1 ;;; gnus-score.el --- scoring code for Gnus
3 ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
4 ;; 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
6 ;; Author: Per Abrahamsen <amanda@iesd.auc.dk>
7 ;; Lars Magne Ingebrigtsen <larsi@gnus.org>
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software: you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation, either version 3 of the License, or
15 ;; (at your option) any later version.
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
29 (eval-when-compile (require 'cl))
38 (defcustom gnus-global-score-files nil
39 "List of global score files and directories.
40 Set this variable if you want to use people's score files. One entry
41 for each score file or each score file directory. Gnus will decide
42 by itself what score files are applicable to which group.
44 Say you want to use the single score file
45 \"/ftp.gnus.org@ftp:/pub/larsi/ding/score/soc.motss.SCORE\" and all
46 score files in the \"/ftp.some-where:/pub/score\" directory.
48 (setq gnus-global-score-files
49 '(\"/ftp.gnus.org:/pub/larsi/ding/score/soc.motss.SCORE\"
50 \"/ftp.some-where:/pub/score\"))"
51 :group 'gnus-score-files
54 (defcustom gnus-score-file-single-match-alist nil
55 "Alist mapping regexps to lists of score files.
56 Each element of this alist should be of the form
57 (\"REGEXP\" [ \"SCORE-FILE-1\" ] [ \"SCORE-FILE-2\" ] ... )
59 If the name of a group is matched by REGEXP, the corresponding scorefiles
60 will be used for that group.
61 The first match found is used, subsequent matching entries are ignored (to
62 use multiple matches, see `gnus-score-file-multiple-match-alist').
64 These score files are loaded in addition to any files returned by
65 `gnus-score-find-score-files-function'."
66 :group 'gnus-score-files
67 :type '(repeat (cons regexp (repeat file))))
69 (defcustom gnus-score-file-multiple-match-alist nil
70 "Alist mapping regexps to lists of score files.
71 Each element of this alist should be of the form
72 (\"REGEXP\" [ \"SCORE-FILE-1\" ] [ \"SCORE-FILE-2\" ] ... )
74 If the name of a group is matched by REGEXP, the corresponding scorefiles
75 will be used for that group.
76 If multiple REGEXPs match a group, the score files corresponding to each
77 match will be used (for only one match to be used, see
78 `gnus-score-file-single-match-alist').
80 These score files are loaded in addition to any files returned by
81 `gnus-score-find-score-files-function'."
82 :group 'gnus-score-files
83 :type '(repeat (cons regexp (repeat file))))
85 (defcustom gnus-score-file-suffix "SCORE"
86 "Suffix of the score files."
87 :group 'gnus-score-files
90 (defcustom gnus-adaptive-file-suffix "ADAPT"
91 "Suffix of the adaptive score files."
92 :group 'gnus-score-files
93 :group 'gnus-score-adapt
96 (defcustom gnus-score-find-score-files-function 'gnus-score-find-bnews
97 "Function used to find score files.
98 The function will be called with the group name as the argument, and
99 should return a list of score files to apply to that group. The score
100 files do not actually have to exist.
102 Predefined values are:
104 `gnus-score-find-single': Only apply the group's own score file.
105 `gnus-score-find-hierarchical': Also apply score files from parent groups.
106 `gnus-score-find-bnews': Apply score files whose names matches.
108 See the documentation to these functions for more information.
110 This variable can also be a list of functions to be called. Each
111 function is given the group name as argument and should either return
112 a list of score files, or a list of score alists.
114 If functions other than these pre-defined functions are used,
115 the `a' symbolic prefix to the score commands will always use
117 :group 'gnus-score-files
118 :type '(radio (function-item gnus-score-find-single)
119 (function-item gnus-score-find-hierarchical)
120 (function-item gnus-score-find-bnews)
121 (repeat :tag "List of functions"
122 (choice (function :tag "Other" :value 'ignore)
123 (function-item gnus-score-find-single)
124 (function-item gnus-score-find-hierarchical)
125 (function-item gnus-score-find-bnews)))
126 (function :tag "Other" :value 'ignore)))
128 (defcustom gnus-score-interactive-default-score 1000
129 "*Scoring commands will raise/lower the score with this number as the default."
130 :group 'gnus-score-default
133 (defcustom gnus-score-expiry-days 7
134 "*Number of days before unused score file entries are expired.
135 If this variable is nil, no score file entries will be expired."
136 :group 'gnus-score-expire
137 :type '(choice (const :tag "never" nil)
140 (defcustom gnus-update-score-entry-dates t
141 "*If non-nil, update matching score entry dates.
142 If this variable is nil, then score entries that provide matches
143 will be expired along with non-matching score entries."
144 :group 'gnus-score-expire
147 (defcustom gnus-decay-scores nil
148 "*If non-nil, decay non-permanent scores.
150 If it is a regexp, only decay score files matching regexp."
151 :group 'gnus-score-decay
152 :type `(choice (const :tag "never" nil)
153 (const :tag "always" t)
154 (const :tag "adaptive score files"
155 ,(concat "\\." gnus-adaptive-file-suffix "\\'"))
158 (defcustom gnus-decay-score-function 'gnus-decay-score
159 "*Function called to decay a score.
160 It is called with one parameter -- the score to be decayed."
161 :group 'gnus-score-decay
162 :type '(radio (function-item gnus-decay-score)
163 (function :tag "Other")))
165 (defcustom gnus-score-decay-constant 3
166 "*Decay all \"small\" scores with this amount."
167 :group 'gnus-score-decay
170 (defcustom gnus-score-decay-scale .05
171 "*Decay all \"big\" scores with this factor."
172 :group 'gnus-score-decay
175 (defcustom gnus-home-score-file nil
176 "Variable to control where interactive score entries are to go.
180 This file will be used as the home score file.
183 The result of this function will be used as the home score file.
184 The function will be passed the name of the group as its
188 The elements in this list can be:
190 * `(regexp file-name ...)'
191 If the `regexp' matches the group name, the first `file-name'
192 will be used as the home score file. (Multiple filenames are
193 allowed so that one may use gnus-score-file-single-match-alist to
197 If the function returns non-nil, the result will be used
198 as the home score file. The function will be passed the
199 name of the group as its parameter.
201 * A string. Use the string as the home score file.
203 The list will be traversed from the beginning towards the end looking
205 :group 'gnus-score-files
206 :type '(choice string
207 (repeat (choice string
208 (cons regexp (repeat file))