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- ;;;
- ;;; 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
- ;;;
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-
- (define define-initial-key
- (letrec
- ((%prefix
- (lambda (alists char)
- (let ((upcase (char-upcase char)))
- (%set-comtab-entry! alists upcase %command)
- (if (char-alphabetic? char)
- (%set-comtab-entry! alists (char-downcase char) %command)))))
- (%command '()))
-
- (lambda (char command)
- (cond ((char? char)
- (%set-comtab-key comtab (char-upcase char) command)
- (if (char-alphabetic? char)
- (%set-comtab-key comtab (char-downcase char) command)))
- ((and (pair? char) (null? (cdr char)))
- (%set-comtab-key comtab (char-upcase (car char)) command)
- (if (char-alphabetic? (car char))
- (%set-comtab-key comtab (char-downcase (car char)) command)))
- ((pair? char)
- (set! %command command)
- (comtab-lookup-prefix char %prefix))
- ((char-set? char)
- (mapc (lambda (char) (set-comtab-entry! char command))
- (char-set-members char)))
- (else (error "Unknown character" char)))
- char)))
-
- (define define-initial-prefix-key
- (letrec
- ((%prefix
- (lambda (alists char)
- (let ((upcase (char-upcase char)))
- (if (pair? %char)
- (%set-comtab-entry! alists upcase %command)
- (%set-comtab-key alists upcase %command))
- (%comtab-make-prefix-char! alists upcase (cons '() '()))
- (if (char-alphabetic? char)
- (%comtab-make-synonym-char! alists (char-downcase char)
- alists upcase)))))
- (%char '())
- (%command '()))
-
- (lambda (char command)
- (cond ((or (char? char) (pair? char))
- (set! %command command)
- (set! %char char)
- (comtab-lookup-prefix char %prefix))
- (else (error "Unknown character" char)))
- char)))
-
- (define (define-initial-default-key command)
- (set! default-key command)
- (set-cdr! comtab (make-vector 256 command)))
- ;;; change to 256 for internationalize
-