How to ensure that formatoptions *never* contains `r` or `o`?

Question

In vim, the filetype occasionally is set to a value that auto-populates formatoptions with r and o, two features that I do not like.

Answer 1

You could define an auto-command in ~/.vimrc to remove r and o format options from every file type:

autocmd CmdLineLeave,BufEnter * set fo-=r fo-=o