[Snek] mu, network REPL, echoing

[Keith Packard]

"Misha Gusarov" <dottedmag at dottedmag.net> writes:

> Hi Keith,
>
> On 11 Oct 2020, at 3:40, Keith Packard wrote:
>
>> It could? But the USB serial Snek instances all handle echo and erase
>> stuff inside the device, so presumably the EV3 port should as well?
>>
>> You'll find the echo and erase code in 'snek-io.c', which gets hooked 
>> up
>> in stdio for the avrlibc and picolibc ports, and as SNEK_GETC for the
>> esp32 port. Lots of options for how to connect things up here :-)
>
> Oh, now it all makes sense.
>
> So it follows ev3 port ought to have three modes:
>
> - Non-interactive, reading script from stdin or a file

I think this is just reading from a file?

> - Interactive, terminal. Leaves echoing and line editing to the 
> terminal, handles prompt.
> - Interactive, remote. Hadles echoing, line editing, prompt.

I think I understand the distinction -- 'terminal' mode is when you're
reading from a tty device, 'remote' mode is when the input is from a
network connection.

> Sounds about right?

Yup. Sounds like you're on the right track; I'll trust you to make it
work in the best possible way :-)

-- 
-keith
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