You probably missed the if the empty string doesn't have special meaning part that describes, one might think that a bit more laconically than needed, exactly the conditions you mentioned in your post.
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re^3: Code cleanup; how best to deal with: defined(%hash) is deprecated at... (defined--) by choroba
in thread Code cleanup; how best to deal with: defined(%hash) is deprecated at... by taint

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