Re: Enable compgen even when programmable completions are not available?

[Eli Schwartz]

On 6/30/23 1:19 PM, Robert Elz wrote:
>     Date:        Thu, 29 Jun 2023 23:05:38 +0100
>     From:        Kerin Millar <kfm@plushkava.net>
>     Message-ID:  <20230629230538.cbef14a75694143ccf034a02@plushkava.net>
> 
>   | The thing is that portage also has a legitimate stake in needing
>   | to enumerate all variable names.
> 
> Why isn't "set" good enough for that?
> 
>       (set -o posix; set) | sed 's/=.*$//' | whatever_processes_them
> 
> You need posix mode, so bash doesn't dump functions as well (which IMO
> it shouldn't do with set, ever, but has probably been doing it since
> prehistoric times, and somewhere, there's probably 1 user depending upon 
> it...)


So then you get what? The exact same thing, with all the attendant
flaws, as declare -p which is already known not to work?

You still have to sed/grep the contents, and you still have the original
declare -p problem that you need to parse the value of the variable in
order to figure out *where* it is so you can discard and ignore it...
which is impractical without an actual shell parser.


-- 
Eli Schwartz