Change vim indenting format

Question

I want to add to the way html is indented in vim. I'm doing django development and I would like to indent whenever a django template tag is used. Currently, using filetype indent, it does not indent after the template tags. So currently my code looks like this:

{% do_something %}
<div>
  <p>Hello</p>
</div>
{% end %}

And I'd like for it to recognize the {% %} as a tag and indent like so:

{% do_something %}
  <div>
    <p>Hello</p>
  </div>
{% end %}

Is there a filetype plugin for this or a way I can add {% %} to the list of things that should be indented after?

Answer 1

When you have filetype indent on for an html file it will use the indenting rules found in the ../vim/vim73/indent subdirectory in file html.vim.

The braces you want to use as signaling indent of next line are, I'm sure, not treated in html.vim because they're not part of html. You can alter the rules in html.vim to get it done the way you want.

See :h indent-expr for a bit of info and you will also want to look at other files in the /indent directory to see how it works.

There is an alternate html.vim you can get at vim website, maybe it is better than html.vim that ships with Vim: http://www.vim.org/scripts/script.php?script_id=2075