patch 8.2.0775: not easy to call a Vim function from Lua Commit: https://github.com/vim/vim/commit/eb04f0893afe01faff272ef84c70d8cc16d8e80a Author: Bram Moolenaar <Bram@vim.org> Date: Sun May 17 14:32:35 2020 +0200 patch 8.2.0775: not easy to call a Vim function from Lua Problem: Not easy to call a Vim function from Lua. Solution: Add vim.call() and vim.fn(). (Prabir Shrestha, closes https://github.com/vim/vim/issues/6063)

" Vim indent file
" Language:      BibTeX
" Maintainer:    Dorai Sitaram <ds26@gte.com>
" URL:		 http://www.ccs.neu.edu/~dorai/vimplugins/vimplugins.html
" Last Change:   2005 Mar 28

" Only do this when not done yet for this buffer
if exists("b:did_indent")
  finish
endif
let b:did_indent = 1

setlocal cindent

let b:undo_indent = "setl cin<"