Re: I found an even easier way to crash CMUCL 19c/19f on FreeBSD 7.1

I spent a half hour looking through the 'man mc'
pages, trying to find out how to gracefully exit from the program,
From: Vassil Nikolov <vniko...@xxxxxxxxx>
I have never used `mc', but I got curious, so I searched for `quit'
in the man page. However, do you have an `f10' key?

Yes. When I press it, it transmits the following sequence of five characters:

Control-open-square-bracket open-square-bracket digit-2 digit-8 tilde

Making that one keystroke be the contents of a CMUCL string, convert to hxd:
* (map 'list #'(lambda (ch) (format nil "~x" (char-code ch))) "^[[28~"))
==> ("1B" "5B" "32" "38" "7E")

Now is there any particular reason to believe that sequence of five
characters is in-combo specially meaningful to 'mc'?

Now since the four arrow keys transmit similar-looking sequences:
uparrow ^[[A
downarrow ^[[B
rightarrow ^[[C
leftarrow ^[[D
and the shell actually understands them and does the "right" thing
(up/down arrows navigate to previous/later shell commands,
left/right arrows move within a single command-line being edited)
it's plausable that the function-number keys might likewise do
something meaningful when typed at some Unix applications/utilities.

By the way, it's my understanding that those same sequences of
characters when sent *from* the host *to* the VT100 terminal
(emulator) are screen-edit cursor-motion commands. I discovered
some of them when scraping 'lynx' output via ext:run-program.
.

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