could I just intialize the hash with a full list of options set to false, then set them true based on $4?
my %control = map { $_ => 'false' } split ' ', 'play ctrl loop'
my %control = map { $_ => 'true' } split ' ', $4;

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In reply to Re^3: setting up boolean parameters from keywords by rand0mmm
in thread setting up boolean parameters from keywords by rand0mmm

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