patch 8.0.0227: crash with ff=dos when first line in file has no CR commit https://github.com/vim/vim/commit/2aa5f696b91a51f29873e340de4bdc182e1e8dd4 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jan 24 15:46:48 2017 +0100 patch 8.0.0227: crash with ff=dos when first line in file has no CR Problem: Crash when 'fileformat' is forced to "dos" and the first line in the file is empty and does not have a CR character. Solution: Don't check for CR before the start of the buffer.

" Vim compiler file
" Compiler:	tcl
" Maintainer:	Doug Kearns <dougkearns@gmail.com>
" Last Change:	2004 Nov 27

if exists("current_compiler")
  finish
endif
let current_compiler = "tcl"

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

CompilerSet makeprg=tcl

CompilerSet errorformat=%EError:\ %m,%+Z\ %\\{4}(file\ \"%f\"\ line\ %l),%-G%.%#