Hi Anton,

thanks for answering. Finally I found it. My next problem is that I have absolutely no idea how to use it.
I followed the instructions I have found in this mailing list and copied the syntax files into my ~/.vim/syntax
and the two plugin files into my ~/.vim/plugin folders.

Then I called
    vi -c 'NMVimpy()'
The result is
    E492: Not an editor command: NMVimpy()

I tried
    vi -c ':nm_vimpy()'
as well. And vi answers
    No mapping found

Is there a README file or any other kind of documentation for your script?

Best regards
Joseph