lisp/gnus/gnus-cus.el

   1 ;;; gnus-cus.el --- customization commands for Gnus
   2 ;;
   3 ;; Copyright (C) 1996 Free Software Foundation, Inc.
   4
   5 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
   6 ;; Keywords: news
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24
  25 ;;; Commentary:
  26
  27 ;;; Code:
  28
  29 (require 'wid-edit)
  30 (require 'gnus-score)
  31
  32 ;;; Widgets:
  33
  34 ;; There should be special validation for this.
  35 (define-widget 'gnus-email-address 'string
  36   "An email address")
  37
  38 (defun gnus-custom-mode ()
  39   "Major mode for editing Gnus customization buffers.
  40
  41 The following commands are available:
  42
  43 \\[widget-forward]              Move to next button or editable field.
  44 \\[widget-backward]             Move to previous button or editable field.
  45 \\[widget-button-click]         Activate button under the mouse pointer.
  46 \\[widget-button-press]         Activate button under point.
  47
  48 Entry to this mode calls the value of `gnus-custom-mode-hook'
  49 if that value is non-nil."
  50   (kill-all-local-variables)
  51   (setq major-mode 'gnus-custom-mode
  52         mode-name "Gnus Customize")
  53   (use-local-map widget-keymap)
  54   (gnus-run-hooks 'gnus-custom-mode-hook))
  55
  56 ;;; Group Customization:
  57
  58 (defconst gnus-group-parameters
  59   '((to-address (gnus-email-address :tag "To Address") "\
  60 This will be used when doing followups and posts.
  61
  62 This is primarily useful in mail groups that represent closed
  63 mailing lists--mailing lists where it's expected that everybody that
  64 writes to the mailing list is subscribed to it.  Since using this
  65 parameter ensures that the mail only goes to the mailing list itself,
  66 it means that members won't receive two copies of your followups.
  67
  68 Using `to-address' will actually work whether the group is foreign or
  69 not.  Let's say there's a group on the server that is called
  70 `fa.4ad-l'.  This is a real newsgroup, but the server has gotten the
  71 articles from a mail-to-news gateway.  Posting directly to this group
  72 is therefore impossible--you have to send mail to the mailing list
  73 address instead.")
  74
  75     (to-list (gnus-email-address :tag "To List") "\
  76 This address will be used when doing a `a' in the group.
  77
  78 It is totally ignored when doing a followup--except that if it is
  79 present in a news group, you'll get mail group semantics when doing
  80 `f'.")
  81
  82     (broken-reply-to (const :tag "Broken Reply To" t) "\
  83 Ignore `Reply-To' headers in this group.
  84
  85 That can be useful if you're reading a mailing list group where the
  86 listserv has inserted `Reply-To' headers that point back to the
  87 listserv itself.  This is broken behavior.  So there!")
  88
  89     (to-group (string :tag "To Group") "\
  90 All posts will be send to the specified group.")
  91
  92     (gcc-self (choice :tag  "GCC"
  93                       :value t
  94                       (const t)
  95                       (const none)
  96                       (string :format "%v" :hide-front-space t)) "\
  97 Specify default value for GCC header.
  98
  99 If this symbol is present in the group parameter list and set to `t',
 100 new composed messages will be `Gcc''d to the current group. If it is
 101 present and set to `none', no `Gcc:' header will be generated, if it
 102 is present and a string, this string will be inserted literally as a
 103 `gcc' header (this symbol takes precedence over any default `Gcc'
 104 rules as described later).")
 105
 106     (auto-expire (const :tag "Automatic Expire" t) "\
 107 All articles that are read will be marked as expirable.")
 108
 109     (total-expire (const :tag "Total Expire" t) "\
 110 All read articles will be put through the expiry process
 111
 112 This happens even if they are not marked as expirable.
 113 Use with caution.")
 114
 115     (expiry-wait (choice :tag  "Expire Wait"
 116                          :value never
 117                          (const never)
 118                          (const immediate)
 119                          (number :hide-front-space t
 120                                  :format "%v")) "\
 121 When to expire.
 122
 123 Overrides any `nnmail-expiry-wait' and `nnmail-expiry-wait-function'
 124 when expiring expirable messages. The value can either be a number of
 125 days (not necessarily an integer) or the symbols `never' or
 126 `immediate'.")
 127
 128     (score-file (file :tag "Score File") "\
 129 Make the specified file into the current score file.
 130 This means that all score commands you issue will end up in this file.")
 131
 132     (adapt-file (file :tag "Adapt File") "\
 133 Make the specified file into the current adaptive file.
 134 All adaptive score entries will be put into this file.")
 135
 136     (admin-address (gnus-email-address :tag "Admin Address") "\
 137 Administration address for a mailing list.
 138
 139 When unsubscribing to a mailing list you should never send the
 140 unsubscription notice to the mailing list itself.  Instead, you'd
 141 send messages to the administrative address.  This parameter allows
 142 you to put the admin address somewhere convenient.")
 143
 144     (display (choice :tag "Display"
 145                      :value default
 146                      (const all)
 147                      (const default)) "\
 148 Which articles to display on entering the group.
 149
 150 `all'
 151      Display all articles, both read and unread.
 152
 153 `default'
 154      Display the default visible articles, which normally includes
 155      unread and ticked articles.")
 156
 157     (comment (string :tag  "Comment") "\
 158 An arbitrary comment on the group.")
 159
 160     (visible (const :tag "Permanently visible" t) "\
 161 Always display this group, even when there are no unread articles
 162 in it.."))
 163   "Alist of valid group parameters.
 164
 165 Each entry has the form (NAME TYPE DOC), where NAME is the parameter
 166 itself (a symbol), TYPE is the parameters type (a sexp widget), and
 167 DOC is a documentation string for the parameter.")
 168
 169 (defvar gnus-custom-params)
 170 (defvar gnus-custom-method)
 171 (defvar gnus-custom-group)
 172
 173 (defun gnus-group-customize (group)
 174   "Edit the group on the current line."
 175   (interactive (list (gnus-group-group-name)))
 176   (let (info
 177         (types (mapcar (lambda (entry)
 178                          `(cons :format "%v%h\n"
 179                                 :doc ,(nth 2 entry)
 180                                 (const :format "" ,(nth 0 entry))
 181                                 ,(nth 1 entry)))
 182                        gnus-group-parameters)))
 183     (unless group
 184       (error "No group on current line"))
 185     (unless (setq info (gnus-get-info group))
 186       (error "Killed group; can't be edited"))
 187     ;; Ready.
 188     (kill-buffer (gnus-get-buffer-create "*Gnus Customize*"))
 189     (switch-to-buffer (gnus-get-buffer-create "*Gnus Customize*"))
 190     (gnus-custom-mode)
 191     (make-local-variable 'gnus-custom-group)
 192     (setq gnus-custom-group group)
 193     (widget-insert "Customize the ")
 194     (widget-create 'info-link
 195                    :help-echo "Push me to learn more."
 196                    :tag "group parameters"
 197                    "(gnus)Group Parameters")
 198     (widget-insert " for <")
 199     (widget-insert group)
 200     (widget-insert "> and press ")
 201     (widget-create 'push-button
 202                    :tag "done"
 203                    :help-echo "Push me when done customizing."
 204                    :action 'gnus-group-customize-done)
 205     (widget-insert ".\n\n")
 206     (make-local-variable 'gnus-custom-params)
 207     (setq gnus-custom-params
 208           (widget-create 'group
 209                          :value (gnus-info-params info)
 210                          `(set :inline t
 211                                :greedy t
 212                                :tag "Parameters"
 213                                :format "%t:\n%h%v"
 214                                :doc "\
 215 These special paramerters are recognized by Gnus.
 216 Check the [ ] for the parameters you want to apply to this group, then
 217 edit the value to suit your taste."
 218                                ,@types)
 219                          '(repeat :inline t
 220                                   :tag "Variables"
 221                                   :format "%t:\n%h%v%i\n\n"
 222                                   :doc "\
 223 Set variables local to the group you are entering.
 224
 225 If you want to turn threading off in `news.answers', you could put
 226 `(gnus-show-threads nil)' in the group parameters of that group.
 227 `gnus-show-threads' will be made into a local variable in the summary
 228 buffer you enter, and the form `nil' will be `eval'ed there.
 229
 230 This can also be used as a group-specific hook function, if you'd
 231 like.  If you want to hear a beep when you enter a group, you could
 232 put something like `(dummy-variable (ding))' in the parameters of that
 233 group.  `dummy-variable' will be set to the result of the `(ding)'
 234 form, but who cares?"
 235                                   (group :value (nil nil)
 236                                          (symbol :tag "Variable")
 237                                          (sexp :tag
 238                                                "Value")))
 239
 240                          '(repeat :inline t
 241                                   :tag "Unknown entries"
 242                                   sexp)))
 243     (widget-insert "\n\nYou can also edit the ")
 244     (widget-create 'info-link
 245                    :tag "select method"
 246                    :help-echo "Push me to learn more about select methods."
 247                    "(gnus)Select Methods")
 248     (widget-insert " for the group.\n")
 249     (setq gnus-custom-method
 250           (widget-create 'sexp
 251                          :tag "Method"
 252                          :value (gnus-info-method info)))
 253     (use-local-map widget-keymap)
 254     (widget-setup)))
 255
 256 (defun gnus-group-customize-done (&rest ignore)
 257   "Apply changes and bury the buffer."
 258   (interactive)
 259   (gnus-group-edit-group-done 'params gnus-custom-group
 260                               (widget-value gnus-custom-params))
 261   (gnus-group-edit-group-done 'method gnus-custom-group
 262                               (widget-value gnus-custom-method))
 263   (bury-buffer))
 264
 265 ;;; Score Customization:
 266
 267 (defconst gnus-score-parameters
 268   '((mark (number :tag "Mark") "\
 269 The value of this entry should be a number.
 270 Any articles with a score lower than this number will be marked as read.")
 271
 272     (expunge (number :tag "Expunge") "\
 273 The value of this entry should be a number.
 274 Any articles with a score lower than this number will be removed from
 275 the summary buffer.")
 276
 277     (mark-and-expunge (number :tag "Mark-and-expunge") "\
 278 The value of this entry should be a number.
 279 Any articles with a score lower than this number will be marked as
 280 read and removed from the summary buffer.")
 281
 282     (thread-mark-and-expunge (number :tag "Thread-mark-and-expunge") "\
 283 The value of this entry should be a number.
 284 All articles that belong to a thread that has a total score below this
 285 number will be marked as read and removed from the summary buffer.
 286 `gnus-thread-score-function' says how to compute the total score
 287 for a thread.")
 288
 289     (files (repeat :inline t :tag "Files" file) "\
 290 The value of this entry should be any number of file names.
 291 These files are assumed to be score files as well, and will be loaded
 292 the same way this one was.")
 293
 294     (exclude-files (repeat :inline t :tag "Exclude-files" file) "\
 295 The clue of this entry should be any number of files.
 296 These files will not be loaded, even though they would normally be so,
 297 for some reason or other.")
 298
 299     (eval (sexp :tag "Eval" :value nil) "\
 300 The value of this entry will be `eval'el.
 301 This element will be ignored when handling global score files.")
 302
 303     (read-only (boolean :tag "Read-only" :value t) "\
 304 Read-only score files will not be updated or saved.
 305 Global score files should feature this atom.")
 306
 307     (orphan (number :tag "Orphan") "\
 308 The value of this entry should be a number.
 309 Articles that do not have parents will get this number added to their
 310 scores.  Imagine you follow some high-volume newsgroup, like
 311 `comp.lang.c'.  Most likely you will only follow a few of the threads,
 312 also want to see any new threads.
 313
 314 You can do this with the following two score file entries:
 315
 316      (orphan -500)
 317      (mark-and-expunge -100)
 318
 319 When you enter the group the first time, you will only see the new
 320 threads.  You then raise the score of the threads that you find
 321 interesting (with `I T' or `I S'), and ignore (`C y') the rest.
 322 Next time you enter the group, you will see new articles in the
 323 interesting threads, plus any new threads.
 324
 325 I.e.---the orphan score atom is for high-volume groups where there
 326 exist a few interesting threads which can't be found automatically
 327 by ordinary scoring rules.")
 328
 329     (adapt (choice :tag "Adapt"
 330                    (const t)
 331                    (const ignore)
 332                    (sexp :format "%v"
 333                          :hide-front-space t)) "\
 334 This entry controls the adaptive scoring.
 335 If it is `t', the default adaptive scoring rules will be used.  If it
 336 is `ignore', no adaptive scoring will be performed on this group.  If
 337 it is a list, this list will be used as the adaptive scoring rules.
 338 If it isn't present, or is something other than `t' or `ignore', the
 339 default adaptive scoring rules will be used.  If you want to use
 340 adaptive scoring on most groups, you'd set `gnus-use-adaptive-scoring'
 341 to `t', and insert an `(adapt ignore)' in the groups where you do not
 342 want adaptive scoring.  If you only want adaptive scoring in a few
 343 groups, you'd set `gnus-use-adaptive-scoring' to `nil', and insert
 344 `(adapt t)' in the score files of the groups where you want it.")
 345
 346     (adapt-file (file :tag "Adapt-file") "\
 347 All adaptive score entries will go to the file named by this entry.
 348 It will also be applied when entering the group.  This atom might
 349 be handy if you want to adapt on several groups at once, using the
 350 same adaptive file for a number of groups.")
 351
 352     (local (repeat :tag "Local"
 353                    (group :value (nil nil)
 354                           (symbol :tag "Variable")
 355                           (sexp :tag "Value"))) "\
 356 The value of this entry should be a list of `(VAR VALUE)' pairs.
 357 Each VAR will be made buffer-local to the current summary buffer,
 358 and set to the value specified.  This is a convenient, if somewhat
 359 strange, way of setting variables in some groups if you don't like
 360 hooks much.")
 361     (touched (sexp :format "Touched\n") "Internal variable."))
 362   "Alist of valid symbolic score parameters.
 363
 364 Each entry has the form (NAME TYPE DOC), where NAME is the parameter
 365 itself (a symbol), TYPE is the parameters type (a sexp widget), and DOC is a
 366 documentation string for the parameter.")
 367
 368 (define-widget 'gnus-score-string 'group
 369   "Edit score entries for string-valued headers."
 370   :convert-widget 'gnus-score-string-convert)
 371
 372 (defun gnus-score-string-convert (widget)
 373   ;; Set args appropriately.
 374   (let* ((tag (widget-get widget :tag))
 375          (item `(const :format "" :value ,(downcase tag)))
 376          (match '(string :tag "Match"))
 377          (score '(choice :tag "Score"
 378                         (const :tag "default" nil)
 379                         (integer :format "%v"
 380                                  :hide-front-space t)))
 381          (expire '(choice :tag "Expire"
 382                           (const :tag "off" nil)
 383                           (integer :format "%v"
 384                                    :hide-front-space t)))
 385          (type '(choice :tag "Type"
 386                         :value s
 387                         ;; I should really create a forgiving :match
 388                         ;; function for each type below, that only
 389                         ;; looked at the first letter.
 390                         (const :tag "Regexp" r)
 391                         (const :tag "Regexp (fixed case)" R)
 392                         (const :tag "Substring" s)
 393                         (const :tag "Substring (fixed case)" S)
 394                         (const :tag "Exact" e)
 395                         (const :tag "Exact (fixed case)" E)
 396                         (const :tag "Word" w)
 397                         (const :tag "Word (fixed case)" W)
 398                         (const :tag "default" nil)))
 399          (group `(group ,match ,score ,expire ,type))
 400          (doc (concat (or (widget-get widget :doc)
 401                           (concat "Change score based on the " tag
 402                                   " header.\n"))
 403                       "
 404 You can have an arbitrary number of score entries for this header,
 405 each score entry has four elements:
 406
 407 1. The \"match element\".  This should be the string to look for in the
 408    header.
 409
 410 2. The \"score element\".  This number should be an integer in the
 411    neginf to posinf interval.  This number is added to the score
 412    of the article if the match is successful.  If this element is
 413    not present, the `gnus-score-interactive-default-score' number
 414    will be used instead.  This is 1000 by default.
 415
 416 3. The \"date element\".  This date says when the last time this score
 417    entry matched, which provides a mechanism for expiring the
 418    score entries.  It this element is not present, the score
 419    entry is permanent.  The date is represented by the number of
 420    days since December 31, 1 ce.
 421
 422 4. The \"type element\".  This element specifies what function should
 423    be used to see whether this score entry matches the article.
 424
 425    There are the regexp, as well as substring types, and exact match,
 426    and word match types.  If this element is not present, Gnus will
 427    assume that substring matching should be used.  There is case
 428    sensitive variants of all match types.")))
 429     (widget-put widget :args `(,item
 430                                (repeat :inline t
 431                                        :indent 0
 432                                        :tag ,tag
 433                                        :doc ,doc
 434                                        :format "%t:\n%h%v%i\n\n"
 435                                        (choice :format "%v"
 436                                                :value ("" nil nil s)
 437                                                ,group
 438                                                sexp)))))
 439   widget)
 440
 441 (define-widget 'gnus-score-integer 'group
 442   "Edit score entries for integer-valued headers."
 443   :convert-widget 'gnus-score-integer-convert)
 444
 445 (defun gnus-score-integer-convert (widget)
 446   ;; Set args appropriately.
 447   (let* ((tag (widget-get widget :tag))
 448          (item `(const :format "" :value ,(downcase tag)))
 449          (match '(integer :tag "Match"))
 450          (score '(choice :tag "Score"
 451                         (const :tag "default" nil)
 452                         (integer :format "%v"
 453                                  :hide-front-space t)))
 454          (expire '(choice :tag "Expire"
 455                           (const :tag "off" nil)
 456                           (integer :format "%v"
 457                                    :hide-front-space t)))
 458          (type '(choice :tag "Type"
 459                         :value <
 460                         (const <)
 461                         (const >)
 462                         (const =)
 463                         (const >=)
 464                         (const <=)))
 465          (group `(group ,match ,score ,expire ,type))
 466          (doc (concat (or (widget-get widget :doc)
 467                           (concat "Change score based on the " tag
 468                                   " header.")))))
 469     (widget-put widget :args `(,item
 470                                (repeat :inline t
 471                                        :indent 0
 472                                        :tag ,tag
 473                                        :doc ,doc
 474                                        :format "%t:\n%h%v%i\n\n"
 475                                        ,group))))
 476   widget)
 477
 478 (define-widget 'gnus-score-date 'group
 479   "Edit score entries for date-valued headers."
 480   :convert-widget 'gnus-score-date-convert)
 481
 482 (defun gnus-score-date-convert (widget)
 483   ;; Set args appropriately.
 484   (let* ((tag (widget-get widget :tag))
 485          (item `(const :format "" :value ,(downcase tag)))
 486          (match '(string :tag "Match"))
 487          (score '(choice :tag "Score"
 488                         (const :tag "default" nil)
 489                         (integer :format "%v"
 490                                  :hide-front-space t)))
 491          (expire '(choice :tag "Expire"
 492                           (const :tag "off" nil)
 493                           (integer :format "%v"
 494                                    :hide-front-space t)))
 495          (type '(choice :tag "Type"
 496                         :value regexp
 497                         (const regexp)
 498                         (const before)
 499                         (const at)
 500                         (const after)))
 501          (group `(group ,match ,score ,expire ,type))
 502          (doc (concat (or (widget-get widget :doc)
 503                           (concat "Change score based on the " tag
 504                                   " header."))
 505                       "
 506 For the Date header we have three kinda silly match types: `before',
 507 `at' and `after'.  I can't really imagine this ever being useful, but,
 508 like, it would feel kinda silly not to provide this function.  Just in
 509 case.  You never know.  Better safe than sorry.  Once burnt, twice
 510 shy.  Don't judge a book by its cover.  Never not have sex on a first
 511 date.  (I have been told that at least one person, and I quote,
 512 \"found this function indispensable\", however.)
 513
 514 A more useful match type is `regexp'.  With it, you can match the date
 515 string using a regular expression.  The date is normalized to ISO8601
 516 compact format first---`YYYYMMDDTHHMMSS'.  If you want to match all
 517 articles that have been posted on April 1st in every year, you could
 518 use `....0401.........' as a match string, for instance.  (Note that
 519 the date is kept in its original time zone, so this will match
 520 articles that were posted when it was April 1st where the article was
 521 posted from.  Time zones are such wholesome fun for the whole family,
 522 eh?")))
 523     (widget-put widget :args `(,item
 524                                (repeat :inline t
 525                                        :indent 0
 526                                        :tag ,tag
 527                                        :doc ,doc
 528                                        :format "%t:\n%h%v%i\n\n"
 529                                        ,group))))
 530   widget)
 531
 532 (defvar gnus-custom-scores)
 533 (defvar gnus-custom-score-alist)
 534
 535 (defun gnus-score-customize (file)
 536   "Customize score file FILE."
 537   (interactive (list gnus-current-score-file))
 538   (let ((scores (gnus-score-load file))
 539         (types (mapcar (lambda (entry)
 540                  `(group :format "%v%h\n"
 541                          :doc ,(nth 2 entry)
 542                          (const :format "" ,(nth 0 entry))
 543                          ,(nth 1 entry)))
 544                gnus-score-parameters)))
 545     ;; Ready.
 546     (kill-buffer (gnus-get-buffer-create "*Gnus Customize*"))
 547     (switch-to-buffer (gnus-get-buffer-create "*Gnus Customize*"))
 548     (gnus-custom-mode)
 549     (make-local-variable 'gnus-custom-score-alist)
 550     (setq gnus-custom-score-alist scores)
 551     (widget-insert "Customize the ")
 552     (widget-create 'info-link
 553                    :help-echo "Push me to learn more."
 554                    :tag "score entries"
 555                    "(gnus)Score File Format")
 556     (widget-insert " for\n\t")
 557     (widget-insert file)
 558     (widget-insert "\nand press ")
 559     (widget-create 'push-button
 560                    :tag "done"
 561                    :help-echo "Push me when done customizing."
 562                    :action 'gnus-score-customize-done)
 563     (widget-insert ".\n
 564 Check the [ ] for the entries you want to apply to this score file, then
 565 edit the value to suit your taste.  Don't forget to mark the checkbox,
 566 if you do all your changes will be lost.  ")
 567     (widget-create 'push-button
 568                    :action (lambda (&rest ignore)
 569                              (require 'gnus-audio)
 570                              (gnus-audio-play "Evil_Laugh.au"))
 571                    "Bhahahah!")
 572     (widget-insert "\n\n")
 573     (make-local-variable 'gnus-custom-scores)
 574     (setq gnus-custom-scores
 575           (widget-create 'group
 576                          :value scores
 577                          `(checklist :inline t
 578                                      :greedy t
 579                                      (gnus-score-string :tag "From")
 580                                      (gnus-score-string :tag "Subject")
 581                                      (gnus-score-string :tag "References")
 582                                      (gnus-score-string :tag "Xref")
 583                                      (gnus-score-string :tag "Message-ID")
 584                                      (gnus-score-integer :tag "Lines")
 585                                      (gnus-score-integer :tag "Chars")
 586                                      (gnus-score-date :tag "Date")
 587                                      (gnus-score-string :tag "Head"
 588                                                         :doc "\
 589 Match all headers in the article.
 590
 591 Using one of `Head', `Body', `All' will slow down scoring considerable.
 592 ")
 593                                      (gnus-score-string :tag "Body"
 594                                                         :doc "\
 595 Match the body sans header of the article.
 596
 597 Using one of `Head', `Body', `All' will slow down scoring considerable.
 598 ")
 599                                      (gnus-score-string :tag "All"
 600                                                         :doc "\
 601 Match the entire article, including both headers and body.
 602
 603 Using one of `Head', `Body', `All' will slow down scoring
 604 considerable.
 605 ")
 606                                      (gnus-score-string :tag
 607                                                         "Followup"
 608                                                         :doc "\
 609 Score all followups to the specified authors.
 610
 611 This entry is somewhat special, in that it will match the `From:'
 612 header, and affect the score of not only the matching articles, but
 613 also all followups to the matching articles.  This allows you
 614 e.g. increase the score of followups to your own articles, or decrease
 615 the score of followups to the articles of some known trouble-maker.
 616 ")
 617                                      (gnus-score-string :tag "Thread"
 618                                                         :doc "\
 619 Add a score entry on all articles that are part of a thread.
 620
 621 This match key works along the same lines as the `Followup' match key.
 622 If you say that you want to score on a (sub-)thread that is started by
 623 an article with a `Message-ID' X, then you add a `thread' match.  This
 624 will add a new `thread' match for each article that has X in its
 625 `References' header.  (These new `thread' matches will use the
 626 `Message-ID's of these matching articles.)  This will ensure that you
 627 can raise/lower the score of an entire thread, even though some
 628 articles in the thread may not have complete `References' headers.
 629 Note that using this may lead to undeterministic scores of the
 630 articles in the thread.
 631 ")
 632                                      ,@types)
 633                          '(repeat :inline t
 634                                   :tag "Unknown entries"
 635                                   sexp)))
 636     (use-local-map widget-keymap)
 637     (widget-setup)))
 638
 639 (defun gnus-score-customize-done (&rest ignore)
 640   "Reset the score alist with the present value."
 641   (let ((alist gnus-custom-score-alist)
 642         (value (widget-value gnus-custom-scores)))
 643     (setcar alist (car value))
 644     (setcdr alist (cdr value))
 645     (gnus-score-set 'touched '(t) alist))
 646   (bury-buffer))
 647
 648 ;;; The End:
 649
 650 (provide 'gnus-cus)
 651
 652 ;;; gnus-cus.el ends here