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