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- ;; "bigloo.init" Initialization for SLIB for Bigloo -*-scheme-*-
- ;; Copyright 1994 Robert Sanders
- ;; Copyright 1991, 1992, 1993 Aubrey Jaffer
- ;; Copyright 1991 David Love
- ;;
- ;; 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.
-
- (define (software-type) 'UNIX)
-
- ;;; (scheme-implementation-type) should return the name of the scheme
- ;;; implementation loading this file.
-
- (define (scheme-implementation-type) 'Bigloo)
-
- ;;; (scheme-implementation-version) should return a string describing
- ;;; the version the scheme implementation loading this file.
-
- ;;; (scheme-implementation-home-page) should return a (string) URL
- ;;; (Uniform Resource Locator) for this scheme implementation's home
- ;;; page; or false if there isn't one.
-
- (define (scheme-implementation-home-page)
- "http://kaolin.unice.fr/~serrano/bigloo/bigloo.html")
-
- (define (scheme-implementation-version) "2.0c")
-
- ;;; (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/unsup/lib/bigloo/")
- ((VMS) "scheme$src:")
- ((MSDOS) "C:\\scheme\\")))
-
- ;;; (library-vicinity) should be defined to be the pathname of the
- ;;; directory where files of Scheme library functions reside.
-
- (define library-vicinity
- (let ((library-path
- (or
- ;; Use this getenv if your implementation supports it.
- (getenv "SCHEME_LIBRARY_PATH")
- ;; Use this path if your scheme does not support GETENV
- ;; or if SCHEME_LIBRARY_PATH is not set.
- (case (software-type)
- ((UNIX) "/home/bambam/leavens/unsup-src/scheme/scm/slib/")
- ((VMS) "lib$scheme:")
- ((MSDOS) "C:\\SLIB\\")
- (else "")))))
- (lambda () library-path)))
-
- ;;; (home-vicinity) should return the vicinity of the user's HOME
- ;;; directory, the directory which typically contains files which
- ;;; customize a computer environment for a user.
-
- (define home-vicinity
- (let ((home-path (getenv "HOME")))
- (lambda () home-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*
- '(
- source ;can load scheme source files
- ;(slib:load-source "filename")
- rev4-report ;conforms to
- rev3-report ;conforms to
- ieee-p1178 ;conforms to
- rev4-optional-procedures
- rev3-procedures
- multiarg/and-
- multiarg-apply
- rationalize
- object-hash
- delay
- promise
- with-file
- transcript
- ieee-floating-point
- eval
- pretty-print
- object->string
- string-case
- string-port
- system
- getenv
- defmacro
- ;;full-continuation ;not without the -call/cc switch
- ))
-
- (define pretty-print pp)
-
- (define (object->string x) (obj->string x))
-
- ;;; Define these if your implementation's syntax can support it and if
- ;;; they are not already defined.
-
- (define (1+ n) (+ n 1))
- (define (-1+ n) (+ n -1))
- (define 1- -1+)
-
- ;;; (OUTPUT-PORT-WIDTH <port>)
- (define (output-port-width . arg) 79)
-
- ;;; (OUTPUT-PORT-HEIGHT <port>)
- (define (output-port-height . arg) 24)
-
- ;;; (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 . args)
- (flush-output-port (if (pair? args) (car args) (current-output-port))))
-
- ;;; CALL-WITH-INPUT-STRING and CALL-WITH-OUTPUT-STRING are the string
- ;;; port versions of CALL-WITH-*PUT-FILE.
- (define (call-with-output-string f)
- (let ((outsp (open-output-string)))
- (f outsp)
- (close-output-port outsp)))
-
- (define (call-with-input-string s f)
- (let* ((insp (open-input-string s))
- (res (f insp)))
- (close-input-port insp)
- res))
-
- ;;; "rationalize" adjunct procedures.
- (define (find-ratio x e)
- (let ((rat (rationalize x e)))
- (list (numerator rat) (denominator rat))))
- (define (find-ratio-between x y)
- (find-ratio (/ (+ x y) 2) (/ (- x y) 2)))
-
- ;;; 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 536870911)
-
- ;;; Return argument
- (define (identity x) x)
-
- ;; define an error procedure for the library
-
- ;;; If your implementation provides eval, SLIB:EVAL is single argument
- ;;; eval using the top-level (user) environment.
- (define slib:eval eval)
-
- (define-macro (defmacro name . forms)
- `(define-macro (,name . ,(car forms)) ,@(cdr forms)))
-
- (define (defmacro? m) (get-eval-expander m))
- (define (macroexpand-1 body) (expand-once body))
- (define (macroexpand body) (expand body))
-
- (define (gentemp) (gensym))
-
- (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 slib:warn
- (lambda args
- (let ((cep (current-error-port)))
- (if (provided? 'trace) (print-call-stack cep))
- (display "Warn: " cep)
- (for-each (lambda (x) (display x cep)) args))))
-
- (define (slib:error . args)
- (if (provided? 'trace) (print-call-stack (current-error-port)))
- (error 'slib:error "" args))
-
- ;; define these as appropriate for your system.
- (define slib:tab (integer->char 9))
- (define slib:form-feed (integer->char 12))
-
- ;;; records
- (defmacro define-record forms
- (let* ((name (car forms))
- (maker-name (symbol-append 'make- name)))
- `(begin
- (define-struct ,name ,@(cadr forms))
- (define ,maker-name ,name))
- ))
-
-
- (define (promise:force p) (force p))
-
- ;;; (implementation-vicinity) should be defined to be the pathname of
- ;;; the directory where any auxillary files to your Scheme
- ;;; implementation reside.
-
- (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 0)))
-
- ;;; Here for backward compatability
- (define scheme-file-suffix
- (let ((suffix (case (software-type)
- ((NOSVE) "_scm")
- (else ".scm"))))
- (lambda () 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 f) (loadq (string-append f (scheme-file-suffix))))
-
- ;;; (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 loadq)
-
- ;;; At this point SLIB:LOAD must be able to load SLIB files.
-
- (define slib:load slib:load-source)
-
- (define defmacro:eval slib:eval)
- (define defmacro:load slib:load)
-
- ;;; If your implementation provides R4RS macros:
- ;(define macro:eval slib:eval)
- ;(define macro:load load)
-
- (slib:load (in-vicinity (library-vicinity) "require"))
- ; eof
-