While I definitely agree that or doesn't clearly convey intent in this case, my understanding is that or was added as an alternative to || primarily for flow control purposes in constructs such as open my $file, '<', 'somefile.txt' or die; where the high precedence of || would cause unexpected issues. So I'd say that using or for flow control is completely appropriate in general, it's just not appropriate in this particular case.

As for unless, I'm a big fan when it helps the code to read more like natural English. When you start getting into double negatives and complex expressions, then you swap it out for if because that's what happens in natural English.


In reply to Re^5: next unless condition by dsheroh
in thread next unless condition by hankcoder

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