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Re: Hightlighting in bash

From: Micah Cowan
Subject: Re: Hightlighting in bash
Date: Thu, 10 Mar 2011 11:53:22 -0800
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20110223 Thunderbird/3.1.8

(03/10/2011 11:42 AM), Philip Prindeville wrote:
> My request is simple.  Using termcap/ncurses info (which you need anyway
> for the readline stuff), it would be nice to have the option of running
> commands in a pseudo-tty and then bracketing the output from STDERR with
> <highlight on>...<highlight off>.

This doesn't strike me as remotely within the domain of responsibilities
that should belong to bash, mainly because:

  1. it has nothing to do with anything that shells normally do.
  2. putting it in bash specifically, would rob other, non-bash related
commands, the possibility of having such a feature.

It wouldn't be difficult to write as a separate program, which is really
how this should be handled. You could redirect a pipeline's STDOUT and
STDERR to individual named pipes (FIFOs), and have a separate program
read from both pipes, inserting highlights around any data it copies
from the STDERR pipe.

Micah J. Cowan

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