Marco Koster <marco.koster at gmail.com> writes:
> Hi,
>
> I have tried to find a solution tot this error on the internet, but
> have not been successful. I am running version 5.38.0 on Mac 10.8.2.
>
> When I put a simple expression in wMaxima and ask it to factor it (or
> derive it, or integrate it), the system crashes and outputs the
> following error message several times:
>
> Maxima encountered a Lisp error:
> decoding error on stream
> #<SB-SYS:FD-STREAM for "socket 127.0.0.1:56693, peer: 127.0.0.1:4010"
> {13649991}>
> (:EXTERNAL-FORMAT :ASCII):
> the octet sequence (203) cannot be decoded.
> Automatically continuing.
> To enable the Lisp debugger set *debugger-hook* to nil.
>
> I had this issue with previous version, and am currently trying it
> again with latest version (5.28.0), but result is the same.
Hi,
Can you tell us what the simple expression is? The error means that the
host lisp (which is SBCL) is trying to read data from wxmaxima and it's
getting the byte 203. Since SBCL thinks that the stream should be an
ASCII stream of text, it complains (since :ASCII here means 7-bit ascii
and 203 > 127).
Presumably this can be fixed by convincing wxMaxima to set up the
lisp process to expect UTF-8 or something similar. I'm afraid I can't be
much more help, since I don't use this front-end, but maybe this will
provide you with some clues.
Rupert
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