The point of redo is that it does not advance the iterator.
The redo command restarts the loop block without evaluating the conditional again. 
my $redid = 0;
my @list = (1..5);
xyz : for (@list) {
    print;
    redo if $_ == 3 && ! $redid++;
}
# Output: 123345

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In reply to Re^4: removing the goto by imp
in thread removing the goto by scoobyrico

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