patch 8.2.3271: Vim9: cannot use :command or :au with block in :def function Commit: https://github.com/vim/vim/commit/e4db17fb6e2d029aa2dddfca703ace9bcf0d85fd Author: Bram Moolenaar <Bram@vim.org> Date: Sun Aug 1 21:19:43 2021 +0200 patch 8.2.3271: Vim9: cannot use :command or :au with block in :def function Problem: Vim9: cannot use :command or :au with a block in a :def function. Solution: Recognize the start of the block.

" Vim indent file
" Language:	C++
" Maintainer:	Bram Moolenaar <Bram@vim.org>
" Last Change:	2008 Nov 29

" Only load this indent file when no other was loaded.
if exists("b:did_indent")
   finish
endif
let b:did_indent = 1

" C++ indenting is built-in, thus this is very simple
setlocal cindent

let b:undo_indent = "setl cin<"