If you're reading these in from an array, I wonder if a test like this might be faster: 
my @array = get_block_of_data;
data_is_bad if join("", @array) =~ /[^A-Z]/;

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In reply to Re: Re: Re: Testing a string for a range of characters by Fastolfe
in thread Testing a string for a range of characters by BoredByPolitics

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