patch 8.1.1321: no docs or tests for listener functions commit https://github.com/vim/vim/commit/a334772967de25764ed7b11d768e8b977818d0c6 Author: Bram Moolenaar <Bram@vim.org> Date: Sat May 11 21:14:24 2019 +0200 patch 8.1.1321: no docs or tests for listener functions Problem: No docs or tests for listener functions. Solution: Add help and tests for listener_add() and listener_remove(). Invoke the callbacks before redrawing.

" Vim filetype plugin file
" Language:             m4
" Previous Maintainer:  Nikolai Weibull <now@bitwi.se>
" Latest Revision:      2008-07-09

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

let s:cpo_save = &cpo
set cpo&vim

let b:undo_ftplugin = "setl com< cms< fo<"

setlocal comments=:#,:dnl commentstring=dnl\ %s
setlocal formatoptions-=t formatoptions+=croql

let &cpo = s:cpo_save
unlet s:cpo_save