Why do Perl control statements require braces?

Question

This may look like the recent question that asked why Perl doesn\'t allow one-liners to be \"unblocked,\" but I found the answers to that question unsatisfactory because they ei

Answer 1

One reason could be that some constructs would be ambiguous without braces :

foreach (@l) do_something unless $condition;

Does unless $condition apply to the whole thing or just the do_something statement?

Of course this could have been worked out with priority rules or something, but it would have been yet another way to create confusing Perl code :-)