invoking a procedure to print the prompt

invoking a procedure to print the prompt

[Dave Yost]

I need my prompt to contain one thing in one situation and another 
thing in another situation.

It occurs to me that a more clean and powerful way to implement a 
custom prompt would be via a procedure rather than via the 
traditional prompt string variable substitution syntax.

I can't find a way to do this in the zsh man page.

It seems to me that the only reason prompts weren't implemented using 
functions would have to be the historical accident that shell 
functions came many years later.

Dave

Re: invoking a procedure to print the prompt

[Peter Stephenson]

Dave Yost wrote:
> I need my prompt to contain one thing in one situation and another 
> thing in another situation.
> 
> It occurs to me that a more clean and powerful way to implement a 
> custom prompt would be via a procedure rather than via the 
> traditional prompt string variable substitution syntax.
> 
> I can't find a way to do this in the zsh man page.

It should be as simple as setting up a precmd function that defines
PS1.  If you are up-to-date you can use a suitable precmd_functions
element.

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR PLC, Churchill House, Cambridge Business Park, Cowley Road
Cambridge, CB4 0WZ, UK                          Tel: +44 (0)1223 692070