Re: "Pull just the text of a single command" (was Re: .zsh_history)

[Ray Andrews <rayandrews@eastlink.ca>]

On 2023-04-16 08:53, Bart Schaefer wrote:
> It's much worse than that, consider 
You know, as a logician I'm quite aware that there are things one might 
ask for that are logically not possible to deliver.  It's Godel's 
Theorem applied to tokens.  Heavy duty stuff.  In my case close will count.
> % my_function one && my_function $PATH || my_function three > filename
>
> Or pipelines, or backgrounding, or if/then/else/fi, etc.  You will
> need to define what you intend in each case (please, not by writing it
> in prose here).
>
> The ${(z)...} expansion does a best-case job of mimicking the parser,
> so you can start by using ${(z)1} in preexec and work forward from
> there.  The simple case with semicolons can be handled by
>
> chain=( ${(s:; :)${(z)1}} )

That all sounds quite promising.  What I have now works 99% of the time 
and I'm not interested -- except as a brain-bending puzzle -- in trying 
to break it, but I think what you're suggesting will be a possible 
simplification and that will be nice.  Some virgin territory here tho, 
so I'll be getting stuck most likely.


>