patch 8.2.1563: Vim9: error when using '%" with setbufvar() r getbufvar() Commit: https://github.com/vim/vim/commit/6f84b6db10ab86bca85e33f3fc6ee735eec8bbe5 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Sep 1 23:16:32 2020 +0200 patch 8.2.1563: Vim9: error when using '%" with setbufvar() r getbufvar() Problem: Vim9: error when using '%" with setbufvar() or getbufvar(). Solution: Use tv_get_buf_from_arg(). (closes https://github.com/vim/vim/issues/6816)

" Vim filetype plugin file
" Language:	Mathematica
" Maintainer:	Ian Ford <ianf@wolfram.com>
" Last Change:	22 January 2019

" Only do this when not done yet for this buffer
if exists("b:did_ftplugin")
	finish
endif

" Don't load another plugin for this buffer
let b:did_ftplugin = 1

let b:undo_ftplugin = "setlocal commentstring<"

setlocal commentstring=\(*%s*\)