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;;; -*- Mode: Lisp; Package: Maxima; Syntax: Common-Lisp; Base: 10 -*- ;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; The data in this file contains enhancments. ;;;;;
;;; ;;;;;
;;; Copyright (c) 1984,1987 by William Schelter,University of Texas ;;;;;
;;; All rights reserved ;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; 1001 TRANSLATE properties for everyone. ;;;
;;; (c) Copyright 1980 Massachusetts Institute of Technology ;;;
;;; Maintained by GJC ;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(in-package :maxima)
(macsyma-module trans4)
;;; These are translation properties for various operators.
(def%tr mnctimes (form)
(setq form (tr-args (cdr form)))
(cond ((= (length form) 2)
`($any ncmul2 . ,form))
(t
`($any ncmuln (list . ,form) nil))))
(def%tr mncexpt (form)
`($any . (ncpower ,@(tr-args (cdr form)))))
(def%tr $remainder (form)
(let ((n (tr-nargs-check form '(2 . nil)))
(tr-args (mapcar 'translate (cdr form))))
(cond ((and (= n 2)
(eq (caar tr-args) '$fixnum)
(eq (car (cadr tr-args)) '$fixnum))
`($fixnum . (rem ,(cdr (car tr-args))
,(cdr (cadr tr-args)))))
(t
(call-and-simp '$any '$remainder (mapcar 'cdr tr-args))))))
(def%tr $beta (form)
`($any . (simplify (list '($beta) ,@(tr-args (cdr form))))))
(def%tr mfactorial (form)
(setq form (translate (cadr form)))
(cond ((eq (car form) '$fixnum)
`($number . (factorial ,(cdr form))))
(t
`($any . (simplify `((mfactorial) ,,(cdr form)))))))
;; Kill off the special code for translating sum and product.
(def%tr %sum $batcon)
(def%tr %product $batcon)
;; From MATCOM.
;; Temp autoloads needed for pdp-10. There is a better way
;; to distribute this info, too bad I never implemented it.
(mapc #'(lambda (x)
(let ((old-prop (get (cdr x) 'autoload)))
(if (not (null old-prop))
(putprop (car x) old-prop 'autoload))))
'((proc-$matchdeclare . $matchdeclare)
(proc-$defmatch . $defmatch)
(proc-$defrule . $defrule)
(proc-$tellsimpafter . $tellsimpafter)
(proc-$tellsimp . $tellsimp )))
(defun yuk-su-meta-prop (f form)
(let ((meta-prop-p t)
(meta-prop-l nil))
(funcall f (cdr form))
`($any . (progn ,@(mapcar #'patch-up-meval-in-fset (nreverse meta-prop-l))))))
(def%tr $matchdeclare (form)
(do ((l (cdr form) (cddr l))
(vars ()))
((null l)
`($any . (progn
,@(mapcar #'(lambda (var)
(dtranslate `(($define_variable)
,var
((mquote) ,var)
$any)))
vars)
,(dtranslate `((sub_$matchdeclare) ,@(cdr form))))))
(cond ((atom (car l))
(push (car l) vars))
((eq (caaar l) 'mlist)
(setq vars (append (cdar l) vars))))))
(def%tr sub_$matchdeclare (form)
(yuk-su-meta-prop 'proc-$matchdeclare `(($matchdeclare) ,@(cdr form))))
(def%tr $defmatch (form)
(yuk-su-meta-prop 'proc-$defmatch form))
(def%tr $tellsimp (form)
(yuk-su-meta-prop 'proc-$tellsimp form))
(def%tr $tellsimpafter (form)
(yuk-su-meta-prop 'proc-$tellsimpafter form))
(def%tr $defrule (form)
(yuk-su-meta-prop 'proc-$defrule form))
(defun patch-up-meval-in-fset (form)
(cond ((not (eq (car form) 'fset))
form)
(t
;; FORM is always generated by META-FSET
(destructuring-let ((((nil ssymbol) (nil (nil definition) nil)) (cdr form)))
(unless (eq (car definition) 'lambda)
(tr-format
"PATCH-UP-MEVAL-IN-FSET: not a lambda expression: ~A~%"
definition)
(barfo))
(tr-format (intl:gettext "note: translating rule or match ~:M ...~%") ssymbol)
(setq definition (lisp->lisp-tr-lambda definition))
(if (null definition)
form
;; If the definition is a lambda form, just use defun
;; instead of fset.
(if (eq (car definition) 'lambda)
`(defun ,ssymbol ,@(cdr definition))
`(fset ',ssymbol ,definition)))))))
(defvar lisp->lisp-tr-lambda t)
(defun lisp->lisp-tr-lambda (l)
;; basically, a lisp->lisp translation, setting up
;; the proper lambda contexts for the special forms,
;; and calling TRANSLATE on the "lusers" generated by
;; Fateman braindamage, (MEVAL '$A), (MEVAL '(($F) $X)).
(if lisp->lisp-tr-lambda
(catch 'lisp->lisp-tr-lambda
(tr-lisp->lisp l))
()))
(defun tr-lisp->lisp (exp)
(if (atom exp)
(cdr (translate-atom exp))
(let ((op (car exp)))
(if (symbolp op)
(funcall (or (get op 'tr-lisp->lisp) #'tr-lisp->lisp-default)
exp)
(progn (tr-format (intl:gettext "error: found a non-symbolic operator; I give up.~%"))
(throw 'lisp->lisp-tr-lambda ()))))))
(defun tr-lisp->lisp-default (exp)
(cond ((macsyma-special-op-p (car exp))
(tr-format (intl:gettext "error: unhandled special operator ~:@M~%") (car exp))
(throw 'lisp->lisp-tr-lambda ()))
('else
(tr-lisp->lisp-fun exp))))
(defun tr-lisp->lisp-fun (exp)
(cons (car exp) (maptr-lisp->lisp (cdr exp))))
(defun maptr-lisp->lisp (l)
(mapcar #'tr-lisp->lisp l))
(defun-prop (declare tr-lisp->lisp) (form)
form)
(defun-prop (lambda tr-lisp->lisp) (form)
(destructuring-let (((() arglist . body) form))
(mapc #'tbind arglist)
(setq body (maptr-lisp->lisp body))
`(lambda ,(tunbinds arglist) ,@body)))
(defun-prop (prog tr-lisp->lisp) (form)
(destructuring-let (((() arglist . body) form))
(mapc #'tbind arglist)
(setq body (mapcar #'(lambda (x)
(if (atom x) x
(tr-lisp->lisp x)))
body))
`(prog ,(tunbinds arglist) ,@body)))
;;(DEFUN RETLIST FEXPR (L)
;; (CONS '(MLIST SIMP)
;; (MAPCAR #'(LAMBDA (Z) (LIST '(MEQUAL SIMP) Z (MEVAL Z))) L)))
(defun-prop (retlist tr-lisp->lisp) (form)
(push-autoload-def 'marrayref '(retlist_tr))
`(retlist_tr ,@(mapcan #'(lambda (z)
(list `',z (tr-lisp->lisp z)))
(cdr form))))
(defun-prop (quote tr-lisp->lisp) (form) form)
(defprop catch tr-lisp->lisp-fun tr-lisp->lisp)
(defprop throw tr-lisp->lisp-fun tr-lisp->lisp)
(defprop return tr-lisp->lisp-fun tr-lisp->lisp)
(defprop function tr-lisp->lisp-fun tr-lisp->lisp)
(defun-prop (setq tr-lisp->lisp) (form)
(do ((l (cdr form) (cddr l))
(n ()))
((null l) (cons 'setq (nreverse n)))
(push (car l) n)
(push (tr-lisp->lisp (cadr l)) n)))
(defun-prop (msetq tr-lisp->lisp) (form)
(cdr (translate `((msetq) ,@(cdr form)))))
(defun-prop (cond tr-lisp->lisp) (form)
(cons 'cond (mapcar #'maptr-lisp->lisp (cdr form))))
(defprop not tr-lisp->lisp-fun tr-lisp->lisp)
(defprop and tr-lisp->lisp-fun tr-lisp->lisp)
(defprop or tr-lisp->lisp-fun tr-lisp->lisp)
(defvar unbound-meval-kludge-fix t)
(defun-prop (meval tr-lisp->lisp) (form)
(setq form (cadr form))
(cond ((and (not (atom form))
(eq (car form) 'quote))
(cdr (translate (cadr form))))
(unbound-meval-kludge-fix
;; only case of unbound MEVAL is in output of DEFMATCH,
;; and appears like a useless double-evaluation of arguments.
form)
('else
(tr-format (intl:gettext "error: found unbound MEVAL; I give up.~%"))
(throw 'lisp->lisp-tr-lambda ()))))
(defun-prop (is tr-lisp->lisp) (form)
(setq form (cadr form))
(cond ((and (not (atom form))
(eq (car form) 'quote))
(cdr (translate `(($is) ,(cadr form)))))
('else
(tr-format (intl:gettext "error: found unbound IS; I give up.~%"))
(throw 'lisp->lisp-tr-lambda ()))))
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