patch 8.2.4679: cannot have expandcmd() give an error message for mistakes Commit: https://github.com/vim/vim/commit/2b74b6805b5c8c4836b66df5d949f5ff6a77f8c7 Author: Yegappan Lakshmanan <yegappan@yahoo.com> Date: Sun Apr 3 21:30:32 2022 +0100 patch 8.2.4679: cannot have expandcmd() give an error message for mistakes Problem: Cannot have expandcmd() give an error message for mistakes. Solution: Add an optional argument to give errors. Fix memory leak when expanding files fails. (Yegappan Lakshmanan, closes #10071)

" Script to fill the window with emoji characters, one per line.
" Source this script: :source %

if &modified
  new
else
  enew
endif

" Use a compiled Vim9 function for speed
def DoIt()
  var lnum = 1
  for c in range(0x100, 0x1ffff)
    var cs = nr2char(c)
    if charclass(cs) == 3
      setline(lnum, '|' .. cs .. '| ' .. strwidth(cs))
      lnum += 1
    endif
  endfor
enddef

call DoIt()
set nomodified