Please be patient guide me to have a new programming language specific capability/feature very similar to another previous existing one The need arose for such in a PL has upgraded pretty drastic and needs to work as well as the orginal one and the real case is: **Raku out of Perl 5** Even if the `filetype_extensions.conf` was edited to be kind of `Perl=*.pl;*.raku;` ..... its brace matching capability/feature would fail in e.g. a regex sub part variable `qr{ .... }` to become `rx{ }`

Please guide how to set up correctly in clear, complete, brief step-by-step instruction