X-Git-Url: http://git.kpe.io/?p=reversi.git;a=blobdiff_plain;f=io.lisp;h=635f90c0c76aa46ca8dc998d00e503183e804974;hp=6a61dba21885ca3245a21e74c9182f47a20911b2;hb=d92820d39c18a373611b5bfb018631cffe3e4bcd;hpb=b29c5d666cbd1d0c08d4da49b32e4ed41c6dabba

diff --git a/io.lisp b/io.lisp
index 6a61dba..635f90c 100644
--- a/io.lisp
+++ b/io.lisp
@@ -1,17 +1,24 @@
+;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10; Package: reversi -*-
 ;;;;***************************************************************************
 ;;;;
 ;;;; FILE IDENTIFICATION
 ;;;; 
-;;;;  Name:           io.cl  
+;;;;  Name:           io.lisp
 ;;;;  Purpose:        Basic Input-Output for reversi
-;;;;  Programer:      Kevin M. Rosenberg, M.D.
+;;;;  Programer:      Kevin Rosenberg based on code by Peter Norvig
 ;;;;  Date Started:   1 Nov 2001
-;;;;  CVS Id:         $Id: io.lisp,v 1.1 2002/10/25 08:36:42 kevin Exp $
 ;;;;
+;;;; $Id: io.lisp,v 1.6 2003/06/17 05:47:18 kevin Exp $
+;;;;
+;;;; This file is Copyright (c) 2001-2003 by Kevin M. Rosenberg 
+;;;; and Copyright (c) 1998-2002 Peter Norvig
+;;;;
+;;;; Reversi users are granted the rights to distribute and use this software
+;;;; as governed by the terms of the Lisp Lesser GNU Public License
+;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
 ;;;;***************************************************************************
 
-(in-package :reversi)
-(declaim (optimize (safety 1) (debug 3) (speed 3)))
+(in-package #:reversi)
 
 
 (eval-when (:compile-toplevel :load-toplevel :execute)
@@ -19,6 +26,7 @@
         (cross-product #'concat-symbol
                        '(? A B C D E F G H ?)
                        '(? 1 2 3 4 5 6 7 8 ?))))
+  (declare (type list square-names))
 
   (defun h8->88 (str)
     "Convert from alphanumeric to numeric square notation."
@@ -28,7 +36,7 @@
   (defun 88->h8 (num)
     "Convert from numeric to alphanumeric square notation."
     (if (valid-p num)
-        (elt square-names num)
+        (nth num square-names)
       num)))
 
 (defun moves-to-string (moves)