Antw: [EXT] Re: [systemd‑devel] Removing bold fonts from boot messages

["Ulrich Windl" <Ulrich.Windl@xxxxxxxxxxxxxxxxxxxx>]

>>> Frank Steiner <fsteiner-mail1@xxxxxxxxxxxxxx> schrieb am 13.10.2021 um 18:29 in
Nachricht <d156e6c7-10f3-c480-4844-0c8074c66ee3@xxxxxxxxxxxxxx>:
> Ulrich Windl wrote:
> 
>> Stupid question: If you see bold face at the end of the serial line, 
> wouldn't
>> changing the terminal type ($TERM) do?
>> Maybe construct your own terminal capabilities.
> 
> I'd need a TERM that has colors but disallows bold fonts. For some
> reason I wasn't even able to construct a terminfo that would disallow
> colors when using that $TERM inside xterm (and starting a new bash).
> It seems that xterm always has certain capabilities, i.e. "ls --color"
> is always showing colors in xterm, also with TERM=xterm-mono and
> everything else I tried.

You are mixing sender and receiver:
You cannot disable colors in the xterm binary (receiver) via termcap; instead you must restrict what the sender outputs via termcap:
Xterm won't add colors when not requested. Also, not all programs use termcap. Classic VI and Emacs are probably good example who do use termcap/terminfo.


> 
> Anway, settings a translation to bind "allow-bold-fonts(toggle)"
> to a key in xterm resources allows to block bold fonts whenever
> watching systemd boot messages via ipmi or AMT in a xterm...

That's a translation in the receiver. You could also represent bold by colored text, but that's something different.
Also if the ANSI escape sequences are hard-coded (monoculture?), you're out of luck.


> 
> 
> -- 
> Dipl.-Inform. Frank Steiner   Web:  http://www.bio.ifi.lmu.de/~steiner/ 
> Lehrstuhl f. Bioinformatik    Mail: http://www.bio.ifi.lmu.de/~steiner/m/ 
> LMU, Amalienstr. 17           Phone: +49 89 2180-4049
> 80333 Muenchen, Germany       Fax:   +49 89 2180-99-4049
> * Rekursion kann man erst verstehen, wenn man Rekursion verstanden hat. *