Re: PROMPT escape sequences

[Atom Smasher <atom@xxxxxxxxxxx>]

On Sun, 7 Oct 2007, Bart Schaefer wrote:

> So the answer to this question is:
>
> } is there a way to set a color at the prompt that doesn't reset to default
> } when i tab-complete?
>
> No, there isn't, because you're relying on the entire prompt being re- 
> painted every time zsh needs to redraw the line that begins with the 
> prompt, but ZLE is optimized to use cursor motions and only redraw the 
> bits of the line that actually need changing.  It has no idea what the 
> color settings are at any given position on the terminal, so it can't 
> restore color; it only knows what the non-zero-width characters are.
===================

this gets me very close:


expand-or-complete () {
    PREDISPLAY=${fg[cyan]}
    zle .expand-or-complete
}
zle -N expand-or-complete


but it doesn't output any escape characters... just the text string 
"^[[36m" as if there's an implied ${(V)fg[cyan]}. what do i need to do to 
make that output a literal escape sequence? why doesn't it work that way 
by default?

i also tried including "reset-prompt" within the redefined 
"expand-or-complete", but didn't have any luck with that. i thought that 
in re-displaying the prompt, it would also re-colorize the text typed at 
the prompt, but apparently it doesn't.


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