patch 9.0.2182: Vim9: need a way to reserve future extension Commit: https://github.com/vim/vim/commit/ff6f0d5c38e81f742e1161c1504fc6b8e45d9a1e Author: Yegappan Lakshmanan <yegappan@yahoo.com> Date: Thu Dec 21 16:46:18 2023 +0100 patch 9.0.2182: Vim9: need a way to reserve future extension Problem: Vim9: need a way to reserve future extension Solution: reserve double underscore prefix for future use (Yegappan Lakshmanan) related: #13238 closes: #13742 Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com> Signed-off-by: Christian Brabandt <cb@256bit.org>

" Vim filetype plugin
" Language:      ART-IM and ART*Enterprise
" Maintainer:    Dorai Sitaram <ds26@gte.com>
" URL:		 http://www.ccs.neu.edu/~dorai/vimplugins/vimplugins.html
" Last Change:   Apr 2, 2003
"                2023 Aug 28 by Vim Project (undo_ftplugin)

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

run ftplugin/lisp.vim

setl lw-=if
setl lw+=def-art-fun,deffacts,defglobal,defrule,defschema,for,schema,while

let b:undo_ftplugin ..= " | setl lw<"