Try that with 
my @aap = qw(1one two three four 0stop done);

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The difference between the two-dot and three-dot forms is merely that the RHS will not be evaluated on the same pass as the LHS for the three-dot form. Your expression guarantees that a line beginning with 1 and any following lines beginning with 0 will be printed, plus one line that doesn't begin with 0.
Caution: Contents may have been coded under pressure.

In reply to Re^2: .. operator and not including the condition of right operand by Roy Johnson
in thread .. operator and not including the condition of right operand by eXile

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