Ok, I'll publish a test-script based on Testing syntax parsing in editors (especially emacs) soon.

So we'll be able to run regression tests. =)

update

to be clear, I can insert as many newlines like I want, w/o messing up the result.

update

you were right, I might have forgotten to switch to cperl-mode while testing 27.1

Here an automated test Re^8: IDE for Perl programming? ( *cperl-mode* bug)