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Re: Bash with colors?

From: Jan Schampera
Subject: Re: Bash with colors?
Date: Mon, 16 Feb 2009 18:53:34 +0100
User-agent: Mozilla-Thunderbird (X11/20090103)

Antonio Macchi wrote:
>>> commands like "ls --color" does not use terminfo capabilities...
>>> ...use instead fixed strings (without regards about TERMinal)
>>> is this a good (and safe) choice too?
>> IMHO not. Too many assumptions. GNU ls seems to always assume an ANSI
>> terminal, regardless which TERM is set. Or did I miss something?

> I have done a little search about how terminals uses "setaf"

> a very very long list of terminals uses the same style of capabilities
> are maybe the others simply "out-of-date"?

No wonder, 'setaf' is "set ANSI foreground" IIRC, dedicated to ANSI
terminal control.

But yes, you're right, most terminals talk ANSI, at least for the most
important codes.

And for the same reason some people hardcode the dot or the comma as
thousands separator in their code, ignoring locale settings. "Never seen
something different."

Alone the fact that STDOUT is a terminal, without knowing which terminal
it is, isn't a good base for a decision what to send. I remember alot of
stupid MS-DOS applications that blindly relied on running ANSI.SYS CON
driver - producing screen output that looked like streusel slices.

Just my 2ct


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