autocmd BufRead,BufNewFile /usr/include/*/* set filetype=c autocmd BufRead,BufNewFile *.d set filetype=c autocmd BufRead,BufNewFile *.dat set filetype=c autocmd BufRead,BufNewFile *.i set filetype=c autocmd BufRead,BufNewFile *.h.merge* set filetype=c autocmd BufRead,BufNewFile *.c.merge* set filetype=c