在这一系列的Vim命令中,norm dd"0P是什么？

Question

我正在做一个Vimgolf问题来改变这个:

First:
        Junk text.
Second:
        Junk text.
Third:
        Junk text.
Last:
        Copy these lines,
        and replace the text
        in each heading above.

对此:

First:
        Copy these lines,
        and replace the text
        in each heading above.
Second:
        Copy these lines,
        and replace the text
        in each heading above.
Third:
        Copy these lines,
        and replace the text
        in each heading above.
Last:
        Copy these lines,
        and replace the text
        in each heading above.

一个解决方案是:

:8,$y<CR>:g/J/norm dd"0P<CR>ZZ

在:g/J/norm dd"0P做什么？我知道"J"加入了行,":g"是全局的,但我不了解其余部分.

Answer 1

分段:

• "0P- 从寄存器0粘贴最初被拉出的行.如https://unix.stackexchange.com/a/26716中所述
• dd - 删除当前行

因此,这将替换当前行与被阻止的块.