From: Wayne Davison <wayned@users.sourceforge.net>
To: zsh-users@sunsite.dk
Subject: Re: coloring STDERR to terminal
Date: Tue, 20 Jul 2004 16:30:37 -0700 [thread overview]
Message-ID: <20040720233037.GI28269@blorf.net> (raw)
In-Reply-To: <Pine.LNX.4.61.0407201353480.12638@toltec.zanshin.com>
On Tue, Jul 20, 2004 at 02:15:07PM -0700, Bart Schaefer wrote:
> What you're asking for is something to copy multiple inputs to a single
> output, simultaneously adding characters (the color codes) to those inputs
> yet without mixing the result any differently than it would have been
> mixed if the writers of all those inputs had instead written directly to
> that single output.
>
> This is, pretty much by definition, impossible, except (sometimes) at the
> level of a kernel driver.
It's impossible with a single tty (or pty), but if stdout and stderr
each had their own pty, then a program could merge the two ptys to the
real terminal, coloring the stderr one.
Here's a link to a proof-of-concept C program that you can try out:
http://www.blorf.net/color-my-world.c
It spawns a shell and colors all the data sent to stderr. I've only
tested it just a little bit, so I don't know if having a separate pty
for stderr will cause any weird problems or not.
..wayne..
next prev parent reply other threads:[~2004-07-20 23:33 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-27 23:22 Atom 'Smasher'
2004-06-28 0:06 ` ari
2004-06-28 0:36 ` Atom 'Smasher'
2004-06-29 15:43 ` Bart Schaefer
2004-06-29 16:08 ` Vincent Lefevre
2004-06-29 17:14 ` Bart Schaefer
2004-06-30 7:09 ` Vincent Lefevre
2004-06-30 10:52 ` Bart Schaefer
2004-06-30 11:43 ` Vincent Lefevre
2004-06-30 12:01 ` Vincent Lefevre
2004-06-30 16:56 ` Bart Schaefer
2004-07-01 18:14 ` Vincent Lefevre
2004-07-02 0:11 ` Bart Schaefer
2004-07-02 12:42 ` Vincent Lefevre
2004-07-02 21:32 ` Bart Schaefer
2004-07-20 9:10 ` Atom 'Smasher'
2004-07-20 16:10 ` Bart Schaefer
2004-07-20 19:27 ` Atom 'Smasher'
2004-07-20 21:15 ` Bart Schaefer
2004-07-20 23:30 ` Wayne Davison [this message]
2004-07-21 3:15 ` Bart Schaefer
2004-07-21 6:23 ` Wayne Davison
2004-07-21 7:30 ` Bart Schaefer
2004-07-21 13:19 ` Vincent Lefevre
2004-07-30 11:50 ` Andy Spiegl
2004-07-30 23:44 ` Vincent Lefevre
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