tried this, but unfortunately no avail. :(

> Yes, it is a bug in the parser. In that monstrosity which analyses POD, Here-docs, regexes, and quote-like constructs, because in all of these things characters may change their meaning.

I still think the only viable way is to have an expandable set of tests with Perl snippets to parse.

An external Perl script should run them thru different emacs installations in batch mode.

I started working on this some years ago, have to dig this out again ...

... unfortunately I am a bit too exhausted at the moment to do it right away.