patch 9.0.1589: filetype test contains too many special characters Commit: https://github.com/vim/vim/commit/b140c114f641ac4cd4fb04e7bdec031295264a8d Author: Bram Moolenaar <Bram@vim.org> Date: Mon May 29 17:06:05 2023 +0100 patch 9.0.1589: filetype test contains too many special characters Problem: Filetype test contains too many special characters. Solution: Use Vim9 syntax for a few things.

" Vim compiler file
" Compiler:     raco setup (Racket command-line tools)
" Maintainer:   D. Ben Knoble <ben.knoble+github@gmail.com>
" URL:          https://github.com/benknoble/vim-racket
" Last Change: 2022 Aug 12

let current_compiler = 'racosetup'

if exists(":CompilerSet") != 2
  command -nargs=* CompilerSet setlocal <args>
endif

CompilerSet makeprg=raco\ setup
CompilerSet errorformat=%f:%l:%c:%m