Re: The Chthulhoid horror that is keyboard handling in Unix (Re: Backspace, Delete and other keys)

[Aleksey Cheusov <cheusov%tut.by@localhost>]

> You have the OS, which by some convention needs to receive a specific
> character code in order to delete one character to the left. For some
> OSes, like Unix, the code for this can be changed, for some other OSes
> it can not. So you need to know which character is needed, and why.
> From there on backwards, you then need your terminal to send this
> code. You terminal sends a code based on a key being pressed down. So
> you need to know how to get this mapping right, to get the right code
> sent to the OS.

I need some help from experts in this area.
Could you please take a look at 

http://gnats.netbsd.org/43148

and explain what's happening with ksh under rxvt terminal
and why it doesn't work as expected.
Thanks.

-- 
Best regards, Aleksey Cheusov.