patch 8.1.2228: screenpos() returns wrong values when 'number' is set Commit: https://github.com/vim/vim/commit/38ba4dce4a8574e60f6ddb111922880b0c7affdc Author: Bram Moolenaar <Bram@vim.org> Date: Sun Oct 27 21:39:09 2019 +0100 patch 8.1.2228: screenpos() returns wrong values when 'number' is set Problem: screenpos() returns wrong values when 'number' is set. (Ben Jackson) Solution: Compare the column with the window width. (closes #5133)

" Test if fnameescape is correct for special chars like !
func Test_fnameescape()
  let fname = 'Xspa ce'
  let status = v:false
  try
    exe "w! " . fnameescape(fname)
    let status = v:true
  endtry
  call assert_true(status, "Space")
  call delete(fname)

  let fname = 'Xemark!'
  let status = v:false
  try
    exe "w! " . fname->fnameescape()
    let status = v:true
  endtry
  call assert_true(status, "ExclamationMark")
  call delete(fname)
endfunc