How to trigger the indent?

[kuchaguangjie]

I have installed the plugin to my vim via vim-pathogen, but when gg=G, the indention is still odd,

Screenshot:

So, how to indent it correctly ?

And, is it possible for the plugin to support another extension in addition to .lua suffix, e.g .luae ?

[idbrii]

To debug, first do:

 :verbose set indentexpr?

to see if you're actually using this plugin. You can use :scriptnames to help debug if you're not. (See vim-scriptease for an easier to use :Scriptnames.)

And, is it possible for the plugin to support another extension in addition to .lua suffix, e.g .luae ?

If you use .luae files for lua, you can tell vim about it by creating a ~/.vim/ftdetect/lua.vim containing:

au BufRead,BufNewFile *.luae setfiletype lua