Kyotaro Horiguchi <horikyota.ntt@gmail.com> writes:
> I'm not sure how much we (or people) are strcit on the distinction
> between the $SUBJECT, isn't '{' a brace generally?
+1. I tend to write "square bracket" or "curly brace" when I want to
be extra clear, but I think the bare terms are widely understood to
have those meanings.
regards, tom lane