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1 ;;; gnus-gl.el --- an interface to GroupLens for Gnus
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2 ;; Copyright (C) 1995,96 Free Software Foundation, Inc.
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3
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4 ;; Author: Brad Miller <bmiller@cs.umn.edu>
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5 ;; Keywords: news, score
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6
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7 ;; This file is part of GNU Emacs.
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8
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9 ;; GNU Emacs is free software; you can redistribute it and/or modify
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10 ;; it under the terms of the GNU General Public License as published by
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11 ;; the Free Software Foundation; either version 2, or (at your option)
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12 ;; any later version.
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13
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14 ;; GNU Emacs is distributed in the hope that it will be useful,
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15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 ;; GNU General Public License for more details.
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18
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19 ;; You should have received a copy of the GNU General Public License
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20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
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21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 ;; Boston, MA 02111-1307, USA.
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23
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24 ;;; Commentary:
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25
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26 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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27 ;; GroupLens software and documentation is copyright (c) 1995 by Paul
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28 ;; Resnick (Massachusetts Institute of Technology); Brad Miller, John
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29 ;; Riedl, Jon Herlocker, and Joseph Konstan (University of Minnesota),
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30 ;; and David Maltz (Carnegie-Mellon University).
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31 ;;
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32 ;; Permission to use, copy, modify, and distribute this documentation
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33 ;; for non-commercial and commercial purposes without fee is hereby
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34 ;; granted provided that this copyright notice and permission notice
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35 ;; appears in all copies and that the names of the individuals and
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36 ;; institutions holding this copyright are not used in advertising or
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37 ;; publicity pertaining to this software without specific, written
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38 ;; prior permission. The copyright holders make no representations
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39 ;; about the suitability of this software and documentation for any
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40 ;; purpose. It is provided ``as is'' without express or implied
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41 ;; warranty.
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42 ;;
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43 ;; The copyright holders request that they be notified of
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44 ;; modifications of this code. Please send electronic mail to
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45 ;; grouplens@cs.umn.edu for more information or to announce derived
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46 ;; works.
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47 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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48 ;; Author: Brad Miller
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49 ;;
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50 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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51 ;;
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52 ;; User Documentation:
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53 ;; To use GroupLens you must load this file.
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54 ;; You must also register a pseudonym with the Better Bit Bureau.
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55 ;; http://www.cs.umn.edu/Research/GroupLens
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56 ;;
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57 ;; ---------------- For your .emacs or .gnus file ----------------
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58 ;;
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59 ;; As of version 2.5, grouplens now works as a minor mode of
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60 ;; gnus-summary-mode. To get make that work you just need a couple of
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61 ;; hooks.
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62 ;; (setq gnus-use-grouplens t)
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63 ;; (setq grouplens-pseudonym "")
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64 ;; (setq grouplens-bbb-host "grouplens.cs.umn.edu")
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65 ;;
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66 ;; (setq gnus-summary-default-score 0)
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67 ;;
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68 ;; USING GROUPLENS
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69 ;; How do I Rate an article??
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70 ;; Before you type n to go to the next article, hit a number from 1-5
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71 ;; Type r in the summary buffer and you will be prompted.
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72 ;; Note that when you're in grouplens-minor-mode 'r' maskes the
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73 ;; usual reply binding for 'r'
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74 ;;
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75 ;; What if, Gasp, I find a bug???
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76 ;; Please type M-x gnus-gl-submit-bug-report. This will set up a
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77 ;; mail buffer with the state of variables and buffers that will help
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78 ;; me debug the problem. A short description up front would help too!
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79 ;;
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80 ;; How do I display the prediction for an aritcle:
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81 ;; If you set the gnus-summary-line-format as shown above, the score
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82 ;; (prediction) will be shown automatically.
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83 ;;
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84 ;;
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85 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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86 ;; Programmer Notes
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87 ;; 10/9/95
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88 ;; gnus-scores-articles contains the articles
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89 ;; When scoring is done, the call tree looks something like:
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90 ;; gnus-possibly-score-headers
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91 ;; ==> gnus-score-headers
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92 ;; ==> gnus-score-load-file
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93 ;; ==> get-all-mids (from the eval form)
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94 ;;
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95 ;; it would be nice to have one that gets called after all the other
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96 ;; headers have been scored.
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97 ;; we may want a variable gnus-grouplens-scale-factor
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98 ;; and gnus-grouplens-offset this would probably be either -3 or 0
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99 ;; to make the scores centered around zero or not.
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100 ;; Notes 10/12/95
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101 ;; According to Lars, Norse god of gnus, the simple way to insert a
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102 ;; call to an external function is to have a function added to the
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103 ;; variable gnus-score-find-files-function This new function
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104 ;; gnus-grouplens-score-alist will return a core alist that
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105 ;; has (("message-id" ("<message-id-xxxx>" score) ("<message-id-xxxy>" score))
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106 ;; This seems like it would be pretty inefficient, though workable.
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107 ;;
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108 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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109 ;; TODO
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110 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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111 ;;
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112 ;; 3. Add some more ways to rate messages
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113 ;; 4. Better error handling for token timeouts.
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114 ;;
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115 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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116 ;; bugs
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117 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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118 ;;
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119
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120 ;;; Code:
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121
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122 (require 'gnus-score)
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123 (require 'cl)
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124
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125 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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126 ;;;; User variables
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127 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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128
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129 (defvar gnus-summary-grouplens-line-format
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130 "%U%R%z%l%I%(%[%4L: %-20,20n%]%) %s\n"
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131 "*The line format spec in summary GroupLens mode buffers.")
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132
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133 (defvar grouplens-pseudonym ""
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134 "User's pseudonym. This pseudonym is obtained during the registration process")
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135
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136 (defvar grouplens-bbb-host "grouplens.cs.umn.edu"
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137 "Host where the bbbd is running" )
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138
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139 (defvar grouplens-bbb-port 9000
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140 "Port where the bbbd is listening" )
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141
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142 (defvar grouplens-newsgroups
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143 '("comp.lang.c++" "rec.humor" "rec.food.recipes" "comp.groupware"
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144 "mn.general" "rec.arts.movies" "rec.arts.movies.current-films"
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145 "comp.lang.java" "comp.os.linux.announce" "comp.os.linux.misc"
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146 "comp.os.linux.development.apps" "comp.os.linux.development.system")
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147 "*Groups that are part of the GroupLens experiment.")
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148
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149 (defvar grouplens-prediction-display 'prediction-spot
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150 "valid values are:
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151 prediction-spot -- an * corresponding to the prediction between 1 and 5,
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152 confidence-interval -- a numeric confidence interval
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153 prediction-bar -- |##### | the longer the bar, the better the article,
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154 confidence-bar -- | ----- } the prediction is in the middle of the bar,
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155 confidence-spot -- ) * | the spot gets bigger with more confidence,
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156 prediction-num -- plain-old numeric value,
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157 confidence-plus-minus -- prediction +/i confidence")
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158
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159 (defvar grouplens-score-offset 0
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160 "Offset the prediction by this value.
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161 Setting this variable to -2 would have the following effect on
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162 GroupLens scores:
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163
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164 1 --> -2
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165 2 --> -1
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166 3 --> 0
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167 4 --> 1
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168 5 --> 2
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169
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170 The reason is that a user might want to do this is to combine
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171 GroupLens predictions with scores calculated by other score methods.")
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172
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173 (defvar grouplens-score-scale-factor 1
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174 "This variable allows the user to magnify the effect of GroupLens scores.
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175 The scale factor is applied after the offset.")
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176
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177 (defvar gnus-grouplens-override-scoring 'override
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178 "Tell Grouplens to override the normal Gnus scoring mechanism.
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179 GroupLens scores can be combined with gnus scores in one of three ways.
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180 'override -- just use grouplens predictions for grouplens groups
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181 'combine -- combine grouplens scores with gnus scores
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182 'separate -- treat grouplens scores completely separate from gnus")
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183
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184
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185 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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186 ;;;; Program global variables
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187 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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188 (defvar grouplens-bbb-token "0"
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189 "Current session token number")
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190
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191 (defvar grouplens-bbb-process nil
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192 "Process Id of current bbbd network stream process")
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193
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194 (defvar grouplens-bbb-buffer nil
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195 "Buffer associated with the BBBD process")
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196
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197 (defvar grouplens-rating-alist nil
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198 "Current set of message-id rating pairs")
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199
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200 (defvar grouplens-current-hashtable (make-hash-table :test 'equal :size 100))
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201 ;; this seems like a pretty ugly way to get around the problem, but If
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202 ;; I don't do this, then the compiler complains when I call gethash
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203 ;;
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204 (eval-when-compile (setq grouplens-current-hashtable
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205 (make-hash-table :test 'equal :size 100)))
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206
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207 (defvar grouplens-current-group nil)
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208
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209 (defvar bbb-mid-list nil)
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210
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211 (defvar bbb-alist nil)
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212
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213 (defvar bbb-timeout-secs 10
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214 "Number of seconds to wait for some response from the BBB.
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215 If this times out we give up and assume that something has died..." )
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216
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217 (defvar grouplens-previous-article nil
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218 "Message-ID of the last article read.")
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219
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220 (defvar bbb-read-point)
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221 (defvar bbb-response-point)
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222
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223 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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224 ;;;; Utility Functions
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225 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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226 (defun bbb-connect-to-bbbd (host port)
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227 (unless grouplens-bbb-buffer
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228 (setq grouplens-bbb-buffer
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229 (get-buffer-create (format " *BBBD trace: %s*" host)))
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230 (save-excursion
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231 (set-buffer grouplens-bbb-buffer)
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232 (make-local-variable 'bbb-read-point)
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233 (setq bbb-read-point (point-min))))
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234 ;; clear the trace buffer of old output
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235 (save-excursion
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236 (set-buffer grouplens-bbb-buffer)
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237 (erase-buffer))
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238 ;; open the connection to the server
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239 (setq grouplens-bbb-process nil)
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240 (catch 'done
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241 (condition-case error
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242 (setq grouplens-bbb-process
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243 (open-network-stream "BBBD" grouplens-bbb-buffer host port))
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244 (error (gnus-message 3 "Error: Failed to connect to BBB")
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245 nil))
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246 (and (null grouplens-bbb-process)
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247 (throw 'done nil))
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248 ;; (set-process-filter grouplens-bbb-process 'bbb-process-filter)
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249 (save-excursion
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250 (set-buffer grouplens-bbb-buffer)
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251 (setq bbb-read-point (point-min))
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252 (or (bbb-read-response grouplens-bbb-process)
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253 (throw 'done nil))))
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254 grouplens-bbb-process)
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255
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256 ;; (defun bbb-process-filter (process output)
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257 ;; (save-excursion
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258 ;; (set-buffer (bbb-process-buffer process))
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259 ;; (goto-char (point-max))
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260 ;; (insert output)))
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261
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262 (defun bbb-send-command (process command)
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263 (goto-char (point-max))
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264 (insert command)
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265 (insert "\r\n")
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266 (setq bbb-read-point (point))
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267 (setq bbb-response-point (point))
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268 (set-marker (process-mark process) (point)) ; process output also comes here
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269 (process-send-string process command)
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270 (process-send-string process "\r\n"))
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271
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272 (defun bbb-read-response (process) ; &optional return-response-string)
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273 "This function eats the initial response of OK or ERROR from the BBB."
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274 (let ((case-fold-search nil)
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275 match-end)
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276 (goto-char bbb-read-point)
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277 (while (and (not (search-forward "\r\n" nil t))
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278 (accept-process-output process bbb-timeout-secs))
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279 (goto-char bbb-read-point))
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280 (setq match-end (point))
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281 (goto-char bbb-read-point)
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282 (setq bbb-read-point match-end)
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283 (looking-at "OK")))
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284
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285 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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286 ;;;; Login Functions
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287 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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288 (defun bbb-login ()
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289 "return the token number if login is successful, otherwise return nil"
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290 (interactive)
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291 (setq grouplens-bbb-token nil)
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292 (if (not (equal grouplens-pseudonym ""))
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293 (let ((bbb-process
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294 (bbb-connect-to-bbbd grouplens-bbb-host grouplens-bbb-port)))
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295 (if bbb-process
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296 (save-excursion
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297 (set-buffer (process-buffer bbb-process))
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298 (bbb-send-command bbb-process
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299 (concat "login " grouplens-pseudonym))
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300 (if (bbb-read-response bbb-process)
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301 (setq grouplens-bbb-token (bbb-extract-token-number))
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302 (gnus-message 3 "Error: Grouplens login failed")))))
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303 (gnus-message 3 "Error: you must set a pseudonym"))
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304 grouplens-bbb-token)
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305
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306 (defun bbb-extract-token-number ()
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307 (let ((token-pos (search-forward "token=" nil t) ))
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308 (if (looking-at "[0-9]+")
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309 (buffer-substring token-pos (match-end 0)))))
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310
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311 (gnus-add-shutdown 'bbb-logout 'gnus)
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312
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313 (defun bbb-logout ()
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314 "logout of bbb session"
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315 (let ((bbb-process
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316 (bbb-connect-to-bbbd grouplens-bbb-host grouplens-bbb-port)))
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317 (if bbb-process
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318 (save-excursion
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319 (set-buffer (process-buffer bbb-process))
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320 (bbb-send-command bbb-process (concat "logout " grouplens-bbb-token))
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321 (bbb-read-response bbb-process))
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322 nil)))
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323
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324 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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325 ;;;; Get Predictions
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326 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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327
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328 (defun bbb-build-mid-scores-alist (groupname)
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329 "this function can be called as part of the function to return the
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330 list of score files to use. See the gnus variable
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331 gnus-score-find-score-files-function.
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332
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333 *Note:* If you want to use grouplens scores along with calculated scores,
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334 you should see the offset and scale variables. At this point, I don't
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335 recommend using both scores and grouplens predictions together."
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336 (setq grouplens-current-group groupname)
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337 (if (member groupname grouplens-newsgroups)
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338 (let* ((mid-list (bbb-get-all-mids))
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339 (predict-list (bbb-get-predictions mid-list groupname)))
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340 (setq grouplens-previous-article nil)
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341 ;; scores-alist should be a list of lists:
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342 ;; ((("message-id" ("<mid1>" score1 nil s) ("<mid2> score2 nil s))))
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343 ;;`((("message-id" . ,predict-list))) ; Yes, this is the return value
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344 (list (list (list (append (list "message-id") predict-list)))))
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345 nil))
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346
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347 (defun bbb-get-predictions (midlist groupname)
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348 "Ask the bbb for predictions, and build up the score alist."
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349 (if (or (null grouplens-bbb-token)
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350 (equal grouplens-bbb-token "0"))
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351 (progn
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352 (gnus-message 3 "Error: You are not logged in to a BBB")
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353 nil)
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354 (gnus-message 5 "Fetching Predictions...")
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355 (let (predict-list
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356 (predict-command (bbb-build-predict-command midlist groupname
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357 grouplens-bbb-token))
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358 (bbb-process (bbb-connect-to-bbbd grouplens-bbb-host
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359 grouplens-bbb-port)))
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360 (if bbb-process
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361 (save-excursion
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362 (set-buffer (process-buffer bbb-process))
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363 (bbb-send-command bbb-process predict-command)
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364 (if (bbb-read-response bbb-process)
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365 (setq predict-list (bbb-get-prediction-response bbb-process))
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366 (gnus-message 1 "Invalid Token, login and try again")
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367 (ding))))
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368 (setq bbb-alist predict-list))))
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369
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370 (defun bbb-get-all-mids ()
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371 (let ((index (nth 1 (assoc "message-id" gnus-header-index)))
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372 (articles gnus-newsgroup-headers)
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373 art this)
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374 (setq bbb-mid-list nil)
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375 (while articles
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376 (progn (setq art (car articles)
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377 this (aref art index)
|
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378 articles (cdr articles))
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379 (setq bbb-mid-list (cons this bbb-mid-list))))
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380 bbb-mid-list))
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381
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382 (defun bbb-build-predict-command (mlist grpname token)
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383 (let ((cmd (concat "getpredictions " token " " grpname "\r\n"))
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384 art)
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385 (while mlist
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386 (setq art (car mlist)
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387 cmd (concat cmd art "\r\n")
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388 mlist (cdr mlist)))
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389 (setq cmd (concat cmd ".\r\n"))
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390 cmd))
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391
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392 (defun bbb-get-prediction-response (process)
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393 (let ((case-fold-search nil)
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394 match-end)
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395 (goto-char bbb-read-point)
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396 (while (and (not (search-forward ".\r\n" nil t))
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397 (accept-process-output process bbb-timeout-secs))
|
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398 (goto-char bbb-read-point))
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399 (setq match-end (point))
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400 (goto-char (+ bbb-response-point 4)) ;; we ought to be right before OK
|
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|
401 (bbb-build-response-alist)))
|
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402
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403 ;; build-response-alist assumes that the cursor has been positioned at
|
|
|
404 ;; the first line of the list of mid/rating pairs. For now we will
|
|
|
405 ;; use a prediction of 99 to signify no prediction. Ultimately, we
|
|
|
406 ;; should just ignore messages with no predictions.
|
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407 (defun bbb-build-response-alist ()
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408 (let ((resp nil)
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|
409 (match-end (point)))
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|
410 (setq grouplens-current-hashtable (make-hash-table :test 'equal :size 100))
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|
|
411 (while
|
|
|
412 (cond ((looking-at "\\(<.*>\\) :nopred=")
|
|
|
413 (push `(,(bbb-get-mid) ,gnus-summary-default-score nil s) resp)
|
|
|
414 (forward-line 1)
|
|
|
415 t)
|
|
|
416 ((looking-at "\\(<.*>\\) :pred=\\([0-9]\.[0-9][0-9]\\) :conflow=\\([0-9]\.[0-9][0-9]\\) :confhigh=\\([0-9]\.[0-9][0-9]\\)")
|
|
|
417 (push `(,(bbb-get-mid) ,(bbb-get-pred) nil s) resp)
|
|
|
418 (cl-puthash (bbb-get-mid)
|
|
|
419 (list (bbb-get-pred) (bbb-get-confl) (bbb-get-confh))
|
|
|
420 grouplens-current-hashtable)
|
|
|
421 (forward-line 1)
|
|
|
422 t)
|
|
|
423 ((looking-at "\\(<.*>\\) :pred=\\([0-9]\.[0-9][0-9]\\)")
|
|
|
424 (push `(,(bbb-get-mid) ,(bbb-get-pred) nil s) resp)
|
|
|
425 (cl-puthash (bbb-get-mid)
|
|
|
426 (list (bbb-get-pred) 0 0)
|
|
|
427 grouplens-current-hashtable)
|
|
|
428 (forward-line 1)
|
|
|
429 t)
|
|
|
430 (t nil)))
|
|
|
431 resp))
|
|
|
432
|
|
|
433 ;; these two functions assume that there is an active match lying
|
|
|
434 ;; around. Where the first parenthesized expression is the
|
|
|
435 ;; message-id, and the second is the prediction. Since gnus assumes
|
|
|
436 ;; that scores are integer values?? we round the prediction.
|
|
|
437 (defun bbb-get-mid ()
|
|
|
438 (buffer-substring (match-beginning 1) (match-end 1)))
|
|
|
439
|
|
|
440 (defun bbb-get-pred ()
|
|
|
441 (let ((tpred (string-to-number (buffer-substring
|
|
|
442 (match-beginning 2)
|
|
|
443 (match-end 2)))))
|
|
|
444 (if (> tpred 0)
|
|
|
445 (round (* grouplens-score-scale-factor (+ grouplens-score-offset tpred)))
|
|
|
446 1)))
|
|
|
447
|
|
|
448 (defun bbb-get-confl ()
|
|
|
449 (string-to-number (buffer-substring (match-beginning 3) (match-end 3))))
|
|
|
450
|
|
|
451 (defun bbb-get-confh ()
|
|
|
452 (string-to-number (buffer-substring (match-beginning 4) (match-end 4))))
|
|
|
453
|
|
|
454 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
455 ;;;; Prediction Display
|
|
|
456 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
457 (defconst grplens-rating-range 4.0)
|
|
|
458 (defconst grplens-maxrating 5)
|
|
|
459 (defconst grplens-minrating 1)
|
|
|
460 (defconst grplens-predstringsize 12)
|
|
|
461
|
|
|
462 (defvar gnus-tmp-score)
|
|
|
463 (defun bbb-grouplens-score (header)
|
|
|
464 (if (eq gnus-grouplens-override-scoring 'separate)
|
|
|
465 (bbb-grouplens-other-score header)
|
|
|
466 (let* ((rate-string (make-string 12 ? ))
|
|
|
467 (mid (aref header (nth 1 (assoc "message-id" gnus-header-index))))
|
|
|
468 (hashent (gethash mid grouplens-current-hashtable))
|
|
|
469 (iscore gnus-tmp-score)
|
|
|
470 (low (car (cdr hashent)))
|
|
|
471 (high (car (cdr (cdr hashent)))))
|
|
|
472 (aset rate-string 0 ?|)
|
|
|
473 (aset rate-string 11 ?|)
|
|
|
474 (unless (member grouplens-current-group grouplens-newsgroups)
|
|
|
475 (unless (equal grouplens-prediction-display 'prediction-num)
|
|
|
476 (cond ((< iscore 0)
|
|
|
477 (setq iscore 1))
|
|
|
478 ((> iscore 5)
|
|
|
479 (setq iscore 5))))
|
|
|
480 (setq low 0)
|
|
|
481 (setq high 0))
|
|
|
482 (if (and (bbb-valid-score iscore)
|
|
|
483 (not (null mid)))
|
|
|
484 (cond
|
|
|
485 ;; prediction-spot
|
|
|
486 ((equal grouplens-prediction-display 'prediction-spot)
|
|
|
487 (setq rate-string (bbb-fmt-prediction-spot rate-string iscore)))
|
|
|
488 ;; confidence-interval
|
|
|
489 ((equal grouplens-prediction-display 'confidence-interval)
|
|
|
490 (setq rate-string (bbb-fmt-confidence-interval iscore low high)))
|
|
|
491 ;; prediction-bar
|
|
|
492 ((equal grouplens-prediction-display 'prediction-bar)
|
|
|
493 (setq rate-string (bbb-fmt-prediction-bar rate-string iscore)))
|
|
|
494 ;; confidence-bar
|
|
|
495 ((equal grouplens-prediction-display 'confidence-bar)
|
|
|
496 (setq rate-string (format "| %4.2f |" iscore)))
|
|
|
497 ;; confidence-spot
|
|
|
498 ((equal grouplens-prediction-display 'confidence-spot)
|
|
|
499 (setq rate-string (format "| %4.2f |" iscore)))
|
|
|
500 ;; prediction-num
|
|
|
501 ((equal grouplens-prediction-display 'prediction-num)
|
|
|
502 (setq rate-string (bbb-fmt-prediction-num iscore)))
|
|
|
503 ;; confidence-plus-minus
|
|
|
504 ((equal grouplens-prediction-display 'confidence-plus-minus)
|
|
|
505 (setq rate-string (bbb-fmt-confidence-plus-minus iscore low high))
|
|
|
506 )
|
|
|
507 (t (gnus-message 3 "Invalid prediction display type")))
|
|
|
508 (aset rate-string 5 ?N) (aset rate-string 6 ?A))
|
|
|
509 rate-string)))
|
|
|
510
|
|
|
511 ;;
|
|
|
512 ;; Gnus user format function that doesn't depend on
|
|
|
513 ;; bbb-build-mid-scores-alist being used as the score function, but is
|
|
|
514 ;; instead called from gnus-select-group-hook. -- LAB
|
|
|
515 (defun bbb-grouplens-other-score (header)
|
|
|
516 (if (not (member grouplens-current-group grouplens-newsgroups))
|
|
|
517 ;; Return an empty string
|
|
|
518 ""
|
|
|
519 (let* ((rate-string (make-string 12 ? ))
|
|
|
520 (mid (aref header (nth 1 (assoc "message-id" gnus-header-index))))
|
|
|
521 (hashent (gethash mid grouplens-current-hashtable))
|
|
|
522 (pred (or (nth 0 hashent) 0))
|
|
|
523 (low (nth 1 hashent))
|
|
|
524 (high (nth 2 hashent)))
|
|
|
525 ;; Init rate-string
|
|
|
526 (aset rate-string 0 ?|)
|
|
|
527 (aset rate-string 11 ?|)
|
|
|
528 (unless (equal grouplens-prediction-display 'prediction-num)
|
|
|
529 (cond ((< pred 0)
|
|
|
530 (setq pred 1))
|
|
|
531 ((> pred 5)
|
|
|
532 (setq pred 5))))
|
|
|
533 ;; If no entry in BBB hash mark rate string as NA and return
|
|
|
534 (cond
|
|
|
535 ((null hashent)
|
|
|
536 (aset rate-string 5 ?N)
|
|
|
537 (aset rate-string 6 ?A)
|
|
|
538 rate-string)
|
|
|
539
|
|
|
540 ((equal grouplens-prediction-display 'prediction-spot)
|
|
|
541 (bbb-fmt-prediction-spot rate-string pred))
|
|
|
542
|
|
|
543 ((equal grouplens-prediction-display 'confidence-interval)
|
|
|
544 (bbb-fmt-confidence-interval pred low high))
|
|
|
545
|
|
|
546 ((equal grouplens-prediction-display 'prediction-bar)
|
|
|
547 (bbb-fmt-prediction-bar rate-string pred))
|
|
|
548
|
|
|
549 ((equal grouplens-prediction-display 'confidence-bar)
|
|
|
550 (format "| %4.2f |" pred))
|
|
|
551
|
|
|
552 ((equal grouplens-prediction-display 'confidence-spot)
|
|
|
553 (format "| %4.2f |" pred))
|
|
|
554
|
|
|
555 ((equal grouplens-prediction-display 'prediction-num)
|
|
|
556 (bbb-fmt-prediction-num pred))
|
|
|
557
|
|
|
558 ((equal grouplens-prediction-display 'confidence-plus-minus)
|
|
|
559 (bbb-fmt-confidence-plus-minus pred low high))
|
|
|
560
|
|
|
561 (t
|
|
|
562 (gnus-message 3 "Invalid prediction display type")
|
|
|
563 (aset rate-string 0 ?|)
|
|
|
564 (aset rate-string 11 ?|)
|
|
|
565 rate-string)))))
|
|
|
566
|
|
|
567 (defun bbb-valid-score (score)
|
|
|
568 (or (equal grouplens-prediction-display 'prediction-num)
|
|
|
569 (and (>= score grplens-minrating)
|
|
|
570 (<= score grplens-maxrating))))
|
|
|
571
|
|
|
572 (defun bbb-requires-confidence (format-type)
|
|
|
573 (or (equal format-type 'confidence-plus-minus)
|
|
|
574 (equal format-type 'confidence-spot)
|
|
|
575 (equal format-type 'confidence-interval)))
|
|
|
576
|
|
|
577 (defun bbb-have-confidence (clow chigh)
|
|
|
578 (not (or (null clow)
|
|
|
579 (null chigh))))
|
|
|
580
|
|
|
581 (defun bbb-fmt-prediction-spot (rate-string score)
|
|
|
582 (aset rate-string
|
|
|
583 (round (* (/ (- score grplens-minrating) grplens-rating-range)
|
|
|
584 (+ (- grplens-predstringsize 4) 1.49)))
|
|
|
585 ?*)
|
|
|
586 rate-string)
|
|
|
587
|
|
|
588 (defun bbb-fmt-confidence-interval (score low high)
|
|
|
589 (if (bbb-have-confidence low high)
|
|
|
590 (format "|%4.2f-%4.2f |" low high)
|
|
|
591 (bbb-fmt-prediction-num score)))
|
|
|
592
|
|
|
593 (defun bbb-fmt-confidence-plus-minus (score low high)
|
|
|
594 (if (bbb-have-confidence low high)
|
|
|
595 (format "|%3.1f+/-%4.2f|" score (/ (- high low) 2.0))
|
|
|
596 (bbb-fmt-prediction-num score)))
|
|
|
597
|
|
|
598 (defun bbb-fmt-prediction-bar (rate-string score)
|
|
|
599 (let* ((i 1)
|
|
|
600 (step (/ grplens-rating-range (- grplens-predstringsize 4)))
|
|
|
601 (half-step (/ step 2))
|
|
|
602 (loc (- grplens-minrating half-step)))
|
|
|
603 (while (< i (- grplens-predstringsize 2))
|
|
|
604 (if (> score loc)
|
|
|
605 (aset rate-string i ?#)
|
|
|
606 (aset rate-string i ? ))
|
|
|
607 (setq i (+ i 1))
|
|
|
608 (setq loc (+ loc step)))
|
|
|
609 )
|
|
|
610 rate-string)
|
|
|
611
|
|
|
612 (defun bbb-fmt-prediction-num (score)
|
|
|
613 (format "| %4.2f |" score))
|
|
|
614
|
|
|
615 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
616 ;;;; Put Ratings
|
|
|
617 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
618
|
|
|
619 ;; The message-id for the current article can be found in
|
|
|
620 ;; (aref gnus-current-headers (nth 1 (assoc "message-id" gnus-header-index)))
|
|
|
621
|
|
|
622 (defun bbb-put-ratings ()
|
|
|
623 (if (and grouplens-rating-alist
|
|
|
624 (member gnus-newsgroup-name grouplens-newsgroups))
|
|
|
625 (let ((bbb-process (bbb-connect-to-bbbd grouplens-bbb-host
|
|
|
626 grouplens-bbb-port))
|
|
|
627 (rate-command (bbb-build-rate-command grouplens-rating-alist)))
|
|
|
628 (if bbb-process
|
|
|
629 (save-excursion
|
|
|
630 (set-buffer (process-buffer bbb-process))
|
|
|
631 (gnus-message 5 "Sending Ratings...")
|
|
|
632 (bbb-send-command bbb-process rate-command)
|
|
|
633 (if (bbb-read-response bbb-process)
|
|
|
634 (setq grouplens-rating-alist nil)
|
|
|
635 (gnus-message 1
|
|
|
636 "Token timed out: call bbb-login and quit again")
|
|
|
637 (ding))
|
|
|
638 (gnus-message 5 "Sending Ratings...Done"))
|
|
|
639 (gnus-message 3 "No BBB connection")))
|
|
|
640 (setq grouplens-rating-alist nil)))
|
|
|
641
|
|
|
642 (defun bbb-build-rate-command (rate-alist)
|
|
|
643 (let (this
|
|
|
644 (cmd (concat "putratings " grouplens-bbb-token
|
|
|
645 " " grouplens-current-group " \r\n")))
|
|
|
646 (while rate-alist
|
|
|
647 (setq this (car rate-alist)
|
|
|
648 cmd (concat cmd (car this) " :rating=" (cadr this) ".00"
|
|
|
649 " :time=" (cddr this) "\r\n")
|
|
|
650 rate-alist (cdr rate-alist)))
|
|
|
651 (concat cmd ".\r\n")))
|
|
|
652
|
|
|
653 ;; Interactive rating functions.
|
|
|
654 (defun bbb-summary-rate-article (rating &optional midin)
|
|
|
655 (interactive "nRating: ")
|
|
|
656 (when (member gnus-newsgroup-name grouplens-newsgroups)
|
|
|
657 (let ((mid (or midin (bbb-get-current-id))))
|
|
|
658 (if (and rating
|
|
|
659 (>= rating grplens-minrating)
|
|
|
660 (<= rating grplens-maxrating)
|
|
|
661 mid)
|
|
|
662 (let ((oldrating (assoc mid grouplens-rating-alist)))
|
|
|
663 (if oldrating
|
|
|
664 (setcdr oldrating (cons rating 0))
|
|
|
665 (push `(,mid . (,rating . 0)) grouplens-rating-alist))
|
|
|
666 (gnus-summary-mark-article nil (int-to-string rating)))
|
|
|
667 (gnus-message 3 "Invalid rating")))))
|
|
|
668
|
|
|
669 (defun grouplens-next-unread-article (rating)
|
|
|
670 "Select unread article after current one."
|
|
|
671 (interactive "P")
|
|
|
672 (if rating (bbb-summary-rate-article rating))
|
|
|
673 (gnus-summary-next-unread-article))
|
|
|
674
|
|
|
675 (defun grouplens-best-unread-article (rating)
|
|
|
676 "Select unread article after current one."
|
|
|
677 (interactive "P")
|
|
|
678 (if rating (bbb-summary-rate-article rating))
|
|
|
679 (gnus-summary-best-unread-article))
|
|
|
680
|
|
|
681 (defun grouplens-summary-catchup-and-exit (rating)
|
|
|
682 "Mark all articles not marked as unread in this newsgroup as read,
|
|
|
683 then exit. If prefix argument ALL is non-nil, all articles are
|
|
|
684 marked as read."
|
|
|
685 (interactive "P")
|
|
|
686 (if rating
|
|
|
687 (bbb-summary-rate-article rating))
|
|
|
688 (if (numberp rating)
|
|
|
689 (gnus-summary-catchup-and-exit)
|
|
|
690 (gnus-summary-catchup-and-exit rating)))
|
|
|
691
|
|
|
692 (defun grouplens-score-thread (score)
|
|
|
693 "Raise the score of the articles in the current thread with SCORE."
|
|
|
694 (interactive "nRating: ")
|
|
|
695 (let (e)
|
|
|
696 (save-excursion
|
|
|
697 (let ((articles (gnus-summary-articles-in-thread)))
|
|
|
698 (while articles
|
|
|
699 (gnus-summary-goto-subject (car articles))
|
|
|
700 (gnus-set-global-variables)
|
|
|
701 (bbb-summary-rate-article score
|
|
|
702 (mail-header-id
|
|
|
703 (gnus-summary-article-header
|
|
|
704 (car articles))))
|
|
|
705 (setq articles (cdr articles))))
|
|
|
706 (setq e (point)))
|
|
|
707 (let ((gnus-summary-check-current t))
|
|
|
708 (or (zerop (gnus-summary-next-subject 1 t))
|
|
|
709 (goto-char e))))
|
|
|
710 (gnus-summary-recenter)
|
|
|
711 (gnus-summary-position-point)
|
|
|
712 (gnus-set-mode-line 'summary))
|
|
|
713
|
|
|
714
|
|
|
715 (defun bbb-get-current-id ()
|
|
|
716 (if gnus-current-headers
|
|
|
717 (aref gnus-current-headers
|
|
|
718 (nth 1 (assoc "message-id" gnus-header-index)))
|
|
|
719 (gnus-message 3 "You must select an article before you rate it")))
|
|
|
720
|
|
|
721 (defun bbb-grouplens-group-p (group)
|
|
|
722 "Say whether GROUP is a GroupLens group."
|
|
|
723 (if (member group grouplens-newsgroups) " (GroupLens Enhanced)" ""))
|
|
|
724
|
|
|
725 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
726 ;; TIME SPENT READING
|
|
|
727 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
728 (defvar grouplens-current-starting-time nil)
|
|
|
729
|
|
|
730 (defun grouplens-start-timer ()
|
|
|
731 (setq grouplens-current-starting-time (current-time)))
|
|
|
732
|
|
|
733 (defun grouplens-elapsed-time ()
|
|
|
734 (let ((et (bbb-time-float (current-time))))
|
|
|
735 (- et (bbb-time-float grouplens-current-starting-time))))
|
|
|
736
|
|
|
737 (defun bbb-time-float (timeval)
|
|
|
738 (+ (* (car timeval) 65536)
|
|
|
739 (cadr timeval)))
|
|
|
740
|
|
|
741 (defun grouplens-do-time ()
|
|
|
742 (when (member gnus-newsgroup-name grouplens-newsgroups)
|
|
|
743 (when grouplens-previous-article
|
|
|
744 (let ((elapsed-time (grouplens-elapsed-time))
|
|
|
745 (oldrating (assoc grouplens-previous-article
|
|
|
746 grouplens-rating-alist)))
|
|
|
747 (if (not oldrating)
|
|
|
748 (push `(,grouplens-previous-article . (0 . ,elapsed-time))
|
|
|
749 grouplens-rating-alist)
|
|
|
750 (setcdr oldrating (cons (cadr oldrating) elapsed-time)))))
|
|
|
751 (grouplens-start-timer)
|
|
|
752 (setq grouplens-previous-article (bbb-get-current-id))))
|
|
|
753
|
|
|
754 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
755 ;; BUG REPORTING
|
|
|
756 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
757
|
|
|
758 (defconst gnus-gl-version "gnus-gl.el 2.12")
|
|
|
759 (defconst gnus-gl-maintainer-address "grouplens-bug@cs.umn.edu")
|
|
|
760 (defun gnus-gl-submit-bug-report ()
|
|
|
761 "Submit via mail a bug report on gnus-gl"
|
|
|
762 (interactive)
|
|
|
763 (require 'reporter)
|
|
|
764 (reporter-submit-bug-report gnus-gl-maintainer-address
|
|
|
765 (concat "gnus-gl.el " gnus-gl-version)
|
|
|
766 (list 'grouplens-pseudonym
|
|
|
767 'grouplens-bbb-host
|
|
|
768 'grouplens-bbb-port
|
|
|
769 'grouplens-newsgroups
|
|
|
770 'grouplens-bbb-token
|
|
|
771 'grouplens-bbb-process
|
|
|
772 'grouplens-current-group
|
|
|
773 'grouplens-previous-article
|
|
|
774 'grouplens-mid-list
|
|
|
775 'bbb-alist)
|
|
|
776 nil
|
|
|
777 'gnus-gl-get-trace))
|
|
|
778
|
|
|
779 (defun gnus-gl-get-trace ()
|
|
|
780 "Insert the contents of the BBBD trace buffer"
|
|
|
781 (if grouplens-bbb-buffer (insert-buffer grouplens-bbb-buffer)))
|
|
|
782
|
|
|
783 ;;;
|
|
|
784 ;;; Additions to make gnus-grouplens-mode Warning Warning!!
|
|
|
785 ;;; This version of the gnus-grouplens-mode does
|
|
|
786 ;;; not work with gnus-5.x. The "old" way of
|
|
|
787 ;;; setting up GroupLens still works however.
|
|
|
788 ;;;
|
|
|
789 (defvar gnus-grouplens-mode nil
|
|
|
790 "Minor mode for providing a GroupLens interface in Gnus summary buffers.")
|
|
|
791
|
|
|
792 (defvar gnus-grouplens-mode-map nil)
|
|
|
793
|
|
|
794 (unless gnus-grouplens-mode-map
|
|
|
795 (setq gnus-grouplens-mode-map (make-keymap))
|
|
|
796 (gnus-define-keys
|
|
|
797 gnus-grouplens-mode-map
|
|
|
798 "n" grouplens-next-unread-article
|
|
|
799 "r" bbb-summary-rate-article
|
|
|
800 "k" grouplens-score-thread
|
|
|
801 "c" grouplens-summary-catchup-and-exit
|
|
|
802 "," grouplens-best-unread-article))
|
|
|
803
|
|
|
804 (defun gnus-grouplens-make-menu-bar ()
|
|
|
805 (unless (boundp 'gnus-grouplens-menu)
|
|
|
806 (easy-menu-define
|
|
|
807 gnus-grouplens-menu gnus-grouplens-mode-map ""
|
|
|
808 '("GroupLens"
|
|
|
809 ["Login" bbb-login t]
|
|
|
810 ["Rate" bbb-summary-rate-article t]
|
|
|
811 ["Next article" grouplens-next-unread-article t]
|
|
|
812 ["Best article" grouplens-best-unread-article t]
|
|
|
813 ["Raise thread" grouplens-score-thread t]
|
|
|
814 ["Report bugs" gnus-gl-submit-bug-report t]))))
|
|
|
815
|
|
|
816 (defun gnus-grouplens-mode (&optional arg)
|
|
|
817 "Minor mode for providing a GroupLens interface in Gnus summary buffers."
|
|
|
818 (interactive "P")
|
|
|
819 (when (and (eq major-mode 'gnus-summary-mode)
|
|
|
820 (member gnus-newsgroup-name grouplens-newsgroups))
|
|
|
821 (make-local-variable 'gnus-grouplens-mode)
|
|
|
822 (setq gnus-grouplens-mode
|
|
|
823 (if (null arg) (not gnus-grouplens-mode)
|
|
|
824 (> (prefix-numeric-value arg) 0)))
|
|
|
825 (when gnus-grouplens-mode
|
|
|
826 (if (not (fboundp 'make-local-hook))
|
|
|
827 (add-hook 'gnus-select-article-hook 'grouplens-do-time)
|
|
|
828 (make-local-hook 'gnus-select-article-hook)
|
|
|
829 (add-hook 'gnus-select-article-hook 'grouplens-do-time nil 'local))
|
|
|
830 (if (not (fboundp 'make-local-hook))
|
|
|
831 (add-hook 'gnus-exit-group-hook 'bbb-put-ratings)
|
|
|
832 (make-local-hook 'gnus-exit-group-hook)
|
|
|
833 (add-hook 'gnus-exit-group-hook 'bbb-put-ratings nil 'local))
|
|
|
834 (make-local-variable 'gnus-score-find-score-files-function)
|
|
|
835 (cond ((eq gnus-grouplens-override-scoring 'combine)
|
|
|
836 ;; either add bbb-buld-mid-scores-alist to a list
|
|
|
837 ;; or make a list
|
|
|
838 (if (listp gnus-score-find-score-files-function)
|
|
|
839 (setq gnus-score-find-score-files-function
|
|
|
840 (append 'bbb-build-mid-scores-alist
|
|
|
841 gnus-score-find-score-files-function ))
|
|
|
842 (setq gnus-score-find-score-files-function
|
|
|
843 (list gnus-score-find-score-files-function
|
|
|
844 'bbb-build-mid-scores-alist))))
|
|
|
845 ;; leave the gnus-score-find-score-files variable alone
|
|
|
846 ((eq gnus-grouplens-override-scoring 'separate)
|
|
|
847 (add-hook 'gnus-select-group-hook
|
|
|
848 '(lambda()
|
|
|
849 (bbb-build-mid-scores-alist gnus-newsgroup-name))))
|
|
|
850 ;; default is to override
|
|
|
851 (t (setq gnus-score-find-score-files-function
|
|
|
852 'bbb-build-mid-scores-alist)))
|
|
|
853 (make-local-variable 'gnus-summary-line-format)
|
|
|
854 (setq gnus-summary-line-format
|
|
|
855 gnus-summary-grouplens-line-format)
|
|
|
856 (make-local-variable 'gnus-summary-line-format-spec)
|
|
|
857 (setq gnus-summary-line-format-spec nil)
|
|
|
858
|
|
|
859 ;; Set up the menu.
|
|
|
860 (when (and menu-bar-mode
|
|
|
861 (gnus-visual-p 'grouplens-menu 'menu))
|
|
|
862 (gnus-grouplens-make-menu-bar))
|
|
|
863 (unless (assq 'gnus-grouplens-mode minor-mode-alist)
|
|
|
864 (push '(gnus-grouplens-mode " GroupLens") minor-mode-alist))
|
|
|
865 (unless (assq 'gnus-grouplens-mode minor-mode-map-alist)
|
|
|
866 (push (cons 'gnus-grouplens-mode gnus-grouplens-mode-map)
|
|
|
867 minor-mode-map-alist))
|
|
|
868 (run-hooks 'gnus-grouplens-mode-hook))))
|
|
|
869
|
|
|
870 (provide 'gnus-gl)
|
|
|
871
|
|
|
872 ;;; gnus-gl.el ends here
|
