summaryrefslogtreecommitdiffstats
path: root/mitscheme.init
diff options
context:
space:
mode:
Diffstat (limited to 'mitscheme.init')
-rw-r--r--mitscheme.init254
1 files changed, 254 insertions, 0 deletions
diff --git a/mitscheme.init b/mitscheme.init
new file mode 100644
index 0000000..a6f1c0e
--- /dev/null
+++ b/mitscheme.init
@@ -0,0 +1,254 @@
+;;;"mitscheme.init" Initialization for SLIB for MITScheme -*-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.
+
+;;; Make this part of your ~/.scheme.init file.
+
+;;; (software-type) should be set to the generic operating system type.
+(define (software-type) 'UNIX)
+
+;;; (scheme-implementation-type) should return the name of the scheme
+;;; implementation loading this file.
+
+(define (scheme-implementation-type) 'MITScheme)
+
+;;; (scheme-implementation-version) should return a string describing
+;;; the version the scheme implementation loading this file.
+
+(define (scheme-implementation-version) "7.3.0")
+
+;;; *features* should be set to a list of symbols describing features
+;;; of this implementation. See Template.scm for the list of feature
+;;; names.
+
+;the following may not be the Right Thing for this application, since
+;it causes an error (rather than just returning nil) when the environment
+;variable is not defined.
+(define getenv get-environment-variable)
+
+;;; (implementation-vicinity) should be defined to be the pathname of
+;;; the directory where any auxillary files to your Scheme
+;;; implementation reside.
+
+(define (implementation-vicinity)
+ (case (software-type)
+ ((UNIX) "/usr/local/src/scheme/")
+ ((VMS) "scheme$src:")))
+
+;;; (library-vicinity) should be defined to be the pathname of the
+;;; directory where files of Scheme library functions reside.
+
+(define library-vicinity
+ (let ((library-path
+ (or (getenv "SCHEME_LIBRARY_PATH")
+ ;; Use this path if your scheme does not support GETENV.
+ (case (software-type)
+ ((UNIX) "/usr/local/lib/slib/")
+ ((VMS) "lib$scheme:")
+ ((MS-DOS) "C:\\SLIB\\")
+ (else "")))))
+ (lambda () library-path)))
+
+(define *features*
+ '(
+ 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
+ rationalize
+ object-hash
+ delay
+ with-file
+ string-port
+ transcript
+ char-ready?
+ record
+ values
+ dynamic-wind
+ ieee-floating-point
+ full-continuation
+; sort
+ queue
+ pretty-print
+ object->string
+ trace ;has macros: TRACE and UNTRACE
+ compiler
+ getenv
+ Xwindows
+ ))
+
+;;; (OUTPUT-PORT-WIDTH <port>)
+(define output-port-width output-port/x-size)
+
+;;; (OUTPUT-PORT-HEIGHT <port>)
+(define (output-port-height . arg) 24)
+
+;;; (CURRENT-ERROR-PORT)
+(define current-error-port
+ (let ((port console-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.
+(define force-output flush-output)
+;;; MITScheme 7.2 is missing flush-output. Use this instead
+;(define (force-output . arg) #t)
+
+;;; CALL-WITH-INPUT-STRING and CALL-WITH-OUTPUT-STRING are the string
+;;; port versions of CALL-WITH-*PUT-FILE.
+(define (call-with-output-string proc)
+ (let ((co (current-output-port)))
+ (with-output-to-string
+ (lambda ()
+ (let ((port (current-output-port)))
+ (with-output-to-port co
+ (lambda () (proc port))))))))
+
+(define (call-with-input-string string proc)
+ (let ((ci (current-input-port)))
+ (with-input-from-string string
+ (lambda ()
+ (let ((port (current-input-port)))
+ (with-input-from-port ci
+ (lambda () (proc port))))))))
+
+(define object->string write-to-string)
+
+;;; CHAR-CODE-LIMIT is one greater than the largest integer which can
+;;; be returned by CHAR->INTEGER. It is defined by MITScheme.
+
+;;; MOST-POSITIVE-FIXNUM is used in modular.scm
+(define most-positive-fixnum #x03FFFFFF)
+
+;;; 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 form) (eval form (repl/environment (nearest-repl))))
+(define (slib:eval form) (eval form user-initial-environment))
+
+(define *macros* '(defmacro))
+(define (defmacro? m) (and (memq m *macros*) #t))
+
+(syntax-table-define system-global-syntax-table 'defmacro
+ (macro defmacargs
+ (let ((macname (car defmacargs)) (macargs (cadr defmacargs))
+ (macbdy (cddr defmacargs)))
+ `(begin
+ (set! *macros* (cons ',macname *macros*))
+ (syntax-table-define system-global-syntax-table ',macname
+ (macro ,macargs ,@macbdy))))))
+
+(define (macroexpand-1 e)
+ (if (pair? e) (let ((a (car e)))
+ (if (and (symbol? a) (defmacro? a))
+ (apply (syntax-table-ref system-global-syntax-table a)
+ (cdr e))
+ e))
+ e))
+
+(define (macroexpand e)
+ (if (pair? e) (let ((a (car e)))
+ (if (and (symbol? a) (defmacro? a))
+ (macroexpand
+ (apply (syntax-table-ref system-global-syntax-table a)
+ (cdr e)))
+ 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 defmacro:eval slib:eval)
+(define defmacro:load load)
+;;; If your implementation provides R4RS macros:
+;(define macro:eval slib:eval)
+;(define macro:load load)
+
+(define (slib:eval-load <pathname> evl)
+ (if (not (file-exists? <pathname>))
+ (set! <pathname> (string-append <pathname> (scheme-file-suffix))))
+ (call-with-input-file <pathname>
+ (lambda (port)
+ (let ((old-load-pathname *load-pathname*))
+ (set! *load-pathname* <pathname>)
+ (do ((o (read port) (read port)))
+ ((eof-object? o))
+ (evl o))
+ (set! *load-pathname* old-load-pathname)))))
+
+(define record-modifier record-updater) ;some versions need this?
+
+;; define an error procedure for the library
+(define (slib:error . args)
+ (apply error-procedure (append args (list (the-environment)))))
+
+;; define these as appropriate for your system.
+(define slib:tab (integer->char 9))
+(define slib:form-feed (integer->char 12))
+
+(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
+ (cond ((null? args) (exit))
+ ((eqv? #t (car args)) (exit))
+ ((and (number? (car args)) (integer? (car args))) (exit (car args)))
+ (else (exit 1)))))
+
+;;; Here for backward compatability
+
+(define (scheme-file-suffix) "")
+
+;;; (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"))