interface to perldoc. you can get perldoc with integrated operation for vim.
:Perldoc UNIVERSAL
Possible to complete names with <tab>
:Perldoc -f grep
:Perldoc -v $$
Set g:perldoc_split_modifier
to specify modifier of new/split method like below.
let g:perldoc_split_modifier = '10v'
Type K to open Perldoc on the keywords.