From 8466d8cfa486fb30d1755c4261b781135083787b Mon Sep 17 00:00:00 2001
From: Bryan Newbold <bnewbold@robocracy.org>
Date: Mon, 20 Feb 2017 00:05:29 -0800
Subject: Import Upstream version 3a1

---
 DrScheme.init | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 57 insertions(+), 4 deletions(-)

(limited to 'DrScheme.init')

diff --git a/DrScheme.init b/DrScheme.init
index 0676250..9942897 100644
--- a/DrScheme.init
+++ b/DrScheme.init
@@ -1,6 +1,59 @@
 ;;;"DrScheme.init" Initialization for SLIB for DrScheme	-*-scheme-*-
-;;  Friedrich Dominicus <frido@q-software-solutions.com>
-;;  Newsgroups: comp.lang.scheme
-;;  Date: 02 Oct 2000 09:24:57 +0200
+;;; Author: Aubrey Jaffer
+;;;
+;;; This code is in the public domain.
 
-(require-library "init.ss" "slibinit")
+(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 end) (zero? (system (string-append cmd url end))))
+  (or (try "netscape-remote -remote 'openURL(" ")'")
+      (try "netscape -remote 'openURL(" ")'")
+      (try "netscape '" "'&")
+      (try "netscape '" "'")))
+
+(cond ((string<? (version) "200")
+       (require-library "init.ss" "slibinit"))
+      (else
+       (load (build-path (collection-path "slibinit") "init.ss"))
+       (eval '(require (lib "defmacro.ss")))
+       (slib:provide 'defmacro)))
+
+;;;The rest corrects mistakes in
+;;;/usr/local/lib/plt/collects/slibinit/init.ss:
+
+(provide 'fluid-let)
+
+(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 #\  cep) (write x cep)) args))))
+
+(define call-with-input-string
+  (lambda (string thunk)
+    (parameterize ((current-input-port (open-input-string string)))
+      (thunk (current-input-port)))))
-- 
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