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Re: Hightlighting in bash


From: Chet Ramey
Subject: Re: Hightlighting in bash
Date: Thu, 10 Mar 2011 15:07:09 -0500
User-agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7

On 3/10/11 2:42 PM, 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>.
> 
> Of course, that also implies that your writes to wherever STDERR eventually
> goes are atomic and won't be interspersed with output from STDOUT.  I'll
> let someone more intimate with the particulars of stdio and tty drivers and
> line disciplines figure that bit out.
> 
> This would be nice because it would allow one to quickly identify and
> isolate potentially detrimental error messages from mundane but profuse
> output that logs commands being invoked, etc.

This doesn't seem like it has to be done in bash.  A small program that
allocated and opened a pty, ran bash in the pty (or an arbitrary command
and arguments specified on the command line), and managed input and output
would be acceptable.

There look to be a few packages out there that could be adapted for this.
Even a pty sniffing program would do the trick.

Chet
-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/



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