From: Kevin Ballard <kevin@sb.org>
Date: Mon, 15 Nov 2010 22:52:47 GMT
Subject: Re: Add colors to the prompt for status indicators
Message-ID: <19363118-D147-4946-8973-B5DDA4B00985@sb.org>
In-Reply-To: <4CE04B82.1040804@pileofstuff.org>

On Nov 14, 2010, at 12:50 PM, Andrew Sayers wrote:

> It's possible to work around this for a whole script:
> 
> foo() {
> echo -e "\033[;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0m"
> }
> PS1='\[$(foo)'\]>'

If $(foo) were to emit some actual printable characters, won't this make
bash ignore them when calculating line lengths?

> As a fan of colourful prompts, I'd be very happy if you found a way
> around this for parts of a script.  But as a fan of fast prompts, I'd
> prefer not to call __git_ps1 more than once :)

I don't think there is any way around this, besides patching bash to be
intelligent and determine which PS1 characters are printable itself without
relying on \[ and \].

-Kevin Ballard