patch 8.1.1512: ch_evalexpr() hangs when used recursively commit https://github.com/vim/vim/commit/38ea784fecf7921dca83ddc75fe9cb40708521b2 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jun 9 19:51:58 2019 +0200 patch 8.1.1512: ch_evalexpr() hangs when used recursively Problem: ch_evalexpr() hangs when used recursively. (Paul Jolly) Solution: Change ch_block_id from a single number to a list of IDs to wait on.

" Vim indent file
" Language:	Mail
" Maintainer:	Bram Moolenaar
" Last Change:	2009 Jun 03

if exists("b:did_indent")
  finish
endif
let b:did_indent = 1

" What works best is auto-indenting, disable other indenting.
" For formatting see the ftplugin.
setlocal autoindent nosmartindent nocindent indentexpr=