Vim-grep

** use grep command to find selected words **

vim-grep/

• plugin/
grep.vim

function! s:GrepOperator(type)
  let l:saved_unnamed_register = @@
  if a:type ==# 'v'
    normal! `<v`>y
  elseif a:type ==# 'char'
    normal! `[v`]y
  else
    return
  endif

  silent execute "grep! -R " . shellescape(@@) . " ."
  copen

  let @@ = l:saved_unnamed_register
endfunction

nnoremap <leader>g :set operatorfunc=<SID>GrepOperator<cr>g@
vnoremap <leader>g :<c-u>call <SID>GrepOperator(visualmode())<cr>

• doc/
grep.txt