The part before the dots turns the flip flop operator to true, the part after sets it to false when it matches.

An example of how the flip flop operator works. 

my @array = qw- 1 2 3 on 4 5 off 6 7 8 on 9 10 11 12 off 13 14 15 -;

for (@array){
    say if /on/ ... /off/;
}

[download]
Update: Added example.

In reply to Re^4: What's the "...0" mean? by lidden
in thread What's the "...0" mean? by tel2

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