patch 9.0.0901: setting w_leftcol and handling side effects is confusing Commit: https://github.com/vim/vim/commit/0c34d562647f029faca40f7733ccfb7b5377672b Author: Bram Moolenaar <Bram@vim.org> Date: Fri Nov 18 14:07:20 2022 +0000 patch 9.0.0901: setting w_leftcol and handling side effects is confusing Problem: Setting w_leftcol and handling side effects is confusing. Solution: Use a function to set w_leftcol() and handle side effects.

" Vim filetype plugin file
" Language:             Relax NG compact syntax
" 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=:# commentstring=#\ %s formatoptions-=t formatoptions+=croql

let &cpo = s:cpo_save
unlet s:cpo_save