Man pages matching name catalyst::dispatchtype::regexp in section 3pm:

Catalyst::DispatchType::Regexp.3pm.en	debian 10 / libcatalyst-dispatchtype-regex-perl
Catalyst::DispatchType::Regexp.3pm.en	debian 11 / libcatalyst-dispatchtype-regex-perl
Catalyst::DispatchType::Regexp.3pm.en	debian 12 / libcatalyst-dispatchtype-regex-perl