Library owner here, just want to point out that m{^ https? :// # Protocol (?: \w+ \. )? # Subdomain ([\w\-]+) \. #

Library owner here, just want to point out that m{^ https? :// # Protocol (?: \w+ \. )? # Subdomain ([\w\-]+) \. # Domain (?: com | org ) # TLD /? $}x Isn't really any different from hex {starts protocol subdomain domain tld maybe("?") ends}