But, I challenge you to construct the regex(es) required to match the terms: the, quick, brown, fox, jumps, over, the, lazy, dog, in any ordering, using some other technique.
my @pats = qw[the quick brown fox jumps over the lazy dog];
my $str = "....";
my $matched = 1;
foreach my $pat (@pats) {
    last unless $matched &&= $str =~ /$pat/;
}

[download]
Or 
my @pats = qw[the quick brown fox jumps over the lazy dog];
my $str = "....";
my $matched = !grep {$str !~ /$_/} @pats;

[download]

In reply to Re^6: Regex match at the beginning or end of string by JavaFan
in thread Regex match at the beginning or end of string by cyber-guard

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