This is an example configuration:
NeoBundle 'mrkn/vim-cruby'
augroup cruby
autocmd!
autocmd BufWinEnter,BufNewFile ~/rubies/trunk/**/*.[chy] setlocal filetype=cruby
augroup END
On ft=c:
On ft=cruby:
Copyright © 2013 Kenta Murata. Please see http://mrkn.mit-license.org/ for the License of this software.