The second while however, will stop as soon as it finds an empty line

Just to test your assertion:

while (my $line = <DATA>) {print $line}; 
__DATA__
one

two
three

four

[download]

results in

one

two
three

four

It seems that empty lines don't break the loop at all.

In reply to Re^2: A refactoring trap by Caron
in thread A refactoring trap by gmax

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