Vim自動命令在打開「nothing」時觸發

Question

我希望vim在打開或創建文件時打開：Explorer。例如。當我撥打vim沒有任何選擇。

調用vim newfile.txt應該仍然表現正常的方式。

我該怎麼做呢？我似乎無法找到正確的autocmd。

Answer 1

如果你想只VIM調用做到這一點，最好的辦法是使用argc()：

autocmd VimEnter * :if argc() is 0 | Explore | endif 

argc()函數返回一個數字上的命令行中指定的文件名時，VIM被調用，除非有修改參數列表，更多信息請點擊:h argc()。

Answer 2

找到自己的答案：

"open to Explorer when no file is opened 
function! TabIsEmpty() 
    " Remember which window we're in at the moment 
    let initial_win_num = winnr() 

    let win_count = 0 
    " Add the length of the file name on to count: 
    " this will be 0 if there is no file name 
    windo let win_count += len(expand('%')) 

    " Go back to the initial window 
    exe initial_win_num . "wincmd w" 

    " Check count 
    if win_count == 0 
     " Tab page is empty 
     return 1 
    else 
     return 0 
    endif 
endfunction 

" Test it like this: 
" echo TabIsEmpty() 

function! OpenExplorer() 
    if (TabIsEmpty()) 
     :Explore 
    end 
endfunction 

這段代碼的最大部分是由this question拍攝。