96 lines
2.7 KiB
Scheme
96 lines
2.7 KiB
Scheme
;;;
|
||
;;; Copyright (c) 1985 Massachusetts Institute of Technology
|
||
;;;
|
||
;;; This material was developed by the Scheme project at the
|
||
;;; Massachusetts Institute of Technology, Department of
|
||
;;; Electrical Engineering and Computer Science. Permission to
|
||
;;; copy this software, to redistribute it, and to use it for any
|
||
;;; purpose is granted, subject to the following restrictions and
|
||
;;; understandings.
|
||
;;;
|
||
;;; 1. Any copy made of this software must include this copyright
|
||
;;; notice in full.
|
||
;;;
|
||
;;; 2. Users of this software agree to make their best efforts (a)
|
||
;;; to return to the MIT Scheme project any improvements or
|
||
;;; extensions that they make, so that these may be included in
|
||
;;; future releases; and (b) to inform MIT of noteworthy uses of
|
||
;;; this software.
|
||
;;;
|
||
;;; 3. All materials developed as a consequence of the use of
|
||
;;; this software shall duly acknowledge such use, in accordance
|
||
;;; with the usual standards of acknowledging credit in academic
|
||
;;; research.
|
||
;;;
|
||
;;; 4. MIT has made no warrantee or representation that the
|
||
;;; operation of this software will be error-free, and MIT is
|
||
;;; under no obligation to provide any services, by way of
|
||
;;; maintenance, update, or otherwise.
|
||
;;;
|
||
;;; 5. In conjunction with products arising from the use of this
|
||
;;; material, there shall be no use of the name of the
|
||
;;; Massachusetts Institute of Technology nor of any adaptation
|
||
;;; thereof in any advertising, promotional, or sales literature
|
||
;;; without prior written consent from MIT in each case.
|
||
;;;
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;;
|
||
;;; Modified by Texas Instruments Inc 8/15/85
|
||
;;;
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
;;; equating language feature
|
||
|
||
(alias vector-cons make-vector)
|
||
|
||
(alias vector-size vector-length)
|
||
|
||
(alias conjunction and)
|
||
|
||
(alias disjunction or)
|
||
|
||
(macro string-allocate
|
||
(lambda (e)
|
||
(list 'make-string (cadr e) " ")))
|
||
|
||
|
||
;;; Following equations are temporary till I understand them better
|
||
|
||
(macro without-interrupts
|
||
(lambda (e)
|
||
(cdr e)))
|
||
|
||
|
||
(macro define-unparser
|
||
(lambda (e)
|
||
'()))
|
||
|
||
(macro declare (lambda (e) '()))
|
||
|
||
(macro integrate (lambda (e) '()))
|
||
|
||
(macro primitive-datum
|
||
(lambda (e) (cadr e)))
|
||
|
||
(macro set!
|
||
(lambda (e)
|
||
(if (= 2 (length e))
|
||
(list (car e) (cadr e) '#!unassigned)
|
||
e)))
|
||
|
||
;;; some to remove name clashes
|
||
|
||
;;; line-length is a pcs primitive. we are changing it to line-string-length
|
||
;;; by defining a macro.
|
||
|
||
(define-integrable line-string-length
|
||
(lambda (line)
|
||
(string-length (line-string line))))
|
||
|
||
(macro line-length
|
||
(lambda (e)
|
||
(cons 'line-string-length (cdr e))))
|
||
|
||
|
||
|
||
|