Re: Why does case-pattern undergo "process substitution"?

[shynur .]

> the behavior is easily confirmed.
>
> $ case <(:) in '<(:)') echo not expanded;; *) echo expanded;; esac
> expanded

Indeed, despite the manual doesn't mention "process substitution":

    The _word_ undergoes tilde expansion, parameter expansion,
    command substitution, arithmetic expansion, and quote
    removal before matching is attempted.