Only Vim -> Perl is fully fleshed out right now. Doing it the other way would be fairly easy though because so much would be reused. Also, with the Vim regexes I had to worry about magicness and so on, the Perl stuff would parse easier.

It's not in Vim.org. I had the code floating around with an MIT license, but it's offline right now. I thought about building a page where you could do the translation (I figured Perl -> Vim is what people would want more) or just use a simple GET request from other code.

Maybe I should do the Perl -> Vim bit and make it available.