Vimscript - 獲取當前行的縮進

Question

vim-script，我該如何去可靠地爲變量分配當前行的縮進？

curpos()得到col似乎不可靠，因爲它只計算空格，我也需要考慮tabstops。

Answer 1

使用indent()函數;從:help indent()：

indent({lnum}) The result is a Number, which is indent of line {lnum} in the 
       current buffer. The indent is counted in spaces, the value 
       of 'tabstop' is relevant. {lnum} is used just like in 
       getline(). 
       When {lnum} is invalid -1 is returned.