扩展html标签后的Vim光标位置 [英] Vim cursor position after expanding html tag

问题描述

在大多数IDE和现代文本编辑器(Sublime Text 3)中，在html标记之间插入换行符(又称扩展"标记)后，光标已正确缩进:

I most IDEs and modern text editors (Sublime Text 3) the cursor is correctly indented after inserting a newline in between an html tag (aka 'expanding" the tag):

之前:

<div>|</div>

按CR后:

<div>
    |
</div>

但是在Vim中，这就是我得到的:

But in Vim, this is what I get:

<div>
|</div>

如何在Vim中获得与大多数其他编辑器相同的行为(见上文)?

How can I get the same behaviour in Vim like in most other editors (see above)?

推荐答案

在插入模式下<CR>唯一的正确行为是在光标处换行.

The only correct behavior of <CR> in insert mode is to break the line at the cursor.

您想要的是增强的行为，您需要在配置中添加一些东西才能获得它:映射，简短函数或完整的插件.

What you want is an enhanced behavior and you need to add something to your config to get it: a mapping, a short function or a full fledged plugin.

当我开始使用vim时，这种行为实际上是我添加到vimrc中的第一件事.我过去曾对其进行过多次更改，但是这种映射已经相当稳定了一段时间:

When I started to use vim, that behavior was actually one of the first things I added to my vimrc. I've changed it many times in the past but this mapping has been quite stable for a while:

inoremap <leader><CR> <CR><C-o>==<C-o>O

我已经使用<leader><CR>来保持<CR>的正常行为.

I've used <leader><CR> to keep the normal behavior of <CR>.

这是一个小功能，似乎可以满足您的要求:

Here is a small function that seems to do what you want:

function! Expander()
  let line   = getline(".")
  let col    = col(".")
  let first  = line[col-2]
  let second = line[col-1]
  let third  = line[col]

  if first ==# ">"
    if second ==# "<" && third ==# "/"
      return "\<CR>\<C-o>==\<C-o>O"

    else
      return "\<CR>"

    endif

  else
    return "\<CR>"

  endif

endfunction

inoremap <expr> <CR> Expander()

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