'mail)
  59
  60 (defgroup gnus-start nil
  61   "Starting your favorite newsreader."
  62   :group 'gnus)
  63
  64 (defgroup gnus-format nil
  65   "Dealing with formatting issues."
  66   :group 'gnus)
  67
  68 (defgroup gnus-charset nil
  69   "Group character set issues."
  70   :link '(custom-manual "(gnus)Charsets")
  71   :version "21.1"
  72   :group 'gnus)
  73
  74 (defgroup gnus-cache nil
  75   "Cache interface."
  76   :link '(custom-manual "(gnus)Article Caching")
  77   :group 'gnus)
  78
  79 (defgroup gnus-registry nil
  80   "Article Registry."
  81   :group 'gnus)
  82
  83 (defgroup gnus-start-server nil
  84   "Server options at startup."
  85   :group 'gnus-start)
  86
  87 ;; These belong to gnus-group.el.
  88 (defgroup gnus-group nil
  89   "Group buffers."
  90   :link '(custom-manual "(gnus)Group Buffer")
  91   :group 'gnus)
  92
  93 (defgroup gnus-group-foreign nil
  94   "Foreign groups."
  95   :link '(custom-manual "(gnus)Foreign Groups")
  96   :group 'gnus-group)
  97
  98 (defgroup gnus-group-new nil
  99   "Automatic subscription of new groups."
 100   :group 'gnus-group)
 101
 102 (defgroup gnus-group-levels nil
 103   "Group levels."
 104   :link '(custom-manual "(gnus)Group Levels")
 105   :group 'gnus-group)
 106
 107 (defgroup gnus-group-select nil
 108   "Selecting a Group."
 109   :link '(custom-manual "(gnus)Selecting a Group")
 110   :group 'gnus-group)
 111
 112 (defgroup gnus-group-listing nil
 113   "Showing slices of the group list."
 114   :link '(custom-manual "(gnus)Listing Groups")
 115   :group 'gnus-group)
 116
 117 (defgroup gnus-group-visual nil
 118   "Sorting the group buffer."
 119   :link '(custom-manual "(gnus)Group Buffer Format")
 120   :group 'gnus-group
 121   :group 'gnus-visual)
 122
 123 (defgroup gnus-group-various nil
 124   "Various group options."
 125   :link '(custom-manual "(gnus)Scanning New Messages")
 126   :group 'gnus-group)
 127
 128 ;; These belong to gnus-sum.el.
 129 (defgroup gnus-summary nil
 130   "Summary buffers."
 131   :link '(custom-manual "(gnus)Summary Buffer")
 132   :group 'gnus)
 133
 134 (defgroup gnus-summary-exit nil
 135   "Leaving summary buffers."
 136   :link '(custom-manual "(gnus)Exiting the Summary Buffer")
 137   :group 'gnus-summary)
 138
 139 (defgroup gnus-summary-marks nil
 140   "Marks used in summary buffers."
 141   :link '(custom-manual "(gnus)Marking Articles")
 142   :group 'gnus-summary)
 143
 144 (defgroup gnus-thread nil
 145   "Ordering articles according to replies."
 146   :link '(custom-manual "(gnus)Threading")
 147   :group 'gnus-summary)
 148
 149 (defgroup gnus-summary-format nil
 150   "Formatting of the summary buffer."
 151   :link '(custom-manual "(gnus)Summary Buffer Format")
 152   :group 'gnus-summary)
 153
 154 (defgroup gnus-summary-choose nil
 155   "Choosing Articles."
 156   :link '(custom-manual "(gnus)Choosing Articles")
 157   :group 'gnus-summary)
 158
 159 (defgroup gnus-summary-maneuvering nil
 160   "Summary movement commands."
 161   :link '(custom-manual "(gnus)Summary Maneuvering")
 162   :group 'gnus-summary)
 163
 164 (defgroup gnus-picon nil
 165   "Show pictures of people, domains, and newsgroups."
 166   :group 'gnus-visual)
 167
 168 (defgroup gnus-summary-mail nil
 169   "Mail group commands."
 170   :link '(custom-manual "(gnus)Mail Group Commands")
 171   :group 'gnus-summary)
 172
 173 (defgroup gnus-summary-sort nil
 174   "Sorting the summary buffer."
 175   :link '(custom-manual "(gnus)Sorting the Summary Buffer")
 176   :group 'gnus-summary)
 177
 178 (defgroup gnus-summary-visual nil
 179   "Highlighting and menus in the summary buffer."
 180   :link '(custom-manual "(gnus)Summary Highlighting")
 181   :group 'gnus-visual
 182   :group 'gnus-summary)
 183
 184 (defgroup gnus-summary-various nil
 185   "Various summary buffer options."
 186   :link '(custom-manual "(gnus)Various Summary Stuff")
 187   :group 'gnus-summary)
 188
 189 (defgroup gnus-summary-pick nil
 190   "Pick mode in the summary buffer."
 191   :link '(custom-manual "(gnus)Pick and Read")
 192   :prefix "gnus-pick-"
 193   :group 'gnus-summary)
 194
 195 (defgroup gnus-summary-tree nil
 196   "Tree display of threads in the summary buffer."
 197   :link '(custom-manual "(gnus)Tree Display")
 198   :prefix "gnus-tree-"
 199   :group 'gnus-summary)
 200
 201 ;; Belongs to gnus-uu.el
 202 (defgroup gnus-extract-view nil
 203   "Viewing extracted files."
 204   :link '(custom-manual "(gnus)Viewing Files")
 205   :group 'gnus-extract)
 206
 207 ;; Belongs to gnus-score.el
 208 (defgroup gnus-score nil
 209   "Score and kill file handling."
 210   :group 'gnus)
 211
 212 (defgroup gnus-score-kill nil
 213   "Kill files."
 214   :group 'gnus-score)
 215
 216 (defgroup gnus-score-adapt nil
 217   "Adaptive score files."
 218   :group 'gnus-score)
 219
 220 (defgroup gnus-score-default nil
 221   "Default values for score files."
 222   :group 'gnus-score)
 223
 224 (defgroup gnus-score-expire nil
 225   "Expiring score rules."
 226   :group 'gnus-score)
 227
 228 (defgroup gnus-score-decay nil
 229   "Decaying score rules."
 230   :group 'gnus-score)
 231
 232 (defgroup gnus-score-files nil
 233   "Score and kill file names."
 234   :group 'gnus-score
 235   :group 'gnus-files)
 236
 237 (defgroup gnus-score-various nil
 238   "Various scoring and killing options."
 239   :group 'gnus-score)
 240
 241 ;; Other
 242 (defgroup gnus-visual nil
 243   "Options controlling the visual fluff."
 244   :group 'gnus
 245   :group 'faces)
 246
 247 (defgroup gnus-agent nil
 248   "Offline support for Gnus."
 249   :group 'gnus)
 250
 251 (defgroup gnus-files nil
 252   "Files used by Gnus."
 253   :group 'gnus)
 254
 255 (defgroup gnus-dribble-file nil
 256   "Auto save file."
 257   :link '(custom-manual "(gnus)Auto Save")
 258   :group 'gnus-files)
 259
 260 (defgroup gnus-newsrc nil
 261   "Storing Gnus state."
 262   :group 'gnus-files)
 263
 264 (defgroup gnus-server nil
 265   "Options related to newsservers and other servers used by Gnus."
 266   :group 'gnus)
 267
 268 (defgroup gnus-server-visual nil
 269   "Highlighting and menus in the server buffer."
 270   :group 'gnus-visual
 271   :group 'gnus-server)
 272
 273 (defgroup gnus-message '((message custom-group))
 274   "Composing replies and followups in Gnus."
 275   :group 'gnus)
 276
 277 (defgroup gnus-meta nil
 278   "Meta variables controlling major portions of Gnus.
 279 In general, modifying these variables does not take affect until Gnus
 280 is restarted, and sometimes reloaded."
 281   :group 'gnus)
 282
 283 (defgroup gnus-various nil
 284   "Other Gnus options."
 285   :link '(custom-manual "(gnus)Various Various")
 286   :group 'gnus)
 287
 288 (defgroup gnus-exit nil
 289   "Exiting Gnus."
 290   :link '(custom-manual "(gnus)Exiting Gnus")
 291   :group 'gnus)
 292
 293 (defgroup gnus-fun nil
 294   "Frivolous Gnus extensions."
 295   :link '(custom-manual "(gnus)Exiting Gnus")
 296   :group 'gnus)
 297
 298 (defconst gnus-version-number "5.13"
 299   "Version number for this version of Gnus.")
 300
 301 (defconst gnus-version (format "Gnus v%s" gnus-version-number)
 302   "Version string for this version of Gnus.")
 303
 304 (defcustom gnus-inhibit-startup-message nil
 305   "If non-nil, the startup message will not be displayed.
 306 This variable is used before `.gnus.el' is loaded, so it should
 307 be set in `.emacs' instead."
 308   :group 'gnus-start
 309   :type 'boolean)
 310
 311 (defcustom gnus-play-startup-jingle nil
 312   "If non-nil, play the Gnus jingle at startup."
 313   :group 'gnus-start
 314   :type 'boolean)
 315
 316 (unless (fboundp 'gnus-group-remove-excess-properties)
 317   (defalias 'gnus-group-remove-excess-properties 'ignore))
 318
 319 (unless (featurep 'gnus-xmas)
 320   (defalias 'gnus-make-overlay 'make-overlay)
 321   (defalias 'gnus-delete-overlay 'delete-overlay)
 322   (defalias 'gnus-overlay-get 'overlay-get)
 323   (defalias 'gnus-overlay-put 'overlay-put)
 324   (defalias 'gnus-move-overlay 'move-overlay)
 325   (defalias 'gnus-overlay-buffer 'overlay-buffer)
 326   (defalias 'gnus-overlay-start 'overlay-start)
 327   (defalias 'gnus-overlay-end 'overlay-end)
 328   (defalias 'gnus-overlays-in 'overlays-in)
 329   (defalias 'gnus-extent-detached-p 'ignore)
 330   (defalias 'gnus-extent-start-open 'ignore)
 331   (defalias 'gnus-mail-strip-quoted-names 'mail-strip-quoted-names)
 332   (defalias 'gnus-character-to-event 'identity)
 333   (defalias 'gnus-assq-delete-all 'assq-delete-all)
 334   (defalias 'gnus-add-text-properties 'add-text-properties)
 335   (defalias 'gnus-put-text-property 'put-text-property)
 336   (defvar gnus-mode-line-image-cache t)
 337   (if (fboundp 'find-image)
 338       (defun gnus-mode-line-buffer-identification (line)
 339         (let ((str (car-safe line))
 340               (load-path (mm-image-load-path)))
 341           (if (and (stringp str)
 342                    (string-match "^Gnus:" str))
 343               (progn (add-text-properties
 344                       0 5
 345                       (list 'display
 346                             (if (eq t gnus-mode-line-image-cache)
 347                                 (setq gnus-mode-line-image-cache
 348                                       (find-image
 349                                        '((:type xpm :file "gnus-pointer.xpm"
 350                                                 :ascent center)
 351                                          (:type xbm :file "gnus-pointer.xbm"
 352                                                 :ascent center))))
 353                               gnus-mode-line-image-cache)
 354                             'help-echo (format
 355                                         "This is %s, %s."
 356                                         gnus-version (gnus-emacs-version)))
 357                       str)
 358                      (list str))
 359             line)))
 360     (defalias 'gnus-mode-line-buffer-identification 'identity))
 361   (defalias 'gnus-characterp 'numberp)
 362   (defalias 'gnus-deactivate-mark 'deactivate-mark)
 363   (defalias 'gnus-window-edges 'window-edges)
 364   (defalias 'gnus-key-press-event-p 'numberp)
 365   ;;(defalias 'gnus-decode-rfc1522 'ignore)
 366   )
 367
 368 ;; We define these group faces here to avoid the display
 369 ;; update forced when creating new faces.
 370
 371 (defface gnus-group-news-1
 372   '((((class color)
 373       (background dark))
 374      (:foreground "PaleTurquoise" :bold t))
 375     (((class color)
 376       (background light))
 377      (:foreground "ForestGreen" :bold t))
 378     (t
 379      ()))
 380   "Level 1 newsgroup face."
 381   :group 'gnus-group)
 382 ;; backward-compatibility alias
 383 (put 'gnus-group-news-1-face 'face-alias 'gnus-group-news-1)
 384 (put 'gnus-group-news-1-face 'obsolete-face "22.1")
 385
 386 (defface gnus-group-news-1-empty
 387   '((((class color)
 388       (background dark))
 389      (:foreground "PaleTurquoise"))
 390     (((class color)
 391       (background light))
 392      (:foreground "ForestGreen"))
 393     (t
 394      ()))
 395   "Level 1 empty newsgroup face."
 396   :group 'gnus-group)
 397 ;; backward-compatibility alias
 398 (put 'gnus-group-news-1-empty-face 'face-alias 'gnus-group-news-1-empty)
 399 (put 'gnus-group-news-1-empty-face 'obsolete-face "22.1")
 400
 401 (defface gnus-group-news-2
 402   '((((class color)
 403       (background dark))
 404      (:foreground "turquoise" :bold t))
 405     (((class color)
 406       (background light))
 407      (:foreground "CadetBlue4" :bold t))
 408     (t
 409      ()))
 410   "Level 2 newsgroup face."
 411   :group 'gnus-group)
 412 ;; backward-compatibility alias
 413 (put 'gnus-group-news-2-face 'face-alias 'gnus-group-news-2)
 414 (put 'gnus-group-news-2-face 'obsolete-face "22.1")
 415
 416 (defface gnus-group-news-2-empty
 417   '((((class color)
 418       (background dark))
 419      (:foreground "turquoise"))
 420     (((class color)
 421       (background light))
 422      (:foreground "CadetBlue4"))
 423     (t
 424      ()))
 425   "Level 2 empty newsgroup face."
 426   :group 'gnus-group)
 427 ;; backward-compatibility alias
 428 (put 'gnus-group-news-2-empty-face 'face-alias 'gnus-group-news-2-empty)
 429 (put 'gnus-group-news-2-empty-face 'obsolete-face "22.1")
 430
 431 (defface gnus-group-news-3
 432   '((((class color)
 433       (background dark))
 434      (:bold t))
 435     (((class color)
 436       (background light))
 437      (:bold t))
 438     (t
 439      ()))
 440   "Level 3 newsgroup face."
 441   :group 'gnus-group)
 442 ;; backward-compatibility alias
 443 (put 'gnus-group-news-3-face 'face-alias 'gnus-group-news-3)
 444 (put 'gnus-group-news-3-face 'obsolete-face "22.1")
 445
 446 (defface gnus-group-news-3-empty
 447   '((((class color)
 448       (background dark))
 449      ())
 450     (((class color)
 451       (background light))
 452      ())
 453     (t
 454      ()))
 455   "Level 3 empty newsgroup face."
 456   :group 'gnus-group)
 457 ;; backward-compatibility alias
 458 (put 'gnus-group-news-3-empty-face 'face-alias 'gnus-group-news-3-empty)
 459 (put 'gnus-group-news-3-empty-face 'obsolete-face "22.1")
 460
 461 (defface gnus-group-news-4
 462   '((((class color)
 463       (background dark))
 464      (:bold t))
 465     (((class color)
 466       (background light))
 467      (:bold t))
 468     (t
 469      ()))
 470   "Level 4 newsgroup face."
 471   :group 'gnus-group)
 472 ;; backward-compatibility alias
 473 (put 'gnus-group-news-4-face 'face-alias 'gnus-group-news-4)
 474 (put 'gnus-group-news-4-face 'obsolete-face "22.1")
 475
 476 (defface gnus-group-news-4-empty
 477   '((((class color)
 478       (background dark))
 479      ())
 480     (((class color)
 481       (background light))
 482      ())
 483     (t
 484      ()))
 485   "Level 4 empty newsgroup face."
 486   :group 'gnus-group)
 487 ;; backward-compatibility alias
 488 (put 'gnus-group-news-4-empty-face 'face-alias 'gnus-group-news-4-empty)
 489 (put 'gnus-group-news-4-empty-face 'obsolete-face "22.1")
 490
 491 (defface gnus-group-news-5
 492   '((((class color)
 493       (background dark))
 494      (:bold t))
 495     (((class color)
 496       (background light))
 497      (:bold t))
 498     (t
 499      ()))
 500   "Level 5 newsgroup face."
 501   :group 'gnus-group)
 502 ;; backward-compatibility alias
 503 (put 'gnus-group-news-5-face 'face-alias 'gnus-group-news-5)
 504 (put 'gnus-group-news-5-face 'obsolete-face "22.1")
 505
 506 (defface gnus-group-news-5-empty
 507   '((((class color)
 508       (background dark))
 509      ())
 510     (((class color)
 511       (background light))
 512      ())
 513     (t
 514      ()))
 515   "Level 5 empty newsgroup face."
 516   :group 'gnus-group)
 517 ;; backward-compatibility alias
 518 (put 'gnus-group-news-5-empty-face 'face-alias 'gnus-group-news-5-empty)
 519 (put 'gnus-group-news-5-empty-face 'obsolete-face "22.1")
 520
 521 (defface gnus-group-news-6
 522   '((((class color)
 523       (background dark))
 524      (:bold t))
 525     (((class color)
 526       (background light))
 527      (:bold t))
 528     (t
 529      ()))
 530   "Level 6 newsgroup face."
 531   :group 'gnus-group)
 532 ;; backward-compatibility alias
 533 (put 'gnus-group-news-6-face 'face-alias 'gnus-group-news-6)
 534 (put 'gnus-group-news-6-face 'obsolete-face "22.1")
 535
 536 (defface gnus-group-news-6-empty
 537   '((((class color)
 538       (background dark))
 539      ())
 540     (((class color)
 541       (background light))
 542      ())
 543     (t
 544      ()))
 545   "Level 6 empty newsgroup face."
 546   :group 'gnus-group)
 547 ;; backward-compatibility alias
 548 (put 'gnus-group-news-6-empty-face 'face-alias 'gnus-group-news-6-empty)
 549 (put 'gnus-group-news-6-empty-face 'obsolete-face "22.1")
 550
 551 (defface gnus-group-news-low
 552   '((((class color)
 553       (background dark))
 554      (:foreground "DarkTurquoise" :bold t))
 555     (((class color)
 556       (background light))
 557      (:foreground "DarkGreen" :bold t))
 558     (t
 559      ()))
 560   "Low level newsgroup face."
 561   :group 'gnus-group)
 562 ;; backward-compatibility alias
 563 (put 'gnus-group-news-low-face 'face-alias 'gnus-group-news-low)
 564 (put 'gnus-group-news-low-face 'obsolete-face "22.1")
 565
 566 (defface gnus-group-news-low-empty
 567   '((((class color)
 568       (background dark))
 569      (:foreground "DarkTurquoise"))
 570     (((class color)
 571       (background light))
 572      (:foreground "DarkGreen"))
 573     (t
 574      ()))
 575   "Low level empty newsgroup face."
 576   :group 'gnus-group)
 577 ;; backward-compatibility alias
 578 (put 'gnus-group-news-low-empty-face 'face-alias 'gnus-group-news-low-empty)
 579 (put 'gnus-group-news-low-empty-face 'obsolete-face "22.1")
 580
 581 (defface gnus-group-mail-1
 582   '((((class color)
 583       (background dark))
 584      (:foreground "#e1ffe1" :bold t))
 585     (((class color)
 586       (background light))
 587      (:foreground "DeepPink3" :bold t))
 588     (t
 589      (:bold t)))
 590   "Level 1 mailgroup face."
 591   :group 'gnus-group)
 592 ;; backward-compatibility alias
 593 (put 'gnus-group-mail-1-face 'face-alias 'gnus-group-mail-1)
 594 (put 'gnus-group-mail-1-face 'obsolete-face "22.1")
 595
 596 (defface gnus-group-mail-1-empty
 597   '((((class color)
 598       (background dark))
 599      (:foreground "#e1ffe1"))
 600     (((class color)
 601       (background light))
 602      (:foreground "DeepPink3"))
 603     (t
 604      (:italic t :bold t)))
 605   "Level 1 empty mailgroup face."
 606   :group 'gnus-group)
 607 ;; backward-compatibility alias
 608 (put 'gnus-group-mail-1-empty-face 'face-alias 'gnus-group-mail-1-empty)
 609 (put 'gnus-group-mail-1-empty-face 'obsolete-face "22.1")
 610
 611 (defface gnus-group-mail-2
 612   '((((class color)
 613       (background dark))
 614      (:foreground "DarkSeaGreen1" :bold t))
 615     (((class color)
 616       (background light))
 617      (:foreground "HotPink3" :bold t))
 618     (t
 619      (:bold t)))
 620   "Level 2 mailgroup face."
 621   :group 'gnus-group)
 622 ;; backward-compatibility alias
 623 (put 'gnus-group-mail-2-face 'face-alias 'gnus-group-mail-2)
 624 (put 'gnus-group-mail-2-face 'obsolete-face "22.1")
 625
 626 (defface gnus-group-mail-2-empty
 627   '((((class color)
 628       (background dark))
 629      (:foreground "DarkSeaGreen1"))
 630     (((class color)
 631       (background light))
 632      (:foreground "HotPink3"))
 633     (t
 634      (:bold t)))
 635   "Level 2 empty mailgroup face."
 636   :group 'gnus-group)
 637 ;; backward-compatibility alias
 638 (put 'gnus-group-mail-2-empty-face 'face-alias 'gnus-group-mail-2-empty)
 639 (put 'gnus-group-mail-2-empty-face 'obsolete-face "22.1")
 640
 641 (defface gnus-group-mail-3
 642   '((((class color)
 643       (background dark))
 644      (:foreground "aquamarine1" :bold t))
 645     (((class color)
 646       (background light))
 647      (:foreground "magenta4" :bold t))
 648     (t
 649      (:bold t)))
 650   "Level 3 mailgroup face."
 651   :group 'gnus-group)
 652 ;; backward-compatibility alias
 653 (put 'gnus-group-mail-3-face 'face-alias 'gnus-group-mail-3)
 654 (put 'gnus-group-mail-3-face 'obsolete-face "22.1")
 655
 656 (defface gnus-group-mail-3-empty
 657   '((((class color)
 658       (background dark))
 659      (:foreground "aquamarine1"))
 660     (((class color)
 661       (background light))
 662      (:foreground "magenta4"))
 663     (t
 664      ()))
 665   "Level 3 empty mailgroup face."
 666   :group 'gnus-group)
 667 ;; backward-compatibility alias
 668 (put 'gnus-group-mail-3-empty-face 'face-alias 'gnus-group-mail-3-empty)
 669 (put 'gnus-group-mail-3-empty-face 'obsolete-face "22.1")
 670
 671 (defface gnus-group-mail-low
 672   '((((class color)
 673       (background dark))
 674      (:foreground "aquamarine2" :bold t))
 675     (((class color)
 676       (background light))
 677      (:foreground "DeepPink4" :bold t))
 678     (t
 679      (:bold t)))
 680   "Low level mailgroup face."
 681   :group 'gnus-group)
 682 ;; backward-compatibility alias
 683 (put 'gnus-group-mail-low-face 'face-alias 'gnus-group-mail-low)
 684 (put 'gnus-group-mail-low-face 'obsolete-face "22.1")
 685
 686 (defface gnus-group-mail-low-empty
 687   '((((class color)
 688       (background dark))
 689      (:foreground "aquamarine2"))
 690     (((class color)
 691       (background light))
 692      (:foreground "DeepPink4"))
 693     (t
 694      (:bold t)))
 695   "Low level empty mailgroup face."
 696   :group 'gnus-group)
 697 ;; backward-compatibility alias
 698 (put 'gnus-group-mail-low-empty-face 'face-alias 'gnus-group-mail-low-empty)
 699 (put 'gnus-group-mail-low-empty-face 'obsolete-face "22.1")
 700
 701 ;; Summary mode faces.
 702
 703 (defface gnus-summary-selected '((t (:underline t)))
 704   "Face used for selected articles."
 705   :group 'gnus-summary)
 706 ;; backward-compatibility alias
 707 (put 'gnus-summary-selected-face 'face-alias 'gnus-summary-selected)
 708 (put 'gnus-summary-selected-face 'obsolete-face "22.1")
 709
 710 (defface gnus-summary-cancelled
 711   '((((class color))
 712      (:foreground "yellow" :background "black")))
 713   "Face used for cancelled articles."
 714   :group 'gnus-summary)
 715 ;; backward-compatibility alias
 716 (put 'gnus-summary-cancelled-face 'face-alias 'gnus-summary-cancelled)
 717 (put 'gnus-summary-cancelled-face 'obsolete-face "22.1")
 718
 719 (defface gnus-summary-high-ticked
 720   '((((class color)
 721       (background dark))
 722      (:foreground "pink" :bold t))
 723     (((class color)
 724       (background light))
 725      (:foreground "firebrick" :bold t))
 726     (t
 727      (:bold t)))
 728   "Face used for high interest ticked articles."
 729   :group 'gnus-summary)
 730 ;; backward-compatibility alias
 731 (put 'gnus-summary-high-ticked-face 'face-alias 'gnus-summary-high-ticked)
 732 (put 'gnus-summary-high-ticked-face 'obsolete-face "22.1")
 733
 734 (defface gnus-summary-low-ticked
 735   '((((class color)
 736       (background dark))
 737      (:foreground "pink" :italic t))
 738     (((class color)
 739       (background light))
 740      (:foreground "firebrick" :italic t))
 741     (t
 742      (:italic t)))
 743   "Face used for low interest ticked articles."
 744   :group 'gnus-summary)
 745 ;; backward-compatibility alias
 746 (put 'gnus-summary-low-ticked-face 'face-alias 'gnus-summary-low-ticked)
 747 (put 'gnus-summary-low-ticked-face 'obsolete-face "22.1")
 748
 749 (defface gnus-summary-normal-ticked
 750   '((((class color)
 751       (background dark))
 752      (:foreground "pink"))
 753     (((class color)
 754       (background light))
 755      (:foreground "firebrick"))
 756     (t
 757      ()))
 758   "Face used for normal interest ticked articles."
 759   :group 'gnus-summary)
 760 ;; backward-compatibility alias
 761 (put 'gnus-summary-normal-ticked-face 'face-alias 'gnus-summary-normal-ticked)
 762 (put 'gnus-summary-normal-ticked-face 'obsolete-face "22.1")
 763
 764 (defface gnus-summary-high-ancient
 765   '((((class color)
 766       (background dark))
 767      (:foreground "SkyBlue" :bold t))
 768     (((class color)
 769       (background light))
 770      (:foreground "RoyalBlue" :bold t))
 771     (t
 772      (:bold t)))
 773   "Face used for high interest ancient articles."
 774   :group 'gnus-summary)
 775 ;; backward-compatibility alias
 776 (put 'gnus-summary-high-ancient-face 'face-alias 'gnus-summary-high-ancient)
 777 (put 'gnus-summary-high-ancient-face 'obsolete-face "22.1")
 778
 779 (defface gnus-summary-low-ancient
 780   '((((class color)
 781       (background dark))
 782      (:foreground "SkyBlue" :italic t))
 783     (((class color)
 784       (background light))
 785      (:foreground "RoyalBlue" :italic t))
 786     (t
 787      (:italic t)))
 788   "Face used for low interest ancient articles."
 789   :group 'gnus-summary)
 790 ;; backward-compatibility alias
 791 (put 'gnus-summary-low-ancient-face 'face-alias 'gnus-summary-low-ancient)
 792 (put 'gnus-summary-low-ancient-face 'obsolete-face "22.1")
 793
 794 (defface gnus-summary-normal-ancient
 795   '((((class color)
 796       (background dark))
 797      (:foreground "SkyBlue"))
 798     (((class color)
 799       (background light))
 800      (:foreground "RoyalBlue"))
 801     (t
 802      ()))
 803   "Face used for normal interest ancient articles."
 804   :group 'gnus-summary)
 805 ;; backward-compatibility alias
 806 (put 'gnus-summary-normal-ancient-face 'face-alias 'gnus-summary-normal-ancient)
 807 (put 'gnus-summary-normal-ancient-face 'obsolete-face "22.1")
 808
 809 (defface gnus-summary-high-undownloaded
 810    '((((class color)
 811        (background light))
 812       (:bold t :foreground "cyan4"))
 813      (((class color) (background dark))
 814       (:bold t :foreground "LightGray"))
 815      (t (:inverse-video t :bold t)))
 816   "Face used for high interest uncached articles."
 817   :group 'gnus-summary)
 818 ;; backward-compatibility alias
 819 (put 'gnus-summary-high-undownloaded-face 'face-alias 'gnus-summary-high-undownloaded)
 820 (put 'gnus-summary-high-undownloaded-face 'obsolete-face "22.1")
 821
 822 (defface gnus-summary-low-undownloaded
 823    '((((class color)
 824        (background light))
 825       (:italic t :foreground "cyan4" :bold nil))
 826      (((class color) (background dark))
 827       (:italic t :foreground "LightGray" :bold nil))
 828      (t (:inverse-video t :italic t)))
 829   "Face used for low interest uncached articles."
 830   :group 'gnus-summary)
 831 ;; backward-compatibility alias
 832 (put 'gnus-summary-low-undownloaded-face 'face-alias 'gnus-summary-low-undownloaded)
 833 (put 'gnus-summary-low-undownloaded-face 'obsolete-face "22.1")
 834
 835 (defface gnus-summary-normal-undownloaded
 836    '((((class color)
 837        (background light))
 838       (:foreground "cyan4" :bold nil))
 839      (((class color) (background dark))
 840       (:foreground "LightGray" :bold nil))
 841      (t (:inverse-video t)))
 842   "Face used for normal interest uncached articles."
 843   :group 'gnus-summary)
 844 ;; backward-compatibility alias
 845 (put 'gnus-summary-normal-undownloaded-face 'face-alias 'gnus-summary-normal-undownloaded)
 846 (put 'gnus-summary-normal-undownloaded-face 'obsolete-face "22.1")
 847
 848 (defface gnus-summary-high-unread
 849   '((t
 850      (:bold t)))
 851   "Face used for high interest unread articles."
 852   :group 'gnus-summary)
 853 ;; backward-compatibility alias
 854 (put 'gnus-summary-high-unread-face 'face-alias 'gnus-summary-high-unread)
 855 (put 'gnus-summary-high-unread-face 'obsolete-face "22.1")
 856
 857 (defface gnus-summary-low-unread
 858   '((t
 859      (:italic t)))
 860   "Face used for low interest unread articles."
 861   :group 'gnus-summary)
 862 ;; backward-compatibility alias
 863 (put 'gnus-summary-low-unread-face 'face-alias 'gnus-summary-low-unread)
 864 (put 'gnus-summary-low-unread-face 'obsolete-face "22.1")
 865
 866 (defface gnus-summary-normal-unread
 867   '((t
 868      ()))
 869   "Face used for normal interest unread articles."
 870   :group 'gnus-summary)
 871 ;; backward-compatibility alias
 872 (put 'gnus-summary-normal-unread-face 'face-alias 'gnus-summary-normal-unread)
 873 (put 'gnus-summary-normal-unread-face 'obsolete-face "22.1")
 874
 875 (defface gnus-summary-high-read
 876   '((((class color)
 877       (background dark))
 878      (:foreground "PaleGreen"
 879                   :bold t))
 880     (((class color)
 881       (background light))
 882      (:foreground "DarkGreen"
 883                   :bold t))
 884     (t
 885      (:bold t)))
 886   "Face used for high interest read articles."
 887   :group 'gnus-summary)
 888 ;; backward-compatibility alias
 889 (put 'gnus-summary-high-read-face 'face-alias 'gnus-summary-high-read)
 890 (put 'gnus-summary-high-read-face 'obsolete-face "22.1")
 891
 892 (defface gnus-summary-low-read
 893   '((((class color)
 894       (background dark))
 895      (:foreground "PaleGreen"
 896                   :italic t))
 897     (((class color)
 898       (background light))
 899      (:foreground "DarkGreen"
 900                   :italic t))
 901     (t
 902      (:italic t)))
 903   "Face used for low interest read articles."
 904   :group 'gnus-summary)
 905 ;; backward-compatibility alias
 906 (put 'gnus-summary-low-read-face 'face-alias 'gnus-summary-low-read)
 907 (put 'gnus-summary-low-read-face 'obsolete-face "22.1")
 908
 909 (defface gnus-summary-normal-read
 910   '((((class color)
 911       (background dark))
 912      (:foreground "PaleGreen"))
 913     (((class color)
 914       (background light))
 915      (:foreground "DarkGreen"))
 916     (t
 917      ()))
 918   "Face used for normal interest read articles."
 919   :group 'gnus-summary)
 920 ;; backward-compatibility alias
 921 (put 'gnus-summary-normal-read-face 'face-alias 'gnus-summary-normal-read)
 922 (put 'gnus-summary-normal-read-face 'obsolete-face "22.1")
 923
 924
 925 ;;;
 926 ;;; Gnus buffers
 927 ;;;
 928
 929 (defvar gnus-buffers nil)
 930
 931 (defun gnus-get-buffer-create (name)
 932   "Do the same as `get-buffer-create', but store the created buffer."
 933   (or (get-buffer name)
 934       (car (push (get-buffer-create name) gnus-buffers))))
 935
 936 (defun gnus-add-buffer ()
 937   "Add the current buffer to the list of Gnus buffers."
 938   (push (current-buffer) gnus-buffers))
 939
 940 (defmacro gnus-kill-buffer (buffer)
 941   "Kill BUFFER and remove from the list of Gnus buffers."
 942   `(let ((buf ,buffer))
 943      (when (gnus-buffer-exists-p buf)
 944        (setq gnus-buffers (delete (get-buffer buf) gnus-buffers))
 945        (kill-buffer buf))))
 946
 947 (defun gnus-buffers ()
 948   "Return a list of live Gnus buffers."
 949   (while (and gnus-buffers
 950               (not (buffer-name (car gnus-buffers))))
 951     (pop gnus-buffers))
 952   (let ((buffers gnus-buffers))
 953     (while (cdr buffers)
 954       (if (buffer-name (cadr buffers))
 955           (pop buffers)
 956         (setcdr buffers (cddr buffers)))))
 957   gnus-buffers)
 958
 959 ;;; Splash screen.
 960
 961 (defvar gnus-group-buffer "*Group*")
 962
 963 (autoload 'gnus-play-jingle "gnus-audio")
 964
 965 (defface gnus-splash
 966   '((((class color)
 967       (background dark))
 968      (:foreground "#cccccc"))
 969     (((class color)
 970       (background light))
 971      (:foreground "#888888"))
 972     (t
 973      ()))
 974   "Face for the splash screen."
 975   :group 'gnus-start)
 976 ;; backward-compatibility alias
 977 (put 'gnus-splash-face 'face-alias 'gnus-splash)
 978 (put 'gnus-splash-face 'obsolete-face "22.1")
 979
 980 (defun gnus-splash ()
 981   (save-excursion
 982     (switch-to-buffer (gnus-get-buffer-create gnus-group-buffer))
 983     (let ((buffer-read-only nil))
 984       (erase-buffer)
 985       (unless gnus-inhibit-startup-message
 986         (gnus-group-startup-message)
 987         (sit-for 0)
 988         (when gnus-play-startup-jingle
 989           (gnus-play-jingle))))))
 990
 991 (defun gnus-indent-rigidly (start end arg)
 992   "Indent rigidly using only spaces and no tabs."
 993   (save-excursion
 994     (save-restriction
 995       (narrow-to-region start end)
 996       (let ((tab-width 8))
 997         (indent-rigidly start end arg)
 998         ;; We translate tabs into spaces -- not everybody uses
 999         ;; an 8-character tab.
1000         (goto-char (point-min))
1001         (while (search-forward "\t" nil t)
1002           (replace-match "        " t t))))))
1003
1004 (defvar gnus-simple-splash nil)
1005
1006 ;;(format "%02x%02x%02x" 114 66 20) "724214"
1007
1008 (defvar gnus-logo-color-alist
1009   '((flame "#cc3300" "#ff2200")
1010     (pine "#c0cc93" "#f8ffb8")
1011     (moss "#a1cc93" "#d2ffb8")
1012     (irish "#04cc90" "#05ff97")
1013     (sky "#049acc" "#05deff")
1014     (tin "#6886cc" "#82b6ff")
1015     (velvet "#7c68cc" "#8c82ff")
1016     (grape "#b264cc" "#cf7df")
1017     (labia "#cc64c2" "#fd7dff")
1018     (berry "#cc6485" "#ff7db5")
1019     (dino "#724214" "#1e3f03")
1020     (oort "#cccccc" "#888888")
1021     (storm "#666699" "#99ccff")
1022     (pdino "#9999cc" "#99ccff")
1023     (purp "#9999cc" "#666699")
1024     (no "#ff0000" "#ffff00")
1025     (neutral "#b4b4b4" "#878787")
1026     (september "#bf9900" "#ffcc00"))
1027   "Color alist used for the Gnus logo.")
1028
1029 (defcustom gnus-logo-color-style 'no
1030   "*Color styles used for the Gnus logo."
1031   :type `(choice ,@(mapcar (lambda (elem) (list 'const (car elem)))
1032                            gnus-logo-color-alist))
1033   :group 'gnus-xmas)
1034
1035 (defvar gnus-logo-colors
1036   (cdr (assq gnus-logo-color-style gnus-logo-color-alist))
1037   "Colors used for the Gnus logo.")
1038
1039 (declare-function image-size "image.c" (spec &optional pixels frame))
1040
1041 (defun gnus-group-startup-message (&optional x y)
1042   "Insert startup message in current buffer."
1043   ;; Insert the message.
1044   (erase-buffer)
1045   (cond
1046    ((and
1047      (fboundp 'find-image)
1048      (display-graphic-p)
1049      ;; Make sure the library defining `image-load-path' is loaded
1050      ;; (`find-image' is autoloaded) (and discard the result).  Else, we may
1051      ;; get "defvar ignored because image-load-path is let-bound" when calling
1052      ;; `find-image' below.
1053      (or (find-image '(nil (:type xpm :file "gnus.xpm"))) t)
1054      (let* ((data-directory (nnheader-find-etc-directory "images/gnus"))
1055             (image-load-path (cond (data-directory
1056                                     (list data-directory))
1057                                    ((boundp 'image-load-path)
1058                                     (symbol-value 'image-load-path))
1059                                    (t load-path)))
1060             (image (find-image
1061                     `((:type svg :file "gnus.svg")
1062                       (:type png :file "gnus.png")
1063                       (:type xpm :file "gnus.xpm"
1064                              :color-symbols
1065                              (("thing" . ,(car gnus-logo-colors))
1066                               ("shadow" . ,(cadr gnus-logo-colors))
1067                               ("oort" . "#eeeeee")
1068                               ("background" . ,(face-background 'default))))
1069                       (:type pbm :file "gnus.pbm"
1070                              ;; Account for the pbm's blackground.
1071                              :background ,(face-foreground 'gnus-splash)
1072                              :foreground ,(face-background 'default))
1073                       (:type xbm :file "gnus.xbm"
1074                              ;; Account for the xbm's blackground.
1075                              :background ,(face-foreground 'gnus-splash)
1076                              :foreground ,(face-background 'default))))))
1077        (when image
1078          (let ((size (image-size image)))
1079            (insert-char ?\n (max 0 (round (- (window-height)
1080                                              (or y (cdr size)) 1) 2)))
1081            (insert-char ?\  (max 0 (round (- (window-width)
1082                                              (or x (car size))) 2)))
1083            (insert-image image))
1084          (setq gnus-simple-splash nil)
1085          t))))
1086    (t
1087     (insert
1088      (format "              %s
1089           _    ___ _             _
1090           _ ___ __ ___  __    _ ___
1091           __   _     ___    __  ___
1092               _           ___     _
1093              _  _ __             _
1094              ___   __            _
1095                    __           _
1096                     _      _   _
1097                    _      _    _
1098                       _  _    _
1099                   __  ___
1100                  _   _ _     _
1101                 _   _
1102               _    _
1103              _    _
1104             _
1105           __
1106
1107 "
1108              ""))
1109     ;; And then hack it.
1110     (gnus-indent-rigidly (point-min) (point-max)
1111                          (/ (max (- (window-width) (or x 46)) 0) 2))
1112     (goto-char (point-min))
1113     (forward-line 1)
1114     (let* ((pheight (count-lines (point-min) (point-max)))
1115            (wheight (window-height))
1116            (rest (- wheight pheight)))
1117       (insert (make-string (max 0 (* 2 (/ rest 3))) ?\n)))
1118     ;; Fontify some.
1119     (put-text-property (point-min) (point-max) 'face 'gnus-splash)
1120     (setq gnus-simple-splash t)))
1121   (goto-char (point-min))
1122   (setq mode-line-buffer-identification (concat " " gnus-version))
1123   (set-buffer-modified-p t))
1124
1125 (eval-when (load)
1126   (let ((command (format "%s" this-command)))
1127     (when (string-match "gnus" command)
1128       (if (string-match "gnus-other-frame" command)
1129           (gnus-get-buffer-create gnus-group-buffer)
1130         (gnus-splash)))))
1131
1132 ;;; Do the rest.
1133
1134 (require 'gnus-util)
1135 (require 'nnheader)
1136
1137 (defcustom gnus-parameters nil
1138   "Alist of group parameters.
1139
1140 For example:
1141    ((\"mail\\\\..*\"  (gnus-show-threads nil)
1142                   (gnus-use-scoring nil)
1143                   (gnus-summary-line-format
1144                         \"%U%R%z%I%(%[%d:%ub%-23,23f%]%) %s\\n\")
1145                   (gcc-self . t)
1146                   (display . all))
1147      (\"mail\\\\.me\" (gnus-use-scoring  t))
1148      (\"list\\\\..*\" (total-expire . t)
1149                   (broken-reply-to . t)))"
1150   :version "22.1"
1151   :group 'gnus-group-various
1152   :type '(repeat (cons regexp
1153                        (repeat sexp))))
1154
1155 (defcustom gnus-parameters-case-fold-search 'default
1156   "If it is t, ignore case of group names specified in `gnus-parameters'.
1157 If it is nil, don't ignore case.  If it is `default', which is for the
1158 backward compatibility, use the value of `case-fold-search'."
1159   :version "22.1"
1160   :group 'gnus-group-various
1161   :type '(choice :format "%{%t%}:\n %[Value Menu%] %v"
1162                  (const :tag "Use `case-fold-search'" default)
1163                  (const nil)
1164                  (const t)))
1165
1166 (defvar gnus-group-parameters-more nil)
1167
1168 (defmacro gnus-define-group-parameter (param &rest rest)
1169   "Define a group parameter PARAM.
1170 REST is a plist of following:
1171 :type               One of `bool', `list' or nil.
1172 :function           The name of the function.
1173 :function-document  The documentation of the function.
1174 :parameter-type     The type for customizing the parameter.
1175 :parameter-document The documentation for the parameter.
1176 :variable           The name of the variable.
1177 :variable-document  The documentation for the variable.
1178 :variable-group     The group for customizing the variable.
1179 :variable-type      The type for customizing the variable.
1180 :variable-default   The default value of the variable."
1181   (let* ((type (plist-get rest :type))
1182          (parameter-type (plist-get rest :parameter-type))
1183          (parameter-document (plist-get rest :parameter-document))
1184          (function (or (plist-get rest :function)
1185                        (intern (format "gnus-parameter-%s" param))))
1186          (function-document (or (plist-get rest :function-document) ""))
1187          (variable (or (plist-get rest :variable)
1188                        (intern (format "gnus-parameter-%s-alist" param))))
1189          (variable-document (or (plist-get rest :variable-document) ""))
1190          (variable-group (plist-get rest :variable-group))
1191          (variable-type (or (plist-get rest :variable-type)
1192                             `(quote (repeat
1193                                      (list (regexp :tag "Group")
1194                                            ,(car (cdr parameter-type)))))))
1195          (variable-default (plist-get rest :variable-default)))
1196     (list
1197      'progn
1198      `(defcustom ,variable ,variable-default
1199         ,variable-document
1200         :group 'gnus-group-parameter
1201         :group ',variable-group
1202         :type ,variable-type)
1203      `(setq gnus-group-parameters-more
1204             (delq (assq ',param gnus-group-parameters-more)
1205                   gnus-group-parameters-more))
1206      `(add-to-list 'gnus-group-parameters-more
1207                    (list ',param
1208                          ,parameter-type
1209                          ,parameter-document))
1210      (if (eq type 'bool)
1211          `(defun ,function (name)
1212             ,function-document
1213             (let ((params (gnus-group-find-parameter name))
1214                   val)
1215               (cond
1216                ((memq ',param params)
1217                 t)
1218                ((setq val (assq ',param params))
1219                 (cdr val))
1220                ((stringp ,variable)
1221                 (string-match ,variable name))
1222                (,variable
1223                 (let ((alist ,variable)
1224                       elem value)
1225                   (while (setq elem (pop alist))
1226                     (when (and name
1227                                (string-match (car elem) name))
1228                       (setq alist nil
1229                             value (cdr elem))))
1230                   (if (consp value) (car value) value))))))
1231        `(defun ,function (name)
1232           ,function-document
1233           (and name
1234                (or (gnus-group-find-parameter name ',param ,(and type t))
1235                    (let ((alist ,variable)
1236                          elem value)
1237                      (while (setq elem (pop alist))
1238                        (when (and name
1239                                   (string-match (car elem) name))
1240                          (setq alist nil
1241                                value (cdr elem))))
1242                      ,(if type
1243                           'value
1244                         '(if (consp value) (car value) value))))))))))
1245
1246 (defcustom gnus-home-directory "~/"
1247   "Directory variable that specifies the \"home\" directory.
1248 All other Gnus file and directory variables are initialized from this variable."
1249   :group 'gnus-files
1250   :type 'directory)
1251
1252 (defcustom gnus-directory (or (getenv "SAVEDIR")
1253                               (nnheader-concat gnus-home-directory "News/"))
1254   "*Directory variable from which all other Gnus file variables are derived.
1255
1256 Note that Gnus is mostly loaded when the `.gnus.el' file is read.
1257 This means that other directory variables that are initialized from
1258 this variable won't be set properly if you set this variable in `.gnus.el'.
1259 Set this variable in `.emacs' instead."
1260   :group 'gnus-files
1261   :type 'directory)
1262
1263 (defcustom gnus-default-directory nil
1264   "*Default directory for all Gnus buffers."
1265   :group 'gnus-files
1266   :type '(choice (const :tag "current" nil)
1267                  directory))
1268
1269 ;; Site dependent variables.  These variables should be defined in
1270 ;; paths.el.
1271
1272 (defvar gnus-default-nntp-server nil
1273   "Specify a default NNTP server.
1274 This variable should be defined in paths.el, and should never be set
1275 by the user.
1276 If you want to change servers, you should use `gnus-select-method'.
1277 See the documentation to that variable.")
1278
1279 ;; Don't touch this variable.
1280 (defvar gnus-nntp-service "nntp"
1281   "NNTP service name (\"nntp\" or 119).
1282 This is an obsolete variable, which is scarcely used.  If you use an
1283 nntp server for your newsgroup and want to change the port number
1284 used to 899, you would say something along these lines:
1285
1286  (setq gnus-select-method '(nntp \"my.nntp.server\" (nntp-port-number 899)))")
1287
1288 (defcustom gnus-nntpserver-file "/etc/nntpserver"
1289   "A file with only the name of the nntp server in it."
1290   :group 'gnus-files
1291   :group 'gnus-server
1292   :type 'file)
1293
1294 (defun gnus-getenv-nntpserver ()
1295   "Find default nntp server.
1296 Check the NNTPSERVER environment variable and the
1297 `gnus-nntpserver-file' file."
1298   (or (getenv "NNTPSERVER")
1299       (and (file-readable-p gnus-nntpserver-file)
1300            (with-temp-buffer
1301              (insert-file-contents gnus-nntpserver-file)
1302              (when (re-search-forward "[^ \t\n\r]+" nil t)
1303                (match-string 0))))))
1304
1305 ;; `M-x customize-variable RET gnus-select-method RET' should work without
1306 ;; starting or even loading Gnus.
1307 ;;;###autoload(when (fboundp 'custom-autoload)
1308 ;;;###autoload  (custom-autoload 'gnus-select-method "gnus"))
1309
1310 (defcustom gnus-select-method
1311   (condition-case nil
1312       (nconc
1313        (list 'nntp (or (condition-case nil
1314                            (gnus-getenv-nntpserver)
1315                          (error nil))
1316                        (when (and gnus-default-nntp-server
1317                                   (not (string= gnus-default-nntp-server "")))
1318                          gnus-default-nntp-server)
1319                        "news"))
1320        (if (or (null gnus-nntp-service)
1321                (equal gnus-nntp-service "nntp"))
1322            nil
1323          (list gnus-nntp-service)))
1324     (error nil))
1325   "Default method for selecting a newsgroup.
1326 This variable should be a list, where the first element is how the
1327 news is to be fetched, the second is the address.
1328
1329 For instance, if you want to get your news via \"flab.flab.edu\" using
1330 NNTP, you could say:
1331
1332 \(setq gnus-select-method '(nntp \"flab.flab.edu\"))
1333
1334 If you want to use your local spool, say:
1335
1336 \(setq gnus-select-method (list 'nnspool (system-name)))
1337
1338 If you use this variable, you must set `gnus-nntp-server' to nil.
1339
1340 There is a lot more to know about select methods and virtual servers -
1341 see the manual for details."
1342   :group 'gnus-server
1343   :group 'gnus-start
1344   :initialize 'custom-initialize-default
1345   :type 'gnus-select-method)
1346
1347 (defcustom gnus-message-archive-method "archive"
1348   "*Method used for archiving messages you've sent.
1349 This should be a mail method.
1350
1351 See also `gnus-update-message-archive-method'."
1352   :group 'gnus-server
1353   :group 'gnus-message
1354   :type '(choice (const :tag "Default archive method" "archive")
1355                  gnus-select-method))
1356
1357 (defcustom gnus-update-message-archive-method nil
1358   "Non-nil means always update the saved \"archive\" method.
1359
1360 The archive method is initially set according to the value of
1361 `gnus-message-archive-method' and is saved in the \"~/.newsrc.eld\" file
1362 so that it may be used as a real method of the server which is named
1363 \"archive\" ever since.  If it once has been saved, it will never be
1364 updated if the value of this variable is nil, even if you change the
1365 value of `gnus-message-archive-method' afterward.  If you want the
1366 saved \"archive\" method to be updated whenever you change the value of
1367 `gnus-message-archive-method', set this variable to a non-nil value."
1368   :version "23.1" ;; No Gnus
1369   :group 'gnus-server
1370   :group 'gnus-message
1371   :type 'boolean)
1372
1373 (defcustom gnus-message-archive-group nil
1374   "*Name of the group in which to save the messages you've written.
1375 This can either be a string; a list of strings; or an alist
1376 of regexps/functions/forms to be evaluated to return a string (or a list
1377 of strings).  The functions are called with the name of the current
1378 group (or nil) as a parameter.
1379
1380 If you want to save your mail in one group and the news articles you
1381 write in another group, you could say something like:
1382
1383  \(setq gnus-message-archive-group
1384         '((if (message-news-p)
1385               \"misc-news\"
1386             \"misc-mail\")))
1387
1388 Normally the group names returned by this variable should be
1389 unprefixed -- which implicitly means \"store on the archive server\".
1390 However, you may wish to store the message on some other server.  In
1391 that case, just return a fully prefixed name of the group --
1392 \"nnml+private:mail.misc\", for instance."
1393   :group 'gnus-message
1394   :type '(choice (const :tag "none" nil)
1395                  function
1396                  sexp
1397                  string))
1398
1399 (defcustom gnus-secondary-servers nil
1400   "List of NNTP servers that the user can choose between interactively.
1401 To make Gnus query you for a server, you have to give `gnus' a
1402 non-numeric prefix - `C-u M-x gnus', in short."
1403   :group 'gnus-server
1404   :type '(repeat string))
1405
1406 (defcustom gnus-nntp-server nil
1407   "*The name of the host running the NNTP server.
1408 This variable is semi-obsolete.  Use the `gnus-select-method'
1409 variable instead."
1410   :group 'gnus-server
1411   :type '(choice (const :tag "disable" nil)
1412                  string))
1413
1414 (defcustom gnus-secondary-select-methods nil
1415   "A list of secondary methods that will be used for reading news.
1416 This is a list where each element is a complete select method (see
1417 `gnus-select-method').
1418
1419 If, for instance, you want to read your mail with the nnml back end,
1420 you could set this variable:
1421
1422 \(setq gnus-secondary-select-methods '((nnml \"\")))"
1423   :group 'gnus-server
1424   :type '(repeat gnus-select-method))
1425
1426 (defvar gnus-backup-default-subscribed-newsgroups
1427   '("news.announce.newusers" "news.groups.questions" "gnu.emacs.gnus")
1428   "Default default new newsgroups the first time Gnus is run.
1429 Should be set in paths.el, and shouldn't be touched by the user.")
1430
1431 (defcustom gnus-local-domain nil
1432   "Local domain name without a host name.
1433 The DOMAINNAME environment variable is used instead if it is defined.
1434 If the function `system-name' returns the full Internet name, there is
1435 no need to set this variable."
1436   :group 'gnus-message
1437   :type '(choice (const :tag "default" nil)
1438                  string))
1439
1440 (defvar gnus-local-organization nil
1441   "String with a description of what organization (if any) the user belongs to.
1442 Obsolete variable; use `message-user-organization' instead.")
1443
1444 ;; Customization variables
1445
1446 (defcustom gnus-refer-article-method nil
1447   "Preferred method for fetching an article by Message-ID.
1448 If you are reading news from the local spool (with nnspool), fetching
1449 articles by Message-ID is painfully slow.  By setting this method to an
1450 nntp method, you might get acceptable results.
1451
1452 The value of this variable must be a valid select method as discussed
1453 in the documentation of `gnus-select-method'.
1454
1455 It can also be a list of select methods, as well as the special symbol
1456 `current', which means to use the current select method.  If it is a
1457 list, Gnus will try all the methods in the list until it finds a match."
1458   :group 'gnus-server
1459   :type '(choice (const :tag "default" nil)
1460                  (const current)
1461                  (const :tag "Google" (nnweb "refer" (nnweb-type google)))
1462                  gnus-select-method
1463                  (repeat :menu-tag "Try multiple"
1464                          :tag "Multiple"
1465                          :value (current (nnweb "refer" (nnweb-type google)))
1466                          (choice :tag "Method"
1467                                  (const current)
1468                                  (const :tag "Google"
1469                                         (nnweb "refer" (nnweb-type google)))
1470                                  gnus-select-method))))
1471
1472 (defcustom gnus-group-faq-directory
1473   '("/ftp@mirrors.aol.com:/pub/rtfm/usenet/"
1474     "/ftp@sunsite.doc.ic.ac.uk:/pub/usenet/news-faqs/"
1475     "/ftp@src.doc.ic.ac.uk:/usenet/news-FAQS/"
1476     "/ftp@ftp.seas.gwu.edu:/pub/rtfm/"
1477     "/ftp@ftp.pasteur.fr:/pub/FAQ/"
1478     "/ftp@rtfm.mit.edu:/pub/usenet/"
1479     "/ftp@ftp.uni-paderborn.de:/pub/FAQ/"
1480     "/ftp@ftp.sunet.se:/pub/usenet/"
1481     "/ftp@nctuccca.nctu.edu.tw:/pub/Documents/rtfm/usenet-by-group/"
1482     "/ftp@hwarang.postech.ac.kr:/pub/usenet/"
1483     "/ftp@ftp.hk.super.net:/mirror/faqs/")
1484   "*Directory where the group FAQs are stored.
1485 This will most commonly be on a remote machine, and the file will be
1486 fetched by ange-ftp.
1487
1488 This variable can also be a list of directories.  In that case, the
1489 first element in the list will be used by default.  The others can
1490 be used when being prompted for a site.
1491
1492 Note that Gnus uses an aol machine as the default directory.  If this
1493 feels fundamentally unclean, just think of it as a way to finally get
1494 something of value back from them.
1495
1496 If the default site is too slow, try one of these:
1497
1498    North America: mirrors.aol.com                /pub/rtfm/usenet
1499                   ftp.seas.gwu.edu               /pub/rtfm
1500                   rtfm.mit.edu                   /pub/usenet
1501    Europe:        ftp.uni-paderborn.de           /pub/FAQ
1502                   src.doc.ic.ac.uk               /usenet/news-FAQS
1503                   ftp.sunet.se                   /pub/usenet
1504                   ftp.pasteur.fr                 /pub/FAQ
1505    Asia:          nctuccca.nctu.edu.tw           /pub/Documents/rtfm/usenet-by-group/
1506                   hwarang.postech.ac.kr          /pub/usenet
1507                   ftp.hk.super.net               /mirror/faqs"
1508   :group 'gnus-group-various
1509   :type '(choice directory
1510                  (repeat directory)))
1511
1512 (defcustom gnus-group-charter-alist
1513   '(("no" . (concat "http://no.news-admin.org/charter/" name ".txt"))
1514     ("de" . (concat "http://purl.net/charta/" name ".html"))
1515     ("dk" . (concat "http://www.usenet.dk/grupper.pl?get=" name))
1516     ("england" . (concat "http://england.news-admin.org/charters/" name))
1517     ("fr" . (concat "http://www.usenet-fr.net/fur/chartes/" name ".html"))
1518     ("europa" . (concat "http://www.europa.usenet.eu.org/chartas/charta-en-"
1519                         (gnus-replace-in-string name "europa\\." "") ".html"))
1520     ("nl" . (concat "http://www.xs4all.nl/~sister/usenet/charters/" name))
1521     ("aus" . (concat "http://aus.news-admin.org/groupinfo.cgi/" name))
1522     ("pl" . (concat "http://www.usenet.pl/opisy/" name))
1523     ("ch" . (concat "http://www.use-net.ch/Usenet/charter.html#" name))
1524     ("at" . (concat "http://www.usenet.at/chartas/" name "/charta"))
1525     ("uk" . (concat "http://www.usenet.org.uk/" name ".html"))
1526     ("dfw" . (concat "http://www.cirr.com/dfw/charters/" name ".html"))
1527     ("se" . (concat "http://www.usenet-se.net/Reglementen/"
1528                     (gnus-replace-in-string name "\\." "_") ".html"))
1529     ("milw" . (concat "http://usenet.mil.wi.us/"
1530                       (gnus-replace-in-string name "milw\\." "") "-charter"))
1531     ("ca" . (concat "http://www.sbay.org/ca/charter-" name ".html"))
1532     ("netins" . (concat "http://www.netins.net/usenet/charter/"
1533                         (gnus-replace-in-string name "\\." "-") "-charter.html")))
1534   "*An alist of (HIERARCHY . FORM) pairs used to construct the URL of a charter.
1535 When FORM is evaluated `name' is bound to the name of the group."
1536   :version "22.1"
1537   :group 'gnus-group-various
1538   :type '(repeat (cons (string :tag "Hierarchy") (sexp :tag "Form"))))
1539 (put 'gnus-group-charter-alist 'risky-local-variable t)
1540
1541 (defcustom gnus-group-fetch-control-use-browse-url nil
1542   "*Non-nil means that control messages are displayed using `browse-url'.
1543 Otherwise they are fetched with ange-ftp and displayed in an ephemeral
1544 group."
1545   :version "22.1"
1546   :group 'gnus-group-various
1547   :type 'boolean)
1548
1549 (defcustom gnus-use-cross-reference t
1550   "*Non-nil means that cross referenced articles will be marked as read.
1551 If nil, ignore cross references.  If t, mark articles as read in
1552 subscribed newsgroups.  If neither t nor nil, mark as read in all
1553 newsgroups."
1554   :group 'gnus-server
1555   :type '(choice (const :tag "off" nil)
1556                  (const :tag "subscribed" t)
1557                  (sexp :format "all"
1558                        :value always)))
1559
1560 (defcustom gnus-process-mark ?#
1561   "*Process mark."
1562   :group 'gnus-group-visual
1563   :group 'gnus-summary-marks
1564   :type 'character)
1565
1566 (defcustom gnus-large-newsgroup 200
1567   "*The number of articles which indicates a large newsgroup.
1568 If the number of articles in a newsgroup is greater than this value,
1569 confirmation is required for selecting the newsgroup.
1570 If it is nil, no confirmation is required."
1571   :group 'gnus-group-select
1572   :type '(choice (const :tag "No limit" nil)
1573                  integer))
1574
1575 (defcustom gnus-use-long-file-name (not (memq system-type '(usg-unix-v)))
1576   "*Non-nil means that the default name of a file to save articles in is the group name.
1577 If it's nil, the directory form of the group name is used instead.
1578
1579 If this variable is a list, and the list contains the element
1580 `not-score', long file names will not be used for score files; if it
1581 contains the element `not-save', long file names will not be used for
1582 saving; and if it contains the element `not-kill', long file names
1583 will not be used for kill files.
1584
1585 Note that the default for this variable varies according to what system
1586 type you're using.  On `usg-unix-v' and `xenix' this variable defaults
1587 to nil while on all other systems it defaults to t."
1588   :group 'gnus-start
1589   :type '(radio (sexp :format "Non-nil\n"
1590                       :match (lambda (widget value)
1591                                (and value (not (listp value))))
1592                       :value t)
1593                 (const nil)
1594                 (checklist (const :format "%v " not-score)
1595                            (const :format "%v " not-save)
1596                            (const not-kill))))
1597
1598 (defcustom gnus-kill-files-directory gnus-directory
1599   "*Name of the directory where kill files will be stored (default \"~/News\")."
1600   :group 'gnus-score-files
1601   :group 'gnus-score-kill
1602   :type 'directory)
1603
1604 (defcustom gnus-save-score nil
1605   "*If non-nil, save group scoring info."
1606   :group 'gnus-score-various
1607   :group 'gnus-start
1608   :type 'boolean)
1609
1610 (defcustom gnus-use-undo t
1611   "*If non-nil, allow undoing in Gnus group mode buffers."
1612   :group 'gnus-meta
1613   :type 'boolean)
1614
1615 (defcustom gnus-use-adaptive-scoring nil
1616   "*If non-nil, use some adaptive scoring scheme.
1617 If a list, then the values `word' and `line' are meaningful.  The
1618 former will perform adaption on individual words in the subject
1619 header while `line' will perform adaption on several headers."
1620   :group 'gnus-meta
1621   :group 'gnus-score-adapt
1622   :type '(set (const word) (const line)))
1623
1624 (defcustom gnus-use-cache 'passive
1625   "*If nil, Gnus will ignore the article cache.
1626 If `passive', it will allow entering (and reading) articles
1627 explicitly entered into the cache.  If anything else, use the
1628 cache to the full extent of the law."
1629   :group 'gnus-meta
1630   :group 'gnus-cache
1631   :type '(choice (const :tag "off" nil)
1632                  (const :tag "passive" passive)
1633                  (const :tag "active" t)))
1634
1635 (defcustom gnus-use-trees nil
1636   "*If non-nil, display a thread tree buffer."
1637   :group 'gnus-meta
1638   :type 'boolean)
1639
1640 (defcustom gnus-keep-backlog 20
1641   "*If non-nil, Gnus will keep read articles for later re-retrieval.
1642 If it is a number N, then Gnus will only keep the last N articles
1643 read.  If it is neither nil nor a number, Gnus will keep all read
1644 articles.  This is not a good idea."
1645   :group 'gnus-meta
1646   :type '(choice (const :tag "off" nil)
1647                  integer
1648                  (sexp :format "all"
1649                        :value t)))
1650
1651 (defcustom gnus-use-nocem nil
1652   "*If non-nil, Gnus will read NoCeM cancel messages.
1653 You can also set this variable to a positive number as a group level.
1654 In that case, Gnus scans NoCeM messages when checking new news if this
1655 value is not exceeding a group level that you specify as the prefix
1656 argument to some commands, e.g. `gnus', `gnus-group-get-new-news', etc.
1657 Otherwise, Gnus does not scan NoCeM messages if you specify a group
1658 level to those commands."
1659   :group 'gnus-meta
1660   :type '(choice
1661           (const :tag "off" nil)
1662           (const :tag "on" t)
1663           (list :convert-widget
1664                 (lambda (widget)
1665                   (list 'integer :tag "group level"
1666                         :value (if (boundp 'gnus-level-default-subscribed)
1667                                    gnus-level-default-subscribed
1668                                  3))))))
1669
1670 (defcustom gnus-suppress-duplicates nil
1671   "*If non-nil, Gnus will mark duplicate copies of the same article as read."
1672   :group 'gnus-meta
1673   :type 'boolean)
1674
1675 (defcustom gnus-use-scoring t
1676   "*If non-nil, enable scoring."
1677   :group 'gnus-meta
1678   :type 'boolean)
1679
1680 (defcustom gnus-summary-prepare-exit-hook
1681   '(gnus-summary-expire-articles)
1682   "*A hook called when preparing to exit from the summary buffer.
1683 It calls `gnus-summary-expire-articles' by default."
1684   :group 'gnus-summary-exit
1685   :type 'hook)
1686
1687 (defcustom gnus-novice-user t
1688   "*Non-nil means that you are a Usenet novice.
1689 If non-nil, verbose messages may be displayed and confirmations may be
1690 required."
1691   :group 'gnus-meta
1692   :type 'boolean)
1693
1694 (defcustom gnus-expert-user nil
1695   "*Non-nil means that you will never be asked for confirmation about anything.
1696 That doesn't mean *anything* anything; particularly destructive
1697 commands will still require prompting."
1698   :group 'gnus-meta
1699   :type 'boolean)
1700
1701 (defcustom gnus-interactive-catchup t
1702   "*If non-nil, require your confirmation when catching up a group."
1703   :group 'gnus-group-select
1704   :type 'boolean)
1705
1706 (defcustom gnus-interactive-exit t
1707   "*If non-nil, require your confirmation when exiting Gnus."
1708   :group 'gnus-exit
1709   :type 'boolean)
1710
1711 (defcustom gnus-extract-address-components 'gnus-extract-address-components
1712   "*Function for extracting address components from a From header.
1713 Two pre-defined function exist: `gnus-extract-address-components',
1714 which is the default, quite fast, and too simplistic solution, and
1715 `mail-extract-address-components', which works much better, but is
1716 slower."
1717   :group 'gnus-summary-format
1718   :type '(radio (function-item gnus-extract-address-components)
1719                 (function-item mail-extract-address-components)
1720                 (function :tag "Other")))
1721
1722 (defcustom gnus-carpal nil
1723   "*If non-nil, display clickable icons."
1724   :group 'gnus-meta
1725   :type 'boolean)
1726
1727 (defcustom gnus-shell-command-separator ";"
1728   "String used to separate shell commands."
1729   :group 'gnus-files
1730   :type 'string)
1731
1732 (defcustom gnus-valid-select-methods
1733   '(("nntp" post address prompt-address physical-address)
1734     ("nnspool" post address)
1735     ("nnvirtual" post-mail virtual prompt-address)
1736     ("nnmbox" mail respool address)
1737     ("nnml" post-mail respool address)
1738     ("nnmh" mail respool address)
1739     ("nndir" post-mail prompt-address physical-address)
1740     ("nneething" none address prompt-address physical-address)
1741     ("nndoc" none address prompt-address)
1742     ("nnbabyl" mail address respool)
1743     ("nnkiboze" post virtual)
1744     ("nnsoup" post-mail address)
1745     ("nndraft" post-mail)
1746     ("nnfolder" mail respool address)
1747     ("nngateway" post-mail address prompt-address physical-address)
1748     ("nnweb" none)
1749     ("nngoogle" post)
1750     ("nnslashdot" post)
1751     ("nnultimate" none)
1752     ("nnrss" none)
1753     ("nnwfm" none)
1754     ("nnwarchive" none)
1755     ("nnlistserv" none)
1756     ("nnagent" post-mail)
1757     ("nnimap" post-mail address prompt-address physical-address)
1758     ("nnmaildir" mail respool address)
1759     ("nnnil" none))
1760   "*An alist of valid select methods.
1761 The first element of each list lists should be a string with the name
1762 of the select method.  The other elements may be the category of
1763 this method (i. e., `post', `mail', `none' or whatever) or other
1764 properties that this method has (like being respoolable).
1765 If you implement a new select method, all you should have to change is
1766 this variable.  I think."
1767   :group 'gnus-server
1768   :type '(repeat (group (string :tag "Name")
1769                         (radio-button-choice (const :format "%v " post)
1770                                              (const :format "%v " mail)
1771                                              (const :format "%v " none)
1772                                              (const post-mail))
1773                         (checklist :inline t
1774                                    (const :format "%v " address)
1775                                    (const :format "%v " prompt-address)
1776                                    (const :format "%v " physical-address)
1777                                    (const :format "%v " virtual)
1778                                    (const respool)))))
1779
1780 (defun gnus-redefine-select-method-widget ()
1781   "Recomputes the select-method widget based on the value of
1782 `gnus-valid-select-methods'."
1783   (define-widget 'gnus-select-method 'list
1784     "Widget for entering a select method."
1785     :value '(nntp "")
1786     :tag "Select Method"
1787     :args `((choice :tag "Method"
1788                     ,@(mapcar (lambda (entry)
1789                                 (list 'const :format "%v\n"
1790                                       (intern (car entry))))
1791                               gnus-valid-select-methods)
1792                     (symbol :tag "other"))
1793             (string :tag "Address")
1794             (repeat :tag "Options"
1795                     :inline t
1796                     (list :format "%v"
1797                           variable
1798                           (sexp :tag "Value"))))))
1799
1800 (gnus-redefine-select-method-widget)
1801
1802 (defcustom gnus-updated-mode-lines '(group article summary tree)
1803   "List of buffers that should update their mode lines.
1804 The list may contain the symbols `group', `article', `tree' and
1805 `summary'.  If the corresponding symbol is present, Gnus will keep
1806 that mode line updated with information that may be pertinent.
1807 If this variable is nil, screen refresh may be quicker."
1808   :group 'gnus-various
1809   :type '(set (const group)
1810               (const article)
1811               (const summary)
1812               (const tree)))
1813
1814 ;; Added by Keinonen Kari <kk85613@cs.tut.fi>.
1815 (defcustom gnus-mode-non-string-length nil
1816   "*Max length of mode-line non-string contents.
1817 If this is nil, Gnus will take space as is needed, leaving the rest
1818 of the mode line intact.  Note that the default of nil is unlikely
1819 to be desirable; see the manual for further details."
1820   :group 'gnus-various
1821   :type '(choice (const nil)
1822                  integer))
1823
1824 ;; There should be special validation for this.
1825 (define-widget 'gnus-email-address 'string
1826   "An email address.")
1827
1828 (gnus-define-group-parameter
1829  to-address
1830  :function-document
1831  "Return GROUP's to-address."
1832  :variable-document
1833  "*Alist of group regexps and correspondent to-addresses."
1834  :variable-group gnus-group-parameter
1835  :parameter-type '(gnus-email-address :tag "To Address")
1836  :parameter-document "\
1837 This will be used when doing followups and posts.
1838
1839 This is primarily useful in mail groups that represent closed
1840 mailing lists--mailing lists where it's expected that everybody that
1841 writes to the mailing list is subscribed to it.  Since using this
1842 parameter ensures that the mail only goes to the mailing list itself,
1843 it means that members won't receive two copies of your followups.
1844
1845 Using `to-address' will actually work whether the group is foreign or
1846 not.  Let's say there's a group on the server that is called
1847 `fa.4ad-l'.  This is a real newsgroup, but the server has gotten the
1848 articles from a mail-to-news gateway.  Posting directly to this group
1849 is therefore impossible--you have to send mail to the mailing list
1850 address instead.
1851
1852 The gnus-group-split mail splitting mechanism will behave as if this
1853 address was listed in gnus-group-split Addresses (see below).")
1854
1855 (gnus-define-group-parameter
1856  to-list
1857  :function-document
1858  "Return GROUP's to-list."
1859  :variable-document
1860  "*Alist of group regexps and correspondent to-lists."
1861  :variable-group gnus-group-parameter
1862  :parameter-type '(gnus-email-address :tag "To List")
1863  :parameter-document "\
1864 This address will be used when doing a `a' in the group.
1865
1866 It is totally ignored when doing a followup--except that if it is
1867 present in a news group, you'll get mail group semantics when doing
1868 `f'.
1869
1870 The gnus-group-split mail splitting mechanism will behave as if this
1871 address was listed in gnus-group-split Addresses (see below).")
1872
1873 (gnus-define-group-parameter
1874  subscribed
1875  :type bool
1876  :function-document
1877  "Return GROUP's subscription status."
1878  :variable-document
1879  "*Groups which are automatically considered subscribed."
1880  :variable-group gnus-group-parameter
1881  :parameter-type '(const :tag "Subscribed" t)
1882  :parameter-document "\
1883 Gnus assumed that you are subscribed to the To/List address.
1884
1885 When constructing a list of subscribed groups using
1886 `gnus-find-subscribed-addresses', Gnus includes the To address given
1887 above, or the list address (if the To address has not been set).")
1888
1889 (gnus-define-group-parameter
1890  auto-expire
1891  :type bool
1892  :function gnus-group-auto-expirable-p
1893  :function-document
1894  "Check whether GROUP is auto-expirable or not."
1895  :variable gnus-auto-expirable-newsgroups
1896  :variable-default nil
1897  :variable-document
1898  "*Groups in which to automatically mark read articles as expirable.
1899 If non-nil, this should be a regexp that should match all groups in
1900 which to perform auto-expiry.  This only makes sense for mail groups."
1901  :variable-group nnmail-expire
1902  :variable-type '(choice (const nil)
1903                          regexp)
1904  :parameter-type '(const :tag "Automatic Expire" t)
1905  :parameter-document
1906  "All articles that are read will be marked as expirable.")
1907
1908 (gnus-define-group-parameter
1909  total-expire
1910  :type bool
1911  :function gnus-group-total-expirable-p
1912  :function-document
1913  "Check whether GROUP is total-expirable or not."
1914  :variable gnus-total-expirable-newsgroups
1915  :variable-default nil
1916  :variable-document
1917  "*Groups in which to perform expiry of all read articles.
1918 Use with extreme caution.  All groups that match this regexp will be
1919 expiring - which means that all read articles will be deleted after
1920 \(say) one week.  (This only goes for mail groups and the like, of
1921 course.)"
1922  :variable-group nnmail-expire
1923  :variable-type '(choice (const nil)
1924                          regexp)
1925  :parameter-type '(const :tag "Total Expire" t)
1926  :parameter-document
1927  "All read articles will be put through the expiry process
1928
1929 This happens even if they are not marked as expirable.
1930 Use with caution.")
1931
1932 (gnus-define-group-parameter
1933  charset
1934  :function-document
1935  "Return the default charset of GROUP."
1936  :variable gnus-group-charset-alist
1937  :variable-default
1938  '(("\\(^\\|:\\)hk\\>\\|\\(^\\|:\\)tw\\>\\|\\<big5\\>" cn-big5)
1939    ("\\(^\\|:\\)cn\\>\\|\\<chinese\\>" cn-gb-2312)
1940    ("\\(^\\|:\\)fj\\>\\|\\(^\\|:\\)japan\\>" iso-2022-jp-2)
1941    ("\\(^\\|:\\)tnn\\>\\|\\(^\\|:\\)pin\\>\\|\\(^\\|:\\)sci.lang.japan" iso-2022-7bit)
1942    ("\\(^\\|:\\)relcom\\>" koi8-r)
1943    ("\\(^\\|:\\)fido7\\>" koi8-r)
1944    ("\\(^\\|:\\)\\(cz\\|hun\\|pl\\|sk\\|hr\\)\\>" iso-8859-2)
1945    ("\\(^\\|:\\)israel\\>" iso-8859-1)
1946    ("\\(^\\|:\\)han\\>" euc-kr)
1947    ("\\(^\\|:\\)alt.chinese.text.big5\\>" chinese-big5)
1948    ("\\(^\\|:\\)soc.culture.vietnamese\\>" vietnamese-viqr)
1949    ("\\(^\\|:\\)\\(comp\\|rec\\|alt\\|sci\\|soc\\|news\\|gnu\\|bofh\\)\\>" iso-8859-1))
1950  :variable-document
1951  "Alist of regexps (to match group names) and default charsets to be used when reading."
1952  :variable-group gnus-charset
1953  :variable-type '(repeat (list (regexp :tag "Group")
1954                                (symbol :tag "Charset")))
1955  :parameter-type '(symbol :tag "Charset")
1956  :parameter-document "\
1957 The default charset to use in the group.")
1958
1959 (gnus-define-group-parameter
1960  post-method
1961  :type list
1962  :function-document
1963  "Return a posting method for GROUP."
1964  :variable gnus-post-method-alist
1965  :variable-document
1966  "Alist of regexps (to match group names) and method to be used when
1967 posting an article."
1968  :variable-group gnus-group-foreign
1969  :parameter-type
1970  '(choice :tag "Posting Method"
1971           (const :tag "Use native server" native)
1972           (const :tag "Use current server" current)
1973           (list :convert-widget
1974                 (lambda (widget)
1975                   (list 'sexp :tag "Methods"
1976                         :value gnus-select-method))))
1977  :parameter-document
1978  "Posting method for this group.")
1979
1980 (gnus-define-group-parameter
1981  large-newsgroup-initial
1982  :type integer
1983  :function-document
1984  "Return GROUP's initial input of the number of articles."
1985  :variable-document
1986  "*Alist of group regexps and its initial input of the number of articles."
1987  :variable-group gnus-group-parameter
1988  :parameter-type '(choice :tag "Initial Input for Large Newsgroup"
1989                           (const :tag "All" nil)
1990                           (integer))
1991  :parameter-document "\
1992
1993 This number will be prompted as the initial value of the number of
1994 articles to list when the group is a large newsgroup (see
1995 `gnus-large-newsgroup').  If it is nil, the default value is the
1996 total number of articles in the group.")
1997
1998 ;; The Gnus registry's ignored groups
1999 (gnus-define-group-parameter
2000  registry-ignore
2001  :type list
2002  :function-document
2003  "Whether this group should be ignored by the registry."
2004  :variable gnus-registry-ignored-groups
2005  :variable-default nil
2006  :variable-document
2007  "*Groups in which the registry should be turned off."
2008  :variable-group gnus-registry
2009  :variable-type '(repeat
2010                   (list
2011                    (regexp :tag "Group Name Regular Expression")
2012                    (boolean :tag "Ignored")))
2013
2014  :parameter-type '(boolean :tag "Group Ignored by the Registry")
2015  :parameter-document
2016  "Whether the Gnus Registry should ignore this group.")
2017
2018 ;; group parameters for spam processing added by Ted Zlatanov <tzz@lifelogs.com>
2019 (defcustom gnus-install-group-spam-parameters t
2020   "*Disable the group parameters for spam detection.
2021 Enable if `G c' in XEmacs is giving you trouble, and make sure to submit a bug report."
2022   :version "22.1"
2023   :type 'boolean
2024   :group 'gnus-start)
2025
2026 (when gnus-install-group-spam-parameters
2027   (defvar gnus-group-spam-classification-spam t
2028     "Spam group classification (requires spam.el).
2029 This group contains spam messages.  On summary entry, unread messages
2030 will be marked as spam.  On summary exit, the specified spam
2031 processors will be invoked on spam-marked messages, then those
2032 messages will be expired, so the spam processor will only see a
2033 spam-marked message once.")
2034
2035   (defvar gnus-group-spam-classification-ham 'ask
2036     "The ham value for the spam group parameter (requires spam.el).
2037 On summary exit, the specified ham processors will be invoked on
2038 ham-marked messages.  Exercise caution, since the ham processor will
2039 see the same message more than once because there is no ham message
2040 registry.")
2041
2042   (gnus-define-group-parameter
2043    spam-contents
2044    :type list
2045    :function-document
2046    "The spam type (spam, ham, or neither) of the group."
2047    :variable gnus-spam-newsgroup-contents
2048    :variable-default nil
2049    :variable-document
2050    "*Group classification (spam, ham, or neither).  Only
2051 meaningful when spam.el is loaded.  If non-nil, this should be a
2052 list of group name regexps associated with a classification for
2053 each one.  In spam groups, new articles are marked as spam on
2054 summary entry.  There is other behavior associated with ham and
2055 no classification when spam.el is loaded - see the manual."
2056    :variable-group spam
2057    :variable-type '(repeat
2058                     (list :tag "Group contents spam/ham classification"
2059                           (regexp :tag "Group")
2060                           (choice
2061                            (variable-item gnus-group-spam-classification-spam)
2062                            (variable-item gnus-group-spam-classification-ham)
2063                            (const :tag "Unclassified" nil))))
2064
2065    :parameter-type '(list :tag "Group contents spam/ham classification"
2066                           (choice :tag "Group contents classification for spam sorting"
2067                                   (variable-item gnus-group-spam-classification-spam)
2068                                   (variable-item gnus-group-spam-classification-ham)
2069                                   (const :tag "Unclassified" nil)))
2070    :parameter-document
2071    "The spam classification (spam, ham, or neither) of this group.
2072 When a spam group is entered, all unread articles are marked as
2073 spam.  There is other behavior associated with ham and no
2074 classification when spam.el is loaded - see the manual.")
2075
2076   (gnus-define-group-parameter
2077    spam-resend-to
2078    :type list
2079    :function-document
2080    "The address to get spam resent (through spam-report-resend)."
2081    :variable gnus-spam-resend-to
2082    :variable-default nil
2083    :variable-document
2084    "The address to get spam resent (through spam-report-resend)."
2085    :variable-group spam
2086    :variable-type '(repeat
2087                     (list :tag "Group address for resending spam"
2088                           (regexp :tag "Group")
2089                           (string :tag "E-mail address for resending spam (requires the spam-use-resend exit processor)")))
2090    :parameter-type 'string :tag "E-mail address for resending spam (requires the spam-use-resend exit processor)"
2091    :parameter-document
2092    "The address to get spam resent (through spam-report-resend).")
2093
2094   (gnus-define-group-parameter
2095    ham-resend-to
2096    :type list
2097    :function-document
2098    "The address to get ham resent (through spam-report-resend)."
2099    :variable gnus-ham-resend-to
2100    :variable-default nil
2101    :variable-document
2102    "The address to get ham resent (through spam-report-resend)."
2103    :variable-group spam
2104    :variable-type '(repeat
2105                     (list :tag "Group address for resending ham"
2106                           (regexp :tag "Group")
2107                           (string :tag "E-mail address for resending ham (requires the spam-use-resend exit processor)")))
2108    :parameter-type 'string :tag "E-mail address for resending ham (requires the spam-use-resend exit processor)"
2109    :parameter-document
2110    "The address to get ham resent (through spam-report-resend).")
2111
2112   (defvar gnus-group-spam-exit-processor-ifile "ifile"
2113     "OBSOLETE: The ifile summary exit spam processor.")
2114
2115   (defvar gnus-group-spam-exit-processor-stat "stat"
2116     "OBSOLETE: The spam-stat summary exit spam processor.")
2117
2118   (defvar gnus-group-spam-exit-processor-bogofilter "bogofilter"
2119     "OBSOLETE: The Bogofilter summary exit spam processor.")
2120
2121   (defvar gnus-group-spam-exit-processor-blacklist "blacklist"
2122     "OBSOLETE: The Blacklist summary exit spam processor.")
2123
2124   (defvar gnus-group-spam-exit-processor-report-gmane "report-gmane"
2125     "OBSOLETE: The Gmane reporting summary exit spam processor.
2126 Only applicable to NNTP groups with articles from Gmane.  See spam-report.el")
2127
2128   (defvar gnus-group-spam-exit-processor-spamoracle "spamoracle-spam"
2129     "OBSOLETE: The spamoracle summary exit spam processor.")
2130
2131   (defvar gnus-group-ham-exit-processor-ifile "ifile-ham"
2132     "OBSOLETE: The ifile summary exit ham processor.
2133 Only applicable to non-spam (unclassified and ham) groups.")
2134
2135   (defvar gnus-group-ham-exit-processor-bogofilter "bogofilter-ham"
2136     "OBSOLETE: The Bogofilter summary exit ham processor.
2137 Only applicable to non-spam (unclassified and ham) groups.")
2138
2139   (defvar gnus-group-ham-exit-processor-stat "stat-ham"
2140     "OBSOLETE: The spam-stat summary exit ham processor.
2141 Only applicable to non-spam (unclassified and ham) groups.")
2142
2143   (defvar gnus-group-ham-exit-processor-whitelist "whitelist"
2144     "OBSOLETE: The whitelist summary exit ham processor.
2145 Only applicable to non-spam (unclassified and ham) groups.")
2146
2147   (defvar gnus-group-ham-exit-processor-BBDB "bbdb"
2148     "OBSOLETE: The BBDB summary exit ham processor.
2149 Only applicable to non-spam (unclassified and ham) groups.")
2150
2151   (defvar gnus-group-ham-exit-processor-copy "copy"
2152     "OBSOLETE: The ham copy exit ham processor.
2153 Only applicable to non-spam (unclassified and ham) groups.")
2154
2155   (defvar gnus-group-ham-exit-processor-spamoracle "spamoracle-ham"
2156     "OBSOLETE: The spamoracle summary exit ham processor.
2157 Only applicable to non-spam (unclassified and ham) groups.")
2158
2159   (gnus-define-group-parameter
2160    spam-process
2161    :type list
2162    :parameter-type
2163    '(choice
2164      :tag "Spam Summary Exit Processor"
2165      :value nil
2166      (list :tag "Spam Summary Exit Processor Choices"
2167            (set
2168             (const :tag "Spam: Bogofilter"    (spam spam-use-bogofilter))
2169             (const :tag "Spam: Blacklist"     (spam spam-use-blacklist))
2170             (const :tag "Spam: Bsfilter"      (spam spam-use-bsfilter))
2171             (const :tag "Spam: Gmane Report"  (spam spam-use-gmane))
2172             (const :tag "Spam: Resend Message"(spam spam-use-resend))
2173             (const :tag "Spam: ifile"         (spam spam-use-ifile))
2174             (const :tag "Spam: Spam Oracle"   (spam spam-use-spamoracle))
2175             (const :tag "Spam: Spam-stat"     (spam spam-use-stat))
2176             (const :tag "Spam: SpamAssassin"  (spam spam-use-spamassassin))
2177             (const :tag "Spam: CRM114"        (spam spam-use-crm114))
2178             (const :tag "Ham: BBDB"           (ham spam-use-BBDB))
2179             (const :tag "Ham: Bogofilter"     (ham spam-use-bogofilter))
2180             (const :tag "Ham: Bsfilter"       (ham spam-use-bsfilter))
2181             (const :tag "Ham: Copy"           (ham spam-use-ham-copy))
2182             (const :tag "Ham: Resend Message" (ham spam-use-resend))
2183             (const :tag "Ham: ifile"          (ham spam-use-ifile))
2184             (const :tag "Ham: Spam Oracle"    (ham spam-use-spamoracle))
2185             (const :tag "Ham: Spam-stat"      (ham spam-use-stat))
2186             (const :tag "Ham: SpamAssassin"   (ham spam-use-spamassassin))
2187             (const :tag "Ham: CRM114"         (ham spam-use-crm114))
2188             (const :tag "Ham: Whitelist"      (ham spam-use-whitelist))
2189             (variable-item gnus-group-spam-exit-processor-ifile)
2190             (variable-item gnus-group-spam-exit-processor-stat)
2191             (variable-item gnus-group-spam-exit-processor-bogofilter)
2192             (variable-item gnus-group-spam-exit-processor-blacklist)
2193             (variable-item gnus-group-spam-exit-processor-spamoracle)
2194             (variable-item gnus-group-spam-exit-processor-report-gmane)
2195             (variable-item gnus-group-ham-exit-processor-bogofilter)
2196             (variable-item gnus-group-ham-exit-processor-ifile)
2197             (variable-item gnus-group-ham-exit-processor-stat)
2198             (variable-item gnus-group-ham-exit-processor-whitelist)
2199             (variable-item gnus-group-ham-exit-processor-BBDB)
2200             (variable-item gnus-group-ham-exit-processor-spamoracle)
2201             (variable-item gnus-group-ham-exit-processor-copy))))
2202    :function-document
2203    "Which spam or ham processors will be applied when the summary is exited."
2204    :variable gnus-spam-process-newsgroups
2205    :variable-default nil
2206    :variable-document
2207    "*Groups in which to automatically process spam or ham articles with
2208 a backend on summary exit.  If non-nil, this should be a list of group
2209 name regexps that should match all groups in which to do automatic
2210 spam processing, associated with the appropriate processor."
2211    :variable-group spam
2212    :variable-type
2213    '(repeat :tag "Spam/Ham Processors"
2214             (list :tag "Spam Summary Exit Processor Choices"
2215                   (regexp :tag "Group Regexp")
2216                   (set
2217                    :tag "Spam/Ham Summary Exit Processor"
2218                    (const :tag "Spam: Bogofilter"    (spam spam-use-bogofilter))
2219                    (const :tag "Spam: Blacklist"     (spam spam-use-blacklist))
2220                    (const :tag "Spam: Bsfilter"      (spam spam-use-bsfilter))
2221                    (const :tag "Spam: Gmane Report"  (spam spam-use-gmane))
2222                    (const :tag "Spam: Resend Message"(spam spam-use-resend))
2223                    (const :tag "Spam: ifile"         (spam spam-use-ifile))
2224                    (const :tag "Spam: Spam-stat"     (spam spam-use-stat))
2225                    (const :tag "Spam: Spam Oracle"   (spam spam-use-spamoracle))
2226                    (const :tag "Spam: SpamAssassin"  (spam spam-use-spamassassin))
2227                    (const :tag "Spam: CRM114"        (spam spam-use-crm114))
2228                    (const :tag "Ham: BBDB"           (ham spam-use-BBDB))
2229                    (const :tag "Ham: Bogofilter"     (ham spam-use-bogofilter))
2230                    (const :tag "Ham: Bsfilter"       (ham spam-use-bsfilter))
2231                    (const :tag "Ham: Copy"           (ham spam-use-ham-copy))
2232                    (const :tag "Ham: Resend Message" (ham spam-use-resend))
2233                    (const :tag "Ham: ifile"          (ham spam-use-ifile))
2234                    (const :tag "Ham: Spam-stat"      (ham spam-use-stat))
2235                    (const :tag "Ham: Spam Oracle"    (ham spam-use-spamoracle))
2236                    (const :tag "Ham: SpamAssassin"   (ham spam-use-spamassassin))
2237                    (const :tag "Ham: CRM114"         (ham spam-use-crm114))
2238                    (const :tag "Ham: Whitelist"      (ham spam-use-whitelist))
2239                    (variable-item gnus-group-spam-exit-processor-ifile)
2240                    (variable-item gnus-group-spam-exit-processor-stat)
2241                    (variable-item gnus-group-spam-exit-processor-bogofilter)
2242                    (variable-item gnus-group-spam-exit-processor-blacklist)
2243                    (variable-item gnus-group-spam-exit-processor-spamoracle)
2244                    (variable-item gnus-group-spam-exit-processor-report-gmane)
2245                    (variable-item gnus-group-ham-exit-processor-bogofilter)
2246                    (variable-item gnus-group-ham-exit-processor-ifile)
2247                    (variable-item gnus-group-ham-exit-processor-stat)
2248                    (variable-item gnus-group-ham-exit-processor-whitelist)
2249                    (variable-item gnus-group-ham-exit-processor-BBDB)
2250                    (variable-item gnus-group-ham-exit-processor-spamoracle)
2251                    (variable-item gnus-group-ham-exit-processor-copy))))
2252
2253    :parameter-document
2254    "Which spam or ham processors will be applied when the summary is exited.")
2255
2256   (gnus-define-group-parameter
2257    spam-autodetect
2258    :type list
2259    :parameter-type
2260    '(boolean :tag "Spam autodetection")
2261    :function-document
2262    "Should spam be autodetected (with spam-split) in this group?"
2263    :variable gnus-spam-autodetect
2264    :variable-default nil
2265    :variable-document
2266    "*Groups in which spam should be autodetected when they are entered.
2267    Only unseen articles will be examined, unless
2268    spam-autodetect-recheck-messages is set."
2269    :variable-group spam
2270    :variable-type
2271    '(repeat
2272      :tag "Autodetection setting"
2273      (list
2274       (regexp :tag "Group Regexp")
2275       boolean))
2276    :parameter-document
2277    "Spam autodetection.
2278 Only unseen articles will be examined, unless
2279 spam-autodetect-recheck-messages is set.")
2280
2281   (gnus-define-group-parameter
2282    spam-autodetect-methods
2283    :type list
2284    :parameter-type
2285    '(choice :tag "Spam autodetection-specific methods"
2286      (const none)
2287      (const default)
2288      (set :tag "Use specific methods"
2289           (variable-item spam-use-blacklist)
2290           (variable-item spam-use-gmane-xref)
2291           (variable-item spam-use-regex-headers)
2292           (variable-item spam-use-regex-body)
2293           (variable-item spam-use-whitelist)
2294           (variable-item spam-use-BBDB)
2295           (variable-item spam-use-ifile)
2296           (variable-item spam-use-spamoracle)
2297           (variable-item spam-use-crm114)
2298           (variable-item spam-use-spamassassin)
2299           (variable-item spam-use-spamassassin-headers)
2300           (variable-item spam-use-bsfilter)
2301           (variable-item spam-use-bsfilter-headers)
2302           (variable-item spam-use-stat)
2303           (variable-item spam-use-blackholes)
2304           (variable-item spam-use-hashcash)
2305           (variable-item spam-use-bogofilter-headers)
2306           (variable-item spam-use-bogofilter)))
2307    :function-document
2308    "Methods to be used for autodetection in each group"
2309    :variable gnus-spam-autodetect-methods
2310    :variable-default nil
2311    :variable-document
2312    "*Methods for autodetecting spam per group.
2313 Requires the spam-autodetect parameter.  Only unseen articles
2314 will be examined, unless spam-autodetect-recheck-messages is
2315 set."
2316    :variable-group spam
2317    :variable-type
2318    '(repeat
2319      :tag "Autodetection methods"
2320      (list
2321       (regexp :tag "Group Regexp")
2322       (choice
2323        (const none)
2324        (const default)
2325        (set :tag "Use specific methods"
2326         (variable-item spam-use-blacklist)
2327         (variable-item spam-use-gmane-xref)
2328         (variable-item spam-use-regex-headers)
2329         (variable-item spam-use-regex-body)
2330         (variable-item spam-use-whitelist)
2331         (variable-item spam-use-BBDB)
2332         (variable-item spam-use-ifile)
2333         (variable-item spam-use-spamoracle)
2334         (variable-item spam-use-crm114)
2335         (variable-item spam-use-stat)
2336         (variable-item spam-use-blackholes)
2337         (variable-item spam-use-hashcash)
2338         (variable-item spam-use-spamassassin)
2339         (variable-item spam-use-spamassassin-headers)
2340         (variable-item spam-use-bsfilter)
2341         (variable-item spam-use-bsfilter-headers)
2342         (variable-item spam-use-bogofilter-headers)
2343         (variable-item spam-use-bogofilter)))))
2344      :parameter-document
2345    "Spam autodetection methods.
2346 Requires the spam-autodetect parameter.  Only unseen articles
2347 will be examined, unless spam-autodetect-recheck-messages is
2348 set.")
2349
2350   (gnus-define-group-parameter
2351    spam-process-destination
2352    :type list
2353    :parameter-type
2354    '(choice :tag "Destination for spam-processed articles at summary exit"
2355             (string :tag "Move to a group")
2356             (repeat :tag "Move to multiple groups"
2357                     (string :tag "Destination group"))
2358             (const :tag "Expire" nil))
2359    :function-document
2360    "Where spam-processed articles will go at summary exit."
2361    :variable gnus-spam-process-destinations
2362    :variable-default nil
2363    :variable-document
2364    "*Groups in which to explicitly send spam-processed articles to
2365 another group, or expire them (the default).  If non-nil, this should
2366 be a list of group name regexps that should match all groups in which
2367 to do spam-processed article moving, associated with the destination
2368 group or nil for explicit expiration.  This only makes sense for
2369 mail groups."
2370    :variable-group spam
2371    :variable-type
2372    '(repeat
2373      :tag "Spam-processed articles destination"
2374      (list
2375       (regexp :tag "Group Regexp")
2376       (choice
2377        :tag "Destination for spam-processed articles at summary exit"
2378        (string :tag "Move to a group")
2379        (repeat :tag "Move to multiple groups"
2380                (string :tag "Destination group"))
2381        (const :tag "Expire" nil))))
2382    :parameter-document
2383    "Where spam-processed articles will go at summary exit.")
2384
2385   (gnus-define-group-parameter
2386    ham-process-destination
2387    :type list
2388    :parameter-type
2389    '(choice
2390      :tag "Destination for ham articles at summary exit from a spam group"
2391      (string :tag "Move to a group")
2392      (repeat :tag "Move to multiple groups"
2393              (string :tag "Destination group"))
2394      (const :tag "Respool" respool)
2395      (const :tag "Do nothing" nil))
2396    :function-document
2397    "Where ham articles will go at summary exit from a spam group."
2398    :variable gnus-ham-process-destinations
2399    :variable-default nil
2400    :variable-document
2401    "*Groups in which to explicitly send ham articles to
2402 another group, or do nothing (the default).  If non-nil, this should
2403 be a list of group name regexps that should match all groups in which
2404 to do ham article moving, associated with the destination
2405 group or nil for explicit ignoring.  This only makes sense for
2406 mail groups, and only works in spam groups."
2407    :variable-group spam
2408    :variable-type
2409    '(repeat
2410      :tag "Ham articles destination"
2411      (list
2412       (regexp :tag "Group Regexp")
2413       (choice
2414        :tag "Destination for ham articles at summary exit from spam group"
2415        (string :tag "Move to a group")
2416        (repeat :tag "Move to multiple groups"
2417                 (string :tag "Destination group"))
2418        (const :tag "Respool" respool)
2419        (const :tag "Expire" nil))))
2420    :parameter-document
2421    "Where ham articles will go at summary exit from a spam group.")
2422
2423   (gnus-define-group-parameter
2424    ham-marks
2425    :type 'list
2426    :parameter-type '(list :tag "Ham mark choices"
2427                           (set
2428                            (variable-item gnus-del-mark)
2429                            (variable-item gnus-read-mark)
2430                            (variable-item gnus-ticked-mark)
2431                            (variable-item gnus-killed-mark)
2432                            (variable-item gnus-kill-file-mark)
2433                            (variable-item gnus-low-score-mark)))
2434
2435    :parameter-document
2436    "Marks considered ham (positively not spam).  Such articles will be
2437 processed as ham (non-spam) on group exit.  When nil, the global
2438 spam-ham-marks variable takes precedence."
2439    :variable-default '((".*" ((gnus-del-mark
2440                                gnus-read-mark
2441                                gnus-killed-mark
2442                                gnus-kill-file-mark
2443                                gnus-low-score-mark))))
2444    :variable-group spam
2445    :variable-document
2446    "*Groups in which to explicitly set the ham marks to some value.")
2447
2448   (gnus-define-group-parameter
2449    spam-marks
2450    :type 'list
2451    :parameter-type '(list :tag "Spam mark choices"
2452                           (set
2453                            (variable-item gnus-spam-mark)
2454                            (variable-item gnus-killed-mark)
2455                            (variable-item gnus-kill-file-mark)
2456                            (variable-item gnus-low-score-mark)))
2457
2458    :parameter-document
2459    "Marks considered spam.
2460 Such articles will be processed as spam on group exit.  When nil, the global
2461 spam-spam-marks variable takes precedence."
2462    :variable-default '((".*" ((gnus-spam-mark))))
2463    :variable-group spam
2464    :variable-document
2465    "*Groups in which to explicitly set the spam marks to some value."))
2466
2467 (defcustom gnus-group-uncollapsed-levels 1
2468   "Number of group name elements to leave alone when making a short group name."
2469   :group 'gnus-group-visual
2470   :type 'integer)
2471
2472 (defcustom gnus-group-use-permanent-levels nil
2473   "*If non-nil, once you set a level, Gnus will use this level."
2474   :group 'gnus-group-levels
2475   :type 'boolean)
2476
2477 ;; Hooks.
2478
2479 (defcustom gnus-load-hook nil
2480   "A hook run while Gnus is loaded."
2481   :group 'gnus-start
2482   :type 'hook)
2483
2484 (defcustom gnus-apply-kill-hook '(gnus-apply-kill-file)
2485   "A hook called to apply kill files to a group.
2486 This hook is intended to apply a kill file to the selected newsgroup.
2487 The function `gnus-apply-kill-file' is called by default.
2488
2489 Since a general kill file is too heavy to use only for a few
2490 newsgroups, I recommend you to use a lighter hook function.  For
2491 example, if you'd like to apply a kill file to articles which contains
2492 a string `rmgroup' in subject in newsgroup `control', you can use the
2493 following hook:
2494
2495  (setq gnus-apply-kill-hook
2496       (list
2497         (lambda ()
2498           (cond ((string-match \"control\" gnus-newsgroup-name)
2499                  (gnus-kill \"Subject\" \"rmgroup\")
2500                  (gnus-expunge \"X\"))))))"
2501   :group 'gnus-score-kill
2502   :options '(gnus-apply-kill-file)
2503   :type 'hook)
2504
2505 (defcustom gnus-group-change-level-function nil
2506   "Function run when a group level is changed.
2507 It is called with three parameters -- GROUP, LEVEL and OLDLEVEL."
2508   :group 'gnus-group-levels
2509   :type '(choice (const nil)
2510                  function))
2511
2512 ;;; Face thingies.
2513
2514 (defcustom gnus-visual
2515   '(summary-highlight group-highlight article-highlight
2516                       mouse-face
2517                       summary-menu group-menu article-menu
2518                       tree-highlight menu highlight
2519                       browse-menu server-menu
2520                       page-marker tree-menu binary-menu pick-menu)
2521   "*Enable visual features.
2522 If `visual' is disabled, there will be no menus and few faces.  Most of
2523 the visual customization options below will be ignored.  Gnus will use
2524 less space and be faster as a result.
2525
2526 This variable can also be a list of visual elements to switch on.  For
2527 instance, to switch off all visual things except menus, you can say:
2528
2529    (setq gnus-visual '(menu))
2530
2531 Valid elements include `summary-highlight', `group-highlight',
2532 `article-highlight', `mouse-face', `summary-menu', `group-menu',
2533 `article-menu', `tree-highlight', `menu', `highlight', `browse-menu',
2534 `server-menu', `page-marker', `tree-menu', `binary-menu', and`pick-menu'."
2535   :group 'gnus-meta
2536   :group 'gnus-visual
2537   :type '(set (const summary-highlight)
2538               (const group-highlight)
2539               (const article-highlight)
2540               (const mouse-face)
2541               (const summary-menu)
2542               (const group-menu)
2543               (const article-menu)
2544               (const tree-highlight)
2545               (const menu)
2546               (const highlight)
2547               (const browse-menu)
2548               (const server-menu)
2549               (const page-marker)
2550               (const tree-menu)
2551               (const binary-menu)
2552               (const pick-menu)))
2553
2554 ;; Byte-compiler warning.
2555 (defvar gnus-visual)
2556 ;; Find out whether the gnus-visual TYPE is wanted.
2557 (defun gnus-visual-p (&optional type class)
2558   (and gnus-visual                      ; Has to be non-nil, at least.
2559        (if (not type)                   ; We don't care about type.
2560            gnus-visual
2561          (if (listp gnus-visual)        ; It's a list, so we check it.
2562              (or (memq type gnus-visual)
2563                  (memq class gnus-visual))
2564            t))))
2565
2566 (defcustom gnus-mouse-face
2567   (condition-case ()
2568       (if (gnus-visual-p 'mouse-face 'highlight)
2569           (if (boundp 'gnus-mouse-face)
2570               (or gnus-mouse-face 'highlight)
2571             'highlight)
2572         'default)
2573     (error 'highlight))
2574   "*Face used for group or summary buffer mouse highlighting.
2575 The line beneath the mouse pointer will be highlighted with this
2576 face."
2577   :group 'gnus-visual
2578   :type 'face)
2579
2580 (defcustom gnus-article-save-directory gnus-directory
2581   "*Name of the directory articles will be saved in (default \"~/News\")."
2582   :group 'gnus-article-saving
2583   :type 'directory)
2584
2585 (defvar gnus-plugged t
2586   "Whether Gnus is plugged or not.")
2587
2588 (defcustom gnus-agent-cache t
2589   "Controls use of the agent cache while plugged.
2590 When set, Gnus will prefer using the locally stored content rather
2591 than re-fetching it from the server.  You also need to enable
2592 `gnus-agent' for this to have any affect."
2593   :version "22.1"
2594   :group 'gnus-agent
2595   :type 'boolean)
2596
2597 (defcustom gnus-default-charset 'undecided
2598   "Default charset assumed to be used when viewing non-ASCII characters.
2599 This variable is overridden on a group-to-group basis by the
2600 `gnus-group-charset-alist' variable and is only used on groups not
2601 covered by that variable."
2602   :type 'symbol
2603   :group 'gnus-charset)
2604
2605 ;; Fixme: Doc reference to agent.
2606 (defcustom gnus-agent t
2607   "Whether we want to use the Gnus agent or not.
2608
2609 You may customize gnus-agent to disable its use.  However, some
2610 back ends have started to use the agent as a client-side cache.
2611 Disabling the agent may result in noticeable loss of performance."
2612   :version "22.1"
2613   :group 'gnus-agent
2614   :type 'boolean)
2615
2616 (defcustom gnus-other-frame-function 'gnus
2617   "Function called by the command `gnus-other-frame'."
2618   :group 'gnus-start
2619   :type '(choice (function-item gnus)
2620                  (function-item gnus-no-server)
2621                  (function-item gnus-slave)
2622                  (function-item gnus-slave-no-server)))
2623
2624 (defcustom gnus-other-frame-parameters nil
2625   "Frame parameters used by `gnus-other-frame' to create a Gnus frame.
2626 This should be an alist for Emacs, or a plist for XEmacs."
2627   :group 'gnus-start
2628   :type (if (featurep 'xemacs)
2629             '(repeat (list :inline t :format "%v"
2630                            (symbol :tag "Property")
2631                            (sexp :tag "Value")))
2632           '(repeat (cons :format "%v"
2633                          (symbol :tag "Parameter")
2634                          (sexp :tag "Value")))))
2635
2636 (defcustom gnus-user-agent '(emacs gnus type)
2637   "Which information should be exposed in the User-Agent header.
2638
2639 Can be a list of symbols or a string.  Valid symbols are `gnus'
2640 \(show Gnus version\) and `emacs' \(show Emacs version\).  In
2641 addition to the Emacs version, you can add `codename' \(show
2642 \(S\)XEmacs codename\) or either `config' \(show system
2643 configuration\) or `type' \(show system type\).  If you set it to
2644 a string, be sure to use a valid format, see RFC 2616."
2645
2646   :version "22.1"
2647   :group 'gnus-message
2648   :type '(choice (list (set :inline t
2649                             (const gnus  :tag "Gnus version")
2650                             (const emacs :tag "Emacs version")
2651                             (choice :tag "system"
2652                                     (const type   :tag "system type")
2653                                     (const config :tag "system configuration"))
2654                             (const codename :tag "Emacs codename")))
2655                  (string)))
2656
2657 ;; Convert old (< 2005-01-10) symbol type values:
2658 (when (symbolp gnus-user-agent)
2659   (setq gnus-user-agent
2660         (cond ((eq gnus-user-agent 'emacs-gnus-config)
2661                '(emacs gnus config))
2662               ((eq gnus-user-agent 'emacs-gnus-type)
2663                '(emacs gnus type))
2664               ((eq gnus-user-agent 'emacs-gnus)
2665                '(emacs gnus))
2666               ((eq gnus-user-agent 'gnus)
2667                '(gnus))
2668               (t gnus-user-agent)))
2669   (gnus-message 1 "Converted `gnus-user-agent' to `%s'." gnus-user-agent)
2670   (sit-for 1)
2671   (if (get 'gnus-user-agent 'saved-value)
2672       (customize-save-variable 'gnus-user-agent gnus-user-agent)
2673     (gnus-message 1 "Edit your init file to make this change permanent.")
2674     (sit-for 2)))
2675
2676 \f
2677 ;;; Internal variables
2678
2679 (defvar gnus-agent-gcc-header "X-Gnus-Agent-Gcc")
2680 (defvar gnus-agent-meta-information-header "X-Gnus-Agent-Meta-Information")
2681 (defvar gnus-agent-method-p-cache nil
2682   ; Reset each time gnus-agent-covered-methods is changed else
2683   ; gnus-agent-method-p may mis-report a methods status.
2684   )
2685 (defvar gnus-agent-target-move-group-header "X-Gnus-Agent-Move-To")
2686 (defvar gnus-draft-meta-information-header "X-Draft-From")
2687 (defvar gnus-group-get-parameter-function 'gnus-group-get-parameter)
2688 (defvar gnus-original-article-buffer " *Original Article*")
2689 (defvar gnus-newsgroup-name nil)
2690 (defvar gnus-ephemeral-servers nil)
2691 (defvar gnus-server-method-cache nil)
2692
2693 (defvar gnus-agent-fetching nil
2694   "Whether Gnus agent is in fetching mode.")
2695
2696 (defvar gnus-agent-covered-methods nil
2697   "A list of servers, NOT methods, showing which servers are covered by the agent.")
2698
2699 (defvar gnus-command-method nil
2700   "Dynamically bound variable that says what the current back end is.")
2701
2702 (defvar gnus-current-select-method nil
2703   "The current method for selecting a newsgroup.")
2704
2705 (defvar gnus-tree-buffer "*Tree*"
2706   "Buffer where Gnus thread trees are displayed.")
2707
2708 ;; Dummy variable.
2709 (defvar gnus-use-generic-from nil)
2710
2711 ;; Variable holding the user answers to all method prompts.
2712 (defvar gnus-method-history nil)
2713
2714 ;; Variable holding the user answers to all mail method prompts.
2715 (defvar gnus-mail-method-history nil)
2716
2717 ;; Variable holding the user answers to all group prompts.
2718 (defvar gnus-group-history nil)
2719
2720 (defvar gnus-server-alist nil
2721   "List of available servers.")
2722
2723 (defcustom gnus-cache-directory
2724   (nnheader-concat gnus-directory "cache/")
2725   "*The directory where cached articles will be stored."
2726   :group 'gnus-cache
2727   :type 'directory)
2728
2729 (defvar gnus-predefined-server-alist
2730   `(("cache"
2731      nnspool "cache"
2732      (nnspool-spool-directory ,gnus-cache-directory)
2733      (nnspool-nov-directory ,gnus-cache-directory)
2734      (nnspool-active-file
2735       ,(nnheader-concat gnus-cache-directory "active"))))
2736   "List of predefined (convenience) servers.")
2737
2738 (defvar gnus-topic-indentation "") ;; Obsolete variable.
2739
2740 (defconst gnus-article-mark-lists
2741   '((marked . tick) (replied . reply)
2742     (expirable . expire) (killed . killed)
2743     (bookmarks . bookmark) (dormant . dormant)
2744     (scored . score) (saved . save)
2745     (cached . cache) (downloadable . download)
2746     (unsendable . unsend) (forwarded . forward)
2747     (recent . recent) (seen . seen)))
2748
2749 (defconst gnus-article-special-mark-lists
2750   '((seen range)
2751     (killed range)
2752     (bookmark tuple)
2753     (score tuple)))
2754
2755 ;; Propagate flags to server, with the following exceptions:
2756 ;; `seen' is private to each gnus installation
2757 ;; `cache' is a internal gnus flag for each gnus installation
2758 ;; `download' is a agent flag private to each gnus installation
2759 ;; `unsend' are for nndraft groups only
2760 ;; `score' is not a proper mark
2761 ;; `bookmark': don't propagated it, or fix the bug in update-mark.
2762 (defconst gnus-article-unpropagated-mark-lists
2763   '(seen cache download unsend score bookmark)
2764   "Marks that shouldn't be propagated to back ends.
2765 Typical marks are those that make no sense in a standalone back end,
2766 such as a mark that says whether an article is stored in the cache
2767 \(which doesn't make sense in a standalone back end).")
2768
2769 (defvar gnus-headers-retrieved-by nil)
2770 (defvar gnus-article-reply nil)
2771 (defvar gnus-override-method nil)
2772 (defvar gnus-opened-servers nil)
2773
2774 (defvar gnus-current-kill-article nil)
2775
2776 (defvar gnus-have-read-active-file nil)
2777
2778 (defconst gnus-maintainer
2779   "bugs@gnus.org (The Gnus Bugfixing Girls + Boys)"
2780   "The mail address of the Gnus maintainers.")
2781
2782 (defvar gnus-info-nodes
2783   '((gnus-group-mode "(gnus)Group Buffer")
2784     (gnus-summary-mode "(gnus)Summary Buffer")
2785     (gnus-article-mode "(gnus)Article Buffer")
2786     (gnus-server-mode "(gnus)Server Buffer")
2787     (gnus-browse-mode "(gnus)Browse Foreign Server")
2788     (gnus-tree-mode "(gnus)Tree Display"))
2789   "Alist of major modes and related Info nodes.")
2790
2791 (defvar gnus-group-buffer "*Group*")
2792 (defvar gnus-summary-buffer "*Summary*")
2793 (defvar gnus-article-buffer "*Article*")
2794 (defvar gnus-server-buffer "*Server*")
2795
2796 (defvar gnus-slave nil
2797   "Whether this Gnus is a slave or not.")
2798
2799 (defvar gnus-batch-mode nil
2800   "Whether this Gnus is running in batch mode or not.")
2801
2802 (defvar gnus-variable-list
2803   '(gnus-newsrc-options gnus-newsrc-options-n
2804                         gnus-newsrc-last-checked-date
2805                         gnus-newsrc-alist gnus-server-alist
2806                         gnus-killed-list gnus-zombie-list
2807                         gnus-topic-topology gnus-topic-alist
2808                         gnus-format-specs)
2809   "Gnus variables saved in the quick startup file.")
2810
2811 (defvar gnus-newsrc-alist nil
2812   "Assoc list of read articles.
2813 `gnus-newsrc-hashtb' should be kept so that both hold the same information.")
2814
2815 (defvar gnus-registry-alist nil
2816   "Assoc list of registry data.
2817 gnus-registry.el will populate this if it's loaded.")
2818
2819 (defvar gnus-newsrc-hashtb nil
2820   "Hashtable of `gnus-newsrc-alist'.")
2821
2822 (defvar gnus-killed-list nil
2823   "List of killed newsgroups.")
2824
2825 (defvar gnus-killed-hashtb nil
2826   "Hash table equivalent of `gnus-killed-list'.")
2827
2828 (defvar gnus-zombie-list nil
2829   "List of almost dead newsgroups.")
2830
2831 (defvar gnus-description-hashtb nil
2832   "Descriptions of newsgroups.")
2833
2834 (defvar gnus-list-of-killed-groups nil
2835   "List of newsgroups that have recently been killed by the user.")
2836
2837 (defvar gnus-active-hashtb nil
2838   "Hashtable of active articles.")
2839
2840 (defvar gnus-moderated-hashtb nil
2841   "Hashtable of moderated newsgroups.")
2842
2843 ;; Save window configuration.
2844 (defvar gnus-prev-winconf nil)
2845
2846 (defvar gnus-reffed-article-number nil)
2847
2848 (defvar gnus-dead-summary nil)
2849
2850 (defvar gnus-invalid-group-regexp "[: `'\"/]\\|^$"
2851   "Regexp matching invalid groups.")
2852
2853 (defvar gnus-other-frame-object nil
2854   "A frame object which will be created by `gnus-other-frame'.")
2855
2856 ;;; End of variables.
2857
2858 ;; Define some autoload functions Gnus might use.
2859 (eval-and-compile
2860
2861   ;; This little mapcar goes through the list below and marks the
2862   ;; symbols in question as autoloaded functions.
2863   (mapc
2864    (lambda (package)
2865      (let ((interactive (nth 1 (memq ':interactive package))))
2866        (mapcar
2867         (lambda (function)
2868           (let (keymap)
2869             (when (consp function)
2870               (setq keymap (car (memq 'keymap function)))
2871               (setq function (car function)))
2872             (unless (fboundp function)
2873               (autoload function (car package) nil interactive keymap))))
2874         (if (eq (nth 1 package) ':interactive)
2875             (nthcdr 3 package)
2876           (cdr package)))))
2877    '(("info" :interactive t Info-goto-node)
2878      ("pp" pp-to-string)
2879      ("qp" quoted-printable-decode-region quoted-printable-decode-string)
2880      ("ps-print" ps-print-preprint)
2881      ("message" :interactive t
2882       message-send-and-exit message-yank-original)
2883      ("babel" babel-as-string)
2884      ("nnmail" nnmail-split-fancy nnmail-article-group)
2885      ("nnvirtual" nnvirtual-catchup-group nnvirtual-convert-headers)
2886      ;; This is only used in message.el, which has an autoload.
2887      ("rmailout" rmail-output)
2888      ;; Next two used in gnus-util, which has autoloads, and contrib/sendmail.
2889      ("rmail" rmail-count-new-messages rmail-show-message
2890       ;; Next two only used in gnus-util.
2891       rmail-summary-exists rmail-select-summary)
2892      ;; Only used in gnus-util, which has an autoload.
2893      ("rmailsum" rmail-update-summary)
2894      ("gnus-audio" :interactive t gnus-audio-play)
2895      ("gnus-xmas" gnus-xmas-splash)
2896      ("gnus-soup" :interactive t
2897       gnus-group-brew-soup gnus-brew-soup gnus-soup-add-article
2898       gnus-soup-send-replies gnus-soup-save-areas gnus-soup-pack-packet)
2899      ("nnsoup" nnsoup-pack-replies)
2900      ("score-mode" :interactive t gnus-score-mode)
2901      ("gnus-mh" gnus-summary-save-article-folder
2902       gnus-Folder-save-name gnus-folder-save-name)
2903      ("gnus-mh" :interactive t gnus-summary-save-in-folder)
2904      ("gnus-demon" gnus-demon-add-nocem gnus-demon-add-scanmail
2905       gnus-demon-add-rescan gnus-demon-add-scan-timestamps
2906       gnus-demon-add-disconnection gnus-demon-add-handler
2907       gnus-demon-remove-handler)
2908      ("gnus-demon" :interactive t
2909       gnus-demon-init gnus-demon-cancel)
2910      ("gnus-fun" gnus-convert-gray-x-face-to-xpm gnus-display-x-face-in-from
2911       gnus-convert-image-to-gray-x-face gnus-convert-face-to-png
2912       gnus-face-from-file)
2913      ("gnus-salt" gnus-highlight-selected-tree gnus-possibly-generate-tree
2914       gnus-tree-open gnus-tree-close gnus-carpal-setup-buffer)
2915      ("gnus-nocem" gnus-nocem-scan-groups gnus-nocem-close
2916       gnus-nocem-unwanted-article-p)
2917      ("gnus-srvr" gnus-enter-server-buffer gnus-server-set-info
2918       gnus-server-server-name)
2919      ("gnus-srvr" gnus-browse-foreign-server)
2920      ("gnus-cite" :interactive t
2921       gnus-article-highlight-citation gnus-article-hide-citation-maybe
2922       gnus-article-hide-citation gnus-article-fill-cited-article
2923       gnus-article-hide-citation-in-followups)
2924      ("gnus-kill" gnus-kill gnus-apply-kill-file-internal
2925       gnus-kill-file-edit-file gnus-kill-file-raise-followups-to-author
2926       gnus-execute gnus-expunge gnus-batch-kill gnus-batch-score)
2927      ("gnus-cache" gnus-cache-possibly-enter-article gnus-cache-save-buffers
2928       gnus-cache-possibly-remove-articles gnus-cache-request-article
2929       gnus-cache-retrieve-headers gnus-cache-possibly-alter-active
2930       gnus-cache-enter-remove-article gnus-cached-article-p
2931       gnus-cache-open gnus-cache-close gnus-cache-update-article
2932       gnus-cache-articles-in-group)
2933      ("gnus-cache" :interactive t gnus-jog-cache gnus-cache-enter-article
2934       gnus-cache-remove-article gnus-summary-insert-cached-articles)
2935      ("gnus-score" :interactive t
2936       gnus-summary-increase-score gnus-summary-set-score
2937       gnus-summary-raise-thread gnus-summary-raise-same-subject
2938       gnus-summary-raise-score gnus-summary-raise-same-subject-and-select
2939       gnus-summary-lower-thread gnus-summary-lower-same-subject
2940       gnus-summary-lower-score gnus-summary-lower-same-subject-and-select
2941       gnus-summary-current-score gnus-score-delta-default
2942       gnus-score-flush-cache gnus-score-close
2943       gnus-possibly-score-headers gnus-score-followup-article
2944       gnus-score-followup-thread)
2945      ("gnus-score"
2946       (gnus-summary-score-map keymap) gnus-score-save gnus-score-headers
2947       gnus-current-score-file-nondirectory gnus-score-adaptive
2948       gnus-score-find-trace gnus-score-file-name)
2949      ("gnus-cus" :interactive t gnus-group-customize gnus-score-customize)
2950      ("gnus-topic" :interactive t gnus-topic-mode)
2951      ("gnus-topic" gnus-topic-remove-group gnus-topic-set-parameters
2952       gnus-subscribe-topics)
2953      ("gnus-salt" :interactive t gnus-pick-mode gnus-binary-mode)
2954      ("gnus-uu" (gnus-uu-extract-map keymap) (gnus-uu-mark-map keymap))
2955      ("gnus-uu" :interactive t
2956       gnus-uu-digest-mail-forward gnus-uu-digest-post-forward
2957       gnus-uu-mark-series gnus-uu-mark-region gnus-uu-mark-buffer
2958       gnus-uu-mark-by-regexp gnus-uu-mark-all
2959       gnus-uu-mark-sparse gnus-uu-mark-thread gnus-uu-decode-uu
2960       gnus-uu-decode-uu-and-save gnus-uu-decode-unshar
2961       gnus-uu-decode-unshar-and-save gnus-uu-decode-save
2962       gnus-uu-decode-binhex gnus-uu-decode-uu-view
2963       gnus-uu-decode-uu-and-save-view gnus-uu-decode-unshar-view
2964       gnus-uu-decode-unshar-and-save-view gnus-uu-decode-save-view
2965       gnus-uu-decode-binhex-view gnus-uu-unmark-thread
2966       gnus-uu-mark-over gnus-uu-post-news gnus-uu-invert-processable)
2967      ("gnus-uu" gnus-uu-delete-work-dir gnus-uu-unmark-thread)
2968      ("gnus-msg" (gnus-summary-send-map keymap)
2969       gnus-article-mail gnus-copy-article-buffer gnus-extended-version)
2970      ("gnus-msg" :interactive t
2971       gnus-group-post-news gnus-group-mail gnus-group-news
2972       gnus-summary-post-news gnus-summary-news-other-window
2973       gnus-summary-followup gnus-summary-followup-with-original
2974       gnus-summary-cancel-article gnus-summary-supersede-article
2975       gnus-post-news gnus-summary-reply gnus-summary-reply-with-original
2976       gnus-summary-mail-forward gnus-summary-mail-other-window
2977       gnus-summary-resend-message gnus-summary-resend-bounced-mail
2978       gnus-summary-wide-reply gnus-summary-followup-to-mail
2979       gnus-summary-followup-to-mail-with-original gnus-bug
2980       gnus-summary-wide-reply-with-original
2981       gnus-summary-post-forward gnus-summary-wide-reply-with-original
2982       gnus-summary-post-forward)
2983      ("gnus-picon" :interactive t gnus-treat-from-picon)
2984      ("smiley" :interactive t smiley-region)
2985      ("gnus-win" gnus-configure-windows gnus-add-configuration)
2986      ("gnus-sum" gnus-summary-insert-line gnus-summary-read-group
2987       gnus-list-of-unread-articles gnus-list-of-read-articles
2988       gnus-offer-save-summaries gnus-make-thread-indent-array
2989       gnus-summary-exit gnus-update-read-articles gnus-summary-last-subject
2990       gnus-summary-skip-intangible gnus-summary-article-number
2991       gnus-data-header gnus-data-find)
2992      ("gnus-group" gnus-group-insert-group-line gnus-group-quit
2993       gnus-group-list-groups gnus-group-first-unread-group
2994       gnus-group-set-mode-line gnus-group-set-info gnus-group-save-newsrc
2995       gnus-group-setup-buffer gnus-group-get-new-news
2996       gnus-group-make-help-group gnus-group-update-group
2997       gnus-group-iterate gnus-group-group-name)
2998      ("gnus-bcklg" gnus-backlog-request-article gnus-backlog-enter-article
2999       gnus-backlog-remove-article)
3000      ("gnus-art" gnus-article-read-summary-keys gnus-article-save
3001       gnus-article-prepare gnus-article-set-window-start
3002       gnus-article-next-page gnus-article-prev-page
3003       gnus-request-article-this-buffer gnus-article-mode
3004       gnus-article-setup-buffer gnus-narrow-to-page
3005       gnus-article-delete-invisible-text gnus-treat-article)
3006      ("gnus-art" :interactive t
3007       gnus-article-hide-headers gnus-article-hide-boring-headers
3008       gnus-article-treat-overstrike
3009       gnus-article-remove-cr gnus-article-remove-trailing-blank-lines
3010       gnus-article-display-x-face gnus-article-de-quoted-unreadable
3011       gnus-article-de-base64-unreadable
3012       gnus-article-decode-HZ
3013       gnus-article-wash-html
3014       gnus-article-unsplit-urls
3015       gnus-article-hide-pem gnus-article-hide-signature
3016       gnus-article-strip-leading-blank-lines gnus-article-date-local
3017       gnus-article-date-original gnus-article-date-lapsed
3018       ;;gnus-article-show-all-headers
3019       gnus-article-edit-mode gnus-article-edit-article
3020       gnus-article-edit-done gnus-article-decode-encoded-words
3021       gnus-start-date-timer gnus-stop-date-timer
3022       gnus-mime-view-all-parts)
3023      ("gnus-int" gnus-request-type)
3024      ("gnus-start" gnus-newsrc-parse-options gnus-1 gnus-no-server-1
3025       gnus-dribble-enter gnus-read-init-file gnus-dribble-touch
3026       gnus-check-reasonable-setup)
3027      ("gnus-dup" gnus-dup-suppress-articles gnus-dup-unsuppress-article
3028       gnus-dup-enter-articles)
3029      ("gnus-range" gnus-copy-sequence)
3030      ("gnus-eform" gnus-edit-form)
3031      ("gnus-move" :interactive t
3032       gnus-group-move-group-to-server gnus-change-server)
3033      ("gnus-logic" gnus-score-advanced)
3034      ("gnus-undo" gnus-undo-mode gnus-undo-register)
3035      ("gnus-async" gnus-async-request-fetched-article gnus-async-prefetch-next
3036       gnus-async-prefetch-article gnus-async-prefetch-remove-group
3037       gnus-async-halt-prefetch)
3038      ("gnus-agent" gnus-open-agent gnus-agent-get-function
3039       gnus-agent-save-active gnus-agent-method-p
3040       gnus-agent-get-undownloaded-list gnus-agent-fetch-session
3041       gnus-summary-set-agent-mark gnus-agent-save-group-info
3042       gnus-agent-request-article gnus-agent-retrieve-headers)
3043      ("gnus-agent" :interactive t
3044       gnus-unplugged gnus-agentize gnus-agent-batch)
3045      ("gnus-vm" :interactive t gnus-summary-save-in-vm
3046       gnus-summary-save-article-vm)
3047      ("compface" uncompface)
3048      ("gnus-draft" :interactive t gnus-draft-mode gnus-group-send-queue)
3049      ("gnus-mlspl" gnus-group-split gnus-group-split-fancy)
3050      ("gnus-mlspl" :interactive t gnus-group-split-setup
3051       gnus-group-split-update)
3052      ("gnus-delay" gnus-delay-initialize))))
3053
3054 ;;; gnus-sum.el thingies
3055
3056
3057 (defcustom gnus-summary-line-format "%U%R%z%I%(%[%4L: %-23,23f%]%) %s\n"
3058   "*The format specification of the lines in the summary buffer.
3059
3060 It works along the same lines as a normal formatting string,
3061 with some simple extensions.
3062
3063 %N   Article number, left padded with spaces (string)
3064 %S   Subject (string)
3065 %s   Subject if it is at the root of a thread, and \"\" otherwise (string)
3066 %n   Name of the poster (string)
3067 %a   Extracted name of the poster (string)
3068 %A   Extracted address of the poster (string)
3069 %F   Contents of the From: header (string)
3070 %f   Contents of the From: or To: headers (string)
3071 %x   Contents of the Xref: header (string)
3072 %D   Date of the article (string)
3073 %d   Date of the article (string) in DD-MMM format
3074 %o   Date of the article (string) in YYYYMMDD`T'HHMMSS format
3075 %M   Message-id of the article (string)
3076 %r   References of the article (string)
3077 %c   Number of characters in the article (integer)
3078 %k   Pretty-printed version of the above (string)
3079      For example, \"1.2k\" or \"0.4M\".
3080 %L   Number of lines in the article (integer)
3081 %I   Indentation based on thread level (a string of spaces)
3082 %B   A complex trn-style thread tree (string)
3083      The variables `gnus-sum-thread-*' can be used for customization.
3084 %T   A string with two possible values: 80 spaces if the article
3085      is on thread level two or larger and 0 spaces on level one
3086 %R   \"A\" if this article has been replied to, \" \" otherwise (character)
3087 %U   Status of this article (character, \"R\", \"K\", \"-\" or \" \")
3088 %[   Opening bracket (character, \"[\" or \"<\")
3089 %]   Closing bracket (character, \"]\" or \">\")
3090 %>   Spaces of length thread-level (string)
3091 %<   Spaces of length (- 20 thread-level) (string)
3092 %i   Article score (number)
3093 %z   Article zcore (character)
3094 %t   Number of articles under the current thread (number).
3095 %e   Whether the thread is empty or not (character).
3096 %V   Total thread score (number).
3097 %P   The line number (number).
3098 %O   Download mark (character).
3099 %*   If present, indicates desired cursor position
3100      (instead of after first colon).
3101 %u   User defined specifier.  The next character in the format string should
3102      be a letter.  Gnus will call the function gnus-user-format-function-X,
3103      where X is the letter following %u.  The function will be passed the
3104      current header as argument.  The function should return a string, which
3105      will be inserted into the summary just like information from any other
3106      summary specifier.
3107
3108 The %U (status), %R (replied) and %z (zcore) specs have to be handled
3109 with care.  For reasons of efficiency, Gnus will compute what column
3110 these characters will end up in, and \"hard-code\" that.  This means that
3111 it is invalid to have these specs after a variable-length spec.  Well,
3112 you might not be arrested, but your summary buffer will look strange,
3113 which is bad enough.
3114
3115 The smart choice is to have these specs as far to the left as
3116 possible.
3117
3118 This restriction may disappear in later versions of Gnus.
3119
3120 General format specifiers can also be used.
3121 See Info node `(gnus)Formatting Variables'."
3122   :link '(custom-manual "(gnus)Formatting Variables")
3123   :type 'string
3124   :group 'gnus-summary-format)
3125
3126 ;;;
3127 ;;; Skeleton keymaps
3128 ;;;
3129
3130 (defun gnus-suppress-keymap (keymap)
3131   (suppress-keymap keymap)
3132   (let ((keys `([backspace] [delete] "\177" "\M-u"))) ;gnus-mouse-2
3133     (while keys
3134       (define-key keymap (pop keys) 'undefined))))
3135
3136 (defvar gnus-article-mode-map
3137   (let ((keymap (make-sparse-keymap)))
3138     (gnus-suppress-keymap keymap)
3139     keymap))
3140 (defvar gnus-summary-mode-map
3141   (let ((keymap (make-keymap)))
3142     (gnus-suppress-keymap keymap)
3143     keymap))
3144 (defvar gnus-group-mode-map
3145   (let ((keymap (make-keymap)))
3146     (gnus-suppress-keymap keymap)
3147     keymap))
3148
3149 \f
3150
3151 ;; Fix by Hallvard B Furuseth <h.b.furuseth@usit.uio.no>.
3152 ;; If you want the cursor to go somewhere else, set these two
3153 ;; functions in some startup hook to whatever you want.
3154 (defalias 'gnus-summary-position-point 'gnus-goto-colon)
3155 (defalias 'gnus-group-position-point 'gnus-goto-colon)
3156
3157 ;;; Various macros and substs.
3158
3159 (defun gnus-header-from (header)
3160   (mail-header-from header))
3161
3162 (defmacro gnus-gethash (string hashtable)
3163   "Get hash value of STRING in HASHTABLE."
3164   `(symbol-value (intern-soft ,string ,hashtable)))
3165
3166 (defmacro gnus-gethash-safe (string hashtable)
3167   "Get hash value of STRING in HASHTABLE.
3168 Return nil if not defined."
3169   `(let ((sym (intern-soft ,string ,hashtable)))
3170      (and (boundp sym) (symbol-value sym))))
3171
3172 (defmacro gnus-sethash (string value hashtable)
3173   "Set hash value.  Arguments are STRING, VALUE, and HASHTABLE."
3174   `(set (intern ,string ,hashtable) ,value))
3175 (put 'gnus-sethash 'edebug-form-spec '(form form form))
3176
3177 (defmacro gnus-group-unread (group)
3178   "Get the currently computed number of unread articles in GROUP."
3179   `(car (gnus-gethash ,group gnus-newsrc-hashtb)))
3180
3181 (defmacro gnus-group-entry (group)
3182   "Get the newsrc entry for GROUP."
3183   `(gnus-gethash ,group gnus-newsrc-hashtb))
3184
3185 (defmacro gnus-active (group)
3186   "Get active info on GROUP."
3187   `(gnus-gethash ,group gnus-active-hashtb))
3188
3189 (defmacro gnus-set-active (group active)
3190   "Set GROUP's active info."
3191   `(gnus-sethash ,group ,active gnus-active-hashtb))
3192
3193 ;; Info access macros.
3194
3195 (defmacro gnus-info-group (info)
3196   `(nth 0 ,info))
3197 (defmacro gnus-info-rank (info)
3198   `(nth 1 ,info))
3199 (defmacro gnus-info-read (info)
3200   `(nth 2 ,info))
3201 (defmacro gnus-info-marks (info)
3202   `(nth 3 ,info))
3203 (defmacro gnus-info-method (info)
3204   `(nth 4 ,info))
3205 (defmacro gnus-info-params (info)
3206   `(nth 5 ,info))
3207
3208 (defmacro gnus-info-level (info)
3209   `(let ((rank (gnus-info-rank ,info)))
3210      (if (consp rank)
3211          (car rank)
3212        rank)))
3213 (defmacro gnus-info-score (info)
3214   `(let ((rank (gnus-info-rank ,info)))
3215      (or (and (consp rank) (cdr rank)) 0)))
3216
3217 (defmacro gnus-info-set-group (info group)
3218   `(setcar ,info ,group))
3219 (defmacro gnus-info-set-rank (info rank)
3220   `(setcar (nthcdr 1 ,info) ,rank))
3221 (defmacro gnus-info-set-read (info read)
3222   `(setcar (nthcdr 2 ,info) ,read))
3223 (defmacro gnus-info-set-marks (info marks &optional extend)
3224   (if extend
3225       `(gnus-info-set-entry ,info ,marks 3)
3226     `(setcar (nthcdr 3 ,info) ,marks)))
3227 (defmacro gnus-info-set-method (info method &optional extend)
3228   (if extend
3229       `(gnus-info-set-entry ,info ,method 4)
3230     `(setcar (nthcdr 4 ,info) ,method)))
3231 (defmacro gnus-info-set-params (info params &optional extend)
3232   (if extend
3233       `(gnus-info-set-entry ,info ,params 5)
3234     `(setcar (nthcdr 5 ,info) ,params)))
3235
3236 (defun gnus-info-set-entry (info entry number)
3237   ;; Extend the info until we have enough elements.
3238   (while (<= (length info) number)
3239     (nconc info (list nil)))
3240   ;; Set the entry.
3241   (setcar (nthcdr number info) entry))
3242
3243 (defmacro gnus-info-set-level (info level)
3244   `(let ((rank (cdr ,info)))
3245      (if (consp (car rank))
3246          (setcar (car rank) ,level)
3247        (setcar rank ,level))))
3248 (defmacro gnus-info-set-score (info score)
3249   `(let ((rank (cdr ,info)))
3250      (if (consp (car rank))
3251          (setcdr (car rank) ,score)
3252        (setcar rank (cons (car rank) ,score)))))
3253
3254 (defmacro gnus-get-info (group)
3255   `(nth 2 (gnus-gethash ,group gnus-newsrc-hashtb)))
3256
3257 ;;; Load the compatibility functions.
3258
3259 (require 'gnus-ems)
3260
3261 \f
3262 ;;;
3263 ;;; Shutdown
3264 ;;;
3265
3266 (defvar gnus-shutdown-alist nil)
3267
3268 (defun gnus-add-shutdown (function &rest symbols)
3269   "Run FUNCTION whenever one of SYMBOLS is shut down."
3270   (push (cons function symbols) gnus-shutdown-alist))
3271
3272 (defun gnus-shutdown (symbol)
3273   "Shut down everything that waits for SYMBOL."
3274   (dolist (entry gnus-shutdown-alist)
3275     (when (memq symbol (cdr entry))
3276       (funcall (car entry)))))
3277
3278 \f
3279 ;;;
3280 ;;; Gnus Utility Functions
3281 ;;;
3282
3283 (defun gnus-find-subscribed-addresses ()
3284   "Return a regexp matching the addresses of all subscribed mail groups.
3285 It consists of the `to-address' or `to-list' parameter of all groups
3286 with a `subscribed' parameter."
3287   (let (group address addresses)
3288     (dolist (entry (cdr gnus-newsrc-alist))
3289       (setq group (car entry))
3290       (when (gnus-parameter-subscribed group)
3291         (setq address (mail-strip-quoted-names
3292                        (or (gnus-group-fast-parameter group 'to-address)
3293                            (gnus-group-fast-parameter group 'to-list))))
3294         (when address
3295           (add-to-list 'addresses address))))
3296     (when addresses
3297       (list (mapconcat 'regexp-quote addresses "\\|")))))
3298
3299 (defmacro gnus-string-or (&rest strings)
3300   "Return the first element of STRINGS that is a non-blank string.
3301 STRINGS will be evaluated in normal `or' order."
3302   `(gnus-string-or-1 ',strings))
3303
3304 (defun gnus-string-or-1 (strings)
3305   (let (string)
3306     (while strings
3307       (setq string (eval (pop strings)))
3308       (if (string-match "^[ \t]*$" string)
3309           (setq string nil)
3310         (setq strings nil)))
3311     string))
3312
3313 (defun gnus-version (&optional arg)
3314   "Version number of this version of Gnus.
3315 If ARG, insert string at point."
3316   (interactive "P")
3317   (if arg
3318       (insert (message gnus-version))
3319     (message gnus-version)))
3320
3321 (defun gnus-continuum-version (&optional version)
3322   "Return VERSION as a floating point number."
3323   (interactive)
3324   (unless version
3325     (setq version gnus-version))
3326   (when (or (string-match "^\\([^ ]+\\)? ?Gnus v?\\([0-9.]+\\)$" version)
3327             (string-match "^\\(.?\\)gnus-\\([0-9.]+\\)$" version))
3328     (let ((alpha (and (match-beginning 1) (match-string 1 version)))
3329           (number (match-string 2 version))
3330           major minor least)
3331       (unless (string-match
3332                "\\([0-9]\\)\\.\\([0-9]+\\)\\.?\\([0-9]+\\)?" number)
3333         (error "Invalid version string: %s" version))
3334       (setq major (string-to-number (match-string 1 number))
3335             minor (string-to-number (match-string 2 number))
3336             least (if (match-beginning 3)
3337                       (string-to-number (match-string 3 number))
3338                     0))
3339       (string-to-number
3340        (if (zerop major)
3341              (format "%s00%02d%02d"
3342                      (if (member alpha '("(ding)" "d"))
3343                          "4.99"
3344                        (+ 5 (* 0.02
3345                                (abs
3346                                 (- (mm-char-int (aref (downcase alpha) 0))
3347                                    (mm-char-int ?t))))
3348                           -0.01))
3349                      minor least)
3350          (format "%d.%02d%02d" major minor least))))))
3351
3352 (defun gnus-info-find-node (&optional nodename)
3353   "Find Info documentation of Gnus."
3354   (interactive)
3355   ;; Enlarge info window if needed.
3356   (let (gnus-info-buffer)
3357     (Info-goto-node (or nodename (cadr (assq major-mode gnus-info-nodes))))
3358     (setq gnus-info-buffer (current-buffer))
3359     (gnus-configure-windows 'info)))
3360
3361 ;;;
3362 ;;; gnus-interactive
3363 ;;;
3364
3365 (defvar gnus-current-prefix-symbol nil
3366   "Current prefix symbol.")
3367
3368 (defvar gnus-current-prefix-symbols nil
3369   "List of current prefix symbols.")
3370
3371 (defun gnus-interactive (string &optional params)
3372   "Return a list that can be fed to `interactive'.
3373 See `interactive' for full documentation.
3374
3375 Adds the following specs:
3376
3377 y -- The current symbolic prefix.
3378 Y -- A list of the current symbolic prefix(es).
3379 A -- Article number.
3380 H -- Article header.
3381 g -- Group name."
3382   (let ((i 0)
3383         out c prompt)
3384     (while (< i (length string))
3385       (string-match ".\\([^\n]*\\)\n?" string i)
3386       (setq c (aref string i))
3387       (when (match-end 1)
3388         (setq prompt (match-string 1 string)))
3389       (setq i (match-end 0))
3390       ;; We basically emulate just about everything that
3391       ;; `interactive' does, but add the specs listed above.
3392       (push
3393        (cond
3394         ((= c ?a)
3395          (completing-read prompt obarray 'fboundp t))
3396         ((= c ?b)
3397          (read-buffer prompt (current-buffer) t))
3398         ((= c ?B)
3399          (read-buffer prompt (other-buffer (current-buffer))))
3400         ((= c ?c)
3401          (read-char))
3402         ((= c ?C)
3403          (completing-read prompt obarray 'commandp t))
3404         ((= c ?d)
3405          (point))
3406         ((= c ?D)
3407          (read-file-name prompt nil default-directory 'lambda))
3408         ((= c ?f)
3409          (read-file-name prompt nil nil 'lambda))
3410         ((= c ?F)
3411          (read-file-name prompt))
3412         ((= c ?k)
3413          (read-key-sequence prompt))
3414         ((= c ?K)
3415          (error "Not implemented spec"))
3416         ((= c ?e)
3417          (error "Not implemented spec"))
3418         ((= c ?m)
3419          (mark))
3420         ((= c ?N)
3421          (error "Not implemented spec"))
3422         ((= c ?n)
3423          (string-to-number (read-from-minibuffer prompt)))
3424         ((= c ?p)
3425          (prefix-numeric-value current-prefix-arg))
3426         ((= c ?P)
3427          current-prefix-arg)
3428         ((= c ?r)
3429          'gnus-prefix-nil)
3430         ((= c ?s)
3431          (read-string prompt))
3432         ((= c ?S)
3433          (intern (read-string prompt)))
3434         ((= c ?v)
3435          (read-variable prompt))
3436         ((= c ?x)
3437          (read-minibuffer prompt))
3438         ((= c ?x)
3439          (eval-minibuffer prompt))
3440         ;; And here the new specs come.
3441         ((= c ?y)
3442          gnus-current-prefix-symbol)
3443         ((= c ?Y)
3444          gnus-current-prefix-symbols)
3445         ((= c ?g)
3446          (gnus-group-group-name))
3447         ((= c ?A)
3448          (gnus-summary-skip-intangible)
3449          (or (get-text-property (point) 'gnus-number)
3450              (gnus-summary-last-subject)))
3451         ((= c ?H)
3452          (gnus-data-header (gnus-data-find (gnus-summary-article-number))))
3453         (t
3454          (error "Non-implemented spec")))
3455        out)
3456       (cond
3457        ((= c ?r)
3458         (push (if (< (point) (mark)) (point) (mark)) out)
3459         (push (if (> (point) (mark)) (point) (mark)) out))))
3460     (setq out (delq 'gnus-prefix-nil out))
3461     (nreverse out)))
3462
3463 (defun gnus-symbolic-argument (&optional arg)
3464   "Read a symbolic argument and a command, and then execute command."
3465   (interactive "P")
3466   (let* ((in-command (this-command-keys))
3467          (command in-command)
3468          gnus-current-prefix-symbols
3469          gnus-current-prefix-symbol
3470          syms)
3471     (while (equal in-command command)
3472       (message "%s-" (key-description (this-command-keys)))
3473       (push (intern (char-to-string (read-char))) syms)
3474       (setq command (read-key-sequence nil t)))
3475     (setq gnus-current-prefix-symbols (nreverse syms)
3476           gnus-current-prefix-symbol (car gnus-current-prefix-symbols))
3477     (call-interactively (key-binding command t))))
3478
3479 ;;; More various functions.
3480
3481 (defsubst gnus-check-backend-function (func group)
3482   "Check whether GROUP supports function FUNC.
3483 GROUP can either be a string (a group name) or a select method."
3484   (ignore-errors
3485     (let ((method (if (stringp group)
3486                       (car (gnus-find-method-for-group group))
3487                     group)))
3488       (unless (featurep method)
3489         (require method))
3490       (fboundp (intern (format "%s-%s" method func))))))
3491
3492 (defun gnus-group-read-only-p (&optional group)
3493   "Check whether GROUP supports editing or not.
3494 If GROUP is nil, `gnus-newsgroup-name' will be checked instead.  Note
3495 that that variable is buffer-local to the summary buffers."
3496   (let ((group (or group gnus-newsgroup-name)))
3497     (not (gnus-check-backend-function 'request-replace-article group))))
3498
3499 (defun gnus-virtual-group-p (group)
3500   "Say whether GROUP is virtual or not."
3501   (memq 'virtual (assoc (symbol-name (car (gnus-find-method-for-group group)))
3502                         gnus-valid-select-methods)))
3503
3504 (defun gnus-news-group-p (group &optional article)
3505   "Return non-nil if GROUP (and ARTICLE) come from a news server."
3506   (cond ((gnus-member-of-valid 'post group) ;Ordinary news group
3507          t)                             ;is news of course.
3508         ((not (gnus-member-of-valid 'post-mail group)) ;Non-combined.
3509          nil)                           ;must be mail then.
3510         ((vectorp article)              ;Has header info.
3511          (eq (gnus-request-type group (mail-header-id article)) 'news))
3512         ((null article)                 ;Hasn't header info
3513          (eq (gnus-request-type group) 'news)) ;(unknown ==> mail)
3514         ((< article 0)                  ;Virtual message
3515          nil)                           ;we don't know, guess mail.
3516         (t                              ;Has positive number
3517          (eq (gnus-request-type group article) 'news)))) ;use it.
3518
3519 ;; Returns a list of writable groups.
3520 (defun gnus-writable-groups ()
3521   (let ((alist gnus-newsrc-alist)
3522         groups group)
3523     (while (setq group (car (pop alist)))
3524       (unless (gnus-group-read-only-p group)
3525         (push group groups)))
3526     (nreverse groups)))
3527
3528 ;; Check whether to use long file names.
3529 (defun gnus-use-long-file-name (symbol)
3530   ;; The variable has to be set...
3531   (and gnus-use-long-file-name
3532        ;; If it isn't a list, then we return t.
3533        (or (not (listp gnus-use-long-file-name))
3534            ;; If it is a list, and the list contains `symbol', we
3535            ;; return nil.
3536            (not (memq symbol gnus-use-long-file-name)))))
3537
3538 ;; Generate a unique new group name.
3539 (defun gnus-generate-new-group-name (leaf)
3540   (let ((name leaf)
3541         (num 0))
3542     (while (gnus-group-entry name)
3543       (setq name (concat leaf "<" (int-to-string (setq num (1+ num))) ">")))
3544     name))
3545
3546 (defun gnus-ephemeral-group-p (group)
3547   "Say whether GROUP is ephemeral or not."
3548   (gnus-group-get-parameter group 'quit-config t))
3549
3550 (defun gnus-group-quit-config (group)
3551   "Return the quit-config of GROUP."
3552   (gnus-group-get-parameter group 'quit-config t))
3553
3554 (defun gnus-kill-ephemeral-group (group)
3555   "Remove ephemeral GROUP from relevant structures."
3556   (gnus-sethash group nil gnus-newsrc-hashtb))
3557
3558 (defun gnus-simplify-mode-line ()
3559   "Make mode lines a bit simpler."
3560   (setq mode-line-modified (cdr gnus-mode-line-modified))
3561   (when (listp mode-line-format)
3562     (make-local-variable 'mode-line-format)
3563     (setq mode-line-format (copy-sequence mode-line-format))
3564     (when (equal (nth 3 mode-line-format) "   ")
3565       (setcar (nthcdr 3 mode-line-format) " "))))
3566
3567 ;;; Servers and groups.
3568
3569 (defsubst gnus-server-add-address (method)
3570   (let ((method-name (symbol-name (car method))))
3571     (if (and (memq 'address (assoc method-name gnus-valid-select-methods))
3572              (not (assq (intern (concat method-name "-address")) method))
3573              (memq 'physical-address (assq (car method)
3574                                            gnus-valid-select-methods)))
3575         (append method (list (list (intern (concat method-name "-address"))
3576                                    (nth 1 method))))
3577       method)))
3578
3579 (defsubst gnus-method-to-server (method &optional nocache)
3580   (catch 'server-name
3581     (setq method (or method gnus-select-method))
3582
3583     ;; Perhaps it is already in the cache.
3584     (unless nocache
3585       (mapc (lambda (name-method)
3586               (if (equal (cdr name-method) method)
3587                   (throw 'server-name (car name-method))))
3588             gnus-server-method-cache))
3589
3590     (mapc
3591      (lambda (server-alist)
3592        (mapc (lambda (name-method)
3593                (when (gnus-methods-equal-p (cdr name-method) method)
3594                  (unless (member name-method gnus-server-method-cache)
3595                    (push name-method gnus-server-method-cache))
3596                  (throw 'server-name (car name-method))))
3597              server-alist))
3598      (list gnus-server-alist
3599            gnus-predefined-server-alist))
3600
3601     (let* ((name (if (member (cadr method) '(nil ""))
3602                      (format "%s" (car method))
3603                    (format "%s:%s" (car method) (cadr method))))
3604            (name-method (cons name method)))
3605       (unless (member name-method gnus-server-method-cache)
3606         (push name-method gnus-server-method-cache))
3607       name)))
3608
3609 (defsubst gnus-server-to-method (server)
3610   "Map virtual server names to select methods."
3611   (or (and server (listp server) server)
3612       (cdr (assoc server gnus-server-method-cache))
3613       (let ((result
3614              (or
3615               ;; Perhaps this is the native server?
3616               (and (equal server "native") gnus-select-method)
3617               ;; It should be in the server alist.
3618               (cdr (assoc server gnus-server-alist))
3619               ;; It could be in the predefined server alist.
3620               (cdr (assoc server gnus-predefined-server-alist))
3621               ;; If not, we look through all the opened server
3622               ;; to see whether we can find it there.
3623               (let ((opened gnus-opened-servers))
3624                 (while (and opened
3625                             (not (equal server (format "%s:%s" (caaar opened)
3626                                                        (cadaar opened)))))
3627                   (pop opened))
3628                 (caar opened))
3629               ;; It could be a named method, search all servers
3630               (let ((servers gnus-secondary-select-methods))
3631                 (while (and servers
3632                             (not (equal server (format "%s:%s" (caar servers)
3633                                                        (cadar servers)))))
3634                   (pop servers))
3635                 (car servers))
3636               ;; This could be some sort of foreign server that I
3637               ;; simply haven't opened (yet).  Do a brute-force scan
3638               ;; of the entire gnus-newsrc-alist for the server name
3639               ;; of every method.  As a side-effect, loads the
3640               ;; gnus-server-method-cache so this only happens once,
3641               ;; if at all.
3642               (let ((alist (cdr gnus-newsrc-alist))
3643                     method match)
3644                 (while alist
3645                   (setq method (gnus-info-method (pop alist)))
3646                   (when (and (not (stringp method))
3647                              (equal server (gnus-method-to-server method)))
3648                     (setq match method
3649                           alist nil)))
3650                 match))))
3651         (when result
3652           (push (cons server result) gnus-server-method-cache))
3653         result)))
3654
3655 (defsubst gnus-server-get-method (group method)
3656   ;; Input either a server name, and extended server name, or a
3657   ;; select method, and return a select method.
3658   (cond ((stringp method)
3659          (gnus-server-to-method method))
3660         ((equal method gnus-select-method)
3661          gnus-select-method)
3662         ((and (stringp (car method))
3663               group)
3664          (gnus-server-extend-method group method))
3665         ((and method
3666               (not group)
3667               (equal (cadr method) ""))
3668          method)
3669         (t
3670          (gnus-server-add-address method))))
3671
3672 (defmacro gnus-method-equal (ss1 ss2)
3673   "Say whether two servers are equal."
3674   `(let ((s1 ,ss1)
3675          (s2 ,ss2))
3676      (or (equal s1 s2)
3677          (and (= (length s1) (length s2))
3678               (progn
3679                 (while (and s1 (member (car s1) s2))
3680                   (setq s1 (cdr s1)))
3681                 (null s1))))))
3682
3683 (defun gnus-methods-equal-p (m1 m2)
3684   (let ((m1 (or m1 gnus-select-method))
3685         (m2 (or m2 gnus-select-method)))
3686     (or (equal m1 m2)
3687         (and (eq (car m1) (car m2))
3688              (or (not (memq 'address (assoc (symbol-name (car m1))
3689                                             gnus-valid-select-methods)))
3690                  (equal (nth 1 m1) (nth 1 m2)))))))
3691
3692 (defun gnus-server-equal (m1 m2)
3693   "Say whether two methods are equal."
3694   (let ((m1 (cond ((null m1) gnus-select-method)
3695                   ((stringp m1) (gnus-server-to-method m1))
3696                   (t m1)))
3697         (m2 (cond ((null m2) gnus-select-method)
3698                   ((stringp m2) (gnus-server-to-method m2))
3699                   (t m2))))
3700     (gnus-method-equal m1 m2)))
3701
3702 (defun gnus-servers-using-backend (backend)
3703   "Return a list of known servers using BACKEND."
3704   (let ((opened gnus-opened-servers)
3705         out)
3706     (while opened
3707       (when (eq backend (caaar opened))
3708         (push (caar opened) out))
3709       (pop opened))
3710     out))
3711
3712 (defun gnus-archive-server-wanted-p ()
3713   "Say whether the user wants to use the archive server."
3714   (cond
3715    ((or (not gnus-message-archive-method)
3716         (not gnus-message-archive-group))
3717     nil)
3718    ((and gnus-message-archive-method gnus-message-archive-group)
3719     t)
3720    (t
3721     (let ((active (cadr (assq 'nnfolder-active-file
3722                               gnus-message-archive-method))))
3723       (and active
3724            (file-exists-p active))))))
3725
3726 (defsubst gnus-method-to-server-name (method)
3727   (concat
3728    (format "%s" (car method))
3729    (when (and
3730           (or (assoc (format "%s" (car method))
3731                      (gnus-methods-using 'address))
3732               (gnus-server-equal method gnus-message-archive-method))
3733           (nth 1 method)
3734           (not (string= (nth 1 method) "")))
3735      (concat "+" (nth 1 method)))))
3736
3737 (defsubst gnus-method-to-full-server-name (method)
3738   (format "%s+%s" (car method) (nth 1 method)))
3739
3740 (defun gnus-group-prefixed-name (group method &optional full)
3741   "Return the whole name from GROUP and METHOD.
3742 Call with full set to get the fully qualified group name (even if the
3743 server is native)."
3744   (when (stringp method)
3745     (setq method (gnus-server-to-method method)))
3746   (if (or (not method)
3747           (and (not full) (gnus-server-equal method "native"))
3748           ;;;!!! This might not be right.  We'll see...
3749           ;(string-match ":" group)
3750           )
3751       group
3752     (concat (gnus-method-to-server-name method) ":" group)))
3753
3754 (defun gnus-group-guess-prefixed-name (group)
3755   "Guess the whole name from GROUP and METHOD."
3756   (gnus-group-prefixed-name group (gnus-find-method-for-group
3757                                group)))
3758
3759 (defun gnus-group-full-name (group method)
3760   "Return the full name from GROUP and METHOD, even if the method is native."
3761   (gnus-group-prefixed-name group method t))
3762
3763 (defun gnus-group-guess-full-name (group)
3764   "Guess the full name from GROUP, even if the method is native."
3765   (if (gnus-group-prefixed-p group)
3766       group
3767     (gnus-group-full-name group (gnus-find-method-for-group group))))
3768
3769 (defun gnus-group-guess-full-name-from-command-method (group)
3770   "Guess the full name from GROUP, even if the method is native."
3771   (if (gnus-group-prefixed-p group)
3772       group
3773     (gnus-group-full-name group gnus-command-method)))
3774
3775 (defun gnus-group-real-prefix (group)
3776   "Return the prefix of the current group name."
3777   (if (stringp group)
3778       (if (string-match "^[^:]+:" group)
3779           (substring group 0 (match-end 0))
3780         "")
3781     nil))
3782
3783 (defun gnus-group-short-name (group)
3784   "Return the short group name."
3785   (let ((prefix (gnus-group-real-prefix group)))
3786     (if (< 0 (length prefix))
3787         (substring group (length prefix) nil)
3788       group)))
3789
3790 (defun gnus-group-prefixed-p (group)
3791   "Return the prefix of the current group name."
3792   (< 0 (length (gnus-group-real-prefix group))))
3793
3794 (declare-function gnus-group-decoded-name "gnus-group" (string))
3795
3796 (defun gnus-summary-buffer-name (group)
3797   "Return the summary buffer name of GROUP."
3798   (concat "*Summary " (gnus-group-decoded-name group) "*"))
3799
3800 (defun gnus-group-method (group)
3801   "Return the server or method used for selecting GROUP.
3802 You should probably use `gnus-find-method-for-group' instead."
3803   (let ((prefix (gnus-group-real-prefix group)))
3804     (if (equal prefix "")
3805         gnus-select-method
3806       (let ((servers gnus-opened-servers)
3807             (server "")
3808             backend possible found)
3809         (if (string-match "^[^\\+]+\\+" prefix)
3810             (setq backend (intern (substring prefix 0 (1- (match-end 0))))
3811                   server (substring prefix (match-end 0) (1- (length prefix))))
3812           (setq backend (intern (substring prefix 0 (1- (length prefix))))))
3813         (while servers
3814           (when (eq (caaar servers) backend)
3815             (setq possible (caar servers))
3816             (when (equal (cadaar servers) server)
3817               (setq found (caar servers))))
3818           (pop servers))
3819         (or (car (rassoc found gnus-server-alist))
3820             found
3821             (car (rassoc possible gnus-server-alist))
3822             possible
3823             (list backend server))))))
3824
3825 (defsubst gnus-native-method-p (method)
3826   "Return whether METHOD is the native select method."
3827   (gnus-method-equal method gnus-select-method))
3828
3829 (defsubst gnus-secondary-method-p (method)
3830   "Return whether METHOD is a secondary select method."
3831   (let ((methods gnus-secondary-select-methods)
3832         (gmethod (inline (gnus-server-get-method nil method))))
3833     (while (and methods
3834                 (not (gnus-method-equal
3835                       (inline (gnus-server-get-method nil (car methods)))
3836                       gmethod)))
3837       (setq methods (cdr methods)))
3838     methods))
3839
3840 (defun gnus-method-simplify (method)
3841   "Return the shortest uniquely identifying string or method for METHOD."
3842   (cond ((stringp method)
3843          method)
3844         ((gnus-native-method-p method)
3845          nil)
3846         ((gnus-secondary-method-p method)
3847          (format "%s:%s" (nth 0 method) (nth 1 method)))
3848         (t
3849          method)))
3850
3851 (defun gnus-groups-from-server (server)
3852   "Return a list of all groups that are fetched from SERVER."
3853   (let ((alist (cdr gnus-newsrc-alist))
3854         info groups)
3855     (while (setq info (pop alist))
3856       (when (gnus-server-equal (gnus-info-method info) server)
3857         (push (gnus-info-group info) groups)))
3858     (sort groups 'string<)))
3859
3860 (defun gnus-group-foreign-p (group)
3861   "Say whether a group is foreign or not."
3862   (and (not (gnus-group-native-p group))
3863        (not (gnus-group-secondary-p group))))
3864
3865 (defun gnus-group-native-p (group)
3866   "Say whether the group is native or not."
3867   (not (string-match ":" group)))
3868
3869 (defun gnus-group-secondary-p (group)
3870   "Say whether the group is secondary or not."
3871   (gnus-secondary-method-p (gnus-find-method-for-group group)))
3872
3873 (defun gnus-parameters-get-parameter (group)
3874   "Return the group parameters for GROUP from `gnus-parameters'."
3875   (let ((case-fold-search (if (eq gnus-parameters-case-fold-search 'default)
3876                               case-fold-search
3877                             gnus-parameters-case-fold-search))
3878         params-list)
3879     (dolist (elem gnus-parameters)
3880       (when (string-match (car elem) group)
3881         (setq params-list
3882               (nconc (gnus-expand-group-parameters
3883                       (car elem) (cdr elem) group)
3884                      params-list))))
3885     params-list))
3886
3887 (defun gnus-expand-group-parameter (match value group)
3888   "Use MATCH to expand VALUE in GROUP."
3889   (with-temp-buffer
3890     (insert group)
3891     (goto-char (point-min))
3892     (while (re-search-forward match nil t)
3893       (replace-match value))
3894     (buffer-string)))
3895
3896 (defun gnus-expand-group-parameters (match parameters group)
3897   "Go through PARAMETERS and expand them according to the match data."
3898   (let (new)
3899     (dolist (elem parameters)
3900       (if (and (stringp (cdr elem))
3901                (string-match "\\\\[0-9&]" (cdr elem)))
3902           (push (cons (car elem)
3903                       (gnus-expand-group-parameter match (cdr elem) group))
3904                 new)
3905         (push elem new)))
3906     new))
3907
3908 (defun gnus-group-fast-parameter (group symbol &optional allow-list)
3909   "For GROUP, return the value of SYMBOL.
3910
3911 You should call this in the `gnus-group-buffer' buffer.
3912 The function `gnus-group-find-parameter' will do that for you."
3913   ;; The speed trick:  No cons'ing and quit early.
3914   (let* ((params (funcall gnus-group-get-parameter-function group))
3915          ;; Start easy, check the "real" group parameters.
3916          (simple-results
3917           (gnus-group-parameter-value params symbol allow-list t)))
3918     (if simple-results
3919         ;; Found results; return them.
3920         (car simple-results)
3921       ;; We didn't find it there, try `gnus-parameters'.
3922       (let ((result nil)
3923             (head nil)
3924             (tail gnus-parameters))
3925         ;; A good old-fashioned non-cl loop.
3926         (while tail
3927           (setq head (car tail)
3928                 tail (cdr tail))
3929           ;; The car is regexp matching for matching the group name.
3930           (when (string-match (car head) group)
3931             ;; The cdr is the parameters.
3932             (setq result (gnus-group-parameter-value (cdr head)
3933                                                      symbol allow-list))
3934             (when result
3935               ;; Expand if necessary.
3936               (if (and (stringp result) (string-match "\\\\[0-9&]" result))
3937                   (setq result (gnus-expand-group-parameter (car head)
3938                                                             result group)))
3939               ;; Exit the loop early.
3940               (setq tail nil))))
3941         ;; Done.
3942         result))))
3943
3944 (defun gnus-group-find-parameter (group &optional symbol allow-list)
3945   "Return the group parameters for GROUP.
3946 If SYMBOL, return the value of that symbol in the group parameters.
3947
3948 If you call this function inside a loop, consider using the faster
3949 `gnus-group-fast-parameter' instead."
3950   (save-excursion
3951     (set-buffer gnus-group-buffer)
3952     (if symbol
3953         (gnus-group-fast-parameter group symbol allow-list)
3954       (nconc
3955        (copy-sequence
3956         (funcall gnus-group-get-parameter-function group))
3957        (gnus-parameters-get-parameter group)))))
3958
3959 (defun gnus-group-get-parameter (group &optional symbol allow-list)
3960   "Return the group parameters for GROUP.
3961 If SYMBOL, return the value of that symbol in the group parameters.
3962 If ALLOW-LIST, also allow list as a result.
3963 Most functions should use `gnus-group-find-parameter', which
3964 also examines the topic parameters."
3965   (let ((params (gnus-info-params (gnus-get-info group))))
3966     (if symbol
3967         (gnus-group-parameter-value params symbol allow-list)
3968       params)))
3969
3970 (defun gnus-group-parameter-value (params symbol &optional
3971                                           allow-list present-p)
3972   "Return the value of SYMBOL in group PARAMS.
3973 If ALLOW-LIST, also allow list as a result."
3974   ;; We only wish to return group parameters (dotted lists) and
3975   ;; not local variables, which may have the same names.
3976   ;; But first we handle single elements...
3977   (or (car (memq symbol params))
3978       ;; Handle alist.
3979       (let (elem)
3980         (catch 'found
3981           (while (setq elem (pop params))
3982             (when (and (consp elem)
3983                        (eq (car elem) symbol)
3984                        (or allow-list
3985                            (atom (cdr elem))))
3986               (throw 'found (if present-p (list (cdr elem))
3987                               (cdr elem)))))))))
3988
3989 (defun gnus-group-add-parameter (group param)
3990   "Add parameter PARAM to GROUP."
3991   (let ((info (gnus-get-info group)))
3992     (when info
3993       (gnus-group-remove-parameter group (if (consp param) (car param) param))
3994       ;; Cons the new param to the old one and update.
3995       (gnus-group-set-info (cons param (gnus-info-params info))
3996                            group 'params))))
3997
3998 (defun gnus-group-set-parameter (group name value)
3999   "Set parameter NAME to VALUE in GROUP."
4000   (let ((info (gnus-get-info group)))
4001     (when info
4002       (gnus-group-remove-parameter group name)
4003       (let ((old-params (gnus-info-params info))
4004             (new-params (list (cons name value))))
4005         (while old-params
4006           (when (or (not (listp (car old-params)))
4007                     (not (eq (caar old-params) name)))
4008             (setq new-params (append new-params (list (car old-params)))))
4009           (setq old-params (cdr old-params)))
4010         (gnus-group-set-info new-params group 'params)))))
4011
4012 (defun gnus-group-remove-parameter (group name)
4013   "Remove parameter NAME from GROUP."
4014   (let ((info (gnus-get-info group)))
4015     (when info
4016       (let ((params (gnus-info-params info)))
4017         (when params
4018           (setq params (delq name params))
4019           (while (assq name params)
4020             (gnus-pull name params))
4021           (gnus-info-set-params info params))))))
4022
4023 (defun gnus-group-add-score (group &optional score)
4024   "Add SCORE to the GROUP score.
4025 If SCORE is nil, add 1 to the score of GROUP."
4026   (let ((info (gnus-get-info group)))
4027     (when info
4028       (gnus-info-set-score info (+ (gnus-info-score info) (or score 1))))))
4029
4030 (defun gnus-short-group-name (group &optional levels)
4031   "Collapse GROUP name LEVELS.
4032 Select methods are stripped and any remote host name is stripped down to
4033 just the host name."
4034   (let* ((name "")
4035          (foreign "")
4036          (depth 0)
4037          (skip 1)
4038          (levels (or levels
4039                      gnus-group-uncollapsed-levels
4040                      (progn
4041                        (while (string-match "\\." group skip)
4042                          (setq skip (match-end 0)
4043                                depth (+ depth 1)))
4044                        depth))))
4045     ;; Separate foreign select method from group name and collapse.
4046    ;; If method contains a server, collapse to non-domain server name,
4047     ;; otherwise collapse to select method.
4048     (let* ((colon (string-match ":" group))
4049            (server (and colon (substring group 0 colon)))
4050            (plus (and server (string-match "+" server))))
4051       (when server
4052         (if plus
4053             (setq foreign (substring server (+ 1 plus)
4054                                      (string-match "\\." server))
4055                   group (substring group (+ 1 colon)))
4056           (setq foreign server
4057                 group (substring group (+ 1 colon))))
4058         (setq foreign (concat foreign ":")))
4059       ;; Collapse group name leaving LEVELS uncollapsed elements
4060       (let* ((slist (split-string group "/"))
4061              (slen (length slist))
4062              (dlist (split-string group "\\."))
4063              (dlen (length dlist))
4064              glist
4065              glen
4066              gsep
4067              res)
4068         (if (> slen dlen)
4069             (setq glist slist
4070                   glen slen
4071                   gsep "/")
4072           (setq glist dlist
4073                 glen dlen
4074                 gsep "."))
4075         (setq levels (- glen levels))
4076         (dolist (g glist)
4077           (push (if (>= (decf levels) 0)
4078                     (if (zerop (length g))
4079                         ""
4080                       (substring g 0 1))
4081                   g)
4082                 res))
4083         (concat foreign (mapconcat 'identity (nreverse res) gsep))))))
4084
4085 (defun gnus-narrow-to-body ()
4086   "Narrow to the body of an article."
4087   (narrow-to-region
4088    (progn
4089      (goto-char (point-min))
4090      (or (search-forward "\n\n" nil t)
4091          (point-max)))
4092    (point-max)))
4093
4094 \f
4095 ;;;
4096 ;;; Kill file handling.
4097 ;;;
4098
4099 (defun gnus-apply-kill-file ()
4100   "Apply a kill file to the current newsgroup.
4101 Returns the number of articles marked as read."
4102   (if (or (file-exists-p (gnus-newsgroup-kill-file nil))
4103           (file-exists-p (gnus-newsgroup-kill-file gnus-newsgroup-name)))
4104       (gnus-apply-kill-file-internal)
4105     0))
4106
4107 (defun gnus-kill-save-kill-buffer ()
4108   (let ((file (gnus-newsgroup-kill-file gnus-newsgroup-name)))
4109     (when (get-file-buffer file)
4110       (save-excursion
4111         (set-buffer (get-file-buffer file))
4112         (when (buffer-modified-p)
4113           (save-buffer))
4114         (kill-buffer (current-buffer))))))
4115
4116 (defcustom gnus-kill-file-name "KILL"
4117   "Suffix of the kill files."
4118   :group 'gnus-score-kill
4119   :group 'gnus-score-files
4120   :type 'string)
4121
4122 (defun gnus-newsgroup-kill-file (newsgroup)
4123   "Return the name of a kill file name for NEWSGROUP.
4124 If NEWSGROUP is nil, return the global kill file name instead."
4125   (cond
4126    ;; The global KILL file is placed at top of the directory.
4127    ((or (null newsgroup)
4128         (string-equal newsgroup ""))
4129     (expand-file-name gnus-kill-file-name
4130                       gnus-kill-files-directory))
4131    ;; Append ".KILL" to newsgroup name.
4132    ((gnus-use-long-file-name 'not-kill)
4133     (expand-file-name (concat (gnus-newsgroup-savable-name newsgroup)
4134                               "." gnus-kill-file-name)
4135                       gnus-kill-files-directory))
4136    ;; Place "KILL" under the hierarchical directory.
4137    (t
4138     (expand-file-name (concat (gnus-newsgroup-directory-form newsgroup)
4139                               "/" gnus-kill-file-name)
4140                       gnus-kill-files-directory))))
4141
4142 ;;; Server things.
4143
4144 (defun gnus-member-of-valid (symbol group)
4145   "Find out if GROUP has SYMBOL as part of its \"valid\" spec."
4146   (memq symbol (assoc
4147                 (symbol-name (car (gnus-find-method-for-group group)))
4148                 gnus-valid-select-methods)))
4149
4150 (defun gnus-method-option-p (method option)
4151   "Return non-nil if select METHOD has OPTION as a parameter."
4152   (when (stringp method)
4153     (setq method (gnus-server-to-method method)))
4154   (memq option (assoc (format "%s" (car method))
4155                       gnus-valid-select-methods)))
4156
4157 (defun gnus-similar-server-opened (method)
4158   (let ((opened gnus-opened-servers))
4159     (while (and method opened)
4160       (when (and (equal (cadr method) (cadaar opened))
4161                  (equal (car method) (caaar opened))
4162                  (not (equal method (caar opened))))
4163         (setq method nil))
4164       (pop opened))
4165     (not method)))
4166
4167 (defun gnus-server-extend-method (group method)
4168   ;; This function "extends" a virtual server.  If the server is
4169   ;; "hello", and the select method is ("hello" (my-var "something"))
4170   ;; in the group "alt.alt", this will result in a new virtual server
4171   ;; called "hello+alt.alt".
4172   (if (or (not (inline (gnus-similar-server-opened method)))
4173           (not (cddr method)))
4174       method
4175     `(,(car method) ,(concat (cadr method) "+" group)
4176       (,(intern (format "%s-address" (car method))) ,(cadr method))
4177       ,@(cddr method))))
4178
4179 (defun gnus-server-status (method)
4180   "Return the status of METHOD."
4181   (nth 1 (assoc method gnus-opened-servers)))
4182
4183 (defun gnus-group-name-to-method (group)
4184   "Guess a select method based on GROUP."
4185   (if (string-match ":" group)
4186       (let ((server (substring group 0 (match-beginning 0))))
4187         (if (string-match "\\+" server)
4188             (list (intern (substring server 0 (match-beginning 0)))
4189                   (substring server (match-end 0)))
4190           (list (intern server) "")))
4191     gnus-select-method))
4192
4193 (defun gnus-server-string (server)
4194   "Return a readable string that describes SERVER."
4195   (let* ((server (gnus-server-to-method server))
4196          (address (nth 1 server)))
4197     (if (and address
4198              (not (zerop (length address))))
4199         (format "%s using %s" address (car server))
4200       (format "%s" (car server)))))
4201
4202 (defun gnus-find-method-for-group (group &optional info)
4203   "Find the select method that GROUP uses."
4204   (or gnus-override-method
4205       (and (not group)
4206            gnus-select-method)
4207       (and (not (gnus-group-entry group))
4208            ;; Killed or otherwise unknown group.
4209            (or
4210             ;; If we know a virtual server by that name, return its method.
4211             (gnus-server-to-method (gnus-group-server group))
4212             ;; Guess a new method as last resort.
4213             (gnus-group-name-to-method group)))
4214       (let ((info (or info (gnus-get-info group)))
4215             method)
4216         (if (or (not info)
4217                 (not (setq method (gnus-info-method info)))
4218                 (equal method "native"))
4219             gnus-select-method
4220           (setq method
4221                 (cond ((stringp method)
4222                        (inline (gnus-server-to-method method)))
4223                       ((stringp (cadr method))
4224                        (inline (gnus-server-extend-method group method)))
4225                       (t
4226                        method)))
4227           (cond ((equal (cadr method) "")
4228                  method)
4229                 ((null (cadr method))
4230                  (list (car method) ""))
4231                 (t
4232                  (gnus-server-add-address method)))))))
4233
4234 (defun gnus-methods-using (feature)
4235   "Find all methods that have FEATURE."
4236   (let ((valids gnus-valid-select-methods)
4237         outs)
4238     (while valids
4239       (when (memq feature (car valids))
4240         (push (car valids) outs))
4241       (setq valids (cdr valids)))
4242     outs))
4243
4244 (eval-and-compile
4245   (autoload 'message-y-or-n-p "message" nil nil 'macro))
4246
4247 (defun gnus-read-group (prompt &optional default)
4248   "Prompt the user for a group name.
4249 Disallow invalid group names."
4250   (let ((prefix "")
4251         group)
4252     (while (not group)
4253       (when (string-match
4254              gnus-invalid-group-regexp
4255              (setq group (read-string (concat prefix prompt)
4256                                       (cons (or default "") 0)
4257                                       'gnus-group-history)))
4258         (let ((match (match-string 0 group)))
4259           ;; Might be okay (e.g. for nnimap), so ask the user:
4260           (unless (and (not (string-match "^$\\|:" match))
4261                        (message-y-or-n-p
4262                         "Proceed and create group anyway? " t
4263 "The group name \"" group "\" contains a forbidden character: \"" match "\".
4264
4265 Usually, it's dangerous to create a group with this name, because it's not
4266 supported by all back ends and servers.  On IMAP servers it should work,
4267 though.  If you are really sure, you can proceed anyway and create the group.
4268
4269 You may customize the variable `gnus-invalid-group-regexp', which currently is
4270 set to \"" gnus-invalid-group-regexp
4271 "\", if you want to get rid of this query permanently."))
4272             (setq prefix (format "Invalid group name: \"%s\".  " group)
4273                   group nil)))))
4274     group))
4275
4276 (defun gnus-read-method (prompt)
4277   "Prompt the user for a method.
4278 Allow completion over sensible values."
4279   (let* ((open-servers
4280           (mapcar (lambda (i) (cons (format "%s:%s" (caar i) (cadar i)) i))
4281                   gnus-opened-servers))
4282          (valid-methods
4283           (let (methods)
4284             (dolist (method gnus-valid-select-methods)
4285               (if (or (memq 'prompt-address method)
4286                       (not (assoc (format "%s:" (car method)) open-servers)))
4287                   (push method methods)))
4288             methods))
4289          (servers
4290           (append valid-methods
4291                   open-servers
4292                   gnus-predefined-server-alist
4293                   gnus-server-alist))
4294          (method
4295           (completing-read
4296            prompt servers
4297            nil t nil 'gnus-method-history)))
4298     (cond
4299      ((equal method "")
4300       (setq method gnus-select-method))
4301      ((assoc method gnus-valid-select-methods)
4302       (let ((address (if (memq 'prompt-address
4303                                (assoc method gnus-valid-select-methods))
4304                          (read-string "Address: ")
4305                        "")))
4306         (or (cadr (assoc (format "%s:%s" method address) open-servers))
4307             (list (intern method) address))))
4308      ((assoc method servers)
4309       method)
4310      (t
4311       (list (intern method) "")))))
4312
4313 ;;; Agent functions
4314
4315 (defun gnus-agent-method-p (method-or-server)
4316   "Say whether METHOD is covered by the agent."
4317   (or (eq (car gnus-agent-method-p-cache) method-or-server)
4318       (let* ((method (if (stringp method-or-server)
4319                          (gnus-server-to-method method-or-server)
4320                        method-or-server))
4321              (server (gnus-method-to-server method t)))
4322         (setq gnus-agent-method-p-cache
4323               (cons method-or-server
4324                     (member server gnus-agent-covered-methods)))))
4325   (cdr gnus-agent-method-p-cache))
4326
4327 (defun gnus-online (method)
4328   (not
4329    (if gnus-plugged
4330        (eq (cadr (assoc method gnus-opened-servers)) 'offline)
4331      (gnus-agent-method-p method))))
4332
4333 ;;; User-level commands.
4334
4335 ;;;###autoload
4336 (defun gnus-slave-no-server (&optional arg)
4337   "Read network news as a slave, without connecting to the local server."
4338   (interactive "P")
4339   (gnus-no-server arg t))
4340
4341 ;;;###autoload
4342 (defun gnus-no-server (&optional arg slave)
4343   "Read network news.
4344 If ARG is a positive number, Gnus will use that as the startup
4345 level. If ARG is nil, Gnus will be started at level 2.  If ARG is
4346 non-nil and not a positive number, Gnus will prompt the user for the
4347 name of an NNTP server to use.
4348 As opposed to `gnus', this command will not connect to the local
4349 server."
4350   (interactive "P")
4351   (gnus-no-server-1 arg slave))
4352
4353 ;;;###autoload
4354 (defun gnus-slave (&optional arg)
4355   "Read news as a slave."
4356   (interactive "P")
4357   (gnus arg nil 'slave))
4358
4359 ;;;###autoload
4360 (defun gnus-other-frame (&optional arg display)
4361   "Pop up a frame to read news.
4362 This will call one of the Gnus commands which is specified by the user
4363 option `gnus-other-frame-function' (default `gnus') with the argument
4364 ARG if Gnus is not running, otherwise just pop up a Gnus frame.  The
4365 optional second argument DISPLAY should be a standard display string
4366 such as \"unix:0\" to specify where to pop up a frame.  If DISPLAY is
4367 omitted or the function `make-frame-on-display' is not available, the
4368 current display is used."
4369   (interactive "P")
4370   (if (fboundp 'make-frame-on-display)
4371       (unless display
4372         (setq display (gnus-frame-or-window-display-name (selected-frame))))
4373     (setq display nil))
4374   (let ((alive (gnus-alive-p)))
4375     (unless (and alive
4376                  (catch 'found
4377                    (walk-windows
4378                     (lambda (window)
4379                       (when (and (or (not display)
4380                                      (equal display
4381                                             (gnus-frame-or-window-display-name
4382                                              window)))
4383                                  (with-current-buffer (window-buffer window)
4384                                    (string-match "\\`gnus-"
4385                                                  (symbol-name major-mode))))
4386                         (gnus-select-frame-set-input-focus
4387                          (setq gnus-other-frame-object (window-frame window)))
4388                         (select-window window)
4389                         (throw 'found t)))
4390                     'ignore t)))
4391       (gnus-select-frame-set-input-focus
4392        (setq gnus-other-frame-object
4393              (if display
4394                  (make-frame-on-display display gnus-other-frame-parameters)
4395                (make-frame gnus-other-frame-parameters))))
4396       (if alive
4397           (switch-to-buffer gnus-group-buffer)
4398         (funcall gnus-other-frame-function arg)
4399         (add-hook 'gnus-exit-gnus-hook
4400                   '(lambda nil
4401                      (when (and (frame-live-p gnus-other-frame-object)
4402                                 (cdr (frame-list)))
4403                        (delete-frame gnus-other-frame-object))
4404                      (setq gnus-other-frame-object nil)))))))
4405
4406 ;;;###autoload
4407 (defun gnus (&optional arg dont-connect slave)
4408   "Read network news.
4409 If ARG is non-nil and a positive number, Gnus will use that as the
4410 startup level.  If ARG is non-nil and not a positive number, Gnus will
4411 prompt the user for the name of an NNTP server to use."
4412   (interactive "P")
4413   (unless (byte-code-function-p (symbol-function 'gnus))
4414     (message "You should byte-compile Gnus")
4415     (sit-for 2))
4416   (gnus-1 arg dont-connect slave))
4417
4418 ;; Allow redefinition of Gnus functions.
4419
4420 (gnus-ems-redefine)
4421
4422 (provide 'gnus)
4423
4424 ;; arch-tag: acebeeab-f331-4f8f-a7ea-89c58c84f636
4425 ;;; gnus.el ends here