This little snippet will print the first 'x' primes, with 'x' being a number supplied as the argument to the snippet (defaults to 10). It relies on Abigail-II's one-line prime number test and iterators as described in Dominus upcoming book.

#!/usr/bin/perl
use warnings;
use strict;

sub NEXT ($) { $_[0]->() }

sub prime_iterator {
    my $num = 0;
    sub {
        do {
            $num++;
        } until ( (1 x $num) !~ /^(11+)\1+$/);
        return $num;
    }
}

my $prime = prime_iterator;
print NEXT $prime, "\n" for (1 .. shift || 10);

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In reply to Prime Iterator by Ovid

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