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- ;;;; Template for configuration of *features* for STk -*-scheme-*-
- ;;; Copyright (C) 1991, 1992, 1993 Aubrey Jaffer.
-
- ;; Author Erick Gallesio (eg@unice.fr)
-
- (require "unix")
-
- ;;; (software-type) should be set to the generic operating system type.
- ;;; UNIX, VMS, MACOS, AMIGA and MSDOS are supported.
-
- (define (software-type) 'UNIX)
-
- ;;; (scheme-implementation-type) should return the name of the scheme
- ;;; implementation loading this file.
-
- (define (scheme-implementation-type) '|STk|)
-
- ;;; (scheme-implementation-version) should return a string describing
- ;;; the version the scheme implementation loading this file.
-
- (define (scheme-implementation-version) (version))
-
- ;;; (implementation-vicinity) should be defined to be the pathname of
- ;;; the directory where any auxillary files to your Scheme
- ;;; implementation reside.
-
- (define (implementation-vicinity) "/usr/local/lib/stk/")
-
- ;;; (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") "/usr/local/lib/slib/")))
- (lambda () library-path)))
-
- ;;; *FEATURES* should be set to a list of symbols describing features
- ;;; of this implementation. Suggestions for features are:
-
- (define *features*
- '(
- source ;can load scheme source files
- ;(slib:load-source "filename")
- compiled ;can load compiled files
- ;(slib:load-compiled "filename")
- rev4-report ;conforms to
- ; rev3-report ;conforms to
- ; ieee-p1178 ;conforms to
- ; sicp ;runs code from Structure and
- ;Interpretation of Computer
- ;Programs by Abelson and Sussman.
- rev4-optional-procedures ;LIST-TAIL, STRING->LIST,
- ;LIST->STRING, STRING-COPY,
- ;STRING-FILL!, LIST->VECTOR,
- ;VECTOR->LIST, and VECTOR-FILL!
- ; rev3-procedures ;LAST-PAIR, T, and NIL
- ; rev2-procedures ;SUBSTRING-MOVE-LEFT!,
- ;SUBSTRING-MOVE-RIGHT!,
- ;SUBSTRING-FILL!,
- ;STRING-NULL?, APPEND!, 1+,
- ;-1+, <?, <=?, =?, >?, >=?
- multiarg/and- ;/ and - can take more than 2 args.
- multiarg-apply ;APPLY can take more than 2 args.
- ; rationalize
- delay ;has DELAY and FORCE
- with-file ;has WITH-INPUT-FROM-FILE and
- ;WITH-OUTPUT-FROM-FILE
- string-port ;has CALL-WITH-INPUT-STRING and
- ;CALL-WITH-OUTPUT-STRING
- ; transcript ;TRANSCRIPT-ON and TRANSCRIPT-OFF
- ; char-ready?
- ; macro ;has R4RS high level macros
- ; defmacro ;has Common Lisp DEFMACRO
- eval ;SLIB:EVAL is single argument eval
- ; record ;has user defined data structures
- ; values ;proposed multiple values
- dynamic-wind ;proposed dynamic-wind
- ieee-floating-point ;conforms to
- full-continuation ;can return multiple times
- ; object-hash ;has OBJECT-HASH
-
- ; sort ; commented because icomplete
- ; queue ;queues
- ; pretty-print
- ; object->string
- ; format
- ; compiler ;has (COMPILER)
- ed ;(ED) is editor
- system ;posix (system <string>)
- getenv ;posix (getenv <string>)
- ; program-arguments ;returns list of strings (argv)
- ; Xwindows ;X support
- ; curses ;screen management package
- ; termcap ;terminal description package
- ; terminfo ;sysV terminal description
- ))
-
- ;;; (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))
- (string-append "slib_" (number->string cntr)))))
-
- ;;; (DELETE-FILE <string>)
- (define (delete-file f) (system (format #f "/bin/rm ~A" f)))
-
- ;;; 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) (apply flush arg))
-
- ;;; 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 #x0fffffff)
-
- ;;; If your implementation provides eval SLIB:EVAL is single argument
- ;;; eval using the top-level (user) environment.
- (define slib:eval eval)
-
- ;;; If your implementation provides R4RS macros:
- ;(define macro:eval slib:eval)
- ;(define macro:load load)
-
- (define *macros* '())
-
- (define-macro (defmacro name args . body)
- `(begin
- (define-macro (,name ,@args) ,@body)
- (set! *macros* (cons ,name *macros*))))
-
-
- (define (defmacro? m) (and (memv m *macros*) #t))
-
- (define macroexpand-1 MACRO-EXPAND-1)
- (define macroexpand MACRO-EXPAND)
-
-
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
- (define gentemp GENSYM)
- (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 <pathname>)
- (slib:eval-load <pathname> defmacro:eval))
-
- (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 an error procedure for the library
- (define (slib:error . args)
- (error (apply string-append (map (lambda (x) (format #f " ~a" x)) args))))
-
-
- ;;; define these as appropriate for your system.
- (define slib:tab (integer->char 9))
- (define slib:form-feed (integer->char 12))
-
- ;;; Define these if your implementation's syntax can support it and if
- ;;; they are not already defined.
- (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 exit)
-
- ;;; 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 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)
-
- ;;;
- ;;; Retain original require/provide before loading "require.scm"
- ;;;
- (define stk:require require)
- (define stk:provide provide)
- (define stk:provided? provided?)
-
- (define slib:load slib:load-source)
- (slib:load (in-vicinity (library-vicinity) "require"))
-
-
- ;;;
- ;;; Redefine require/provide so that symbols use SLIB one and strings use STk one
- ;;;
-
- (define require
- (let ((slib:require require))
- (lambda (item)
- ((if (symbol? item) slib:require stk:require) item ))))
-
- (define provide
- (let ((slib:provide provide))
- (lambda (item)
- ((if (symbol? item) slib:provide stk:provide) item))))
-
- (define provided?
- (let ((slib:provided? provided?))
- (lambda (item)
- ((if (symbol? item) slib:provided? stk:provided?) item))))
-
- (define identity (lambda (x) x))
-