my @strings = qw( aaaaa eeeee iiiii abcde aeiou bdfhj ); my %regexes = ( alternation => qr/a|A|e|E|i|I|o|O|u|U/, class => qr/[AaEeIiOoUu]/ ); foreach my $string (@strings) { print "$string:\n"; while (my ($k, $r) = each %regexes) { print "\t$k - " . ($string =~ /$r/ ? 'YES' : 'NO') . $/; } } --------------- aaaaa: alternation - YES class - YES eeeee: alternation - YES class - YES iiiii: alternation - YES class - YES abcde: alternation - YES class - YES aeiou: alternation - YES class - YES bdfhj: alternation - NO class - NO

Please give me a counter-case. As far as I can tell, the two regexes are identical, save that the alternation one is slower.

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In reply to Re: Re: Re: Re: $_ works, $my_variable doesn't? by dragonchild
in thread $_ works, $my_variable doesn't? by C_T

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