4-Nov-82 10:29:00,1554;000000000000
Date: Thursday, 4 Nov 1982 09:29-PST
To: HONEYCUTT at MIT-MC
Cc: INFO-CPM at BRL, AMETHYST-USERS at MIT-MC
Cc: bridger at RAND-UNIX, Roger L Long <BYTE at MIT-MC>
Subject: Catching function key sequences
From: bridger at RAND-UNIX
My bios CONIN has an option to enter a countdown loop when an ESC is
received. If the next char is received within that time, it assumes both
the escape and the follow-on character were sent by a function key. It then
discards the ESC and sets the high bit of the follow-on character to signal
the application program. If it timesout without receiving anything, the
ESC is presumed to have been typed as the escape key and is returned.
You could have your editor patch in its own CONIN to do this while
it's running, then restore the bios CONIN on exit from the editor.
The timing constant is based on the CPU speed and the baud rate for
the terminal channel and presumes that the follow-on character will be sent
by the terminal's ROM as soon as the baudrate permits.
Let me know if you pursue this. On reading Roger Long's message,
I see that this technique may need to be extended another character for
the 3-character sequences from the H-19 alternate keypad.
A useful feature of this approach is that it allows the editor
to distinguish between ESC-char sent as separate keystrokes, and a function
key that transmits the same sequence. This permits binding the function keys
to anything without conflicting with bindings chosen for the separate
keystroke commands.
bridger.
27-Nov-82 09:56:00,287;000000000000
Date: 27 November 1982 11:56-EST
From: Frank J. Wancho <FJW at MIT-MC>
Subject: [JERRYB: forwarded]
To: AMETHYST-USERS at MIT-MC
Date: 11/27/82 05:25:22
From: JERRYB
To: AMETHYST-USERS-REQUEST
Does anybody have any code modifying mince to edit lisp code?
