问题描述
我在vim中启用了autoindent和smartindent，但nocindent已关闭.我正在尝试缩进一些JSON文本而没有完整地打印整个内容，这太麻烦了:
I have autoindent and smartindent in vim turned on, but nocindent turned off. I'm trying to indent some JSON text without pretty-printing the whole thing, which would be too intrusive:
{
"a" : "value1",
"b": "value2",
"c": "value3",
...
通过gg = G格式化为:
Gets formatted by gg=G as:
{
"a" : "value1",
"b": "value2",
"c": "value3",
...
那里发生的逻辑是什么，如果可能的话，我可以设置哪些选项来修复它?我尝试切换诸如autoindent，smartindent和cindent之类的选项(带有"no"对应项)，但是它对=命令没有影响.我最近的尝试有以下选择:
What's the logic going on there, and what options can I set to fix it, if it's possible? I tried toggling options like autoindent, smartindent, and cindent (with their "no" counterparts), but it doesn't have an effect on the = command. My latest attempt had these options:
autoindent
smartindent
nocindent
cinoptions=
indentexpr=
indentkeys=0{,0},:,0#,!^F,o,O,e
推荐答案
我可以解释其逻辑，但是我不确定是否可以轻松解决. Vim的内部缩进器遵循C风格的语法，因此，由于"a" : "value1",行不是以;结尾，因此它假定以下行是该语句的延续，因此应该对其进行缩进以显示该行.
I can explain the logic, but I'm not sure of an easy fix. Vim's internal indenter is following C-style syntax, so since the "a" : "value1", line doesn't end with a ; it assumes that the following lines are a continuation of that statement and they should be indented to show that.
:help C-indenting深入讨论了各种缩进选项及其交互方式.我略读了一下，但没有发现任何意外，但这值得一读.
:help C-indenting goes into great depth discussing the various indent options and how they interact. I skimmed it and nothing jumped out at me, but it's worth a read.
如果您具有可以更好地识别代码结构的外部格式化程序，则可以始终将equalprg设置为运行该格式化程序，而不使用内部格式化程序.
If you have an external formatter that better recognizes the structure of your code, you can always set equalprg to run that instead of using the internal formatter.
再次考虑，set cinoptions+=+0将禁用缩进以继续行.这也会影响常规代码，但是这可能是一个合理的折衷方案，具体取决于哪个会更使您烦恼.如果要编辑独立的.json文件，也可以按文件类型设置它.
On second thought, set cinoptions+=+0 will disable indenting for line continuation. This will also affect regular code, but it might be a reasonable tradeoff depending which annoys you more. You can also set it per filetype if you're editing standalone .json files.
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