diff options
Diffstat (limited to 'gambit.init')
| -rw-r--r-- | gambit.init | 73 |
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")) |