AsciiDoc syntax highlighting plugin for Kate?

I'm looking for a way to add AsciiDoc syntax highlighting to the Kate editor. I haven't found anything yet, but I feel sure some solution exists because AsciiDoc appears to be very popular (and is even used by O'Reilly publishing). There are AsciiDoc syntax highlighters for Vim, GEdit, Emacs, TextMate, Geany and others. Surely Kate has one...