Vimscript - 获取当前行的缩进

Question

在 vim-script 中，我如何可靠地为变量分配当前行的缩进？

curpos()获取 col 似乎不可靠，因为它只计算空格，我还需要考虑tabstops。

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.