diff options
Diffstat (limited to 'STk.init')
| -rw-r--r-- | STk.init | 63 |
1 files changed, 45 insertions, 18 deletions
@@ -7,35 +7,29 @@ ;;; (software-type) should be set to the generic operating system type. ;;; UNIX, VMS, MACOS, AMIGA and MS-DOS are supported. - (define (software-type) 'UNIX) ;;; (scheme-implementation-type) should return the name of the scheme ;;; implementation loading this file. - (define (scheme-implementation-type) '|STk|) ;;; (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://kaolin.unice.fr/STk/STk.html") ;;; (scheme-implementation-version) should return a string describing ;;; the version the scheme implementation loading this file. - (define (scheme-implementation-version) (version)) ;;; (implementation-vicinity) should be defined to be the pathname of ;;; the directory where any auxillary files to your Scheme ;;; implementation reside. - (define (implementation-vicinity) "/usr/local/lib/stk/3.99.3/") ;;; (library-vicinity) should be defined to be the pathname of the ;;; directory where files of Scheme library functions reside. - (define library-vicinity (let ((library-path (or (getenv "SCHEME_LIBRARY_PATH") "/usr/local/lib/slib/"))) (lambda () library-path))) @@ -44,14 +38,18 @@ ;;; (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 - (let ((home-path (or (getenv "HOME") "/"))) - (lambda () home-path))) +(define (home-vicinity) + (let ((home (getenv "HOME"))) + (and home + (case (software-type) + ((UNIX COHERENT MS-DOS) ;V7 unix has a / on HOME + (if (eqv? #\/ (string-ref home (+ -1 (string-length home)))) + home + (string-append home "/"))) + (else home))))) ;;; *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 @@ -61,7 +59,7 @@ ;; Scheme report features -; rev5-report ;conforms to +; r5rs ;conforms to eval ;R5RS two-argument eval ; values ;R5RS multiple values dynamic-wind ;R5RS dynamic-wind @@ -75,11 +73,11 @@ ;STRING-FILL!, LIST->VECTOR, ;VECTOR->LIST, and VECTOR-FILL! - rev4-report ;conforms to + r4rs ;conforms to ieee-p1178 ;conforms to -; rev3-report ;conforms to +; r3rs ;conforms to ; rev2-procedures ;SUBSTRING-MOVE-LEFT!, ;SUBSTRING-MOVE-RIGHT!, @@ -90,7 +88,7 @@ multiarg/and- ;/ and - can take more than 2 args. with-file ;has WITH-INPUT-FROM-FILE and - ;WITH-OUTPUT-FROM-FILE + ;WITH-OUTPUT-TO-FILE ; transcript ;TRANSCRIPT-ON and TRANSCRIPT-OFF ieee-floating-point ;conforms to IEEE Standard 754-1985 ;IEEE Standard for Binary @@ -141,6 +139,37 @@ ;;; use this definition if your system doesn't have such a procedure. (define (force-output . arg) (apply flush arg)) +(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'"))) + ;;; CHAR-CODE-LIMIT is one greater than the largest integer which can ;;; be returned by CHAR->INTEGER. (define char-code-limit 256) @@ -199,7 +228,7 @@ (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) @@ -230,13 +259,11 @@ ;;; (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) ;;; |