[Bug-mit-scheme] [bug #44253] "REPL needs response..." Edwin (Scheme 9.0 and 9.2) problem with Win 7

[Ray Artz]

URL:
  <http://savannah.gnu.org/bugs/?44253>

                 Summary: "REPL needs response..." Edwin (Scheme 9.0 and 9.2)
problem with Win 7
                 Project: MIT/GNU Scheme
            Submitted by: rayartz
            Submitted on: Sat 14 Feb 2015 08:47:31 PM GMT
                Category: edwin
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                Keywords: 

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Details:

I am new to Edwin and MIT-Scheme, but my recent installation under MAC OS X
Yosemite works fine, so I think I know how Edwin should work.  My installation
of Edwin and Scheme on Win 7 has no problem if I simply work within the
*Scheme* buffer that first comes up when I call Scheme with the --edit option
(via a Windows shortcut).  That is, using C-X C-E, I get appropriate responses
when I evaluate legal expressions, and I get appropriate error messages if I
attempt to evaluate an illegal expression.  However, once I open a separate
file buffer for a .scm file and work from that buffer, I get different
behavior.  There is no problem as long as I evaluate just legal expressions
(using C-X C-E):  I get the appropriate response in the mini-buffer.  However,
when I attempt to evaluate an illegal expression (such as (+2 2) or (cub)), I
get no response in the mini-buffer or in the main buffer.  Further, when I
proceed to attempt to evaluate anything after that (legal or not), I get the
message "REPL needs response before evaluation will be enabled" in the
mini-buffer. I have found no way to proceed after that except to close Edwin. 
I do not know if this is actaully a bug or if it is some sort of installation
error, possibly involving an environment variable.  However, I accepted all
the defaults when I installed and did not tamper with any enviroment
variables.  Also, I experience the same problems whether I install as an
administrator or as an ordinary user.  Finally, I have tried both versions 9.0
and 9.2 of MIT-Scheme, and get the same behavior.




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