+++ /dev/null
-;;; gnus-gl.el --- an interface to GroupLens for Gnus
-
-;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
-;; Free Software Foundation, Inc.
-
-;; Author: Brad Miller <bmiller@cs.umn.edu>
-;; 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
-;; grouplens@cs.umn.edu 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: %-23,23n%]%) %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 "grouplens-bug@cs.umn.edu")
-(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
- (gnus-make-local-hook 'gnus-select-article-hook)
- (add-hook 'gnus-select-article-hook 'grouplens-do-time nil 'local)
- (gnus-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))
- (add-minor-mode
- 'gnus-grouplens-mode " GroupLens" gnus-grouplens-mode-map)
- (gnus-run-hooks 'gnus-grouplens-mode-hook))))
-
-(provide 'gnus-gl)
-
-;;; gnus-gl.el ends here
projects / gnus / commitdiff