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sub import
{
    my $class = shift;
 
    $^H{regcomp} = ENGINE;
 
    if (@_) {
        my %args = @_;
        if (exists $args{"-max_mem"}) {
            $^H{__PACKAGE__ . "::max-mem"} = $args{"-max_mem"};
        }
 
        if (exists $args{"-strict"}) {
            $^H{__PACKAGE__ . "::strict"} = $args{"-strict"};
        }
 
        if (exists $args{"-longest_match"}) {
            $^H{__PACKAGE__ . "::longest-match"} = $args{"-longest_match"};
        }
 
        if (exists $args{"-never_nl"}) {
            $^H{__PACKAGE__ . "::never-nl"} = $args{"-never_nl"};
        }
    }
}
 
sub unimport
{
    delete $^H{regcomp}
        if $^H{regcomp} == ENGINE;
}