How can I detect when I'm viewing vim's docs?

Question

I normally like setting scrolloff=99, but it's not ideal when I'm reading the help files. How can I detect when I'm in there so I can turn scrolloff off?

Answer 1

Vim has a special filetype for help docs called help. So you may use an autocmd to set it conditionally in your .vimrc. This requires using BufEnter conditionally to match the 'help' filetype.

autocmd BufEnter * if &filetype == 'help'| set scrolloff=0 | else | set scrolloff=99 | endif