Re: [edk2-devel] [edk2-discuss] Google Summer of Code Interested Student


Nate DeSimone
 

Hi Andrew,

I tested VT_UTF8 on the macOs Terminal software and I can confirm that VT_UTF8 renders nicely. See the attached screenshot.

Thanks,
Nate

On 3/17/21, 9:02 AM, "Andrew Fish" <afish@apple.com> wrote:

If we are mentioning terminal types the default terminal type on a Mac is xterm-256color. So that is going to be the default when people run OVMF on a Mac. So it would be nice if we can add that. I can help out with anything xterm-256color related.

Thanks,

Andrew Fish

On Mar 16, 2021, at 8:23 AM, Laszlo Ersek <lersek@redhat.com> wrote:
>
> Hi Nate,
>
> (adding Leif and Ard)
>
> On 03/13/21 03:52, Desimone, Nathaniel L wrote:
>> I've created a new wiki page for this task with all the information I
>> have gathered thus far. I've done some more experimentation and found
>> that there are several newer terminal emulators that don't support
>> DEC Special Graphics so I've reduced the number of modes where DEC
>> Special Graphics should be preferred. Laszlo, if you could take a
>> look at the terminal type matrix I created that would be very
>> helpful.
>>
>> https://github.com/tianocore/tianocore.github.io/wiki/Tasks-Terminal-driver-improvements
>
> (
>
> My background:
>
> I settled on plain (non-UTF-8) xterm around 1998, and have been using it
> ever since. Whenever something was off, I always tried to hammer the
> application into conformance with my particular xterm setup, rather than
> the other way around. I also have some quirky terminal settings -- for
> me, "backspace" generates ^H / keycode 22 (stty sets erase to ^H),
> "delete" generates keycode 119, and there's no "rubout". I still don't
> use UTF-8 (I use latin2).
>
> )
>
> * Regarding ArmVirtPkg, I stick with the default TTY_TERMINAL=FALSE
> setting (which means VT-100). Using that setting, I see the following
> kind of "ASCII approximation" for box drawing:
>
> /------------------------------------------------------------------------------\
> | Boot Manager |
> \------------------------------------------------------------------------------/
>
> I'm really happy with this, as I don't care much for nice-looking
> boxes; instead I prefer portability.
>
> (NB: this seems to disagree with your "Current Behavior (Which is
> wrong)" line for VT100, as it suggests CP437. That's not what I'm
> seeing with VT100.)
>
> TTY_TERMINAL=TRUE would mainly affect backspace / delete I think -- as
> far as I recall, that's why I asked Roy not to make TTY_TERMINAL=TRUE
> the default, in 2015:
>
> http://mid.mail-archive.com/555458DB.3090602@redhat.com
> http://mid.mail-archive.com/CAFECyb_E+bGZt5xv7QhRqyD0jX=AzoEMw7VW_tjZr+E=sQf8ww@mail.gmail.com
>
> (I'd like to CC Roy, but I can't tell if he's now working for Linaro,
> Cavium, HPE, Marvell, or another company.)
>
> * Regarding OvmfPkg, currently PC_ANSI is hard-coded, and for me it
> looks like this:
>
> ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄż
> ł Boot Manager ł
> ŔÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄŮ
>
> Obviously I'd much prefer if I got the simple ASCII approximation here
> as well.
>
> * Whether VT100 and/or PC_ANSI and/or TTY_TERM are *officially* supposed
> to use DEC Special Graphics, I can't tell.
>
> I know what my preferences are:
>
> - the current BackSpace and Delete mappings (which work fine for me
> with both VT100 and PC_ANSI, but *not* with TTY_TERM),
>
> - and the most primitive ASCII mapping (no special graphics, no UTF-8
> sequences, etc). I really like a super dumb terminal, where taking
> simple "ASCII screenshots" (and pasting them into plaintext emails!)
> is *trivial*.
>
> ... Looking at your "Expected Behavior" table, there is only one line
> left with "poor man's ASCII" -- namely, TTY_TERM. Unfortunately,
> TTY_TERM breaks my BackSpace / Delete settings :(
>
> * In summary, I'd prefer if (a) VT100 stayed as-is (using "poor man's
> ASCII", as seen in ArmVirtPkg), and (b) if OVMF used *that* VT100,
> rather than PC_ANSI, by default.
>
> Thanks!
> Laszlo
>
>
>
>
>
>

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