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-rw-r--r--gambit.init174
1 files changed, 124 insertions, 50 deletions
diff --git a/gambit.init b/gambit.init
index 47717dc..752d9d0 100644
--- a/gambit.init
+++ b/gambit.init
@@ -1,5 +1,5 @@
;;;"gambit.init" Initialisation for SLIB for Gambit -*-scheme-*-
-;;; Copyright (C) 1991, 1992, 1993 Aubrey Jaffer
+;;; Copyright (C) 1991, 1992, 1993, 1994, 1997 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
@@ -21,27 +21,32 @@
;;; Date: Wed, 12 Jan 1994 15:03:12 -0500
;;; From: barnett@armadillo.urich.edu (Lewis Barnett)
;;; Relative pathnames for Slib in MacGambit
+;;; Hacked yet again for Gambit v2.4, Jan 1997, by Mike Pope
-(define (SOFTWARE-TYPE) 'UNIX) ; 'MACOS for MacGambit.
+(define (software-type) 'UNIX) ; 'MACOS for MacGambit.
(define (scheme-implementation-type) 'gambit)
-(define (scheme-implementation-version) "?")
-
-(define SYSTEM ##unix-system) ; Comment out for 'MACOS
+(define (scheme-implementation-version) "2.4")
;;; (implementation-vicinity) should be defined to be the pathname of
;;; the directory where any auxillary files to your Scheme
;;; implementation reside.
(define implementation-vicinity
- (let ((arg0 (vector-ref ##argv 0)))
- (let loop ((i (- (string-length arg0) 1)))
- (cond ((negative? i) "")
- ((char=? #\: (string-ref arg0 i))
- (lambda ()
- (substring arg0 0 (+ i 1))))
- (else (loop (- i 1)))))))
+ (case (software-type)
+ ((UNIX) (lambda () "/usr/local/src/scheme/"))
+ ((VMS) (lambda () "scheme$src:"))
+ ((MS-DOS) (lambda () "C:\\scheme\\"))
+ ((WINDOWS) (lambda () "c:/scheme/"))
+ ((MACOS)
+ (let ((arg0 (list-ref (argv) 0)))
+ (let loop ((i (- (string-length arg0) 1)))
+ (cond ((negative? i) "")
+ ((char=? #\: (string-ref arg0 i))
+ (set! arg0 (substring arg0 0 (+ i 1)))
+ (lambda () arg0))
+ (else (loop (- i 1)))))))))
;;; (library-vicinity) should be defined to be the pathname of the
;;; directory where files of Scheme library functions reside.
@@ -56,39 +61,77 @@
((MACOS) (string-append (implementation-vicinity) ":slib:"))
((AMIGA) "dh0:scm/Library/")
((VMS) "lib$scheme:")
- ((MS-DOS) "C:\\SLIB\\")
+ ((WINDOWS MS-DOS) "C:\\SLIB\\")
(else ""))))
(lambda () library-path)))
-;;; *features* should be set to a list of symbols describing features
-;;; of this implementation. See Template.scm for the list of feature
-;;; names.
+;;; (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)
+
+;;; *FEATURES* should be set to a list of symbols describing features
+;;; of this implementation. Suggestions for features are:
(define *features*
- ((lambda (l)
- (if (eq? (SOFTWARE-TYPE) 'MACOS) l (cons 'system l)))
'(
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
- object-hash
+ 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!
+; 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
- with-file
- transcript
+ 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?
- ieee-floating-point
- full-continuation
- )))
+; 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
+; queue ;queues
+ pretty-print
+; object->string
+; format
+ trace ;has macros: TRACE and UNTRACE
+; 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
+; current-time ;returns time in seconds since 1/1/1970
+ ))
;;; (OUTPUT-PORT-WIDTH <port>)
(define (output-port-width . arg) 79)
@@ -102,39 +145,56 @@
(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)))))
+(define tmpnam (let ((cntr 100))
+ (lambda () (set! cntr (+ 1 cntr))
+ (string-append "slib_" (number->string cntr)))))
+
+;;; Gambit supports SYSTEM as an "Unstable Addition"; Watch for changes.
+(define system ##shell-command)
+
+;;; (FILE-EXISTS? <string>)
+;(define (file-exists? f) #f)
+
+;;; (DELETE-FILE <string>)
+(define (delete-file f) #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) #t)
+(define force-output flush-output)
+
+;;; CALL-WITH-INPUT-STRING and CALL-WITH-OUTPUT-STRING are the string
+;;; port versions of CALL-WITH-*PUT-FILE.
;;; 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 #x1FFFFFFF) ;; 3-bit tag for 68K
+(define most-positive-fixnum #x1FFFFFFF) ; 3-bit tag for 68K
;;; Return argument
(define (identity x) x)
-;;; If your implementation provides eval, SLIB:EVAL is single argument
+;;; If your implementation provides eval SLIB:EVAL is single argument
;;; eval using the top-level (user) environment.
-(define SLIB:EVAL ##eval-global);; Gambit v1.71
+(define slib:eval eval)
+
+; Define program-arguments as argv
+(define program-arguments argv)
;;; If your implementation provides R4RS macros:
;(define macro:eval slib:eval)
;(define macro:load load)
+; Set up defmacro in terms of gambit's define-macro
+(define-macro (defmacro name args . body)
+ `(define-macro (,name ,@args) ,@body))
+
(define *defmacros*
(list (cons 'defmacro
(lambda (name parms . body)
`(set! *defmacros* (cons (cons ',name (lambda ,parms ,@body))
- *defmacros*))))))
+ *defmacros*))))))
(define (defmacro? m) (and (assq m *defmacros*) #t))
(define (macroexpand-1 e)
@@ -160,9 +220,7 @@
(string-append "slib:G" (number->string *gensym-counter*))))))
(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:eval base:eval)
(define (defmacro:load <pathname>)
(slib:eval-load <pathname> defmacro:eval))
@@ -179,13 +237,27 @@
(evl o))
(set! *load-pathname* old-load-pathname)))))
+(define slib:warn
+ (lambda args
+ (let ((port (current-error-port)))
+ (display "Warn: " port)
+ (for-each (lambda (x) (display x port)) args))))
+
;; define an error procedure for the library
-(define SLIB:ERROR error)
+(define slib:error error)
;; define these as appropriate for your system.
(define slib:tab (integer->char 9))
(define slib:form-feed (integer->char 12))
+;;; Support for older versions of Scheme. Not enough code for its own file.
+(define (last-pair l) (if (pair? (cdr l)) (last-pair (cdr l)) l))
+(define t #t)
+(define nil #f)
+
+;;; 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+)
@@ -197,8 +269,11 @@
(define slib:exit (lambda args (exit)))
;;; Here for backward compatability
-
-(define (scheme-file-suffix) ".scm")
+(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.
@@ -216,4 +291,3 @@
(define slib:load slib:load-source)
(slib:load (in-vicinity (library-vicinity) "require"))
-;;; --- E O F ---