The Ack::Filter::Collection class can contain filters and internally sort them into groups. The groups can then be optimized for faster filtering.
Filters are grouped and replaced by a fast hash lookup. This leads to improved performance when many such filters are active, like when using the --known command line option.
To install App::Ack, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell
For more information on module installation, please visit the detailed CPAN module installation guide.