Import Upstream version 5e2upstream/5e2

1 files changed, 0 insertions, 1555 deletions

diff --git a/Init5e1.scm b/Init5e1.scm
deleted file mode 100644
index ae2f591..0000000
--- a/Init5e1.scm
+++ /dev/null
@@ -1,1555 +0,0 @@
-;; Copyright (C) 1991-2005 Free Software Foundation, Inc.
-;;
-;; This program is free software; you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 2, or (at your option)
-;; any later version.
-;;
-;; This program is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-;;
-;; You should have received a copy of the GNU General Public License
-;; along with this software; see the file COPYING.  If not, write to
-;; the Free Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111, USA.
-;;
-;; As a special exception, the Free Software Foundation gives permission
-;; for additional uses of the text contained in its release of SCM.
-;;
-;; The exception is that, if you link the SCM library with other files
-;; to produce an executable, this does not by itself cause the
-;; resulting executable to be covered by the GNU General Public License.
-;; Your use of that executable is in no way restricted on account of
-;; linking the SCM library code into it.
-;;
-;; This exception does not however invalidate any other reasons why
-;; the executable file might be covered by the GNU General Public License.
-;;
-;; This exception applies only to the code released by the
-;; Free Software Foundation under the name SCM.  If you copy
-;; code from other Free Software Foundation releases into a copy of
-;; SCM, as the General Public License permits, the exception does
-;; not apply to the code that you add in this way.  To avoid misleading
-;; anyone as to the status of such modified files, you must delete
-;; this exception notice from them.
-;;
-;; If you write modifications of your own for SCM, it is your choice
-;; whether to permit this exception to apply to your modifications.
-;; If you do not wish that, delete this exception notice.
-
-;;;; "Init.scm", Scheme initialization code for SCM.
-;;; Author: Aubrey Jaffer.
-
-(define (scheme-implementation-type) 'SCM)
-(define (scheme-implementation-version) "5e1")
-(define (scheme-implementation-home-page)
-  "http://swiss.csail.mit.edu/~jaffer/SCM")
-
-;@
-(define in-vicinity string-append)
-;@
-(define (user-vicinity)
-  (case (software-type)
-    ((VMS)	"[.]")
-    (else	"")))
-;@
-(define vicinity:suffix?
-  (let ((suffi
-	 (case (software-type)
-	   ((AMIGA)				'(#\: #\/))
-	   ((MACOS THINKC)			'(#\:))
-	   ((MS-DOS WINDOWS ATARIST OS/2)	'(#\\ #\/))
-	   ((NOSVE)				'(#\: #\.))
-	   ((UNIX COHERENT PLAN9)		'(#\/))
-	   ((VMS)				'(#\: #\]))
-	   (else
-	    (slib:warn "require.scm" 'unknown 'software-type (software-type))
-	    "/"))))
-    (lambda (chr) (and (memv chr suffi) #t))))
-;@
-(define (pathname->vicinity pathname)
-  (let loop ((i (- (string-length pathname) 1)))
-    (cond ((negative? i) "")
-	  ((vicinity:suffix? (string-ref pathname i))
-	   (substring pathname 0 (+ i 1)))
-	  (else (loop (- i 1))))))
-(define (program-vicinity)
-  (if *load-pathname*
-      (pathname->vicinity *load-pathname*)
-      (slib:error 'program-vicinity " called; use slib:load to load")))
-;@
-(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) ".")
-		   ((MACOS THINKC) ":")
-		   ((MS-DOS WINDOWS ATARIST OS/2) "\\")
-		   ((UNIX COHERENT PLAN9 AMIGA) "/"))))
-	    (lambda (vic name)
-	      (string-append vic name *vicinity-suffix*))))))
-;@
-(define (make-vicinity <pathname>) <pathname>)
-;@
-(define with-load-pathname
-  (let ((exchange
-	 (lambda (new)
-	   (let ((old *load-pathname*))
-	     (set! *load-pathname* new)
-	     old))))
-    (lambda (path thunk)
-      (let ((old #f))
-	(dynamic-wind
-	    (lambda () (set! old (exchange path)))
-	    thunk
-	    (lambda () (exchange old)))))))
-
-(set! *features*
-      (append '(ed getenv tmpnam abort transcript with-file
-		   ieee-p1178 rev4-report rev4-optional-procedures
-		   hash object-hash delay dynamic-wind fluid-let
-		   multiarg-apply multiarg/and- logical defmacro
-		   string-port source current-time sharp:semi
-		   vicinity srfi-59
-		   srfi-60)		;logical
-	      *features*))
-
-(define eval
-  (let ((@eval @eval)
-	(@copy-tree @copy-tree))
-    (lambda (x) (@eval (@copy-tree x)))))
-
-(define (exec-self)
-  (require 'i/o-extensions)
-  (execv (execpath) (if *script*
-			(cons (car (program-arguments))
-			      (cons "\\"
-				    (member *script* (program-arguments))))
-			(program-arguments))))
-
-(define (display-file file . port)
-  (call-with-input-file file
-    (lambda (inport)
-      (do ((c (read-char inport) (read-char inport)))
-	  ((eof-object? c))
-	(apply write-char c port)))))
-(define (terms)
-  (display-file (in-vicinity (implementation-vicinity) "COPYING")))
-
-;;; Read integer up to first non-digit
-(define (read:try-number port . ic)
-  (define chr0 (char->integer #\0))
-  (let loop ((arg (and (not (null? ic)) (- (char->integer (car ic)) chr0))))
-    (let ((c (peek-char port)))
-      (cond ((eof-object? c) #f)
-	    ((char-numeric? c)
-	     (loop (+ (* 10 (or arg 0))
-		      (- (char->integer (read-char port)) chr0))))
-	    (else arg)))))
-
-(define (read-array-type port)
-  (define (bomb pc wid)
-    (error 'array 'syntax? (symbol-append "#" rank "A" pc wid)))
-  (case (char-downcase (peek-char port))
-    ((#\:) (read-char port)
-     (let ((typ (let loop ((arg '()))
-		  (if (= 4 (length arg))
-		      (string->symbol (list->string (reverse arg)))
-		      (let ((c (read-char port)))
-			(and (not (eof-object? c))
-			     (loop (cons (char-downcase c) arg))))))))
-       (define wid (and typ (not (eq? 'bool typ)) (read:try-number port)))
-       (define (check-suffix chrs)
-	 (define chr (read-char port))
-	 (if (and (char? chr) (not (memv (char-downcase chr) chrs)))
-	     (error 'array-type? (symbol-append ":" typ wid chr))))
-       (define prot (assq typ '((floc (128 . +64.0i)
-				      (64  . +64.0i)
-				      (32  . +32.0i)
-				      (16  . +32.0i))
-				(flor (128 . 64.0)
-				      (64  . 64.0)
-				      (32  . 32.0)
-				      (16  . 32.0))
-				(fixz (64 . -64)
-				      (32 . -32)
-				      (16 . -16)
-				      (8  . -8))
-				(fixn (64 . 64)
-				      (32 . 32)
-				      (16 . 16)
-				      (8  . 8))
-				(char . #\a)
-				(bool . #t))))
-       (if prot (set! prot (cdr prot)))
-       (cond ((pair? prot)
-	      (set! prot (assv wid (cdr prot)))
-	      (if (pair? prot) (set! prot (cdr prot)))
-	      (if wid (check-suffix (if (and (inexact? prot) (real? prot))
-					'(#\b #\d)
-					'(#\b)))))
-	     (prot)
-	     (else (check-suffix '())))
-       prot))
-    ((#\\) (read-char port) #\a)
-    ((#\t) (read-char port) #t)
-    ((#\c #\r) (let* ((pc (read-char port)) (wid (read:try-number port)))
-		 (case wid
-		   ((64 32) (case pc
-			      ((#\c) (* +i wid))
-			      (else (exact->inexact wid))))
-		   (else (bomb pc wid)))))
-    ((#\s #\u) (let* ((pc (read-char port)) (wid (read:try-number port)))
-		 (case (or wid (peek-char port))
-		   ((32 16 8) (case pc
-				((#\s) (- wid))
-				(else wid)))
-		   (else (bomb pc wid)))))
-    (else #f)))
-
-;;; We come into read:array with number or #f for RANK.
-(define (read:array rank dims port)
-  (define (make-it rank dims typ)
-    (list->uniform-array (cond (rank)
-                               ((null? dims) 1)
-                               (else (length dims)))
-                         typ
-                         (read port)))
-  (let loop ((dims dims))
-    (define dim (read:try-number port))
-    (if dim
-	(loop (cons dim dims))
-	(case (peek-char port)
-	  ((#\*) (read-char port) (loop dims))
-	  ((#\: #\\ #\t #\c #\r #\s #\u #\T #\C #\R #\S #\U)
-           (make-it rank dims (read-array-type port)))
-	  (else
-           (make-it rank dims #f))))))
-
-;;; read-macros valid for LOAD and READ.
-(define (read:sharp c port reader) ; ignore reader
-  (case c
-    ;; Used in "implcat" and "slibcat"
-    ((#\+) (if (slib:provided? (read port))
-	       (read port)
-	       (begin (read port) (if #f #f))))
-    ;; Used in "implcat" and "slibcat"
-    ((#\-) (if (slib:provided? (read port))
-	       (begin (read port) (if #f #f))
-	       (read port)))
-    ((#\a #\A) (read:array #f '() port))
-    ((#\0 #\1 #\2 #\3 #\4 #\5 #\6 #\7 #\8 #\9)
-     (let* ((num (read:try-number port c))
-	    (chr (peek-char port)))
-       (case chr
-	 ((#\a #\A) (read-char port)
-	  (read:array num '() port))
-	 ((#\*) (read-char port)
-	  (read:array #f (list num) port))
-	 (else
-	  (read:array 1 (list num) port))
-	 ;;(else (error 'sharp 'syntax? (symbol-append "#" num chr)))
-	 )))
-    (else (error "unknown # object" c))))
-
-;;; read-macros valid only in LOAD.
-(define (load:sharp c port reader) ;reader used only for #.
-  (case c
-    ((#\') (read port))
-    ((#\.) (eval (reader port)))
-    ((#\!) (let skip ((metarg? #f))
-	     (let ((c (read-char port)))
-	       (case c
-		 ((#\newline) (if metarg? (skip #t)))
-		 ((#\\) (skip #t))
-		 ((#\!) (cond ((eqv? #\# (peek-char port))
-			       (read-char port)
-			       (if #f #f))
-			      (else (skip metarg?))))
-		 (else (if (char? c) (skip metarg?) c))))))
-    ;; Make #; convert the rest of the line to a (comment ...) form.
-    ;; "build.scm" uses this.
-    ((#\;) (let skip-semi ()
-	     (cond ((eqv? #\; (peek-char port))
-		    (read-char port)
-		    (skip-semi))
-		   (else (require 'line-i/o)
-			 `(comment ,(read-line port))))))
-    ((#\?) (case (read port)
-	     ((line) (port-line port))
-	     ((column) (port-column port))
-	     ((file) (port-filename port))
-	     (else #f)))
-    (else (read:sharp c port read))))
-
-;;; We can assume TOK has at least 2 characters.
-(define char:sharp
-  (letrec ((numeric-1
-            (lambda (tok radix)
-              (numeric (substring tok 1 (string-length tok)) radix)))
-           (numeric
-            (lambda (tok radix)
-              (cond ((string->number tok radix) => integer->char))))
-           (compose
-	    (lambda (modifier tok)
-	      (and (char=? #\- (string-ref tok 1))
-		   (if (= 3 (string-length tok))
-		       (modifier (string-ref tok 2))
-		       (let ((c (char:sharp
-				 (substring tok 2 (string-length tok)))))
-			 (and c (modifier c)))))))
-	   (control
-	    (lambda (c)
-	      (and (char? c)
-		   (if (eqv? c #\?)
-		       (integer->char 127)
-		       (integer->char (logand #o237 (char->integer c)))))))
-	   (meta
-	    (lambda (c)
-	      (and (char? c)
-		   (integer->char (logior 128 (char->integer c)))))))
-    (lambda (tok)
-      (case (string-ref tok 0)
-        ((#\0 #\1 #\2 #\3 #\4 #\5 #\6 #\7) (numeric tok 8))
-        ((#\O #\o) (numeric-1 tok 8))
-        ((#\D #\d) (numeric-1 tok 10))
-        ((#\X #\x) (numeric-1 tok 16))
-	((#\C #\c) (compose control tok))
-	((#\^) (and (= 2 (string-length tok)) (control (string-ref tok 1))))
-	((#\M #\m) (compose meta tok))))))
-
-;;;; Function used to accumulate comments before a definition.
-(define comment
-  (let ((*accumulated-comments* '()))
-    (lambda args
-      (cond ((null? args)
-	     (let ((ans
-		    (apply string-append
-			   (map (lambda (comment)
-				  (string-append (or comment "") "\n"))
-				(reverse *accumulated-comments*)))))
-	       (set! *accumulated-comments* '())
-	       (if (equal? "" ans)
-		   "no-comment"		;#f
-		   (substring ans 0 (+ -1 (string-length ans))))))
-	    (else (set! *accumulated-comments*
-			(append (reverse args) *accumulated-comments*)))))))
-
-(define : ':)				;for /bin/sh hack.
-(define !#(if #f #f))			;for scsh hack.
-
-;;;; Here are some Revised^2 Scheme functions:
-(define 1+ (let ((+ +)) (lambda (n) (+ n 1))))
-(define -1+ (let ((+ +)) (lambda (n) (+ n -1))))
-(define 1- -1+)
-(define <? <)
-(define <=? <=)
-(define =? =)
-(define >? >)
-(define >=? >=)
-(define t #t)
-(define nil #f)
-(define identity cr)
-
-(cond ((defined? defsyntax)
-(defsyntax define-syntax (the-macro defsyntax)))
-      (else
-(define defsyntax define)
-(define the-macro identity)))
-(defsyntax sequence (the-macro begin))
-(define copy-tree @copy-tree)
-
-;;; VMS does something strange when output is sent to both
-;;; CURRENT-OUTPUT-PORT and CURRENT-ERROR-PORT.
-(case (software-type) ((VMS) (set-current-error-port (current-output-port))))
-
-;;; OPEN_READ, OPEN_WRITE, and OPEN_BOTH are used to request the proper
-;;; mode to open files in.  MS-DOS does carriage return - newline
-;;; translation if not opened in `b' mode.
-
-(define OPEN_READ (case (software-type)
-		    ((MS-DOS WINDOWS ATARIST) 'rb)
-		    (else 'r)))
-(define OPEN_WRITE (case (software-type)
-		     ((MS-DOS WINDOWS) 'wbc)
-		     ((ATARIST) 'wb)
-		     (else 'w)))
-(define OPEN_BOTH (case (software-type)
-		    ((MS-DOS WINDOWS) 'r+bc)
-		    ((ATARIST) 'r+b)
-		    (else 'r+)))
-(define ((make-moder str) mode)
-  (if (symbol? mode)
-      (string->symbol (string-append (symbol->string mode) str))
-      (string-append mode str)))
-(define _IONBF (make-moder "0"))
-(define _TRACKED (make-moder "?"))
-(define _EXCLUSIVE (make-moder "x"))
-
-(define could-not-open #f)
-
-(define (open-output-file str)
-  (or (open-file str OPEN_WRITE)
-      (and (procedure? could-not-open) (could-not-open) #f)
-      (error "OPEN-OUTPUT-FILE couldn't open file " str)))
-(define (open-input-file str)
-  (or (open-file str OPEN_READ)
-      (and (procedure? could-not-open) (could-not-open) #f)
-      (error "OPEN-INPUT-FILE couldn't open file " str)))
-
-(define (string-index str chr)
-  (define len (string-length str))
-  (do ((pos 0 (+ 1 pos)))
-      ((or (>= pos len) (char=? chr (string-ref str pos)))
-       (and (< pos len) pos))))
-
-(if (not (defined? try-create-file))
-(define (try-create-file str modes . perms)
-  (if (symbol? modes) (set! modes (symbol->string modes)))
-  (let ((idx (string-index modes #\x)))
-    (cond ((slib:in-catalog? 'i/o-extensions)
-	   (require 'i/o-extensions)
-	   (apply try-create-file str modes perms))
-	  ((not idx)
-	   (warn "not exclusive modes?" modes str)
-	   (try-open-file str modes))
-	  (else (set! modes (string-append (substring modes 0 idx)
-					   (substring modes (+ 1 idx)
-						      (string-length modes))))
-		(cond ((not (string-index modes #\w))
-		       (warn 'try-create-file "not writing?" modes str)
-		       (try-open-file str modes))
-		      (else
-		       (cond ((and (not (null? perms))
-				   (not (eqv? #o666 (car perms))))
-			      (warn "perms?" (car perms) str)))
-		       (cond ((file-exists? str) #f)
-			     (else (try-open-file str modes))))))))))
-
-(define close-input-port close-port)
-(define close-output-port close-port)
-
-(define (call-with-open-ports . ports)
-  (define proc (car ports))
-  (cond ((procedure? proc) (set! ports (cdr ports)))
-	(else (set! ports (reverse ports))
-	      (set! proc (car ports))
-	      (set! ports (reverse (cdr ports)))))
-  (let ((ans (apply proc ports)))
-    (for-each close-port ports)
-    ans))
-
-(define (call-with-input-file str proc)
-  (call-with-open-ports (open-input-file str) proc))
-
-(define (call-with-output-file str proc)
-  (call-with-open-ports (open-output-file str) proc))
-
-(define (with-input-from-port port thunk)
-  (dynamic-wind (lambda () (set! port (set-current-input-port port)))
-		thunk
-		(lambda () (set! port (set-current-input-port port)))))
-
-(define (with-output-to-port port thunk)
-  (dynamic-wind (lambda () (set! port (set-current-output-port port)))
-		thunk
-		(lambda () (set! port (set-current-output-port port)))))
-
-(define (with-error-to-port port thunk)
-  (dynamic-wind (lambda () (set! port (set-current-error-port port)))
-		thunk
-		(lambda () (set! port (set-current-error-port port)))))
-
-(define (with-input-from-file file thunk)
-  (let* ((nport (open-input-file file))
-	 (ans (with-input-from-port nport thunk)))
-    (close-port nport)
-    ans))
-
-(define (with-output-to-file file thunk)
-  (let* ((nport (open-output-file file))
-	 (ans (with-output-to-port nport thunk)))
-    (close-port nport)
-    ans))
-
-(define (with-error-to-file file thunk)
-  (let* ((nport (open-output-file file))
-	 (ans (with-error-to-port nport thunk)))
-    (close-port nport)
-    ans))
-
-(define (call-with-outputs thunk proc)
-  (define stdout #f)
-  (define stderr #f)
-  (define status #f)
-  (set! stdout
-	(call-with-output-string
-	 (lambda (stdout)
-	   (set! stderr
-		 (call-with-output-string
-		  (lambda (stderr)
-		    (call-with-current-continuation
-		     (lambda (escape)
-		       (dynamic-wind
-			   (lambda ()
-			     (set! status #f)
-			     (set! stdout (set-current-output-port stdout))
-			     (set! stderr (set-current-error-port stderr)))
-			   (lambda () (set! status (list (thunk))))
-			   (lambda ()
-			     (set! stdout (set-current-output-port stdout))
-			     (set! stderr (set-current-error-port stderr))
-			     (if (not status) (escape #f))))))))))))
-  (apply proc stdout stderr (or status '())))
-
-(define browse-url
-  (case (software-type)
-    ((UNIX COHERENT PLAN9)
-     (lambda (url)
-       (define (try cmd end) (zero? (system (string-append cmd url end))))
-       (or (try "netscape-remote -remote 'openURL(" ")'")
-	   (try "netscape -remote 'openURL(" ")'")
-	   (try "netscape '" "'&")
-	   (try "netscape '" "'"))))
-    (else
-     (lambda (url)
-       (slib:warn 'define (software-type) 'case 'of 'browse-url 'in
-		  *load-pathname*)))))
-
-(define (warn . args)
-  (define cep (current-error-port))
-  (if (defined? print-call-stack) (print-call-stack cep))
-  (perror "WARN")
-  (errno 0)
-  (display "WARN:" cep)
-  (for-each (lambda (x) (display #\  cep) (write x cep)) args)
-  (newline cep)
-  (force-output cep))
-
-(define (error . args)
-  (define cep (current-error-port))
-  (if (defined? print-call-stack) (print-call-stack cep))
-  (perror "ERROR")
-  (errno 0)
-  (display "ERROR:" cep)
-  (for-each (lambda (x) (display #\  cep) (write x cep)) args)
-  (newline cep)
-  (force-output cep)
-  (abort))
-
-(define set-errno errno)
-(define slib:exit quit)
-(define exit quit)
-
-(define (print . args)
-  (define result #f)
-  (for-each (lambda (x) (set! result x) (write x) (display #\ )) args)
-  (newline)
-  result)
-(define (pprint . args)
-  (define result #f)
-  (for-each (lambda (x) (set! result x) (pretty-print x)) args)
-  result)
-(define (pp . args)
-  (for-each pretty-print args)
-  (if #f #f))
-
-(if (not (defined? file-exists?))
-(define (file-exists? str)
-  (let ((port (open-file str OPEN_READ)))
-    (errno 0)
-    (and port (close-port port) #t))))
-(define (file-readable? str)
-  (let ((port (open-file str OPEN_READ)))
-    (errno 0)
-    (and port
-	 (char-ready? port)
-	 (do ((c (read-char port)
-		 (and (char-ready? port) (read-char port)))
-	      (i 0 (+ 1 i))
-	      (l '() (cons c l)))
-	     ((or (not c) (eof-object? c) (<= 2 i))
-	      (if (null? l) #f (list->string (reverse l))))))))
-
-(define difftime -)
-(define offset-time +)
-
-(if (not (defined? ed))
-(define (ed . args)
-  (system (apply string-append
-		 (or (getenv "EDITOR") "ed")
-		 (map (lambda (s) (string-append " " s)) args)))))
-
-(if (not (defined? output-port-width))
-(define (output-port-width . arg) 80))
-
-(if (not (defined? output-port-height))
-(define (output-port-height . arg) 24))
-
-(if (not (defined? last-pair))
-(define (last-pair l) (if (pair? (cdr l)) (last-pair (cdr l)) l)))
-
-(define slib:error error)
-(define slib:warn warn)
-(define slib:tab #\tab)
-(define slib:form-feed #\page)
-(define slib:eval eval)
-
-(define (make-exchanger . pair) (lambda (rep) (swap-car! pair rep)))
-
-;;;; Load.
-(define load:indent 0)
-(define (load:pre file)
-  (define cep (current-error-port))
-  (cond ((> (verbose) 1)
-	 (display
-	  (string-append ";" (make-string load:indent #\ ) "loading " file)
-	  cep)
-	 (set! load:indent (modulo (+ 2 load:indent) 16))
-	 (newline cep)))
-  (force-output cep))
-
-(define (load:post filesuf)
-  (define cep (current-error-port))
-  (errno 0)
-  (cond ((> (verbose) 1)
-	 (set! load:indent (modulo (+ -2 load:indent) 16))
-	 (display (string-append ";" (make-string load:indent #\ )
-				 "done loading " filesuf)
-		  cep)
-	 (newline cep)
-	 (force-output cep))))
-
-;;; Here for backward compatibility
-(define scheme-file-suffix
-  (case (software-type)
-    ((NOSVE) (lambda () "_scm"))
-    (else (lambda () ".scm"))))
-
-(define (has-suffix? str suffix)
-  (let ((sufl (string-length suffix))
-	(sl (string-length str)))
-    (and (> sl sufl)
-	 (string=? (substring str (- sl sufl) sl) suffix))))
-
-(define *load-reader* #f)
-(define (scm:load file . libs)
-  (define filesuf file)
-  (define hss (has-suffix? file (scheme-file-suffix)))
-  (load:pre file)
-  (or (and (defined? link:link) (not hss)
-	   (or (let ((s2 (file-readable? file)))
-		 (and s2 (not (equal? "#!" s2)) (apply link:link file libs)))
-	       (and link:able-suffix
-		    (let* ((fs (string-append file link:able-suffix))
-			   (fs2 (file-readable? fs)))
-		      (and fs2 (apply link:link fs libs) (set! filesuf fs) #t)
-		      ))))
-      (and (null? libs) (try-load file *load-reader*))
-      ;;HERE is where the suffix gets specified
-      (and (not hss) (errno 0)		; clean up error from TRY-LOAD above
-	   (set! filesuf (string-append file (scheme-file-suffix)))
-	   (try-load filesuf *load-reader*))
-      (and (procedure? could-not-open) (could-not-open) #f)
-      (begin (set! load:indent 0)
-	     (error "LOAD couldn't find file " file)))
-  (load:post filesuf))
-(define load scm:load)
-(define slib:load load)
-
-(define (scm:load-source file)
-  (define sfs (scheme-file-suffix))
-  (define filesuf file)
-  (load:pre file)
-  (or (and (or (try-load file *load-reader*)
-	       ;;HERE is where the suffix gets specified
-	       (and (not (has-suffix? file sfs))
-		    (begin (set! filesuf (string-append file sfs))
-			   (try-load filesuf *load-reader*)))))
-      (and (procedure? could-not-open) (could-not-open) #f)
-      (error "LOAD couldn't find file " file))
-  (load:post filesuf))
-(define slib:load-source scm:load-source)
-
-;;; This is the vicinity where this file resides.
-(define implementation-vicinity #f)
-
-;;; (library-vicinity) should be defined to be the pathname of the
-;;; directory where files of Scheme library functions reside.
-(define library-vicinity #f)
-
-;;; (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 #f)
-
-(define (login->home-directory login)
-  (cond ((defined? getpw)
-	 (let ((pwvect (getpw login)))
-	   (and pwvect (vector-ref pwvect 5))))
-	((not (file-exists? "/etc/passwd")) #f)
-	(else
-	 (call-with-input-file "/etc/passwd"
-	   (lambda (iprt)
-	     (require 'string-search)
-	     (require 'line-i/o)
-	     (let tryline ()
-	       (define line (read-line iprt))
-	       (define (get-field)
-		 (define idx (string-index line #\:))
-		 (and idx
-		      (let ((fld (substring line 0 idx)))
-			(set! line (substring line (+ 1 idx)
-					      (string-length line)))
-			fld)))
-	       (cond ((eof-object? line) #f)
-		     ((string-index line #\:)
-		      => (lambda (idx)
-			   (define name (substring line 0 idx))
-			   (cond ((equal? login name)
-				  (do ((ans (get-field) (get-field))
-				       (cnt 4 (+ -1 cnt)))
-				      ((or (negative? cnt) (not ans)) ans)))
-				 (else (tryline))))))))))))
-
-(define (getlogin) (or (getenv "USER") (getenv "LOGNAME")))
-
-;;; If the environment variable SCHEME_LIBRARY_PATH is undefined, use
-;;; (implementation-vicinity) as (library-vicinity).  "require.scm",
-;;; the first file loaded from (library-vicinity), can redirect it.
-(define (set-vicinities! init-file)
-  (set! implementation-vicinity
-	(let ((vic (substring
-		    init-file
-		    0
-		    (- (string-length init-file)
-		       (string-length "Init.scm")
-		       (string-length (scheme-implementation-version))))))
-	  (lambda () vic)))
-  (let ((library-path (getenv "SCHEME_LIBRARY_PATH")))
-    (if library-path
-	(set! library-vicinity (lambda () library-path))
-	(let ((filename (in-vicinity (implementation-vicinity) "require.scm")))
-	  (or (try-load filename)
-	      (try-load (in-vicinity (implementation-vicinity) "requires.scm"))
-	      (error "Can't load" filename))
-	  (if (not library-vicinity) (error "Can't find library-vicinity")))))
-  (set! home-vicinity
-	(let ((home (getenv "HOME")))
-	  (and (not home) login->home-directory
-	       (let ((login (getlogin)))
-		 (and login (set! home (login->home-directory login)))))
-	  (and home
-	       (case (software-type)
-		 ((UNIX COHERENT PLAN9 MS-DOS) ;V7 unix has a / on HOME
-		  (if (not
-		       (eqv? #\/ (string-ref home (+ -1 (string-length home)))))
-		      (set! home (string-append home "/"))))))
-	  (lambda () home))))
-;;; SET-VICINITIES! is also called from BOOT-TAIL
-(set-vicinities! *load-pathname*)
-
-;;;; Initialize SLIB
-(load (in-vicinity (library-vicinity) "require"))
-
-;;; This enables line-numbering for SLIB loads.
-(define *slib-load-reader* (and (defined? read-numbered) read-numbered))
-
-;;; DO NOT MOVE!  SLIB:LOAD-SOURCE and SLIB:LOAD must be defined after
-;;; "require.scm" is loaded.
-(define (slib:load-source file . libs)
-  (fluid-let ((*load-reader* *slib-load-reader*))
-    (apply scm:load file libs)))
-(define slib:load slib:load-source)
-
-;;; Legacy grease
-(if (not (defined? slib:in-catalog?))
-    (define slib:in-catalog? require:feature->path))
-
-;;; Dynamic link-loading
-(cond ((or (defined? dyn:link)
-	   (defined? vms:dynamic-link-call))
-       (load (in-vicinity (implementation-vicinity) "Link"))))
-
-(cond ((defined? link:link)
-(define (slib:load-compiled . args)
-  (cond ((symbol? (car args))
-	 (require (car args))
-	 (apply slib:load-compiled (cdr args)))
-	((apply link:link args))
-	(else (error "Couldn't link files " args))))
-(provide 'compiled)))
-
-;;; Complete the function set for feature STRING-CASE.
-(cond
- ((defined? string-upcase!)
-(define (string-upcase str) (string-upcase! (string-copy str)))
-(define (string-downcase str) (string-downcase! (string-copy str)))
-(define (string-capitalize str) (string-capitalize! (string-copy str)))
-(define string-ci->symbol
-  (let ((s2cis (if (equal? "x" (symbol->string 'x))
-		   string-downcase string-upcase)))
-    (lambda (str) (string->symbol (s2cis str)))))
-(define symbol-append
-  (let ((s2cis (if (equal? "x" (symbol->string 'x))
-		   string-downcase string-upcase)))
-    (lambda args
-      (string->symbol
-       (apply string-append
-	      (map
-	       (lambda (obj)
-		 (cond ((char? obj) (string obj))
-		       ((string? obj) (s2cis obj))
-		       ((number? obj) (s2cis (number->string obj)))
-		       ((symbol? obj) (symbol->string obj))
-		       ((not obj) "")
-		       (else (error 'wrong-type-to 'symbol-append obj))))
-	       args))))))
-(define (StudlyCapsExpand nstr . delimitr)
-  (set! delimitr
-	(cond ((null? delimitr) "-")
-	      ((char? (car delimitr)) (string (car delimitr)))
-	      (else (car delimitr))))
-  (do ((idx (+ -1 (string-length nstr)) (+ -1 idx)))
-      ((> 1 idx) nstr)
-    (cond ((and (> idx 1)
-		(char-upper-case? (string-ref nstr (+ -1 idx)))
-		(char-lower-case? (string-ref nstr idx)))
-	   (set! nstr
-		 (string-append (substring nstr 0 (+ -1 idx))
-				delimitr
-				(substring nstr (+ -1 idx)
-					   (string-length nstr)))))
-	  ((and (char-lower-case? (string-ref nstr (+ -1 idx)))
-		(char-upper-case? (string-ref nstr idx)))
-	   (set! nstr
-		 (string-append (substring nstr 0 idx)
-				delimitr
-				(substring nstr idx
-					   (string-length nstr))))))))
-(provide 'string-case)))
-
-;;;; Bit order and lamination
-
-;;(define (logical:ones deg) (lognot (ash -1 deg)))
-
-;;; New with SRFI-60
-(define (rotate-bit-field n count start end)
-  (define width (- end start))
-  (set! count (modulo count width))
-  (let ((mask (lognot (ash -1 width))))
-    (define azn (logand mask (arithmetic-shift n (- start))))
-    (logior (arithmetic-shift
-	     (logior (logand mask (arithmetic-shift azn count))
-		     (arithmetic-shift azn (- count width)))
-	     start)
-	    (logand (lognot (ash mask start)) n))))
-;;; Legacy
-;;(define (logical:rotate k count len) (rotate-bit-field k count 0 len))
-
-(define (log2-binary-factors n)
-  (+ -1 (integer-length (logand n (- n)))))
-
-(define (bit-reverse k n)
-  (do ((m (if (negative? n) (lognot n) n) (arithmetic-shift m -1))
-       (k (+ -1 k) (+ -1 k))
-       (rvs 0 (logior (arithmetic-shift rvs 1) (logand 1 m))))
-      ((negative? k) (if (negative? n) (lognot rvs) rvs))))
-(define (reverse-bit-field n start end)
-  (define width (- end start))
-  (let ((mask (lognot (ash -1 width))))
-    (define zn (logand mask (arithmetic-shift n (- start))))
-    (logior (arithmetic-shift (bit-reverse width zn) start)
-	    (logand (lognot (ash mask start)) n))))
-
-(define (integer->list k . len)
-  (if (null? len)
-      (do ((k k (arithmetic-shift k -1))
-	   (lst '() (cons (odd? k) lst)))
-	  ((<= k 0) lst))
-      (do ((idx (+ -1 (car len)) (+ -1 idx))
-	   (k k (arithmetic-shift k -1))
-	   (lst '() (cons (odd? k) lst)))
-	  ((negative? idx) lst))))
-
-(define (list->integer bools)
-  (do ((bs bools (cdr bs))
-       (acc 0 (+ acc acc (if (car bs) 1 0))))
-      ((null? bs) acc)))
-(define (booleans->integer . bools)
-  (list->integer bools))
-
-;;;; SRFI-60 aliases
-(define arithmetic-shift ash)
-(define bitwise-ior logior)
-(define bitwise-xor logxor)
-(define bitwise-and logand)
-(define bitwise-not lognot)
-;;(define bit-count logcount)		;Aliases bit-vector function
-(define bit-set?   logbit?)
-(define any-bits-set? logtest)
-(define first-set-bit log2-binary-factors)
-(define bitwise-merge bitwise-if)
-
-(define @case-aux
-  (let ((integer-jump-table 1)
-	(char-jump-table 2))
-    (lambda (keys actions else-action)
-      (let ((n (length keys)))
-	(define (every-key pred)
-	  (let test ((keys keys))
-	    (or (null? keys)
-		(and (pred (car keys)) (test (cdr keys))))))
-	(define (jump-table keys)
-	  (let ((minkey (apply min keys))
-		(maxkey (apply max keys)))
-	    (and (< (- maxkey minkey) (* 4 n))
-		 (let ((actv (make-vector
-			      (+ 2 (- maxkey minkey)) else-action)))
-		   (for-each
-		    (lambda (key action)
-		      (vector-set! actv (+ 1 (- key minkey)) action))
-		    keys actions)
-		   (list integer-jump-table minkey actv)))))
-	(cond ((< n 5) #f)
-	      ((every-key integer?)
-	       (jump-table keys))
-	      ((every-key char?)
-	       (let* ((int-keys (map char->integer keys)))
-		 (cond ((jump-table int-keys) =>
-			(lambda (x)
-			  (cons char-jump-table
-				(cons (integer->char (cadr x))
-				      (cddr x)))))
-		       (else #f)))))))))
-
-;;;defmacro from dorai@cs.rice.edu (heavily hacked by jaffer):
-(define *defmacros* '())
-(define (defmacro? m) (and (assq m *defmacros*) #t))
-
-(define defmacro:transformer
-  (lambda (f)
-    (procedure->memoizing-macro
-     (lambda (exp env)
-       (@copy-tree (apply f (remove-line-numbers! (cdr exp))))))))
-
-(define defmacro:get-destructuring-bind-pairs
-  (lambda (s e)
-    (let loop ((s s) (e e) (r '()))
-      (cond ((pair? s)
-	     (loop (car s) `(car ,e)
-		   (loop (cdr s) `(cdr ,e) r)))
-	    ((null? s) r)
-	    ((symbol? s) (cons `(,s ,e) r))
-	    (else (error 'destructuring-bind "illegal syntax"))))))
-
-(defsyntax destructuring-bind
-  (let ((destructuring-bind-transformer
-	 (lambda (s x . ff)
-	   (let ((tmp (gentemp)))
-	     `(let ((,tmp ,x))
-		(let ,(defmacro:get-destructuring-bind-pairs s tmp)
-		  ,@ff))))))
-    (set! *defmacros*
-	  (acons 'destructuring-bind
-		 destructuring-bind-transformer *defmacros*))
-    (defmacro:transformer destructuring-bind-transformer)))
-
-(defsyntax defmacro:simple-defmacro
-  (let ((defmacro-transformer
-	  (lambda (name parms . body)
-	    `(defsyntax ,name
-	       (let ((transformer (lambda ,parms ,@body)))
-		 (set! *defmacros* (acons ',name transformer *defmacros*))
-		 (defmacro:transformer transformer))))))
-    (set! *defmacros* (acons 'defmacro defmacro-transformer *defmacros*))
-    (defmacro:transformer defmacro-transformer)))
-
-(defmacro:simple-defmacro defmacro (name . body)
-  (define (expn name pattern body)
-    (let ((args (gentemp)))
-      `(defmacro:simple-defmacro ,name ,args
-	 (destructuring-bind ,pattern ,args ,@body))))
-  (if (pair? name)
-      (expn (car name) (cdr name) body)
-      (expn name (car body) (cdr body))))
-
-(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 "scm:G" (number->string *gensym-counter*))))))
-
-(define defmacro:eval slib:eval)
-(define defmacro:load load)
-;; slib:eval-load definition moved to "slib/require.scm"
-
-;;;; Autoloads for SLIB procedures.
-
-(define (trace-all . args) (require 'debug) (apply trace-all args))
-(define (track-all . args) (require 'debug) (apply track-all args))
-(define (stack-all . args) (require 'debug) (apply stack-all args))
-(define (break-all . args) (require 'debug) (apply break-all args))
-(define (pretty-print . args) (require 'pretty-print) (apply pretty-print args))
-
-;;; (require 'transcript) would get us SLIB transcript -- not what we want.
-(define (transcript-on arg)
-  (load (in-vicinity (implementation-vicinity)
-		     (string-append "Tscript" (scheme-file-suffix))))
-  (transcript-on arg))
-(define (transcript-off)
-  (error "No transcript active"))
-
-;;;; Macros.
-
-;;; Trace gets re-defmacroed when tracef autoloads.
-(defmacro trace x (cond ((null? x) '()) (else (require 'trace) `(trace ,@x))))
-(defmacro track x (cond ((null? x) '()) (else (require 'track) `(track ,@x))))
-(defmacro stack x (cond ((null? x) '()) (else (require 'stack) `(stack ,@x))))
-(defmacro break x (cond ((null? x) '()) (else (require 'break) `(break ,@x))))
-
-(defmacro defvar (var val)
-  `(if (not (defined? ,var)) (define ,var ,val)))
-(defmacro defconst (name value)
-  (cond ((list? name) `(defconst ,(car name) (lambda ,(cdr name) ,value)))
-	(else (cond ((not (slib:eval `(defined? ,name))))
-		    ((and (symbol? name) (equal? (slib:eval value)
-						 (slib:eval name))))
-		    (else (error 'trying-to-defconst name
-				 'to-different-value value)))
-	      `(define ,name ,value))))
-(defmacro qase (key . clauses)
-  `(case ,key
-     ,@(map (lambda (clause)
-	      (if (list? (car clause))
-		  (cons (apply
-			 append
-			 (map (lambda (elt)
-				(case elt
-				  ((unquote) '(unquote))
-				  ((unquote-splicing) '(unquote-splicing))
-				  (else
-				   (eval (list 'quasiquote (list elt))))))
-			      (car clause)))
-			(cdr clause))
-		  clause))
-	    clauses)))
-(defmacro (casev . args) `(qase ,@args))
-
-(defmacro fluid-let (clauses . body)
-  (let ((ids (map car clauses))
-	(temp (gentemp))
-	(swap (gentemp)))
-    `(let* ((,temp (list ,@(map cadr clauses)))
-	    (,swap (lambda () (set! ,temp (set! ,ids ,temp)))))
-       (dynamic-wind
-	   ,swap
-	   (lambda () ,@body)
-	   ,swap))))
-
-(define (scm:print-binding sexp frame)
-  (cond ((not (null? (cdr sexp)))
-	 (display "In")
-	 (for-each (lambda (exp) (display #\ ) (display exp)) (cdr sexp))
-	 (display ": ")))
-  (do ((vars (car frame) (cdr vars))
-       (vals (cdr frame) (cdr vals)))
-      ((not (pair? vars))
-       (cond ((not (null? vars)) (write vars)
-	      (display " := ") (write (car vals))))
-       (newline))
-    (write (car vars)) (display " = ") (write (car vals)) (display "; ")))
-
-(define print-args
-  (procedure->memoizing-macro
-   (lambda (sexp env)
-     (define (fix-list frm)
-       (cond ((pair? frm) (cons (car frm) (fix-list (cdr frm))))
-	     ((null? frm) '())
-	     ((symbol? frm) (list frm))
-	     (else '())))
-     (define frm (car env))
-     `(scm:print-binding
-       ',sexp
-       ,(cond ((symbol? frm) `(list ',frm ,frm))
-	      ((list? frm) `(list ',frm ,@frm))
-	      ((pair? frm)
-	       (let ((jlp (fix-list frm)))
-		 `(list ',(if (symbol? (cdr (last-pair frm))) frm jlp)
-			,@jlp))))))))
-
-(cond
- ((defined? stack-trace)
-
-;;#+breakpoint-error;; remove line to enable breakpointing on calls to ERROR
-(define error
-  (letrec ((oerror error)
-           (nerror
-            (lambda args
-              (dynamic-wind
-                  (lambda () (set! error oerror))
-                  (lambda ()
-                    (define cep (current-error-port))
-                    (if (defined? print-call-stack)
-                        (print-call-stack cep))
-                    (perror "ERROR")
-                    (errno 0)
-                    (display "ERROR: " cep)
-                    (if (not (null? args))
-                        (begin (display (car args) cep)
-                               (for-each (lambda (x) (display #\  cep) (write x cep))
-                                         (cdr args))))
-                    (newline cep)
-                    (cond ((stack-trace) (newline cep)))
-                    (display " * Breakpoint established: (continue <val>) to return." cep)
-                    (newline cep) (force-output cep)
-                    (require 'debug) (apply breakpoint args))
-                  (lambda () (set! error nerror))))))
-    nerror))
-
-(define (user-interrupt . args)
-  (define cep (current-error-port))
-  (newline cep)
-  (if (defined? print-call-stack)
-      (print-call-stack cep))
-  (display "ERROR: user interrupt" cep)
-  (newline cep)
-  (cond ((stack-trace) (newline cep)))
-  (display " * Breakpoint established: (continue <val>) to return." cep)
-  (newline cep) (force-output cep)
-  (require 'debug) (apply breakpoint args))
-  ))
-
-;;; ABS and MAGNITUDE can be the same.
-(cond ((and (inexact? (string->number "0.0")) (not (defined? exp)))
-       (or (and (defined? usr:lib)
-		(usr:lib "m")
-		(load (in-vicinity (implementation-vicinity) "Transcen")
-		      (usr:lib "m")))
-	   (load (in-vicinity (implementation-vicinity) "Transcen")))
-       (set! abs magnitude))
-      (else
-       (define (infinite? z) #f)
-       (define finite? number?)
-       (define inexact->exact identity)
-       (define exact->inexact identity)
-       (define expt integer-expt)))
-
-(define (numerator q)
-  (if (not (rational? q)) (error 'numerator q))
-  (do ((num q (* 2 num)))
-      ((integer? num) num)))
-
-(define (denominator q)
-  (if (not (rational? q)) (error 'denominator q))
-  (do ((num q (* 2 num))
-       (den (- q q -1) (* 2 den)))
-      ((integer? num) den)))
-
-(if (defined? array?)
-(begin
-
-(define (array-null? array)
-  (zero? (apply * (map (lambda (bnd) (- 1 (apply - bnd)))
-		       (array-shape array)))))
-(define (create-array prot . args)
-  (if (array-null? prot)
-      (dimensions->uniform-array args (array-prototype prot))
-      (dimensions->uniform-array args (array-prototype prot)
-				 (apply array-ref prot
-					(map car (array-shape prot))))))
-(define make-array create-array)
-(define (list->array rank proto lst)
-  (list->uniform-array rank (array-prototype proto) lst))
-(define (vector->array vect prototype . dimensions)
-  (define vdx (vector-length vect))
-  (if (not (eqv? vdx (apply * dimensions)))
-      (slib:error 'vector->array vdx '<> (cons '* dimensions)))
-  (let ((ra (apply make-array prototype dimensions)))
-    (define (v2ra dims idxs)
-      (cond ((null? dims)
-	     (set! vdx (+ -1 vdx))
-	     (apply array-set! ra (vector-ref vect vdx) (reverse idxs)))
-	    (else
-	     (do ((idx (+ -1 (car dims)) (+ -1 idx)))
-		 ((negative? idx) vect)
-	       (v2ra (cdr dims) (cons idx idxs))))))
-    (v2ra dimensions '())
-    ra))
-(define (array->vector ra)
-  (define dims (array-dimensions ra))
-  (let* ((vdx (apply * dims))
-	 (vect (make-vector vdx)))
-    (define (ra2v dims idxs)
-      (if (null? dims)
-	  (let ((val (apply array-ref ra (reverse idxs))))
-	    (set! vdx (+ -1 vdx))
-	    (vector-set! vect vdx val)
-	    vect)
-	  (do ((idx (+ -1 (car dims)) (+ -1 idx)))
-	      ((negative? idx) vect)
-	    (ra2v (cdr dims) (cons idx idxs)))))
-    (ra2v dims '())))
-(define (make-uniform-wrapper prot)
-  (if (string? prot) (set! prot (string->number prot)))
-  (if prot
-      (lambda opt (if (null? opt)
-		      (list->uniform-array 1 prot '())
-		      (list->uniform-array 0 prot (car opt))))
-      vector))
-(define Ac64 (make-uniform-wrapper "+64i"))
-(define Ac32 (make-uniform-wrapper "+32i"))
-(define Ar64 (make-uniform-wrapper "64."))
-(define Ar32 (make-uniform-wrapper "32."))
-(define As64 (make-uniform-wrapper -64))
-(define As32 (make-uniform-wrapper -32))
-(define As16 (make-uniform-wrapper -16))
-(define As8  (make-uniform-wrapper -8))
-(define Au64 (make-uniform-wrapper  64))
-(define Au32 (make-uniform-wrapper  32))
-(define Au16 (make-uniform-wrapper  16))
-(define Au8  (make-uniform-wrapper  8))
-(define At1  (make-uniform-wrapper  #t))
-
-;;; New SRFI-58 names
-;; flonums
-(define A:floC128b ac64)
-(define A:floC64b ac64)
-(define A:floC32b ac32)
-(define A:floC16b ac32)
-(define A:floR128b ar64)
-(define A:floR64b ar64)
-(define A:floR32b ar32)
-(define A:floR16b ar32)
-;; decimal flonums
-(define A:floQ128d ar64)
-(define A:floQ64d ar64)
-(define A:floQ32d ar32)
-;; fixnums
-(define A:fixZ64b as64)
-(define A:fixZ32b as32)
-(define A:fixZ16b as16)
-(define A:fixZ8b  as8)
-(define A:fixN64b au64)
-(define A:fixN32b au32)
-(define A:fixN16b au16)
-(define A:fixN8b  au8)
-(define A:bool    at1)
-
-(define (array-shape a)
-  (let ((dims (array-dimensions a)))
-    (if (pair? dims)
-	(map (lambda (ind) (if (number? ind) (list 0 (+ -1 ind)) ind))
-	     dims)
-	dims)))
-(define array=? equal?)
-(provide 'srfi-47)
-(provide 'srfi-58)
-(provide 'srfi-63)
-))
-
-(define (alarm-interrupt) (alarm 0))
-(if (defined? setitimer)
-    (begin
-      (define profile-alarm #f)
-      (define (profile-alarm-interrupt) (profile-alarm 0))
-      (define virtual-alarm #f)
-      (define (virtual-alarm-interrupt) (virtual-alarm 0))
-      (define milli-alarm #f)
-      (let ((make-alarm
-	     (lambda (sym)
-	       (and (setitimer sym 0 0)	;DJGPP supports only REAL and PROFILE
-		    (lambda (value . interval)
-		      (cadr
-		       (setitimer sym value
-				  (if (pair? interval) (car interval) 0))))))))
-	(set! profile-alarm (make-alarm 'profile))
-	(set! virtual-alarm (make-alarm 'virtual))
-	(set! milli-alarm (make-alarm 'real)))))
-
-;;;; Initialize statically linked add-ons
-(cond ((defined? scm_init_extensions)
-       (scm_init_extensions)
-       (set! scm_init_extensions #f)))
-
-;;; Use *argv* instead of (program-arguments), to allow option
-;;; processing to be done on it.  "ScmInit.scm" must
-;;;	(set! *argv* (program-arguments))
-;;; if it wants to alter the arguments which BOOT-TAIL processes.
-(define *argv* #f)
-
-(if (not (defined? *syntax-rules*))
-    (define *syntax-rules* #f))
-(if (not (defined? *interactive*))
-    (define *interactive* #f))
-
-(define (boot-tail dumped?)
-  (cond ((not *argv*)
-	 (set! *argv* (program-arguments))
-	 (cond (dumped?
-		(set-vicinities! dumped?)
-		(verbose (if (and (isatty? (current-input-port))
-				  (isatty? (current-output-port)))
-			     (if (<= (length *argv*) 1) 2 1)
-			     0))))
-	 (cond ((provided? 'getopt)
-		(set! *optind* 1)
-		(set! *optarg* #f)))))
-
-;;; This loads the user's initialization file, or files named in
-;;; program arguments.
-  (or (eq? (software-type) 'THINKC)
-      (member "-no-init-file" (program-arguments))
-      (member "--no-init-file" (program-arguments))
-      (try-load (in-vicinity (or (home-vicinity) (user-vicinity))
-			     (string-append "ScmInit") (scheme-file-suffix))
-		*load-reader*)
-      (errno 0))
-
-  ;; Include line numbers in loaded code.
-  (if (defined? read-numbered)
-      (set! *load-reader* read-numbered))
-
-  (cond
-   ((and (> (length *argv*) 1) (char=? #\- (string-ref (cadr *argv*) 0)))
-    (require 'getopt)
-;;; (else
-;;;  (define *optind* 1)
-;;;  (define getopt:opt #f)
-;;;  (define (getopt optstring) #f))
-
-    (let* ((simple-opts "muvqibs")
-	   (arg-opts '("a kbytes" "-version" "-help"
-		       "no-init-file" "-no-init-file" "p number"
-		       "h feature" "r feature" "d filename"
-		       "f filename" "l filename"
-		       "c string" "e string" "o filename"))
-	   (opts (apply string-append ":" simple-opts
-			(map (lambda (o)
-			       (string-append (string (string-ref o 0)) ":"))
-			     arg-opts)))
-	   (didsomething #f)
-	   (moreopts #t)
-	   (exe-name (symbol->string (scheme-implementation-type)))
-	   (up-name (apply string (map char-upcase (string->list exe-name)))))
-
-      (define (do-thunk thunk)
-	(if *interactive*
-	    (thunk)
-	    (let ((complete #f))
-	      (dynamic-wind
-		  (lambda () #f)
-		  (lambda ()
-		    (thunk)
-		    (set! complete #t))
-		  (lambda ()
-		    (if (not complete) (close-port (current-input-port))))))))
-
-      (define (do-string-arg)
-	(require 'string-port)
-	(do-thunk
-	 (lambda ()
-	   ((if *syntax-rules* macro:eval eval)
-	    (call-with-input-string
-		(string-append "(begin " *optarg* ")")
-	      read))))
-	(set! didsomething #t))
-
-      (define (do-load file)
-	(do-thunk
-	 (lambda ()
-	   (cond (*syntax-rules* (require 'macro) (macro:load file))
-		 (else (load file)))))
-	(set! didsomething #t))
-
-      (define (usage preopt opt postopt success?)
-	(define cep (if success? (current-output-port) (current-error-port)))
-	(define indent (make-string 6 #\ ))
-	(define i 3)
-	(cond ((char? opt) (set! opt (string opt)))
-	      ;;((symbol? opt) (set! opt (symbol->string opt)))
-	      )
-	(display (string-append preopt opt postopt) cep)
-	(newline cep)
-	(display (string-append "Usage: "
-				exe-name
-				" [-a kbytes] [-" simple-opts "]") cep)
-	(for-each
-	 (lambda (o)
-	   (display (string-append " [-" o "]") cep)
-	   (set! i (+ 1 i))
-	   (cond ((zero? (modulo i 5)) (newline cep) (display indent cep))))
-	 (cdr arg-opts))
-	(display " [-- | -s | -] [file] [args...]" cep) (newline cep)
-	(if success? (display success? cep) (quit #f)))
-
-      ;; -a int => ignore (handled by scm_init_from_argv)
-      ;; -c str => (eval str)
-      ;; -e str => (eval str)
-      ;; -d str => (require 'databases) (open-database str)
-      ;; -f str => (load str)
-      ;; -l str => (load str)
-      ;; -r sym => (require sym)
-      ;; -h sym => (provide sym)
-      ;; -o str => (dump str)
-      ;; -p int => (verbose int)
-      ;; -m     => (set! *syntax-rules* #t)
-      ;; -u     => (set! *syntax-rules* #f)
-      ;; -v     => (verbose 3)
-      ;; -q     => (verbose 0)
-      ;; -i     => (set! *interactive* #t)
-      ;; -b     => (set! *interactive* #f)
-      ;; -s     => set argv, don't execute first one
-      ;; -no-init-file => don't load init file
-      ;; --no-init-file => don't load init file
-      ;; --help => print and exit
-      ;; --version => print and exit
-      ;; --     => last option
-
-      (let loop ((option (getopt-- opts)))
-	(case option
-	  ((#\a)
-	   (cond ((> *optind* 3)
-		  (usage "scm: option `-" getopt:opt "' must be first" #f))
-		 ((or (not (exact? (string->number *optarg*)))
-		      (not (<= 1 (string->number *optarg*) 10000)))
-		  ;;	This size limit should match scm.c ^^
-		  (usage "scm: option `-" getopt:opt
-			 (string-append *optarg* "' unreasonable") #f))))
-	  ((#\e #\c) (do-string-arg))	;sh-like
-	  ((#\f #\l) (do-load *optarg*)) ;(set-car! *argv* *optarg*)
-	  ((#\d) (require 'databases)
-	   (open-database *optarg*))
-	  ((#\o) (require 'dump)
-	   (if (< *optind* (length *argv*))
-	       (dump *optarg* #t)
-	       (dump *optarg*)))
-	  ((#\r) (do-thunk (lambda ()
-			     (if (and (= 1 (string-length *optarg*))
-				      (char-numeric? (string-ref *optarg* 0)))
-				 (case (string-ref *optarg* 0)
-				   ((#\2) (require 'r2rs))
-				   ((#\3) (require 'r3rs))
-				   ((#\4) (require 'r4rs))
-				   ((#\5) (require 'r5rs)
-				    (set! *syntax-rules* #t))
-				   (else (require (string->symbol *optarg*))))
-				 (require (string->symbol *optarg*))))))
-	  ((#\h) (do-thunk (lambda () (provide (string->symbol *optarg*)))))
-	  ((#\p) (verbose (string->number *optarg*)))
-	  ((#\q) (verbose 0))
-	  ((#\v) (verbose 3))
-	  ((#\i) (set! *interactive* #t) ;sh-like
-	   (verbose (max 2 (verbose))))
-	  ((#\b) (set! didsomething #t)
-	   (set! *interactive* #f))
-	  ((#\s) (set! moreopts #f)	;sh-like
-	   (set! didsomething #t)
-	   (set! *interactive* #t))
-	  ((#\m) (set! *syntax-rules* #t))
-	  ((#\u) (set! *syntax-rules* #f))
-	  ((#\n) (if (not (string=? "o-init-file" *optarg*))
-		     (usage "scm: unrecognized option `-n" *optarg* "'" #f)))
-	  ((#\:) (usage "scm: option `-" getopt:opt "' requires an argument" #f))
-	  ((#\?) (usage "scm: unrecognized option `-" getopt:opt "'" #f))
-	  ((#f) (set! moreopts #f)	;sh-like
-	   (cond ((and (< *optind* (length *argv*))
-		       (string=? "-" (list-ref *argv* *optind*)))
-		  (set! *optind* (+ 1 *optind*)))))
-	  (else
-	   (or (cond ((not (string? option)) #f)
-		     ((string-ci=? "no-init-file" option))
-		     ((string-ci=? "version" option)
-		      (display
-		       (string-append exe-name " "
-				      (scheme-implementation-version)
-				      "
-Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
-"
-				      up-name
-				      " may be distributed under the terms of"
-				      " the GNU General Public Licence;
-certain other uses are permitted as well."
-				      " For details, see the file `COPYING',
-which is included in the "
-				      up-name " distribution.
-There is no warranty, to the extent permitted by law.
-"
-				      ))
-		      (cond ((execpath) =>
-			     (lambda (path)
-			       (display " This executable was loaded from ")
-			       (write path)
-			       (newline))))
-		      (quit #t))
-		     ((string-ci=? "help" option)
-		      (usage "This is "
-			     up-name
-			     ", a Scheme interpreter."
-			     (let ((sihp (scheme-implementation-home-page)))
-			       (if sihp
-				   (string-append "Latest info: " sihp "
-")
-				   "")))
-		      (quit #t))
-		     (else #f))
-	       (usage "scm: unknown option `--" option "'" #f))))
-
-	(cond ((and moreopts (< *optind* (length *argv*)))
-	       (loop (getopt-- opts)))
-	      ((< *optind* (length *argv*)) ;No more opts
-	       (set! *argv* (list-tail *argv* *optind*))
-	       (set! *optind* 1)
-	       (cond ((and (not didsomething) *script*)
-		      (do-load *script*)
-		      (set! *optind* (+ 1 *optind*))))
-	       (cond ((and (> (verbose) 2)
-			   (not (= (+ -1 *optind*) (length *argv*))))
-		      (display "scm: extra command arguments unused:"
-			       (current-error-port))
-		      (for-each (lambda (x) (display (string-append " " x)
-						     (current-error-port)))
-				(list-tail *argv* (+ -1 *optind*)))
-		      (newline (current-error-port)))))
-	      ((and (not didsomething) (= *optind* (length *argv*)))
-	       (set! *interactive* #t)))))
-
-    (cond ((not *interactive*) (quit))
-	  ((and *syntax-rules* (not (provided? 'macro)))
-	   (require 'repl)
-	   (require 'macro)
-	   (let* ((oquit quit))
-	     (set! quit (lambda () (repl:quit)))
-	     (set! exit quit)
-	     (repl:top-level macro:eval)
-	     (oquit))))
-    ;;otherwise, fall into natural SCM repl.
-    )
-   (else (errno 0)
-	 (set! *interactive* #t)
-	 (for-each load (cdr (program-arguments))))))