【Perl】Subroutines in regex?【Amateur】

Can I use subroutines in regex?

For example, is it possible to do something like:

$string =~ /<Text (example)>/<Text convert_text($1)>/g;

I know that doesn't work like that, but is there a way to do something like that?

Subroutines have the expressive capabilities of a Turing-machine. It would no longer be a regular grammar if you could do that.