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- ;;;; Implementation of VICINITY and MODULES for Scheme
- ;Copyright (C) 1991, 1992, 1993, 1994 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.
-
- (define *SLIB-VERSION* "2a2")
-
- ;;; Standardize msdos -> ms-dos.
- (define software-type
- (cond ((eq? 'msdos (software-type))
- (lambda () 'ms-dos))
- (else software-type)))
-
- (define (user-vicinity)
- (case (software-type)
- ((VMS) "[.]")
- (else "")))
-
- (define program-vicinity
- (let ((*vicinity-suffix*
- (case (software-type)
- ((NOSVE) '(#\: #\.))
- ((AMIGA) '(#\: #\/))
- ((UNIX) '(#\/))
- ((VMS) '(#\: #\]))
- ((MS-DOS WINDOWS ATARIST OS/2) '(#\\))
- ((MACOS THINKC) '(#\:)))))
- (lambda ()
- (let loop ((i (- (string-length *load-pathname*) 1)))
- (cond ((negative? i) "")
- ((memv (string-ref *load-pathname* i)
- *vicinity-suffix*)
- (substring *load-pathname* 0 (+ i 1)))
- (else (loop (- i 1))))))))
-
- (define sub-vicinity
- (case (software-type)
- ((VMS)
- (lambda
- (vic name)
- (let ((l (string-length vic)))
- (if (or (zero? (string-length vic))
- (not (char=? #\] (string-ref vic (- l 1)))))
- (string-append vic "[" name "]")
- (string-append (substring vic 0 (- l 1))
- "." name "]")))))
- (else
- (let ((*vicinity-suffix*
- (case (software-type)
- ((NOSVE) ".")
- ((UNIX AMIGA) "/")
- ((MACOS THINKC) ":")
- ((MS-DOS WINDOWS ATARIST OS/2) "\\"))))
- (lambda (vic name)
- (string-append vic name *vicinity-suffix*))))))
-
- (define (make-vicinity <pathname>) <pathname>)
-
- (define *catalog*
- (map
- (lambda (p)
- (if (symbol? (cdr p)) p
- (cons
- (car p)
- (if (pair? (cdr p))
- (cons
- (cadr p)
- (in-vicinity (library-vicinity) (cddr p)))
- (in-vicinity (library-vicinity) (cdr p))))))
- '(
- (rev4-optional-procedures . "sc4opt")
- (rev2-procedures . "sc2")
- (multiarg/and- . "mularg")
- (multiarg-apply . "mulapply")
- (rationalize . "ratize")
- (transcript . "trnscrpt")
- (with-file . "withfile")
- (dynamic-wind . "dynwind")
- (dynamic . "dynamic")
- (fluid-let macro . "fluidlet")
- (alist . "alist")
- (hash . "hash")
- (sierpinski . "sierpinski")
- (soundex . "soundex")
- (hash-table . "hashtab")
- (logical . "logical")
- (random . "random")
- (random-inexact . "randinex")
- (modular . "modular")
- (prime . "prime")
- (charplot . "charplot")
- (sort . "sort")
- (common-list-functions . "comlist")
- (tree . "tree")
- (format . "format")
- (format-inexact . "formatfl")
- (generic-write . "genwrite")
- (pretty-print . "pp")
- (pprint-file . "ppfile")
- (object->string . "obj2str")
- (string-case . "strcase")
- (stdio . "stdio")
- (scanf . "scanf")
- (line-i/o . "lineio")
- (string-port . "strport")
- (getopt . "getopt")
- (debug . "debug")
- (trace defmacro . "trace")
- ; (eval . "eval")
- (record . "record")
- (promise . "promise")
- (synchk . "synchk")
- (defmacroexpand . "defmacex")
- (macro-by-example defmacro . "mbe")
- (syntax-case . "scainit")
- (syntactic-closures . "scmacro")
- (macros-that-work . "macwork")
- (macro . macros-that-work)
- (object . "object")
- (record-object . "recobj")
- (yasos macro . "yasyn")
- (oop . yasos)
- (collect macro . "collect")
- (struct defmacro . "struct")
- (structure syntax-case . "structure")
- (values . "values")
- (queue . "queue")
- (priority-queue . "priorque")
- (array . "array")
- (array-for-each . "arraymap")
- (repl . "repl")
- (process . "process")
- (test . "test")
- (red-black-tree . "rbtree")
- (chapter-order . "chap")
- (posix-time . "time")
- (common-lisp-time . "cltime")
- (relational-database . "rdms")
- (database-utilities . "dbutil")
- (alist-table . "alistab")
- (parameters . "paramlst")
- (read-command . "comparse")
- (match . "match-slib")
- (match-slib . "match-slib")
- (Gwish . "Gwish")
- (generics . "generics")
- )))
-
- (set! *catalog*
- (cons (cons 'portable-scheme-debugger
- (in-vicinity (sub-vicinity (library-vicinity) "psd")
- "psd-slib"))
- *catalog*))
-
- (define *load-pathname* #f)
-
- (define (slib:pathnameize-load *old-load*)
- (lambda (<pathname> . extra)
- (let ((old-load-pathname *load-pathname*))
- (set! *load-pathname* <pathname>)
- (apply *old-load* (cons <pathname> extra))
- (require:provide <pathname>)
- (set! *load-pathname* old-load-pathname))))
-
- (set! slib:load-source
- (slib:pathnameize-load slib:load-source))
- (set! slib:load
- (slib:pathnameize-load slib:load))
-
- ;;;; MODULES
-
- (define *modules* '())
-
- (define (require:provided? feature)
- (if (symbol? feature)
- (if (memq feature *features*) #t
- (let ((path (cdr (or (assq feature *catalog*) '(#f . #f)))))
- (and path (member path *modules*) #t)))
- (and (member feature *modules*) #t)))
-
- (define (require:feature->path feature)
- (if (symbol? feature)
- (if (memq feature *features*) #t
- (let ((path (cdr (or (assq feature *catalog*) '(#f . #f)))))
- (cond ((not path)
- (set! feature (symbol->string feature))
- (if (member feature *modules*) #t
- feature))
- ((symbol? path) (require:feature->path path))
- ((member (if (pair? path) (cdr path) path) *modules*)
- #t)
- (else path))))
- (if (member feature *modules*) #t
- feature)))
-
- (define (require:require feature)
- (let ((path (require:feature->path feature)))
- (cond ((eq? path #t) #t)
- ((not path)
- (newline)
- (display ";required feature not supported: ")
- (display feature)
- (newline)
- (slib:error ";required feature not supported: " feature))
- ((not (pair? path)) ;simple name
- (slib:load path)
- (require:provide feature))
- (else ;special loads
- (require (car path))
- (apply (case (car path)
- ((macro) macro:load)
- ((syntactic-closures) synclo:load)
- ((syntax-case) syncase:load)
- ((macros-that-work) macwork:load)
- ((macro-by-example) defmacro:load)
- ((defmacro) defmacro:load)
- ((source) slib:load-source)
- ((compiled) slib:load-compiled))
- (if (list? path) (cdr path) (list (cdr path))))
- (require:provide feature)))))
-
- (define (require:provide feature)
- (if (symbol? feature)
- (if (not (memq feature *features*))
- (set! *features* (cons feature *features*)))
- (if (not (member feature *modules*))
- (set! *modules* (cons feature *modules*)))))
-
- (require:provide 'vicinity)
-
- (define provide require:provide)
- (define provided? require:provided?)
- (define require require:require)
-
- ;;; Supported by all implementations
- (provide 'eval)
- (provide 'defmacro)
-
- (if (and (string->number "0.0") (inexact? (string->number "0.0")))
- (provide 'inexact))
- (if (rational? (string->number "1/19")) (provide 'rational))
- (if (real? (string->number "0.0")) (provide 'real))
- (if (complex? (string->number "1+i")) (provide 'complex))
- (let ((n (string->number "9999999999999999999999999999999")))
- (if (and n (exact? n)) (provide 'bignum)))
-
- (define current-time
- (if (provided? 'current-time) current-time
- (let ((c 0))
- (lambda () (set! c (+ c 1)) c))))
- (define difftime (if (provided? 'current-time) difftime -))
- (define offset-time (if (provided? 'current-time) offset-time +))
-
- (define report:print
- (lambda args
- (for-each (lambda (x) (write x) (display #\ )) args)
- (newline)))
-
- (define slib:report
- (let ((slib:report (lambda () (slib:report-version) (slib:report-locations))))
- (lambda args
- (cond ((null? args) (slib:report))
- ((not (string? (car args)))
- (slib:report-version) (slib:report-locations #t))
- ((require:provided? 'transcript)
- (transcript-on (car args))
- (slib:report)
- (transcript-off))
- ((require:provided? 'with-file)
- (with-output-to-file (car args) slib:report))
- (else (slib:report))))))
-
- (define slib:report-version
- (lambda ()
- (report:print
- 'SLIB *SLIB-VERSION* 'on (scheme-implementation-type)
- (scheme-implementation-version) 'on (software-type))))
-
- (define slib:report-locations
- (let ((features *features*) (catalog *catalog*))
- (lambda args
- (report:print '(IMPLEMENTATION-VICINITY) 'is (implementation-vicinity))
- (report:print '(LIBRARY-VICINITY) 'is (library-vicinity))
- (report:print '(SCHEME-FILE-SUFFIX) 'is (scheme-file-suffix))
- (cond (*load-pathname*
- (report:print '*LOAD-PATHNAME* 'is *load-pathname*)))
- (cond ((not (null? *modules*))
- (report:print 'Loaded '*MODULES* 'are: *modules*)))
- (let* ((i (+ -1 5)))
- (cond ((eq? (car features) (car *features*)))
- (else (report:print 'loaded '*FEATURES* ':) (display slib:tab)))
- (for-each
- (lambda (x)
- (cond ((eq? (car features) x)
- (if (not (eq? (car features) (car *features*))) (newline))
- (report:print 'Implementation '*FEATURES* ':)
- (display slib:tab) (set! i (+ -1 5)))
- ((zero? i) (newline) (display slib:tab) (set! i (+ -1 5)))
- ((not (= (+ -1 5) i)) (display #\ )))
- (write x) (set! i (+ -1 i)))
- *features*))
- (newline)
- (let* ((i #t))
- (cond ((not (eq? (car catalog) (car *catalog*)))
- (report:print 'Additional '*CATALOG* ':)))
- (cond ((or (pair? args) (not (eq? (car catalog) (car *catalog*))))
- (for-each
- (lambda (x)
- (cond ((eq? (car catalog) x)
- (report:print 'Implementation '*CATALOG* ':)
- (set! i (pair? args))
- (cond (i)
- (else (display slib:tab) (report:print x)
- (display slib:tab) (report:print '...)))))
- (cond (i (display slib:tab) (report:print x))))
- *catalog*))
- (else (report:print 'Implementation '*CATALOG* ':)
- (display slib:tab) (report:print (car *catalog*))
- (display slib:tab) (report:print '...))))
- (newline))))
-
- (define (require-greeting)
- (let ((sit (scheme-implementation-version)))
- (cond ((zero? (string-length sit)))
- ((or (not (string? sit)) (char=? #\? (string-ref sit 0)))
- (newline)
- (slib:report-version)
- (report:print '(IMPLEMENTATION-VICINITY) 'is (implementation-vicinity))
- (report:print 'type '(slib:report) 'for 'configuration)
- (slib:report)
- (newline)))))
-
-