The problem space is string handling, particularly regex use. There is no other language (that I know of, certainly no mainstream language) where regexes are th

The problem space is string handling, particularly regex use. There is no other language (that I know of, certainly no mainstream language) where regexes are the first class citizen they are in perl. In every other language regex handling varies from a bit of a chore to downright painful, where in perl it is natural. So when I know I'm writing something which is primarily text regex handling, I definitely reach for perl.