patch 8.0.1748: CmdlineEnter command uses backslash instead of slash commit https://github.com/vim/vim/commit/a4baf5b32519855bb176a7aa0e9397c137ca890a Author: Bram Moolenaar <Bram@vim.org> Date: Sun Apr 22 13:27:44 2018 +0200 patch 8.0.1748: CmdlineEnter command uses backslash instead of slash Problem: CmdlineEnter command uses backslash instead of slash. Solution: Don't treat the character as a file name. (closes https://github.com/vim/vim/issues/2837)

function Test_Comparators()
  try
    let oldisident=&isident
    set isident+=#
    call assert_equal(1, 1 is#1)
  finally
    let &isident=oldisident
  endtry
endfunction