Re: [Lynx-dev] Lynx behaviour in VT320 terminals

[Thomas Dickey]

On Sun, 27 Mar 2005 address@hidden wrote:

> Hello,
>
> I've noticed that when I start Lynx from my terminal it automatically
> puts the machine into "Application Cursor Mode" and "Application Keypad
> Mode" which forces the numeric pad into cursor keys similar to if you
> shut the num lock of a pc keyboard.

That's done by the terminal description.  In terminfo, that is the
smkx string, e.g.,
        smkx=\E[?1h\E=,
        rmkx=\E[?1l\E>,

Conventionally, both the numeric keypad and the cursor keypad are switched 
into application mode.  The \E= part of the example switches the numeric 
keypad.  The \E[?1h switches the cursor keypad.  The key definitions such 
as kcuf1 in the terminfo have to match the latter.  The former sometimes 
corresponds to other key definitions in the terminfo (but there's no hard 
rule about that).

However, vt320's don't (unless there's some keyboard-specific behavior for 
PC-keyboards - would be interesting to know about) send cursor-keys from 
the numeric keypad.  That sounds more like a terminal emulator. xterm, for 
instance, can do that.  But aside from some commercial products (and only 
a fraction of those that claim to do so), few terminal emulators implement 
vt320.  So I'm curious what the actual configuration is.

> Is there any configuration option to make it so the numeric keypad can
> be used properly on a terminal?  If there is anyway you can help I'd
> gladly appreciate it!!!
>
> Thank you,
>
> John Anderson
>
>
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--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net