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Postings from April 2010
Tom Christiansen <tchrist@perl.com> writes:
> and therefore the parens don't matter. Removing them changes
> nothing and risks no confusion, so it seems cleaner without them.
Yes, I was referring to the "simple expressions" all the way. When
combining the expressions, that's another matter. But trivial cases I
think it's preferred still:
for my $item (sort keys {$a <=> $b} %hash) # without extra parens here
I agree everything you wrote. But, I think here:
> close(FH) || die "can't close $path: $!";
>
> than ever, ever write:
>
> close FH or die "can't close $path: $!";
>
> because close, FH, or, and die all have the same lexical nature: they're
> all idents. That cascade of idents *really* bugs me. My mind super really
> wants the () and the || to break things up for quick visual parsing.
> It takes me much, much longer to read
It can be made visually distict by alternative means. You do not need to
type monotonic "one space" around every word:
close FH or die "can't close $path: $!"; # bad
close FH or die "can't close $path: $!"; # better
And when there is enough room even:
close FH or die "can't close $path: $!"; # There is no doub here of LEFT and RIGHT
Similarly in conditionals to make the groups stand out:
if ( defined $flag or $a == 100 or ord $char == ... )
compared to:
if ((defined $flag) || ($a == 100) || (ord($char == ...)))
Jari
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