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-rw-r--r--gambit.init73
1 files changed, 52 insertions, 21 deletions
diff --git a/gambit.init b/gambit.init
index 538fb47..2e8a10d 100644
--- a/gambit.init
+++ b/gambit.init
@@ -11,7 +11,6 @@
;;; 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) 'MACOS) ; for MacGambit.
(define (software-type) 'UNIX) ; for Unix platforms.
@@ -20,7 +19,6 @@
;;; (scheme-implementation-home-page) should return a (string) URI
;;; (Uniform Resource Identifier) for this scheme implementation's home
;;; page; or false if there isn't one.
-
(define (scheme-implementation-home-page)
"http://www.iro.umontreal.ca/~gambit/index.html")
@@ -35,10 +33,9 @@
;;; (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) (lambda () "/usr/local/src/scheme/"))
+ ((UNIX) (lambda () "/usr/local/share/gambc/"))
((VMS) (lambda () "scheme$src:"))
((MS-DOS) (lambda () "C:\\scheme\\"))
((WINDOWS) (lambda () "c:/scheme/"))
@@ -53,10 +50,9 @@
;;; (library-vicinity) should be defined to be the pathname of the
;;; directory where files of Scheme library functions reside.
-
+;;;
;;; This assumes that the slib files are in a folder
;;; called slib in the same directory as the MacGambit Interpreter.
-
(define library-vicinity
(let ((library-path
(case (software-type)
@@ -71,20 +67,24 @@
;;; (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 home-vicinity
+ (case (software-type)
+ ((UNIX) (lambda () "~/"))
+ ((VMS) (lambda () "~:"))
+ ((MS-DOS) (lambda () "~\\"))
+ ((WINDOWS) (lambda () "~/"))
+ ((MACOS) (lambda () "~:"))))
;;; *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
+ r4rs ;conforms to
+; r3rs ;conforms to
ieee-p1178 ;conforms to
; srfi ;srfi-0, COND-EXPAND finds all srfi-*
sicp ;runs code from Structure and
@@ -104,7 +104,7 @@
rationalize
delay ;has DELAY and FORCE
with-file ;has WITH-INPUT-FROM-FILE and
- ;WITH-OUTPUT-FROM-FILE
+ ;WITH-OUTPUT-TO-FILE
string-port ;has CALL-WITH-INPUT-STRING and
;CALL-WITH-OUTPUT-STRING
transcript ;TRANSCRIPT-ON and TRANSCRIPT-OFF
@@ -123,6 +123,7 @@
; object->string
; format
trace ;has macros: TRACE and UNTRACE
+ break
; compiler ;has (COMPILER)
; ed ;(ED) is editor
system ;posix (system <string>)
@@ -163,6 +164,37 @@
;;; CALL-WITH-INPUT-STRING and CALL-WITH-OUTPUT-STRING are the string
;;; port versions of CALL-WITH-*PUT-FILE.
+(define (make-exchanger obj)
+ (lambda (rep) (let ((old obj)) (set! obj rep) old)))
+(define (open-file filename modes)
+ (case modes
+ ((r rb) (open-input-file filename))
+ ((w wb) (open-output-file filename))
+ (else (slib:error 'open-file 'mode? modes))))
+(define (port? obj) (or (input-port? port) (output-port? 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 (close-port port)
+ (cond ((input-port? port)
+ (close-input-port port)
+ (if (output-port? port) (close-output-port port)))
+ ((output-port? port) (close-output-port port))
+ (else (slib:error 'close-port 'port? port))))
+
+(define (browse-url url)
+ (define (try cmd) (eqv? 0 (system (sprintf #f cmd url))))
+ (or (try "netscape-remote -remote 'openURL(%s)'")
+ (try "netscape -remote 'openURL(%s)'")
+ (try "netscape '%s'&")
+ (try "netscape '%s'")))
+
;;; "rationalize" adjunct procedures.
(define (find-ratio x e)
(let ((rat (rationalize x e)))
@@ -190,10 +222,6 @@
;(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)
@@ -241,12 +269,14 @@
(evl o))
(set! *load-pathname* old-load-pathname)))))
+(define print-call-stack identity) ;noop
+
(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))))
+ (for-each (lambda (x) (display #\ cep) (write x cep)) args))))
;; define an error procedure for the library
(define (slib:error . args)
@@ -264,7 +294,6 @@
;;; 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+)
@@ -284,17 +313,19 @@
;;; (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)
;;; At this point SLIB:LOAD must be able to load SLIB files.
-
(define slib:load slib:load-source)
+(slib:eval '(define-macro (defmacro name parms . body)
+ (set! *defmacros* (cons `(cons ',name (lambda ,parms ,@body))
+ *defmacros*))
+ `(define-macro (,name ,@parms) ,@body)))
+
(slib:load (in-vicinity (library-vicinity) "require"))