Search for selection about ack.vim

[kassio]

I have a workaround about it, basead on vim-visual-star-search:

function! VAckSearch()
  norm! gv"sy
  return ':Ack "' . EscapeAllString(@s) . '"'
endfunction

function! EscapeAllString(text)
  return substitute(escape(a:text, '*^$.?/\|{[()]}'), '\n', '\\n', 'g')
endfunction

vnoremap ,as :<C-u>exec VAckSearch()<CR>