| 1 | ;;; -*-lisp-*- |
| 2 | ;;; |
| 3 | ;;; Extensions for more infix operators |
| 4 | ;;; |
| 5 | ;;; (c) 2006 Mark Wooding |
| 6 | ;;; |
| 7 | |
| 8 | ;;;----- Licensing notice --------------------------------------------------- |
| 9 | ;;; |
| 10 | ;;; This program is free software; you can redistribute it and/or modify |
| 11 | ;;; it under the terms of the GNU General Public License as published by |
| 12 | ;;; the Free Software Foundation; either version 2 of the License, or |
| 13 | ;;; (at your option) any later version. |
| 14 | ;;; |
| 15 | ;;; This program is distributed in the hope that it will be useful, |
| 16 | ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | ;;; GNU General Public License for more details. |
| 19 | ;;; |
| 20 | ;;; You should have received a copy of the GNU General Public License |
| 21 | ;;; along with this program; if not, write to the Free Software Foundation, |
| 22 | ;;; Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 23 | |
| 24 | (defpackage #:infix-ext |
| 25 | (:use #:common-lisp #:mdw.base #:mdw.factorial #:infix-keywords #:infix)) |
| 26 | (in-package #:infix-ext) |
| 27 | |
| 28 | (defun assignop-apply (op) |
| 29 | (let ((y (popval)) |
| 30 | (x (popval))) |
| 31 | (pushval (list 'update-place op x y)))) |
| 32 | |
| 33 | (definfix *= (120 . 5) (assignop-apply '*)) |
| 34 | (definfix %= (120 . 5) (assignop-apply 'mod)) |
| 35 | (definfix //= (120 . 5) (assignop-apply 'floor)) |
| 36 | (definfix &= (120 . 5) (assignop-apply 'logand)) |
| 37 | (definfix \|= (120 . 5) (assignop-apply 'logior)) |
| 38 | (definfix <<= (120 . 5) (assignop-apply 'ash)) |
| 39 | (definfix >>= (120 . 5) (unop-apply-toggle '-) (assignop-apply '*)) |
| 40 | |
| 41 | (defpostfix ++ 120 (unop-apply 'incf-after)) |
| 42 | (defpostfix -- 120 (unop-apply 'decf-after)) |
| 43 | |
| 44 | (defpostfix ! 120 (unop-apply 'factorial)) |
| 45 | |
| 46 | ;;;----- That's all, folks -------------------------------------------------- |