You are probably aware that the default perl syntax highlighting in vim explodes on things as simple as  s!https?://!! as it does not believe in regex delimiters other than / # or [ (at least in my version). It is also pretty qq!! blind as well amongst other things. Perltidy does a considerably better job (on perl) as it needs (and has) a much better parser/tokeniser. You have to hack the perl.vim syntax config file to fix some of these issues if it does not work properly for your style of coding.

Personally I would use vim for generating everything but Perl syntax highlighted HTML as it does a fine job on more rigidly structured code

cheers

tachyon

s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print