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[Emacs-diffs] Changes to emacs/lisp/gnus/gnus-gl.el [lexbind]
From: |
Miles Bader |
Subject: |
[Emacs-diffs] Changes to emacs/lisp/gnus/gnus-gl.el [lexbind] |
Date: |
Tue, 14 Oct 2003 19:34:53 -0400 |
Index: emacs/lisp/gnus/gnus-gl.el
diff -c /dev/null emacs/lisp/gnus/gnus-gl.el:1.5.18.1
*** /dev/null Tue Oct 14 19:34:53 2003
--- emacs/lisp/gnus/gnus-gl.el Tue Oct 14 19:34:50 2003
***************
*** 0 ****
--- 1,860 ----
+ ;;; gnus-gl.el --- an interface to GroupLens for Gnus
+
+ ;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
+ ;; Free Software Foundation, Inc.
+
+ ;; Author: Brad Miller <address@hidden>
+ ;; Keywords: news, score
+
+ ;; This file is part of GNU Emacs.
+
+ ;; GNU Emacs is free software; you can redistribute it and/or modify
+ ;; it under the terms of the GNU General Public License as published by
+ ;; the Free Software Foundation; either version 2, or (at your option)
+ ;; any later version.
+
+ ;; GNU Emacs is distributed in the hope that it will be useful,
+ ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+ ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ ;; GNU General Public License for more details.
+
+ ;; You should have received a copy of the GNU General Public License
+ ;; along with GNU Emacs; see the file COPYING. If not, write to the
+ ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ ;; Boston, MA 02111-1307, USA.
+
+ ;;; Commentary:
+
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;; GroupLens software and documentation is copyright (c) 1995 by Paul
+ ;; Resnick (Massachusetts Institute of Technology); Brad Miller, John
+ ;; Riedl, Jon Herlocker, and Joseph Konstan (University of Minnesota),
+ ;; and David Maltz (Carnegie-Mellon University).
+ ;;
+ ;; Permission to use, copy, modify, and distribute this documentation
+ ;; for non-commercial and commercial purposes without fee is hereby
+ ;; granted provided that this copyright notice and permission notice
+ ;; appears in all copies and that the names of the individuals and
+ ;; institutions holding this copyright are not used in advertising or
+ ;; publicity pertaining to this software without specific, written
+ ;; prior permission. The copyright holders make no representations
+ ;; about the suitability of this software and documentation for any
+ ;; purpose. It is provided ``as is'' without express or implied
+ ;; warranty.
+ ;;
+ ;; The copyright holders request that they be notified of
+ ;; modifications of this code. Please send electronic mail to
+ ;; address@hidden for more information or to announce derived
+ ;; works.
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;; Author: Brad Miller
+ ;;
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;;
+ ;; User Documentation:
+ ;; To use GroupLens you must load this file.
+ ;; You must also register a pseudonym with the Better Bit Bureau.
+ ;; http://www.cs.umn.edu/Research/GroupLens
+ ;;
+ ;; ---------------- For your .emacs or .gnus file ----------------
+ ;;
+ ;; As of version 2.5, grouplens now works as a minor mode of
+ ;; gnus-summary-mode. To get make that work you just need a couple of
+ ;; hooks.
+ ;; (setq gnus-use-grouplens t)
+ ;; (setq grouplens-pseudonym "")
+ ;; (setq grouplens-bbb-host "grouplens.cs.umn.edu")
+ ;;
+ ;; (setq gnus-summary-default-score 0)
+ ;;
+ ;; USING GROUPLENS
+ ;; How do I Rate an article??
+ ;; Before you type n to go to the next article, hit a number from 1-5
+ ;; Type r in the summary buffer and you will be prompted.
+ ;; Note that when you're in grouplens-minor-mode 'r' masks the
+ ;; usual reply binding for 'r'
+ ;;
+ ;; What if, Gasp, I find a bug???
+ ;; Please type M-x gnus-gl-submit-bug-report. This will set up a
+ ;; mail buffer with the state of variables and buffers that will help
+ ;; me debug the problem. A short description up front would help too!
+ ;;
+ ;; How do I display the prediction for an article:
+ ;; If you set the gnus-summary-line-format as shown above, the score
+ ;; (prediction) will be shown automatically.
+ ;;
+ ;;
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;; Programmer Notes
+ ;; 10/9/95
+ ;; gnus-scores-articles contains the articles
+ ;; When scoring is done, the call tree looks something like:
+ ;; gnus-possibly-score-headers
+ ;; ==> gnus-score-headers
+ ;; ==> gnus-score-load-file
+ ;; ==> get-all-mids (from the eval form)
+ ;;
+ ;; it would be nice to have one that gets called after all the other
+ ;; headers have been scored.
+ ;; we may want a variable gnus-grouplens-scale-factor
+ ;; and gnus-grouplens-offset this would probably be either -3 or 0
+ ;; to make the scores centered around zero or not.
+ ;; Notes 10/12/95
+ ;; According to Lars, Norse god of gnus, the simple way to insert a
+ ;; call to an external function is to have a function added to the
+ ;; variable gnus-score-find-files-function This new function
+ ;; gnus-grouplens-score-alist will return a core alist that
+ ;; has (("message-id" ("<message-id-xxxx>" score) ("<message-id-xxxy>" score))
+ ;; This seems like it would be pretty inefficient, though workable.
+ ;;
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;; TODO
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;;
+ ;; 3. Add some more ways to rate messages
+ ;; 4. Better error handling for token timeouts.
+ ;;
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;; bugs
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;;
+
+ ;;; Code:
+
+ (eval-when-compile (require 'cl))
+
+ (require 'gnus-score)
+ (require 'gnus)
+
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;;;; User variables
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+ (defvar gnus-summary-grouplens-line-format
+ "%U\%R\%z%l%I\%(%[%4L: %-20,20n%]%) %s\n"
+ "*The line format spec in summary GroupLens mode buffers.")
+
+ (defvar grouplens-pseudonym ""
+ "User's pseudonym.
+ This pseudonym is obtained during the registration process")
+
+ (defvar grouplens-bbb-host "grouplens.cs.umn.edu"
+ "Host where the bbbd is running.")
+
+ (defvar grouplens-bbb-port 9000
+ "Port where the bbbd is listening.")
+
+ (defvar grouplens-newsgroups
+ '("comp.groupware" "comp.human-factors" "comp.lang.c++"
+ "comp.lang.java" "comp.os.linux.admin" "comp.os.linux.advocacy"
+ "comp.os.linux.announce" "comp.os.linux.answers"
+ "comp.os.linux.development" "comp.os.linux.development.apps"
+ "comp.os.linux.development.system" "comp.os.linux.hardware"
+ "comp.os.linux.help" "comp.os.linux.m68k" "comp.os.linux.misc"
+ "comp.os.linux.networking" "comp.os.linux.setup" "comp.os.linux.x"
+ "mn.general" "rec.arts.movies" "rec.arts.movies.current-films"
+ "rec.food.recipes" "rec.humor")
+ "*Groups that are part of the GroupLens experiment.")
+
+ (defvar grouplens-prediction-display 'prediction-spot
+ "valid values are:
+ prediction-spot -- an * corresponding to the prediction between 1 and 5,
+ confidence-interval -- a numeric confidence interval
+ prediction-bar -- |##### | the longer the bar, the better the
article,
+ confidence-bar -- | ----- } the prediction is in the middle of the
bar,
+ confidence-spot -- ) * | the spot gets bigger with more
confidence,
+ prediction-num -- plain-old numeric value,
+ confidence-plus-minus -- prediction +/i confidence")
+
+ (defvar grouplens-score-offset 0
+ "Offset the prediction by this value.
+ Setting this variable to -2 would have the following effect on
+ GroupLens scores:
+
+ 1 --> -2
+ 2 --> -1
+ 3 --> 0
+ 4 --> 1
+ 5 --> 2
+
+ The reason is that a user might want to do this is to combine
+ GroupLens predictions with scores calculated by other score methods.")
+
+ (defvar grouplens-score-scale-factor 1
+ "This variable allows the user to magnify the effect of GroupLens scores.
+ The scale factor is applied after the offset.")
+
+ (defvar gnus-grouplens-override-scoring 'override
+ "Tell GroupLens to override the normal Gnus scoring mechanism.
+ GroupLens scores can be combined with gnus scores in one of three ways.
+ 'override -- just use grouplens predictions for grouplens groups
+ 'combine -- combine grouplens scores with gnus scores
+ 'separate -- treat grouplens scores completely separate from gnus")
+
+
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;;;; Program global variables
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ (defvar grouplens-bbb-token nil
+ "Current session token number.")
+
+ (defvar grouplens-bbb-process nil
+ "Process Id of current bbbd network stream process.")
+
+ (defvar grouplens-bbb-buffer nil
+ "Buffer associated with the BBBD process.")
+
+ (defvar grouplens-rating-alist nil
+ "Current set of message-id rating pairs.")
+
+ (defvar grouplens-current-hashtable nil
+ "A hashtable to hold predictions from the BBB.")
+
+ (defvar grouplens-current-group nil)
+
+ ;;(defvar bbb-alist nil)
+
+ (defvar bbb-timeout-secs 10
+ "Number of seconds to wait for some response from the BBB.
+ If this times out we give up and assume that something has died..." )
+
+ (defvar grouplens-previous-article nil
+ "Message-ID of the last article read.")
+
+ (defvar bbb-read-point)
+ (defvar bbb-response-point)
+
+ (defun bbb-renew-hash-table ()
+ (setq grouplens-current-hashtable (make-vector 100 0)))
+
+ (bbb-renew-hash-table)
+
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;;;; Utility Functions
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+ (defun bbb-connect-to-bbbd (host port)
+ (unless grouplens-bbb-buffer
+ (setq grouplens-bbb-buffer
+ (gnus-get-buffer-create (format " *BBBD trace: %s*" host)))
+ (save-excursion
+ (set-buffer grouplens-bbb-buffer)
+ (make-local-variable 'bbb-read-point)
+ (make-local-variable 'bbb-response-point)
+ (setq bbb-read-point (point-min))))
+
+ ;; if an old process is still running for some reason, kill it
+ (when grouplens-bbb-process
+ (ignore-errors
+ (when (eq 'open (process-status grouplens-bbb-process))
+ (set-process-buffer grouplens-bbb-process nil)
+ (delete-process grouplens-bbb-process))))
+
+ ;; clear the trace buffer of old output
+ (save-excursion
+ (set-buffer grouplens-bbb-buffer)
+ (erase-buffer))
+
+ ;; open the connection to the server
+ (catch 'done
+ (condition-case error
+ (setq grouplens-bbb-process
+ (open-network-stream "BBBD" grouplens-bbb-buffer host port))
+ (error (gnus-message 3 "Error: Failed to connect to BBB")
+ nil))
+ (and (null grouplens-bbb-process)
+ (throw 'done nil))
+ (save-excursion
+ (set-buffer grouplens-bbb-buffer)
+ (setq bbb-read-point (point-min))
+ (or (bbb-read-response grouplens-bbb-process)
+ (throw 'done nil))))
+
+ ;; return the process
+ grouplens-bbb-process)
+
+ (defun bbb-send-command (process command)
+ (goto-char (point-max))
+ (insert command)
+ (insert "\r\n")
+ (setq bbb-read-point (point))
+ (setq bbb-response-point (point))
+ (set-marker (process-mark process) (point)) ; process output also comes here
+ (process-send-string process command)
+ (process-send-string process "\r\n")
+ (process-send-eof process))
+
+ (defun bbb-read-response (process)
+ "This function eats the initial response of OK or ERROR from the BBB."
+ (let ((case-fold-search nil)
+ match-end)
+ (goto-char bbb-read-point)
+ (while (and (not (search-forward "\r\n" nil t))
+ (accept-process-output process bbb-timeout-secs))
+ (goto-char bbb-read-point))
+ (setq match-end (point))
+ (goto-char bbb-read-point)
+ (setq bbb-read-point match-end)
+ (looking-at "OK")))
+
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;;;; Login Functions
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ (defun bbb-login ()
+ "return the token number if login is successful, otherwise return nil."
+ (interactive)
+ (setq grouplens-bbb-token nil)
+ (if (not (equal grouplens-pseudonym ""))
+ (let ((bbb-process
+ (bbb-connect-to-bbbd grouplens-bbb-host grouplens-bbb-port)))
+ (if bbb-process
+ (save-excursion
+ (set-buffer (process-buffer bbb-process))
+ (bbb-send-command bbb-process
+ (concat "login " grouplens-pseudonym))
+ (if (bbb-read-response bbb-process)
+ (setq grouplens-bbb-token (bbb-extract-token-number))
+ (gnus-message 3 "Error: GroupLens login failed")))))
+ (gnus-message 3 "Error: you must set a pseudonym"))
+ grouplens-bbb-token)
+
+ (defun bbb-extract-token-number ()
+ (let ((token-pos (search-forward "token=" nil t)))
+ (when (looking-at "[0-9]+")
+ (buffer-substring token-pos (match-end 0)))))
+
+ (gnus-add-shutdown 'bbb-logout 'gnus)
+
+ (defun bbb-logout ()
+ "logout of bbb session."
+ (when grouplens-bbb-token
+ (let ((bbb-process
+ (bbb-connect-to-bbbd grouplens-bbb-host grouplens-bbb-port)))
+ (when bbb-process
+ (save-excursion
+ (set-buffer (process-buffer bbb-process))
+ (bbb-send-command bbb-process (concat "logout " grouplens-bbb-token))
+ (bbb-read-response bbb-process))))))
+
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;;;; Get Predictions
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+ (defun bbb-build-mid-scores-alist (groupname)
+ "this function can be called as part of the function to return the list of
score files to use.
+ See the gnus variable gnus-score-find-score-files-function.
+
+ *Note:* If you want to use grouplens scores along with calculated scores,
+ you should see the offset and scale variables. At this point, I don't
+ recommend using both scores and grouplens predictions together."
+ (setq grouplens-current-group groupname)
+ (when (member groupname grouplens-newsgroups)
+ (setq grouplens-previous-article nil)
+ ;; scores-alist should be a list of lists:
+ ;; ((("message-id" ("<mid1>" score1 nil s) ("<mid2> score2 nil s))))
+ ;;`((("message-id" . ,predict-list))) ; Yes, this is the return value
+ (list
+ (list
+ (list (append (list "message-id")
+ (bbb-get-predictions (bbb-get-all-mids) groupname)))))))
+
+ (defun bbb-get-predictions (midlist groupname)
+ "Ask the bbb for predictions, and build up the score alist."
+ (gnus-message 5 "Fetching Predictions...")
+ (if grouplens-bbb-token
+ (let ((bbb-process (bbb-connect-to-bbbd grouplens-bbb-host
+ grouplens-bbb-port)))
+ (when bbb-process
+ (save-excursion
+ (set-buffer (process-buffer bbb-process))
+ (bbb-send-command bbb-process
+ (bbb-build-predict-command midlist groupname
+ grouplens-bbb-token))
+ (if (bbb-read-response bbb-process)
+ (bbb-get-prediction-response bbb-process)
+ (gnus-message 1 "Invalid Token, login and try again")
+ (ding)))))
+ (gnus-message 3 "Error: You are not logged in to a BBB")
+ (ding)))
+
+ (defun bbb-get-all-mids ()
+ (mapcar (function (lambda (x) (mail-header-id x))) gnus-newsgroup-headers))
+
+ (defun bbb-build-predict-command (mlist grpname token)
+ (concat "getpredictions " token " " grpname "\r\n"
+ (mapconcat 'identity mlist "\r\n") "\r\n.\r\n"))
+
+ (defun bbb-get-prediction-response (process)
+ (let ((case-fold-search nil))
+ (goto-char bbb-read-point)
+ (while (and (not (search-forward ".\r\n" nil t))
+ (accept-process-output process bbb-timeout-secs))
+ (goto-char bbb-read-point))
+ (goto-char (+ bbb-response-point 4));; we ought to be right before OK
+ (bbb-build-response-alist)))
+
+ ;; build-response-alist assumes that the cursor has been positioned at
+ ;; the first line of the list of mid/rating pairs.
+ (defun bbb-build-response-alist ()
+ (let (resp mid pred)
+ (while
+ (cond
+ ((looking-at "\\(<.*>\\) :nopred=")
+ ;;(push `(,(bbb-get-mid) ,gnus-summary-default-score nil s) resp)
+ (forward-line 1)
+ t)
+ ((looking-at "\\(<.*>\\) :pred=\\([0-9]\.[0-9][0-9]\\)
:conflow=\\([0-9]\.[0-9][0-9]\\) :confhigh=\\([0-9]\.[0-9][0-9]\\)")
+ (setq mid (bbb-get-mid)
+ pred (bbb-get-pred))
+ (push `(,mid ,pred nil s) resp)
+ (gnus-sethash mid (list pred (bbb-get-confl) (bbb-get-confh))
+ grouplens-current-hashtable)
+ (forward-line 1)
+ t)
+ ((looking-at "\\(<.*>\\) :pred=\\([0-9]\.[0-9][0-9]\\)")
+ (setq mid (bbb-get-mid)
+ pred (bbb-get-pred))
+ (push `(,mid ,pred nil s) resp)
+ (gnus-sethash mid (list pred 0 0) grouplens-current-hashtable)
+ (forward-line 1)
+ t)
+ (t nil)))
+ resp))
+
+ ;; these "get" functions assume that there is an active match lying
+ ;; around. Where the first parenthesized expression is the
+ ;; message-id, and the second is the prediction, the third and fourth
+ ;; are the confidence interval
+ ;;
+ ;; Since gnus assumes that scores are integer values?? we round the
+ ;; prediction.
+ (defun bbb-get-mid ()
+ (buffer-substring (match-beginning 1) (match-end 1)))
+
+ (defun bbb-get-pred ()
+ (let ((tpred (string-to-number (buffer-substring (match-beginning 2)
+ (match-end 2)))))
+ (if (> tpred 0)
+ (round (* grouplens-score-scale-factor
+ (+ grouplens-score-offset tpred)))
+ 1)))
+
+ (defun bbb-get-confl ()
+ (string-to-number (buffer-substring (match-beginning 4) (match-end 4))))
+
+ (defun bbb-get-confh ()
+ (string-to-number (buffer-substring (match-beginning 4) (match-end 4))))
+
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;;;; Prediction Display
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ (defconst grplens-rating-range 4.0)
+ (defconst grplens-maxrating 5)
+ (defconst grplens-minrating 1)
+ (defconst grplens-predstringsize 12)
+
+ (defvar gnus-tmp-score)
+ (defun bbb-grouplens-score (header)
+ (if (eq gnus-grouplens-override-scoring 'separate)
+ (bbb-grouplens-other-score header)
+ (let* ((rate-string (make-string 12 ?\ ))
+ (mid (mail-header-id header))
+ (hashent (gnus-gethash mid grouplens-current-hashtable))
+ (iscore gnus-tmp-score)
+ (low (car (cdr hashent)))
+ (high (car (cdr (cdr hashent)))))
+ (aset rate-string 0 ?|)
+ (aset rate-string 11 ?|)
+ (unless (member grouplens-current-group grouplens-newsgroups)
+ (unless (equal grouplens-prediction-display 'prediction-num)
+ (cond ((< iscore 0)
+ (setq iscore 1))
+ ((> iscore 5)
+ (setq iscore 5))))
+ (setq low 0)
+ (setq high 0))
+ (if (and (bbb-valid-score iscore)
+ (not (null mid)))
+ (cond
+ ;; prediction-spot
+ ((equal grouplens-prediction-display 'prediction-spot)
+ (setq rate-string (bbb-fmt-prediction-spot rate-string iscore)))
+ ;; confidence-interval
+ ((equal grouplens-prediction-display 'confidence-interval)
+ (setq rate-string (bbb-fmt-confidence-interval iscore low high)))
+ ;; prediction-bar
+ ((equal grouplens-prediction-display 'prediction-bar)
+ (setq rate-string (bbb-fmt-prediction-bar rate-string iscore)))
+ ;; confidence-bar
+ ((equal grouplens-prediction-display 'confidence-bar)
+ (setq rate-string (format "| %4.2f |" iscore)))
+ ;; confidence-spot
+ ((equal grouplens-prediction-display 'confidence-spot)
+ (setq rate-string (format "| %4.2f |" iscore)))
+ ;; prediction-num
+ ((equal grouplens-prediction-display 'prediction-num)
+ (setq rate-string (bbb-fmt-prediction-num iscore)))
+ ;; confidence-plus-minus
+ ((equal grouplens-prediction-display 'confidence-plus-minus)
+ (setq rate-string (bbb-fmt-confidence-plus-minus iscore low high))
+ )
+ (t (gnus-message 3 "Invalid prediction display type")))
+ (aset rate-string 5 ?N) (aset rate-string 6 ?A))
+ rate-string)))
+
+ ;; Gnus user format function that doesn't depend on
+ ;; bbb-build-mid-scores-alist being used as the score function, but is
+ ;; instead called from gnus-select-group-hook. -- LAB
+ (defun bbb-grouplens-other-score (header)
+ (if (not (member grouplens-current-group grouplens-newsgroups))
+ ;; Return an empty string
+ ""
+ (let* ((rate-string (make-string 12 ?\ ))
+ (mid (mail-header-id header))
+ (hashent (gnus-gethash mid grouplens-current-hashtable))
+ (pred (or (nth 0 hashent) 0))
+ (low (nth 1 hashent))
+ (high (nth 2 hashent)))
+ ;; Init rate-string
+ (aset rate-string 0 ?|)
+ (aset rate-string 11 ?|)
+ (unless (equal grouplens-prediction-display 'prediction-num)
+ (cond ((< pred 0)
+ (setq pred 1))
+ ((> pred 5)
+ (setq pred 5))))
+ ;; If no entry in BBB hash mark rate string as NA and return
+ (cond
+ ((null hashent)
+ (aset rate-string 5 ?N)
+ (aset rate-string 6 ?A)
+ rate-string)
+
+ ((equal grouplens-prediction-display 'prediction-spot)
+ (bbb-fmt-prediction-spot rate-string pred))
+
+ ((equal grouplens-prediction-display 'confidence-interval)
+ (bbb-fmt-confidence-interval pred low high))
+
+ ((equal grouplens-prediction-display 'prediction-bar)
+ (bbb-fmt-prediction-bar rate-string pred))
+
+ ((equal grouplens-prediction-display 'confidence-bar)
+ (format "| %4.2f |" pred))
+
+ ((equal grouplens-prediction-display 'confidence-spot)
+ (format "| %4.2f |" pred))
+
+ ((equal grouplens-prediction-display 'prediction-num)
+ (bbb-fmt-prediction-num pred))
+
+ ((equal grouplens-prediction-display 'confidence-plus-minus)
+ (bbb-fmt-confidence-plus-minus pred low high))
+
+ (t
+ (gnus-message 3 "Invalid prediction display type")
+ (aset rate-string 0 ?|)
+ (aset rate-string 11 ?|)
+ rate-string)))))
+
+ (defun bbb-valid-score (score)
+ (or (equal grouplens-prediction-display 'prediction-num)
+ (and (>= score grplens-minrating)
+ (<= score grplens-maxrating))))
+
+ (defun bbb-requires-confidence (format-type)
+ (or (equal format-type 'confidence-plus-minus)
+ (equal format-type 'confidence-spot)
+ (equal format-type 'confidence-interval)))
+
+ (defun bbb-have-confidence (clow chigh)
+ (not (or (null clow)
+ (null chigh))))
+
+ (defun bbb-fmt-prediction-spot (rate-string score)
+ (aset rate-string
+ (round (* (/ (- score grplens-minrating) grplens-rating-range)
+ (+ (- grplens-predstringsize 4) 1.49)))
+ ?*)
+ rate-string)
+
+ (defun bbb-fmt-confidence-interval (score low high)
+ (if (bbb-have-confidence low high)
+ (format "|%4.2f-%4.2f |" low high)
+ (bbb-fmt-prediction-num score)))
+
+ (defun bbb-fmt-confidence-plus-minus (score low high)
+ (if (bbb-have-confidence low high)
+ (format "|%3.1f+/-%4.2f|" score (/ (- high low) 2.0))
+ (bbb-fmt-prediction-num score)))
+
+ (defun bbb-fmt-prediction-bar (rate-string score)
+ (let* ((i 1)
+ (step (/ grplens-rating-range (- grplens-predstringsize 4)))
+ (half-step (/ step 2))
+ (loc (- grplens-minrating half-step)))
+ (while (< i (- grplens-predstringsize 2))
+ (if (> score loc)
+ (aset rate-string i ?#)
+ (aset rate-string i ?\ ))
+ (setq i (+ i 1))
+ (setq loc (+ loc step)))
+ )
+ rate-string)
+
+ (defun bbb-fmt-prediction-num (score)
+ (format "| %4.2f |" score))
+
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;;;; Put Ratings
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+ (defun bbb-put-ratings ()
+ (if (and grouplens-bbb-token
+ grouplens-rating-alist
+ (member gnus-newsgroup-name grouplens-newsgroups))
+ (let ((bbb-process (bbb-connect-to-bbbd grouplens-bbb-host
+ grouplens-bbb-port))
+ (rate-command (bbb-build-rate-command grouplens-rating-alist)))
+ (if bbb-process
+ (save-excursion
+ (set-buffer (process-buffer bbb-process))
+ (gnus-message 5 "Sending Ratings...")
+ (bbb-send-command bbb-process rate-command)
+ (if (bbb-read-response bbb-process)
+ (setq grouplens-rating-alist nil)
+ (gnus-message 1
+ "Token timed out: call bbb-login and quit again")
+ (ding))
+ (gnus-message 5 "Sending Ratings...Done"))
+ (gnus-message 3 "No BBB connection")))
+ (setq grouplens-rating-alist nil)))
+
+ (defun bbb-build-rate-command (rate-alist)
+ (concat "putratings " grouplens-bbb-token " " grouplens-current-group "
\r\n"
+ (mapconcat '(lambda (this) ; form (mid . (score . time))
+ (concat (car this)
+ " :rating=" (cadr this) ".00"
+ " :time=" (cddr this)))
+ rate-alist "\r\n")
+ "\r\n.\r\n"))
+
+ ;; Interactive rating functions.
+ (defun bbb-summary-rate-article (rating &optional midin)
+ (interactive "nRating: ")
+ (when (member gnus-newsgroup-name grouplens-newsgroups)
+ (let ((mid (or midin (bbb-get-current-id))))
+ (if (and rating
+ (>= rating grplens-minrating)
+ (<= rating grplens-maxrating)
+ mid)
+ (let ((oldrating (assoc mid grouplens-rating-alist)))
+ (if oldrating
+ (setcdr oldrating (cons rating 0))
+ (push `(,mid . (,rating . 0)) grouplens-rating-alist))
+ (gnus-summary-mark-article nil (int-to-string rating)))
+ (gnus-message 3 "Invalid rating")))))
+
+ (defun grouplens-next-unread-article (rating)
+ "Select unread article after current one."
+ (interactive "P")
+ (when rating
+ (bbb-summary-rate-article rating))
+ (gnus-summary-next-unread-article))
+
+ (defun grouplens-best-unread-article (rating)
+ "Select unread article after current one."
+ (interactive "P")
+ (when rating
+ (bbb-summary-rate-article rating))
+ (gnus-summary-best-unread-article))
+
+ (defun grouplens-summary-catchup-and-exit (rating)
+ "Mark all articles not marked as unread in this newsgroup as read, then
exit.
+ If prefix argument ALL is non-nil, all articles are marked as read."
+ (interactive "P")
+ (when rating
+ (bbb-summary-rate-article rating))
+ (if (numberp rating)
+ (gnus-summary-catchup-and-exit)
+ (gnus-summary-catchup-and-exit rating)))
+
+ (defun grouplens-score-thread (score)
+ "Raise the score of the articles in the current thread with SCORE."
+ (interactive "nRating: ")
+ (let (e)
+ (save-excursion
+ (let ((articles (gnus-summary-articles-in-thread))
+ article)
+ (while (setq article (pop articles))
+ (gnus-summary-goto-subject article)
+ (bbb-summary-rate-article score
+ (mail-header-id
+ (gnus-summary-article-header article)))))
+ (setq e (point)))
+ (let ((gnus-summary-check-current t))
+ (or (zerop (gnus-summary-next-subject 1 t))
+ (goto-char e))))
+ (gnus-summary-recenter)
+ (gnus-summary-position-point)
+ (gnus-set-mode-line 'summary))
+
+ (defun bbb-exit-group ()
+ (bbb-put-ratings)
+ (bbb-renew-hash-table))
+
+ (defun bbb-get-current-id ()
+ (if gnus-current-headers
+ (mail-header-id gnus-current-headers)
+ (gnus-message 3 "You must select an article before you rate it")))
+
+ (defun bbb-grouplens-group-p (group)
+ "Say whether GROUP is a GroupLens group."
+ (if (member group grouplens-newsgroups) " (GroupLens Enhanced)" ""))
+
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;; TIME SPENT READING
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ (defvar grouplens-current-starting-time nil)
+
+ (defun grouplens-start-timer ()
+ (setq grouplens-current-starting-time (current-time)))
+
+ (defun grouplens-elapsed-time ()
+ (let ((et (bbb-time-float (current-time))))
+ (- et (bbb-time-float grouplens-current-starting-time))))
+
+ (defun bbb-time-float (timeval)
+ (+ (* (car timeval) 65536)
+ (cadr timeval)))
+
+ (defun grouplens-do-time ()
+ (when (member gnus-newsgroup-name grouplens-newsgroups)
+ (when grouplens-previous-article
+ (let ((elapsed-time (grouplens-elapsed-time))
+ (oldrating (assoc grouplens-previous-article
+ grouplens-rating-alist)))
+ (if (not oldrating)
+ (push `(,grouplens-previous-article . (0 . ,elapsed-time))
+ grouplens-rating-alist)
+ (setcdr oldrating (cons (cadr oldrating) elapsed-time)))))
+ (grouplens-start-timer)
+ (setq grouplens-previous-article (bbb-get-current-id))))
+
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+ ;; BUG REPORTING
+ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+ (defconst gnus-gl-version "gnus-gl.el 2.50")
+ (defconst gnus-gl-maintainer-address "address@hidden")
+ (defun gnus-gl-submit-bug-report ()
+ "Submit via mail a bug report on gnus-gl."
+ (interactive)
+ (require 'reporter)
+ (reporter-submit-bug-report gnus-gl-maintainer-address
+ (concat "gnus-gl.el " gnus-gl-version)
+ (list 'grouplens-pseudonym
+ 'grouplens-bbb-host
+ 'grouplens-bbb-port
+ 'grouplens-newsgroups
+ 'grouplens-bbb-token
+ 'grouplens-bbb-process
+ 'grouplens-current-group
+ 'grouplens-previous-article)
+ nil
+ 'gnus-gl-get-trace))
+
+ (defun gnus-gl-get-trace ()
+ "Insert the contents of the BBBD trace buffer."
+ (when grouplens-bbb-buffer
+ (insert-buffer-substring grouplens-bbb-buffer)))
+
+ ;;
+ ;; GroupLens minor mode
+ ;;
+
+ (defvar gnus-grouplens-mode nil
+ "Minor mode for providing a GroupLens interface in Gnus summary buffers.")
+
+ (defvar gnus-grouplens-mode-map nil)
+
+ (unless gnus-grouplens-mode-map
+ (setq gnus-grouplens-mode-map (make-keymap))
+ (gnus-define-keys
+ gnus-grouplens-mode-map
+ "n" grouplens-next-unread-article
+ "r" bbb-summary-rate-article
+ "k" grouplens-score-thread
+ "c" grouplens-summary-catchup-and-exit
+ "," grouplens-best-unread-article))
+
+ (defun gnus-grouplens-make-menu-bar ()
+ (unless (boundp 'gnus-grouplens-menu)
+ (easy-menu-define
+ gnus-grouplens-menu gnus-grouplens-mode-map ""
+ '("GroupLens"
+ ["Login" bbb-login t]
+ ["Rate" bbb-summary-rate-article t]
+ ["Next article" grouplens-next-unread-article t]
+ ["Best article" grouplens-best-unread-article t]
+ ["Raise thread" grouplens-score-thread t]
+ ["Report bugs" gnus-gl-submit-bug-report t]))))
+
+ (defun gnus-grouplens-mode (&optional arg)
+ "Minor mode for providing a GroupLens interface in Gnus summary buffers."
+ (interactive "P")
+ (when (and (eq major-mode 'gnus-summary-mode)
+ (member gnus-newsgroup-name grouplens-newsgroups))
+ (make-local-variable 'gnus-grouplens-mode)
+ (setq gnus-grouplens-mode
+ (if (null arg) (not gnus-grouplens-mode)
+ (> (prefix-numeric-value arg) 0)))
+ (when gnus-grouplens-mode
+ (make-local-hook 'gnus-select-article-hook)
+ (add-hook 'gnus-select-article-hook 'grouplens-do-time nil 'local)
+ (make-local-hook 'gnus-exit-group-hook)
+ (add-hook 'gnus-exit-group-hook 'bbb-exit-group nil 'local)
+ (make-local-variable 'gnus-score-find-score-files-function)
+
+ (cond
+ ((eq gnus-grouplens-override-scoring 'combine)
+ ;; either add bbb-buld-mid-scores-alist to a list
+ ;; or make a list
+ (if (listp gnus-score-find-score-files-function)
+ (setq gnus-score-find-score-files-function
+ (append 'bbb-build-mid-scores-alist
+ gnus-score-find-score-files-function))
+ (setq gnus-score-find-score-files-function
+ (list gnus-score-find-score-files-function
+ 'bbb-build-mid-scores-alist))))
+ ;; leave the gnus-score-find-score-files variable alone
+ ((eq gnus-grouplens-override-scoring 'separate)
+ (add-hook 'gnus-select-group-hook
+ (lambda ()
+ (bbb-get-predictions (bbb-get-all-mids)
+ gnus-newsgroup-name))))
+ ;; default is to override
+ (t
+ (setq gnus-score-find-score-files-function
+ 'bbb-build-mid-scores-alist)))
+
+ ;; Change how summary lines look
+ (make-local-variable 'gnus-summary-line-format)
+ (make-local-variable 'gnus-summary-line-format-spec)
+ (setq gnus-summary-line-format gnus-summary-grouplens-line-format)
+ (setq gnus-summary-line-format-spec nil)
+ (gnus-update-format-specifications nil 'summary)
+ (gnus-update-summary-mark-positions)
+
+ ;; Set up the menu.
+ (when (and menu-bar-mode
+ (gnus-visual-p 'grouplens-menu 'menu))
+ (gnus-grouplens-make-menu-bar))
+ (gnus-add-minor-mode
+ 'gnus-grouplens-mode " GroupLens" gnus-grouplens-mode-map)
+ (gnus-run-hooks 'gnus-grouplens-mode-hook))))
+
+ (provide 'gnus-gl)
+
+ ;;; arch-tag: 6f1bab2c-c2a3-4764-9ef6-0714cd5902a4
+ ;;; gnus-gl.el ends here
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