ydcv on vim

ydcv.vim

" translate the word under cursor
function! SearchWord()
    echo system('ydcv --', expand("<cword>"))
endfunction

" translate selected text
function! SearchWord_v(type, ...)
    let sel_save = &selection
    let &selection = "inclusive"
    let reg_save = @@

    if a:0
        silent exe "normal! `<" . a:type . "`>y"
    elseif a:type == 'line'
        silent exe "normal! '[V']y"
    elseif a:type == 'block'
        silent exe "normal! `[\<C-V>`]y"
    else
        silent exe "normal! `[v`]y"
    endif

    echo system('ydcv --', @@)

    let &selection = sel_save
    let @@ = reg_save
endfunction

nnoremap <Leader>d :call SearchWord()<CR>
vnoremap <Leader>d :<C-U>call SearchWord_v(visualmode(), 1)<cr>