patch 9.0.1643: filetype detection fails if file name ends in many '~' Commit: https://github.com/vim/vim/commit/c12e4eecbb26cedca96e0810d3501043356eebaa Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jun 22 12:18:57 2023 +0100 patch 9.0.1643: filetype detection fails if file name ends in many '~' Problem: Filetype detection fails if file name ends in many '~'. Solution: Strip multiple '~' at the same time. (closes https://github.com/vim/vim/issues/12553)

" Vim indent file
" Language:      BibTeX
" Maintainer:    Dorai Sitaram <ds26@gte.com>
" URL:		 http://www.ccs.neu.edu/~dorai/vimplugins/vimplugins.html
" Last Change:   2005 Mar 28

" Only do this when not done yet for this buffer
if exists("b:did_indent")
  finish
endif
let b:did_indent = 1

setlocal cindent

let b:undo_indent = "setl cin<"