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I have a style element in an HTML file. When I type, NeoVim continuously indents each successive line:

bad indentation

In my Vim, it works correctly:

correct indentation

My vimrc.

I would be grateful for any suggestion. Thanks!

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  • I can't reproduce this on Neovim v0.3.1 with a minimal filetype plugin indent on setup. What does :set inde? ai? si? give you? Do you possibly have a plugin installed with its own indent file for CSS? You can check with: :filter /indent/ scriptnames. – ZeroKnight Sep 17 '18 at 21:30
  • Strange. I loaded neovim with a minimal "filetype plugin indent" and still have the same issue. I'm using version v0.3.1 as well. – Zoltan King Sep 19 '18 at 19:25
  • My brain got stuck on "css" and tested with a css file and not an html file as in your example. I can reproduce this behavior with nvim -u NONE -c ':filetype plugin indent on | :e test.html'. HtmlIndent() is definitely the cause. – ZeroKnight Sep 19 '18 at 20:04
  • For the record, I get the same indenting behavior in Vim 8 as well. – ZeroKnight Sep 19 '18 at 20:12
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    @paxdiablo Okay, sorry about that. I'm still getting used to how much is okay to edit; I'll keep that in mind. – ZeroKnight Sep 20 '18 at 18:08
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This particular issue seems to have come up more than once:

Unfortunately the replies and answers mostly consist of non-solutions (suggesting to turn off filetype entirely) or workarounds (set indentkeys+=;). After a lot of digging, I gained more useful knowledge.

Quick History

The current indent/html.vim that ships with the (Neo)Vim runtime is a fork of Andy Wokula's indent file. This fork was originally created and is currently maintained by Bram himself in 2014. It is this overhaul where this CSS-indentation bug was first introduced; Andy's original HTML indent file did not have this indentation issue. Ever since then, it has remained.

...Until very recently!

A very recent upstream commit (22 days ago from the time of writing) included an update to indent/html.vim that fixes the CSS-indentation. Adding this upstream version to ~/<vimfiles>/indent and reproducing the example in your question gives the desired behavior.

Solution

Add the indent/html.vim from the current Vim upstream to your vimfiles:

  • Neovim: ~/.config/nvim/indent
  • Vim: ~/.vim/indent

And of course, make sure that filetype plugin indent on exists somewhere in your configuration.

* This question predates the overhaul fork in 2014, but presents the same symptoms. Perhaps the 2007 version happened to have the same issue?

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    Finally a proper answer! I've been banging my head against the wall on this one and all the "solutions" I could find were stupid things like "turn off your indenting and bind this formatter on F8". Are you serious? Updating to Vim 8.2 worked, thanks ZeroKnight! – Andrei Nemes Apr 4 '20 at 2:22

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