14 Sep
2008
14 Sep
'08
9:56 a.m.
The backspace is an interesting problem. I've
interpreting ASCII 8
as a backspace, which seems pretty normal to me. But a lot of
clients are sending ASCII 127. Telnet doesn't actually specify
backspace as required function. I need to do more research to see
what the correct behavior is.
Part of the problem is that the specs for things like backspace are for
*output*. Overloading them on input for things like line editing is
somewhat outside the design envelope for them, so it's hardly
surprising that the specs are silent.
As far as I can tell, the only spec for what characters should do what
in an input line editor is user expectations.
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