2023年4月18日(火) 0:59 Chet Ramey <chet.ra...@case.edu>:
> Once you have -V, isn't -z superfluous? It's just
>
> compgen -V varname options word
> printf '%s\0' "${varname[@]}"
>
> right? What am I missing?You are right. Actually, when I implemented -z, I also initially thought about the possibility to add an option to store results in a specified array. Then, after looking at the codebase of bash-completion and thinking about the actual use cases, I decided to switch to the flag -z, but I actually don't remember the exact reason I finally switched to -z. (Maybe it was because when I submit a patch to bash-completion, it is easier to explain the code using mapfile, which is already used in bash-completion, than using printf '%s\0', which the maintainer might not be comfortable with). I thought about it again and I now feel -V is better if one needs to choose one from -V and -z. -- Koichi
