vim - Custom mappings in help text buffers -

i tend not use windows in vim (i prefer tabs), there things use them, such text buffers. i'm fine that, how seldom use windows, takes me second remember how close window (<c-w>c) , go doing. i'd add line vimrc maps q close window, if window buffer.

i've done similar netrw windows, this:

augroup wtf_netrw   autocmd!   autocmd filetype netrw nnoremap <buffer> q :e#<cr> augroup end 

i tried doing similar thing filetype help:

:autocmd filetype nnoremap <buffer> q <c-w>c 

but didn't work -- typing q in text buffer did default q action, recording macro.

when try :nnoremap q <c-w>c, typing q in text buffer closes window expect.

is there special way add mapping works in text buffer?

i use (borrowed junegunn's vimrc, think):

augroup vimrc     autocmd!     autocmd bufenter *.txt call s:at_help()     ... augroup end  " special actions files function! s:at_help()     if &buftype == 'help'         " enable 'q' = quit         nnoremap <buffer> q :q<cr>     endif endfunction