If you are concerned about speed than contrive to have precompiled those patterns before testing them. I had you directly testing against the keys in the pattern. Another idea might be to do this.

use vars qw' %CACHED_RX ';

sub do_this
{
    my $self = shift;
    my %rx = %{ shift() };

    for ( keys %rx )
    {
        my $rx = $CACHED_RX{$_} ||= qr/$_/;

        if ( $self->{'find'} =~ $rx )
        {

        }
    }
}

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In reply to Re: Re: Re: Returning regexp pattern that was used to match by diotalevi
in thread Returning regexp pattern that was used to match by crabbdean

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