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;;;; $Id: specbot.lisp 211 2008-06-30 21:29:32Z ehuelsmann $
;;;; $Source$
;;;; specbot.lisp - an example IRC bot for cl-irc
;;; specbot is an example IRC bot for cl-irc. It runs on
;;; irc.freenode.net in the channels #lisp, #scheme and #clhs
;;; (preferred for testing). It responds to queries of its various
;;; databases, which right now include "clhs" and "r5rs".
;;; You will need to load and populate the tables for both the clhs
;;; and r5rs lookup packages; currently these are available in
;;; lisppaste CVS.
;;; To use it, load the cl-irc system, load specbot.lisp, and
;;; invoke (specbot:start-specbot "desirednickname" "desiredserver"
;;; "#channel1" "#channel2" "#channel3" ...)
(defpackage :specbot (:use :common-lisp :irc) (:export :start-specbot
:shut-up
:un-shut-up))
(in-package :specbot)
(defvar *connection*)
(defvar *nickname* "")
(defun shut-up ()
(setf (irc:client-stream *connection*) (make-broadcast-stream)))
(defun un-shut-up ()
(setf (irc:client-stream *connection*) *trace-output*))
(defmacro aif (test conseq &optional (else nil))
`(let ((it ,test))
(if it ,conseq
(symbol-macrolet ((it ,test))
,else))))
(defun clhs-lookup (str)
(and (find-package :clhs-lookup)
(funcall (intern "SPEC-LOOKUP" :clhs-lookup)
str)))
(defun r5rs-lookup (str)
(and (find-package :r5rs-lookup)
(funcall (intern "SYMBOL-LOOKUP" :r5rs-lookup)
str)))
(defun cocoa-lookup (str)
(and (find-package :cocoa-lookup)
(funcall (intern "SYMBOL-LOOKUP" :cocoa-lookup)
str)))
(defun elisp-lookup (str)
(and (find-package :elisp-lookup)
(funcall (intern "SYMBOL-LOOKUP" :elisp-lookup)
str)))
(defun clim-lookup (str)
(and (find-package :clim-lookup)
(funcall (intern "TERM-LOOKUP" :clim-lookup)
str)))
(defvar *spec-providers*
'((clhs-lookup "clhs" "The Common Lisp HyperSpec")
(r5rs-lookup "r5rs" "The Revised 5th Ed. Report on the Algorithmic Language Scheme")
(cocoa-lookup "cocoa" "Classes in the Cocoa Foundation and Application kits")
(elisp-lookup "elisp" "GNU Emacs Lisp Reference Manual")
(clim-lookup "clim" "Common Lisp Interface Manager II Specification")))
(defvar *spaces-allowed*
'(clim-lookup))
(defvar *alists* nil)
(defun add-simple-alist-lookup (file designator prefix description)
(unless (assoc designator *alists*)
(let ((alist (with-open-file (s file :direction :input) (read s))))
(push (cons designator alist) *alists*)
(setf *spec-providers*
(nconc *spec-providers*
(list `((simple-alist-lookup ,designator) ,prefix ,description)))))))
(defun simple-alist-lookup (designator string)
(let ((alist (cdr (assoc designator *alists*))))
(cdr (assoc string alist :test #'equalp))))
(defun valid-message (string prefix &key space-allowed)
(if (eql (search prefix string :test #'char-equal) 0)
(and (or space-allowed
(not (find #\space string :start (length prefix))))
(length prefix))
nil))
(defun strip-address (string &key (address *nickname*) (final nil))
(loop for i in (list (format nil "~A " address)
(format nil "~A: " address)
(format nil "~A:" address)
(format nil "~A, " address))
do (aif (valid-message string i :space-allowed t)
(return-from strip-address (subseq string it))))
(and (not final) string))
(defun msg-hook (message)
(let ((destination (if (string-equal (first (arguments message)) *nickname*)
(source message)
(first (arguments message))))
(to-lookup (strip-address (car (last (arguments message))))))
(if (and (or
(string-equal (first (arguments message)) *nickname*)
(not (string= to-lookup (car (last (arguments message))))))
(member to-lookup '("help" "help?") :test #'string-equal))
(progn
(privmsg *connection* destination
(format nil "To use the ~A bot, say something like \"database term\", where database is one of (~{~S~^, ~}) and term is the desired lookup. The available databases are:"
*nickname*
(mapcar #'second *spec-providers*)))
(loop for i from 1 for j in *spec-providers*
with elts = nil
do (push j elts)
if (zerop (mod i 4))
do (progn
(privmsg *connection* destination
(format nil "~{~{~*~S, ~A~}~^; ~}"
(nreverse elts)))
(setf elts nil)))
)
(loop for type in *spec-providers*
for actual-fun = (if (typep (first type) 'symbol)
(first type)
(lambda (lookup) (destructuring-bind (fun first-arg) (first type)
(funcall fun first-arg lookup))))
do
(aif (strip-address to-lookup :address (second type) :final t)
(let ((looked-up (funcall actual-fun it)))
(if (and (<= 0 (count #\space it)
(if (member actual-fun *spaces-allowed*) 1 0)1)
(not looked-up))
(setf looked-up (format nil "Sorry, I couldn't find anything for ~A." it)))
(and looked-up
(privmsg *connection* destination looked-up))))))))
(defparameter *754-file*
(merge-pathnames "754.lisp-expr"
(make-pathname
:directory
(pathname-directory
(or *load-truename*
*default-pathname-defaults*)))))
(defparameter *ppc-file*
(merge-pathnames "ppc-assem.lisp-expr"
(make-pathname
:directory
(pathname-directory
(or *load-truename*
*default-pathname-defaults*)))))
(defparameter *sus-file*
(merge-pathnames "sus.lisp-expr"
(make-pathname
:directory
(pathname-directory
(or *load-truename*
*default-pathname-defaults*)))))
(defparameter *man-file*
(merge-pathnames "man.lisp-expr"
(make-pathname
:directory
(pathname-directory
(or *load-truename*
*default-pathname-defaults*)))))
(defun start-specbot (nick server &rest channels)
(add-simple-alist-lookup *754-file* 'ieee754 "ieee754" "Section numbers of IEEE 754")
(add-simple-alist-lookup *ppc-file* 'ppc "ppc" "PowerPC assembly mnemonics")
(add-simple-alist-lookup *sus-file* 'sus "posix" "Single UNIX Specification")
(add-simple-alist-lookup *man-file* 'man "man" "Mac OS X Man Pages")
(setf *nickname* nick)
(setf *connection* (connect :nickname *nickname* :server server))
(mapcar #'(lambda (channel) (join *connection* channel)) channels)
(add-hook *connection* 'irc::irc-privmsg-message 'msg-hook)
#+(or sbcl
openmcl)
(start-background-message-handler *connection*)
#-(or sbcl
openmcl)
(read-message-loop *connection*))
(defun shuffle-hooks ()
(irc::remove-hooks *connection* 'irc::irc-privmsg-message)
(add-hook *connection* 'irc::irc-privmsg-message 'msg-hook))
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