Vimscript - 获取当前行的缩进

Question

在 vim 脚本中，我将如何可靠地将当前行的缩进分配给变量？
curpos()获取 col 似乎不可靠，因为它只计算空格，而且我还需要考虑制表位。

Answer 1

使用 indent()功能;来自 :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.