From 8ffbc2df0fde83082610149d24e594c1cd879f4a Mon Sep 17 00:00:00 2001 From: Bryan Newbold Date: Mon, 20 Feb 2017 00:05:25 -0800 Subject: Import Upstream version 2a6 --- gambit.init | 219 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 219 insertions(+) create mode 100644 gambit.init (limited to 'gambit.init') diff --git a/gambit.init b/gambit.init new file mode 100644 index 0000000..47717dc --- /dev/null +++ b/gambit.init @@ -0,0 +1,219 @@ +;;;"gambit.init" Initialisation for SLIB for Gambit -*-scheme-*- +;;; Copyright (C) 1991, 1992, 1993 Aubrey Jaffer +; +;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. I have made no warrantee or representation that the operation of +;this software will be error-free, and I am under no obligation to +;provide any services, by way of maintenance, update, or otherwise. +; +;3. In conjunction with products arising from the use of this +;material, there shall be no use of my name in any advertising, +;promotional, or sales literature without prior written consent in +;each case. + +;;; Updated 1992 February 1 for Gambit v1.71 -- by Ken Dickey +;;; Date: Wed, 12 Jan 1994 15:03:12 -0500 +;;; From: barnett@armadillo.urich.edu (Lewis Barnett) +;;; Relative pathnames for Slib in MacGambit + +(define (SOFTWARE-TYPE) 'UNIX) ; 'MACOS for MacGambit. + +(define (scheme-implementation-type) 'gambit) + +(define (scheme-implementation-version) "?") + +(define SYSTEM ##unix-system) ; Comment out for 'MACOS + +;;; (implementation-vicinity) should be defined to be the pathname of +;;; the directory where any auxillary files to your Scheme +;;; implementation reside. + +(define implementation-vicinity + (let ((arg0 (vector-ref ##argv 0))) + (let loop ((i (- (string-length arg0) 1))) + (cond ((negative? i) "") + ((char=? #\: (string-ref arg0 i)) + (lambda () + (substring arg0 0 (+ i 1)))) + (else (loop (- i 1))))))) + +;;; (library-vicinity) should be defined to be the pathname of the +;;; directory where files of Scheme library functions reside. + +;;; This assumes that the slib files are in a folder +;;; called slib in the same directory as the MacGambit Interpreter. + +(define library-vicinity + (let ((library-path + (case (software-type) + ((UNIX) "/usr/local/lib/slib/") + ((MACOS) (string-append (implementation-vicinity) ":slib:")) + ((AMIGA) "dh0:scm/Library/") + ((VMS) "lib$scheme:") + ((MS-DOS) "C:\\SLIB\\") + (else "")))) + (lambda () library-path))) + +;;; *features* should be set to a list of symbols describing features +;;; of this implementation. See Template.scm for the list of feature +;;; names. + +(define *features* + ((lambda (l) + (if (eq? (SOFTWARE-TYPE) 'MACOS) l (cons 'system l))) + '( + source ;can load scheme source files + ;(slib:load-source "filename") + compiled ;can load compiled files + ;(slib:load-compiled "filename") + rev4-report + ieee-p1178 + sicp + rev4-optional-procedures + rev3-procedures + rev2-procedures + multiarg/and- + multiarg-apply + object-hash + rationalize + delay + with-file + transcript + char-ready? + ieee-floating-point + full-continuation + ))) + +;;; (OUTPUT-PORT-WIDTH ) +(define (output-port-width . arg) 79) + +;;; (OUTPUT-PORT-HEIGHT ) +(define (output-port-height . arg) 24) + +;;; (CURRENT-ERROR-PORT) +(define current-error-port + (let ((port (current-output-port))) + (lambda () port))) + +;;; (TMPNAM) makes a temporary file name. +(define tmpnam + (let ((cntr 100)) + (lambda () (set! cntr (+ 1 cntr)) + (let ((tmp (string-append "slib_" (number->string cntr)))) + (if (file-exists? tmp) (tmpnam) tmp))))) + +;;; FORCE-OUTPUT flushes any pending output on optional arg output port +;;; use this definition if your system doesn't have such a procedure. +(define (force-output . arg) #t) + +;;; CHAR-CODE-LIMIT is one greater than the largest integer which can +;;; be returned by CHAR->INTEGER. +(define char-code-limit 256) + +;; MOST-POSITIVE-FIXNUM is used in modular.scm +(define most-positive-fixnum #x1FFFFFFF) ;; 3-bit tag for 68K + +;;; Return argument +(define (identity x) x) + +;;; If your implementation provides eval, SLIB:EVAL is single argument +;;; eval using the top-level (user) environment. +(define SLIB:EVAL ##eval-global);; Gambit v1.71 + +;;; If your implementation provides R4RS macros: +;(define macro:eval slib:eval) +;(define macro:load load) + +(define *defmacros* + (list (cons 'defmacro + (lambda (name parms . body) + `(set! *defmacros* (cons (cons ',name (lambda ,parms ,@body)) + *defmacros*)))))) +(define (defmacro? m) (and (assq m *defmacros*) #t)) + +(define (macroexpand-1 e) + (if (pair? e) (let ((a (car e))) + (cond ((symbol? a) (set! a (assq a *defmacros*)) + (if a (apply (cdr a) (cdr e)) e)) + (else e))) + e)) + +(define (macroexpand e) + (if (pair? e) (let ((a (car e))) + (cond ((symbol? a) + (set! a (assq a *defmacros*)) + (if a (macroexpand (apply (cdr a) (cdr e))) e)) + (else e))) + e)) + +(define gentemp + (let ((*gensym-counter* -1)) + (lambda () + (set! *gensym-counter* (+ *gensym-counter* 1)) + (string->symbol + (string-append "slib:G" (number->string *gensym-counter*)))))) + +(define base:eval slib:eval) +(define (defmacro:eval x) (base:eval (defmacro:expand* x))) +(define (defmacro:expand* x) + (require 'defmacroexpand) (apply defmacro:expand* x '())) + +(define (defmacro:load ) + (slib:eval-load defmacro:eval)) + +(define (slib:eval-load evl) + (if (not (file-exists? )) + (set! (string-append (scheme-file-suffix)))) + (call-with-input-file + (lambda (port) + (let ((old-load-pathname *load-pathname*)) + (set! *load-pathname* ) + (do ((o (read port) (read port))) + ((eof-object? o)) + (evl o)) + (set! *load-pathname* old-load-pathname))))) + +;; define an error procedure for the library +(define SLIB:ERROR error) + +;; define these as appropriate for your system. +(define slib:tab (integer->char 9)) +(define slib:form-feed (integer->char 12)) + +(define (1+ n) (+ n 1)) +(define (-1+ n) (- n 1)) +(define 1- -1+) + +(define in-vicinity string-append) + +;;; Define SLIB:EXIT to be the implementation procedure to exit or +;;; return if exitting not supported. +(define slib:exit (lambda args (exit))) + +;;; Here for backward compatability + +(define (scheme-file-suffix) ".scm") + +;;; (SLIB:LOAD-SOURCE "foo") should load "foo.scm" or with whatever +;;; suffix all the module files in SLIB have. See feature 'SOURCE. + +(define slib:load-source load) + +;;; (SLIB:LOAD-COMPILED "foo") should load the file that was produced +;;; by compiling "foo.scm" if this implementation can compile files. +;;; See feature 'COMPILED. + +(define slib:load-compiled load) + +;;; At this point SLIB:LOAD must be able to load SLIB files. + +(define slib:load slib:load-source) + +(slib:load (in-vicinity (library-vicinity) "require")) +;;; --- E O F --- -- cgit v1.2.3