Allow students to specify a null "reply-to:" address. Always ask for

this, but keep the last non-null address around and supply it as a
default.

diff --git a/v7/src/6001/make.scm b/v7/src/6001/make.scm
index 468a204028f778b04bf684dd87e4dededa564d89..15de23dce8da489de2eb0f89dd1cc8e799ae8c7e 100644 (file)
--- a/v7/src/6001/make.scm
+++ b/v7/src/6001/make.scm
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/6001/make.scm,v 15.10 1992/08/18 22:43:08 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/6001/make.scm,v 15.11 1992/08/19 17:24:20 cph Exp $
 
 Copyright (c) 1991-92 Massachusetts Institute of Technology
 
@@ -63,11 +63,15 @@ MIT in each case. |#
   (set-variable-value! edwin-variable$trim-versions-without-asking true)
   (set-variable-value!
    edwin-variable$mail-default-reply-to
-   (lambda ()
-     (let ((reply-to
-           (prompt-for-string "Please enter an email address for replies"
-                              false)))
-       (set-variable-value! edwin-variable$mail-default-reply-to reply-to)
-       reply-to))))
+   (let ((default-reply-to false))
+     (lambda ()
+       (let ((reply-to
+             (prompt-for-string "Please enter an email address for replies"
+                                default-reply-to)))
+        (if (string-null? reply-to)
+            false
+            (begin
+              (set! default-reply-to reply-to)
+              reply-to)))))))
 
 (ge '(student))
\ No newline at end of file