if g:ack_autofold_results
setlocal foldlevel=0
setlocal foldmethod=expr
setlocal foldexpr=matchstr(getline(v:lnum),'^[^\|]\\+')==#matchstr(getline(v:lnum+1),'^[^\|]\\+')?1:'<1'
setlocal foldenable
setlocal foldclose=all
setlocal foldopen=all
nnoremap <buffer> j jzz
endif